Performance information

• 二次元電気化学センサLAASを用いたアセチルコリンエステラーゼ測定の研究—Measurement of Acetylcholinesterase Using a Two-dimensional Electrochemical Sensor; LAAS　　　　　　　　　　　　　　　
  宮入 彬承; 長谷川 有貴; 内田 秀和
  Volume：143, Number：8, First page：219, Last page：224, Aug. 2023
  Japanese
  ISSN：1341-8939, CiNii Books ID：AN1052634X
• Advanced Measurement Technologies for Plants：Health Check for Plant Using Bioelectric Potential　　　　　　　　　　　　　　　
  長谷川 有貴
  Volume：64, Number：4, First page：e1, Last page：e6, Mar. 2023
  農業の現場では，スマート化が進み，環境制御された施設栽培の普及が進められているが，コスト削減のための効率的な栽培を実現するための生理活性評価手法として，リアルタイムかつ簡易な方法は画像として捉える技術があるくらいで，植物自身の情報から判断する技術の導入は進められていない．本稿では，植物の生理活性評価，つまり健康診断を実現する技術として，生体電位測定とその可能性について紹介する．
  Japanese
  DOI：https://doi.org/10.20729/00225238
  DOI ID：10.20729/00225238, CiNii Books ID：AN00116625
• 自己組織化単分子膜で修飾した二次元電気化学センサによる疎水性物質の検出—Detection of Hydrophobic Substance by SAM-formed Two-dimensional Electrochemical Sensor　　　　　　　　　　　　　　　
  濵野 貴成; 長谷川 有貴; 内田 秀和
  Volume：142, Number：10, First page：278, Last page：283, Oct. 2022
  Japanese
  ISSN：1341-8939, CiNii Books ID：AN1052634X
• Development of Rare Earth-containing Langmuir-Blodgett Films and their Application as a Sensing Film for Taste Sensor　　　　　　　　　　　　　　　
  HASEGAWA Yuki; HASEGAWA Miki
  Vacuum and Surface Science, Volume：64, Number：4, First page：168, Last page：173, Apr. 2021
  The LB film is a thin film of regularly accumulated nano-thickness using the amphiphilicity of organic molecules. The thin film is optically polarized and has high directivity of molecular arrangement. Here, we introduce the structure of LB film with rare earth ions, basic properties from the light emission, and the possibility as a taste sensor. The structure of LB film has strong molecular film characteristics due to strong Lewis acidity of rare earth ions. On the other hand, the alkyl chain moiety in the ordered backbone functions as a hydrophobic medium and adsorbs organic molecules in aqueous solution. Using this fact, it was found that organic molecules contained in alcoholic beverages were adsorbed and the potential changed. The addition of rare earths increases the sensitivity of the potential response by approximately three times for LB films without rare earths.
  The Japan Society of Vacuum and Surface Science, Japanese
  DOI：https://doi.org/10.1380/vss.64.168
  DOI ID：10.1380/vss.64.168, ISSN：2433-5835, eISSN：2433-5843, CiNii Articles ID：130008023849, CiNii Books ID：AA12808657
• Light-Addressable Amperometric Sensor with Counter and Working Electrodes of the Same Material　　　　　　　　　　　　　　　
  Keita Kosugi; Yuki Hasegawa; Hidekazu Uchida
  IEEJ Transactions on Electrical and Electronic Engineering, Volume：16, Number：3, First page：478, Last page：485, Mar. 2021
  High-throughput screening is important in various fields, and electrochemical approaches are effective because of advantages such as fast response time and electrode array. Hence, we developed a two-dimensional electrochemical array sensor. However, its signal intensities for lower concentrations of the redox pair (100 μM–100 pM [Fe[CN]6]3−/4−) were unstable
  Therefore, in this study, we investigated and demonstrated a method for improving the signal stability at lower concentrations. Two types of counter electrodes were prepared to assess their influence
  the material of the first electrode was the same as that of the working electrode (same material condition), and the other was prepared from a different material (different material condition). First, the differences in the electric potentials between different materials were investigated at lower concentrations. Furthermore, the concentration dependence was investigated using our newly developed light-addressable amperometric sensor for the two conditions. In the different condition, it was observed that differences in the electric potentials between the electrodes at lower concentrations. It was also observed that the signal intensity was more stable for the same material condition than the different material condition. Limit of detection(LOD) for the same material condition was lower than that under the different material condition. The proposed method using the same materials is thus an effective means to measure low concentrations of redox ions and expected to contribute to a fabrication of a smaller and more stable device without reference electrode. © 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.
  John Wiley and Sons Inc, English, Scientific journal
  DOI：https://doi.org/10.1002/tee.23319
  DOI ID：10.1002/tee.23319, ISSN：1931-4981, SCOPUS ID：85099313763
• Study of detection method for collagenase enzyme reaction using two dimensional electrochemical sensor　　　　　　　　　　　　　　　
  Masato Shichijo; Yuki Hasegawa; Hidekazu Uchida
  Electronics and Communications in Japan, Volume：103, Number：11-12, First page：90, Last page：96, Dec. 2020
  This paper addresses the assay of collagenase activity using Light Addressable Amperometric Sensor (LAAS). The redox current of LAAS was reduced by deposited collagen layers and recovered by collagenase solution. The collagen layers on the LAAS is considered to be broken down by collagenase. We expect an application of LAAS to activity evaluation.
  Wiley-Liss Inc., English, Scientific journal
  DOI：https://doi.org/10.1002/ecj.12270
  DOI ID：10.1002/ecj.12270, ISSN：1942-9541, SCOPUS ID：85089913638
• Realization of “Proactive, Interactive and Authentic Learning” of Electrical Engineering Field in Primary and Secondary Education　　　　　　　　　　　　　　　
  HASEGAWA Yuriko; HASEGAWA Yuki
  The Journal of The Institute of Electrical Engineers of Japan, Volume：140, Number：10, First page：652, Last page：655, Oct. 2020
  1．はじめに
  
  2017年3月，「アクティブ（能動的）・ラーニング（学習）」を取り入れた学習指導要領が告示され，2020年度から小学校で，翌2021年度から中学校で，新学習指導要領に基づく指導がスタートする。
  
  新しい小学校学習指導要領^（1）の理科の中で，「電気」に
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejjournal.140.652
  DOI ID：10.1541/ieejjournal.140.652, ISSN：1340-5551, eISSN：1881-4190, CiNii Articles ID：130007920118, CiNii Books ID：AN10432927
• Study of Hybrid Type Two-dimensional Electrochemical Sensor　　　　　　　　　　　　　　　
  Maejima Kazuma; Hasegawa Yuki; Uchida Hidekazu
  IEEJ Transactions on Sensors and Micromachines, Volume：140, Number：6, First page：144, Last page：149, Jun. 2020
  In the field of life science such as drug discovery, technological innovation of molecular evolution is required. We have been studied Light Addressable Amperometric Sensor (LAAS) using organic and inorganic semiconductors as one of new technologies. Hybrid pn junction LAAS devices are fabricated by combining a plurality of organic materials with different Si types. We evaluated the developed devices in terms of concentration dependency and image measurement. As a result, concentration dependency was obtained in the range of 1 mM to 100 nM. Since this device can apply a reverse bias voltage, concentration dependency can be expected even in a further low concentration region.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.140.144
  DOI ID：10.1541/ieejsmas.140.144, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：130007850138, CiNii Books ID：AN1052634X
• Study of Detection Method for Collagenase Enzyme Reaction using Two Dimensional Electrochemical Sensor　　　　　　　　　　　　　　　
  Shichijo Masato; Hasegawa Yuki; Uchida Hidekazu
  IEEJ Transactions on Sensors and Micromachines, Volume：140, Number：5, First page：98, Last page：102, May 2020
  This paper addresses the assay of collagenase activity using Light Addressable Amperometric Sensor (LAAS). The redox current of LAAS was reduced by deposited collagen layers and recovered by collagenase solution. The collagen layers on the LAAS is considered to be broken down by collagenase. We expect an application of LAAS to activity evaluation.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.140.98
  DOI ID：10.1541/ieejsmas.140.98, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：130007839232, CiNii Books ID：AN1052634X
• Development of LB film taste sensor for beer degradation evaluation and its physical properties　　　　　　　　　　　　　　　
  Masayoshi Yazawa; Kazunari Takahashi; Hidekazu Uchida; Yuki Hasegawa
  Electronics and Communications in Japan, Volume：102, Number：11, First page：47, Last page：54, Nov. 2019
  In general, beer degradation is evaluated by sensory test
  however, it depends on the subjectivity of an inspector. Therefore, it is highly required that an objective evaluation method is developed. It has been clarified that the degradation degree of beer proceeds mainly by oxidation of components derived from malt and formation of nonelectrolyte trans-2-nonenal. In this study, we developed LB film taste sensor using metal complex for evaluating the degradation degree of beer with trans-2-nonenal concentrations. In addition, the physical properties of three metal electrodes and sensing film surface were evaluated with AFM and FT-IR, and these results and the sensor response characteristics were compared and discussed for improving the sensitivity as a sensor for beer degradation evaluation.
  Wiley-Liss Inc., English, Scientific journal
  DOI：https://doi.org/10.1002/ecj.12219
  DOI ID：10.1002/ecj.12219, ISSN：1942-9541, SCOPUS ID：85074642256
• Development of LB Film Taste Sensor for Beer Degradation Evaluation and its Physical Properties　　　　　　　　　　　　　　　
  Yazawa Masayoshi; Takahashi Kazunari; Uchida Hidekazu; Hasegawa Yuki
  IEEJ Transactions on Sensors and Micromachines, Volume：139, Number：9, First page：289, Last page：295, Sep. 2019
  In general, beer degradation is evaluated by sensory test, however it depends on the subjectivity of an inspector. Therefore, it is highly required that an objective evaluation method is developed. It has been clarified that the degradation degree of beer proceeds mainly by oxidation of components derived from malt and formation of non-electrolyte trans-2-nonenal. In this study, we developed LB film taste sensor using metal complex for evaluating the degradation degree of beer with trans-2-nonenal concentrations. In addition, the physical properties of three metal electrodes and sensing film surface were evaluated with AFM and FT-IR, and these results and the sensor response characteristics were compared and discussed for improving the sensitivity as a sensor for beer degradation evaluation.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.139.289
  DOI ID：10.1541/ieejsmas.139.289, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：130007699877, CiNii Books ID：AN1052634X
• Ripeness Evaluation of Post Harvest Fruits using Plant Bioelectric Potential　　　　　　　　　　　　　　　
  Ishida Ryota; Uchida Hidekazu; Hasegawa Yuki; Iohara Keishi; Koizumi Daisuke
  IEEJ Transactions on Sensors and Micromachines, Volume：138, Number：9, First page：423, Last page：429, Sep. 2018
  We proposed a novel technique for ripeness evaluation of post harvest fruits using plant bioelectric potential response which has been reported about a relationship with ambient environment conditions and physiological activities of plant. It is widely known that the ripeness of climacteric fruits improves after harvest. In this paper, we measured the bioelectric potential of climacteric fruits (pumpkins and apples) with the elapse of the days for evaluating the ripening stage of fruits. The results indicated that the bioelectric potential measurement has a possibility to evaluate the fruit ripeness.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.138.423
  DOI：https://doi.org/10.1541/ieejsmas.141.378_references_DOI_WVKtG9gmRzmakFC6aZqKPdYwh6R
  DOI ID：10.1541/ieejsmas.138.423, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：130007479705, CiNii Books ID：AN1052634X
• Study on the Electrochemical Array Sensor using pn Junctions of the Inorganic Semiconductor　　　　　　　　　　　　　　　
  Kosugi Keita; Hasegawa Yuki; Uchida Hidekazu
  IEEJ Transactions on Sensors and Micromachines, Volume：138, Number：5, First page：204, Last page：207, May 2018
  Recently, a more efficient method of drag screening is expected because a demand of medicines grows rapidly. In this study, we use Light Addressable Amperometric Sensor (LAAS) with inorganic pn junction to measure redox currents of individual 1 µL samples. We will show the results of redox pair concentration dependence of LAAS signal using LAAS with well-array plate. The obtained results indicated that monotonically decreasing between concentration and redox current over range 10 mM-0.01 µM. The limit of detection is 1 µM.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.138.204
  DOI ID：10.1541/ieejsmas.138.204, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：130006729818, CiNii Books ID：AN1052634X
• LB Film Taste Sensor Using Metal Complex for Evaluating Degradation Degree of Beer.　　　　　　　　　　　　　　　
  Yuki Hasegawa; Masayoshi Yazawa; Hidekazu Uchida
  IEEE 7th Global Conference on Consumer Electronics(GCCE), First page：829, Last page：830, 2018
  IEEE, International conference proceedings
  DOI：https://doi.org/10.1109/GCCE.2018.8574823
  DOI ID：10.1109/GCCE.2018.8574823, DBLP ID：conf/gcce/HasegawaYU18
• Study of Two-dimensional Electrochemical Sensor using an Inorganic Semiconductor　　　　　　　　　　　　　　　
  Sekido Hidetaka; Hasegawa Yuki; Uchida Hidekazu
  IEEJ Transactions on Sensors and Micromachines, Volume：136, Number：5, First page：203, Last page：207, 2016
  We have been studied the light addressable amperometric sensor (LAAS) using an organic device since it has advantages in cost, flexibility, and large sensing area. However, it can be expected that the LAAS device using an inorganic semiconductor has high-durability even under severe conditions. We will demonstrate the array of amperometric sensors with discrete electrodes on Schottky junctions or pn junctions of Si wafer.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.136.203
  DOI ID：10.1541/ieejsmas.136.203, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：130005149061, CiNii Books ID：AN1052634X
• Study on Inorganic Film Taste Sensor for Hot Drink Evaluation　　　　　　　　　　　　　　　
  Tamura Yosuke; Uchida Hidekazu; Hasegawa Yuki
  IEEJ Transactions on Sensors and Micromachines, Volume：136, Number：5, First page：180, Last page：185, 2016
  We aimed to develop taste sensor for evaluating hot drinks using several metal oxide films (ZnO, SnO₂, WO₃ and In₂O₃) as a sensing film. The films were formed using Pulse Laser Deposition method on Pt/Ag electrode. We measured the sensor responses for saltiness (NaCl), sweetness (Glucose), and mixed solution of saltiness and sweetness at 60 degrees. We observed the different responses from each sensing film. In these results, all developed sensors responded depending on saltiness concentration and the response value differed by kind of sensing films. On the other hand, it was shown that sensors can detect high concentration sweetness. These results suggest that our developed sensor have a capability to detect taste components and taste interaction in hot drinks.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.136.180
  DOI ID：10.1541/ieejsmas.136.180, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：130005149055, CiNii Books ID：AN1052634X
• Quality Evaluation for Japanese Sake Using Taste Sensor with LB Films　　　　　　　　　　　　　　　
  Hiroki Mamoru; Uchida Hidekazu; Hasegawa Yuki; Hasegawa Miki
  IEEJ Transactions on Sensors and Micromachines, Volume：136, Number：5, First page：198, Last page：202, 2016
  In this study, we developed a novel taste sensor with Langmuir Blodgett (LB) films for evaluating the quality of Japanese sake. The sensing films were made of stearic acid (SA), DODABr and lanthanides coordinating with SA (Ln-SA), specifically, Tb-SA and Eu-SA. We measured electrical potentials of three different kinds of Japanese sake by the developed sensors. As a result, we obtained the different responses from each sensor. In addition, these results showed that the Ln-SA films enhanced the sensitivity of taste sensors with LB films to Japanese sake. This study indicates that Japanese sake of different manufacturing processes are discriminated by principal component analyses for developed sensor responses, and the modification of LB film materials makes it possible to develop high sensitivity taste sensor systems for evaluating the quality of Japanese sake.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.136.198
  DOI：https://doi.org/10.1016/j.jef.2017.05.006_references_DOI_P3pLu2gBhRT34mzHv1VYQIIFQd1
  DOI ID：10.1541/ieejsmas.136.198, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：130005149056, CiNii Books ID：AN1052634X
• Analysis of plant bioelectric potential response to illumination by curve fitting　　　　　　　　　　　　　　　
  Ki Ando; Yuki Hasegawa; Hidekazu Uchida; Akinori Kanasugi
  Sensors and Materials, Volume：26, Number：7, First page：471, Last page：482, 2014
  Measurement of plant bioelectric potential is one of the promising methods for evaluating plant activities. For example, the photosynthetic rate can be evaluated using the amplitude of the potential response to illumination. In our previous work, we found that this potential response consisted of two potential variations due to photochemical and carbon-fixation reactions. These reactions are important parts of the photosynthetic reaction. However, these potential variations may overlap each other. In this case, a waveform of the potential response differed variously, and it was difficult to evaluate the photosynthetic rate using its amplitude. Therefore, we performed curve fitting for estimating and separating these overlapped potential variations. First, we defined f1 and f2 as functions to represent the potential variations due to the photochemical and carbonfixation reactions, respectively. Additionally, we modelled the potential response to illumination as F =f1 +f2 and we fit F to the original data of the potential response. As a result of curve fitting, F fit to the original data of the potential response very well. The amplitude of f2 strongly correlated with the photosynthetic rate. This result suggested that information on the photosynthetic rate was recovered by curve fitting. We consider that this method can be applied to a more accurate evaluation of the photosynthetic activity using the bioelectric potential of the plant.
  M Y U Scientific Publishing Division, English, Scientific journal
  ISSN：0914-4935, SCOPUS ID：84908203974
• Ambient temperature effects on evaluation of plant physiological activity using plant bioelectric potential　　　　　　　　　　　　　　　
  Yuki Hasegawa; Genta Yamanaka; Ki Ando; Hidekazu Uchida
  Sensors and Materials, Volume：26, Number：7, First page：461, Last page：470, 2014
  The plant factory has been in practical use for ensuring a stable food supply and cultivating high-quality food. However, it has problems with capital and operating expenditures, because it is necessary to prepare a big room of the same level of cleanliness as that of a semiconductor factory and to use a full environment control system that includes an air conditioner, a feed nutrient solution line, and sensing devices in continuous operation. Therefore, we focused on the bioelectric potential response as a promising and low-cost approach of evaluating plant physiological activities. Bioelectric potential is generated by ions in a plant cell and the potential is related to plant physiological activities. Although we already reported that the potential response differs depending on the on-off cycle of illumination and is related to photosynthetic activity, there is no report on the effects of ambient temperature and light interruption time on the measurement of bioelectric potential. In this study, we investigated the effects of ambient temperature and light interruption time on the evaluation of plant physiological activities. In the experiments, we measured bioelectric potential responses and CO2 concentration when light irradiation was started or stopped at several temperatures. In addition, we investigated the effect of the light interruption time on the evaluation of plant physiological activities using plant bioelectric potential. These results contribute to the improvement of the precision of the evaluation system for plant physiological activities using bioelectric potential responses.
  M Y U Scientific Publishing Division, English, Scientific journal
  DOI：https://doi.org/10.18494/sam.2014.1013
  DOI ID：10.18494/sam.2014.1013, ISSN：0914-4935, SCOPUS ID：84908161016
• Study on the two-dimensional chemical sensor using a photoconductive polymer film　　　　　　　　　　　　　　　
  Hideki Arai; Daisuke Goto; Yuki Hasegawa; Hidekazu Uchida
  IEEJ Transactions on Sensors and Micromachines, Volume：133, Number：7, First page：290, Last page：296, 2013
  We have developed the two-dimensional chemical sensor using a photoconductive polymer film. This paper presents the refined fabrication process and the characteristics of the devices. We investigated poly(N-vinylcarbazole) (PVK) and poly(2-vinylcarbazole) (2-PVK) as the photoconductive materials. Copper(II)2,9,16,23-tetra-tert-butyl-29H,31H- phthalocyanine (Bu-CuPc) was used as dopant for dye sensitization. We fabricated the devices by spin-coat method. From the results of our study, the device fabricated by using 2-PVK with Bu-CuPc showed high photoconductivity, high S/N and concentration dependence. The detection limit of K3Fe(CN) 6/K4Fe(CN)6 was approximately 1nM. Moreover, it was found that the photoconductivity depended on the quantity of dopant and the thickness of the film. It was also found that the S/N depended on the flatness of the film. In future study, we will intend to perform two-dimensional measurement. © 2013 The Institute of Electrical Engineers of Japan.
  Japanese, Scientific journal
  DOI：https://doi.org/10.1541/ieejsmas.133.290
  DOI ID：10.1541/ieejsmas.133.290, ISSN：1341-8939, SCOPUS ID：84880049106
• 食の安全・安心に関する管理システムとセンシング—Sensing Trend on Food Safety and Security and the Management System　　　　　　　　　　　　　　　
  野田 和俊; 長谷川 有貴; 南戸 秀仁
  Volume：24, Number：2, First page：95, Last page：102, Jul. 2012
  Japanese
  ISSN：0915-5023, CiNii Articles ID：40019406140, CiNii Books ID：AN10544501
• Development of Taste Sensor with LB Films for Measurement of High-intensity Sweetener　　　　　　　　　　　　　　　
  Asami Tetsuya; Hasegawa Yuki; Ando Ki; Uchida Hidekazu; Yaji Tamaki
  IEEJ Transactions on Sensors and Micromachines, Volume：132, Number：6, First page：166, Last page：171, 2012
  Recently, development of taste sensor is furthered for quality control of foods. In this study, we developed taste sensor with stearic acid LB films for measurement of high-intensity sweetener taste. We measured several high-intensity sweeteners with the number of layers of stearic acid LB films as 10 and 20 layers. And we also measured mixed high-intensity sweeteners. The result showed that the stearic acid LB films taste sensor was used to detect glucose and high-intensity sweeteners at a threshold level of taste. Stearic acid LB films sensor detects different response by mixed ratio of high-intensity sweeteners. In addition, we compared difference of sensor responses by three kind of storing conditions (vacuum vessel, KCl solution and the air storing). The result showed that the structure of stearic acid LB films is easily affected by moisture in storage environment. This study indicated that the modification of stearic acid LB film layers and materials makes it possible to develop high sensitivity and selectivity taste sensor for sweeteners.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.132.166
  DOI：https://doi.org/10.1380/vss.64.168_references_DOI_VAiPwGLyIqknQvckcQrPWDF9emB
  DOI ID：10.1541/ieejsmas.132.166, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：10030607233, CiNii Books ID：AN1052634X
• Study of Plant Bioelectric Potential Response due to Photochemical Reaction and Carbon-fixation Reaction in Photosynthetic Process　　　　　　　　　　　　　　　
  Ando Ki; Hasegawa Yuki; Yaji Tamaki; Uchida Hidekazu
  IEEJ Transactions on Sensors and Micromachines, Volume：132, Number：6, First page：159, Last page：165, 2012
  We focused on measurement of the bioelectric potential as a method of evaluating plant activities and supporting effective cultivation. In this study, we researched on the bioelectric potential response due to photochemical reaction and carbon-fixation reaction in the process of photosynthesis. At first, we measured the bioelectric potential when illumination started and stopped, under N₂ gas condition for suppressing carbon-fixation reaction and respiration. In the result, amplitude of the potential response related to illumination intensity and wave length. We considered that the amplitude of potential response in N₂ condition indicated activity of photochemical reaction. Based on this result, we investigated the potential response in room air condition. If carbon-fixation reaction was deactivated by long dark period, significant potential decrease was observed when illumination started. In contrast, if carbon-fixation reaction kept active during short dark period, potential decrease was slight or none regardless of photosynthetic rate. Therefore, we considered that this potential decrease related to activation of carbon-fixation reaction. Next, we researched on relationship between plant activities and the potential response when illumination stopped. The result shows that amplitude of the response related to illumination intensity and respiration rate. We conclude that plant activities such as photosynthesis can be evaluated in more detail by measurement of the bioelectric potential with applying this study.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.132.159
  DOI：https://doi.org/10.1541/ieejsmas.141.378_references_DOI_BjeNCFmKRdPsu1PM1ivaaqogHSR
  DOI ID：10.1541/ieejsmas.132.159, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：10030607217, CiNii Books ID：AN1052634X
• Commemoration of Electro-Technologies and Innovation　　　　　　　　　　　　　　　
  Suzuki Hiroshi; Kobayashi Yoshio; Hasegawa Yuki
  IEEJ Transactions on Fundamentals and Materials, Volume：132, Number：1, First page：33, Last page：36, 2012
  The electric technology had contributed to the human life in 20^th century, Now it is time to reward important contributions to this innovation, such as Persons, Materials, Locations, etc.. Such kind of award enshrines the hidden stories of electric technology to the public. IEEJ has responsibility to carry out these activities.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejfms.132.33
  DOI ID：10.1541/ieejfms.132.33, ISSN：0385-4205, eISSN：1347-5533, CiNii Articles ID：10030523636, CiNii Books ID：AN10136312
• Study of Plant Bioelectric Potential Response due to Photosynthesis Reaction　　　　　　　　　　　　　　　
  Ando Ki; Hasegawa Yuki; Yaji Tamaki; Uchida Hidekazu
  IEEJ Transactions on Sensors and Micromachines, Volume：131, Number：9, First page：337, Last page：342, 2011
  Bioelectric potential is generated by ions in a plant cell and the potential changes with physiological activities of the plant. Therefore, measurement of the potential is a promising method for evaluation of the plant activities. In this study, we investigated mechanism of the potential response generation due to photosynthesis reaction of plant. For this purpose, we measured bioelectric potential with replacing air by N₂ gas in order to suppress carbon-fixation reaction. In the result, the potential response was different from ambient gas, and we clarified that several behaviors of the potential response strongly related to activities of photochemical reaction and carbon-fixation reaction. Next, we measured the potential when illuminating condition was changed for accelerating or decelerating photosynthesis. At that time, shape of the potential response correlated with increase or decrease of photosynthetic rate. We considered that the measurement of the bioelectric potential can be applied to evaluation of photosynthetic activity and it can support for effective cultivation.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.131.337
  DOI：https://doi.org/10.1541/ieejsmas.141.378_references_DOI_S0ap9Pu3j2l9FBUDdzV1QSPho8H
  DOI ID：10.1541/ieejsmas.131.337, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：10030533038, CiNii Books ID：AN1052634X
• 各種センサの電気的応答特性を利用した味を呈する溶液の識別—Discrimination of taste solutions using electrical characteristics of various sensors—2008年度日本味と匂学会第42回大会　　　　　　　　　　　　　　　
  小島 洋一郎; 長谷川 有貴; 立野 靖大
  Volume：15, Number：3, First page：397, Last page：400, Dec. 2008
  Japanese
  ISSN：1340-4806, CiNii Articles ID：110007369651, CiNii Books ID：AA11426393
• Analyzing Bioelectric Potential Response of Plants Related to Photosynthesis under Blinking Irradiation.　　　　　　　　　　　　　　　
  Ki Ando; Yuki Hasegawa; Hitoshi Maekawa; Teruaki Katsube
  IEICE Transactions on Electronics, Volume：91-C, Number：12, First page：1905, Last page：1909, 2008
  Scientific journal
  DOI：https://doi.org/10.1093/ietele/e91-c.12.1905
  DOI ID：10.1093/ietele/e91-c.12.1905, DBLP ID：journals/ieicet/AndoHMK08
• An Amperometric Sensor for Chemical Imaging Using Photoconductive Organic Film.　　　　　　　　　　　　　　　
  Takuya Hagiwara; Masataka Takazawa; Hidekazu Uchida; Yuki Hasegawa; Tamaki Yaji
  IEICE Transactions on Electronics, Volume：91-C, Number：12, First page：1863, Last page：1868, 2008
  Scientific journal
  DOI：https://doi.org/10.1093/ietele/e91-c.12.1863
  DOI ID：10.1093/ietele/e91-c.12.1863, DBLP ID：journals/ieicet/HagiwaraTUHY08
• High Temperature and High Sensitive NOx Gas Sensor with Pt/SnO₂/SiC/Ni Heterojunction Structure　　　　　　　　　　　　　　　
  Wei Gao; Khan Shabbir A.; shi Liqin; Hasegawa Yuki; Katsube Teruaki
  IEEJ Transactions on Sensors and Micromachines, Volume：125, Number：2, First page：57, Last page：63, 2005
  In order to develop a high temperature (200°C˜400°C) and high sensitive NOx gas sensor with SiC based junction structure, a hetero-junction structure, Pt/SnO₂/SiC/Ni, was investigated and compared with the catalytic metal gate Schottky structure (Pt/SiC/Ni) sensor. It was found that the hetero-junction device showed much higher sensitivity to NO₂ gas compared with the Schottky junction structure sensor, whereas Schottky structure device had better sensitivity to NO gas than a hetero-junction structure sensor. These results suggest that selective detection of NO and NO₂ gases may be attained with these different structure devices.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.125.57
  DOI：https://doi.org/10.1541/ieejsmas.126.643_references_DOI_86rJE28IRkcAS14YGCaWsdHuAHA
  DOI ID：10.1541/ieejsmas.125.57, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：10014301576, CiNii Books ID：AN1052634X

• 盆栽の植物生体電位と周囲環境要因の相関性に関する研究—Study on the correlation between plant bioelectric potential of Bonsai and ambient environmental factors—ケミカルセンサ研究会 ケミカル・バイオセンサとそのプロセス技術および一般　　　　　　　　　　　　　　　
  山田 智裕; 長谷川 有貴
  Volume：2023, Number：16-25, First page：33, Last page：36, 2023
  Japanese
• クラフトビールのオフフレーバー評価のためのガスセンサシステムの開発—Development of a gas sensor system for off-flavor evaluation of craft beer　　　　　　　　　　　　　　　
  望月 圭祐; 長谷川 有貴; 藤原 隆司; 朝霧 重治; 塩野 智隆; 目黒 匠; 松本 みなみ
  Volume：39, First page：6p, Nov. 2022
  Japanese
• 分子鋳型法を用いたLAASのノナナールの選択的検出に関する研究—Study on selective Detection of Nonanal in LAAS Using Molecular Template Method　　　　　　　　　　　　　　　
  谷本 優; 長谷川 有貴; 内田 秀和
  Volume：39, First page：5p, Nov. 2022
  Japanese
• 栽培環境データに基づく植物生体電位の時系列データ解析—Time-series data analysis of plant bioelectric potential based on cultivation environment data　　　　　　　　　　　　　　　
  山口 拓将; 長谷川 有貴
  Volume：39, First page：5p, Nov. 2022
  Japanese
• ケミカルセンサ ケンキュウカイ 【 E ブモン ソウゴウ ケンキュウカイ 】 ケミカル ・ バイオセンサ ト ソノ プロセス ギジュツ オヨビ イッパン　　　　　　　　　　　　　　　
  宮入 彬承; 長谷川 有貴; 内田 秀和
  Volume：2022, Number：20-35, First page：27, Last page：31, Jun. 2022
  Japanese
• ケミカルセンサ ケンキュウカイ 【 E ブモン ソウゴウ ケンキュウカイ 】 ケミカル ・ バイオセンサ ト ソノ プロセス ギジュツ オヨビ イッパン　　　　　　　　　　　　　　　
  鈴木 愛奈; 内田 秀和; 長谷川 有貴
  Volume：2022, Number：20-35, First page：1, Last page：4, Jun. 2022
  Japanese
• 植物生体電位を用いた植物の生理活性評価に与える周囲温度の影響—Effect of ambient temperature on the evaluation of plant physiological activity using plant bioelectrical potentials—マイクロマシン・センサシステム/ケミカルセンサ/バイオ・マイクロシステム合同研究会 E部門総合研究会 招待講演セッション　　　　　　　　　　　　　　　
  加藤 遼; 長谷川 有貴
  Volume：2022, Number：14-25, First page：47, Last page：50, Jun. 2022
  Japanese
• ケミカルセンサ ケンキュウカイ ノウギョウ ・ カンキョウ センシング 、 イッパン
  盛本 裕貴; 長谷川 有貴
  Volume：2021, Number：28・30-33, First page：1, Last page：4, 10 Dec. 2021
  Japanese
  CiNii Articles ID：40022796483
• 細胞電位測定による植物生体電位の光応答メカニズム解明に関する研究—Study on elucidation of optical response mechanism of plant bioelectric potential by cell potential measurement　　　　　　　　　　　　　　　
  山﨑 洋孝; 長谷川 有貴
  Volume：38, First page：4p, Nov. 2021
  Japanese
• クラフトビールの保存条件によるオフフレーバーの発生とその評価—Off-flavor of craft beer occurrence due to preservation conditions and its evaluation　　　　　　　　　　　　　　　
  望月 圭祐; 長谷川 有貴
  Volume：38, First page：4p, Nov. 2021
  Japanese
• ディープラーニングを用いた樹皮画像解析による樹種判別—Tree Species Identification by Bark Images Analysis Using Deep Learning—ケミカルセンサ研究会 ケミカル・バイオセンサとそのプロセス技術および一般
  小林 巧暉; 長谷川 有貴
  Volume：2021, Number：14-26, First page：53, Last page：56, Jul. 2021
  Japanese
  CiNii Articles ID：40022664652
• 封止用液体としてシリコーンオイルを用いた二次元電気化学センサの研究—Study on the two-dimensional electrochemical sensor using silicone oil as the sealing liquid—マイクロマシン・センサシステム/ケミカルセンサ/バイオ・マイクロシステム合同研究会 Society 5.0における農業および環境センシング技術,香りの計測と心理・生理学的効果の応用,センサ一般
  力石 健太; 長谷川 有貴; 内田 秀和
  Volume：2021, Number：1-13, First page：9, Last page：12, 01 Mar. 2021
  Japanese
  CiNii Articles ID：40022539569
• 金属酸化物を用いた温飲料用味覚センサの甘味に対する応答特性評価—Evaluation of Response Characteristics of Metal Oxide Taste Sensors for Hot drink to Sweet Taste—マイクロマシン・センサシステム/ケミカルセンサ/バイオ・マイクロシステム合同研究会 Society 5.0における農業および環境センシング技術,香りの計測と心理・生理学的効果の応用,センサ一般
  岩井 大; 長谷川 有貴
  Volume：2021, Number：1-13, First page：13, Last page：16, 01 Mar. 2021
  Japanese
  CiNii Articles ID：40022539575
• 異なる光照射がエゴマの生体電位応答と生長に与える影響<数学・自然科学>　　　　　　　　　　　　　　　
  古賀 竜眞; 荒木 祐二; 長谷川 有貴; 佐竹 優志
  Volume：70, Number：2, First page：483, Last page：491, 2021
  type:text
  The study aimed to determine the most suitable light environment for cultivation of medicinal plants using plant bioelectric potential as an index. Perilla frutescens var. frutescens was selected as a medicinal plant, which is relatively easy to obtain, fast-growing, and easy to grow. In this study, three different light sources (A, B, and C) with varied light spectrum ratios, were used to cultivate P. frutescens var. frutescens. We compared the Von (difference between minimum and maximum bioelectric potential) among the light sources. P. frutescens var. frutescens was harvested 30 days after germination, and plant height, Base diameter, Number of leaves, fresh weight, and Raw weight of leaf were measured. Von for light source C was determined to be the largest. Plants cultivated under light source C demonstrated the maximum plant height and Raw weight of leaf. Light source C had a higher intensity at wavelengths of 450 nm compared with the other sources. However, wavelength region promoting growth of P. frutescens var. frutescens remains unidentified.
  Japanese
  DOI：https://doi.org/10.24561/00019417
  DOI ID：10.24561/00019417, ISSN：1881-5146, CiNii Articles ID：120007174079
• 植物生体電位の交流成分を用いた栽培環境制御システムの開発—Development of cultivation environment control system using AC components of bioelectric potential
  盛本 裕貴; 内田 秀和; 長谷川 有貴
  Volume：37, First page：3p, Oct. 2020
  Japanese
  CiNii Articles ID：40022580632
• 自己組織化単分子膜を形成した無機半導体ショットキー接合を用いたアレイ化電気化学センサの研究—Study of the Electrochemical Array Sensor using Schottky Junctions of the Inorganic Semiconductor with self-assembled monolayer
  齊藤 勇太; 長谷川 有貴; 内田 秀和
  Volume：37, First page：5p, Oct. 2020
  Japanese
  CiNii Articles ID：40022580222
• 感応膜のTb(Ⅲ)錯体混合比がビール劣化度評価用LB膜センサの特性に及ぼす影響—Influence of Tb(Ⅲ) metal complex ratio on LB film sensor characteristics for evaluating degradation of beer
  辨野 和馬; 内田 秀和; 長谷川 有貴
  Volume：37, First page：4p, Oct. 2020
  Japanese
  CiNii Articles ID：40022578830
• 植物生体電位による植物の空気質浄化能力の評価—Evaluation of air quality purification ability of plant using plant bioelectric potential
  成 金倍; 内田 秀和; 長谷川 有貴
  Volume：37, First page：3p, Oct. 2020
  Japanese
  CiNii Articles ID：40022581332
• 異なる光スペクトル比率で栽培したアカジソ（Perilla frutescens var. crispa）の生体電位応答の比較<数学・自然科学>　　　　　　　　　　　　　　　
  小玉 竜也; 荒木 祐二; 長谷川 有貴; 佐竹 優志
  Volume：69, Number：1, First page：417, Last page：422, 2020
  type:text
  The study aimed to determine the most suitable light environment for cultivation of medicinal plants using plant bioelectric potential as an index. Perilla frutescens var. crispa was selected as a medicinal plant, which is relatively easy to obtain, fast-growing, and easy to grow. In this study, four different light sources (A, B, C, and D) with varied light spectrum ratios, were used to cultivate P. frutescens var. crispa. We compared the Von (difference between minimum and maximum bioelectric potential) among the light sources. P. frutescens var. crispa was harvested 30 days after germination, and plant height and fresh weight were measured. Von for light source B was determined to be the largest (80-90 mV). Plants cultivated under light source B demonstrated the maximum plant height and fresh weight. Light source B had a higher intensity at wavelengths of 450 and 660 nm compared with the other sources. However, wavelength region promoting growth of P. frutescens var. crispa remains unidentified.
  Japanese
  DOI：https://doi.org/10.24561/00018929
  DOI ID：10.24561/00018929, ISSN：1881-5146, CiNii Articles ID：120006860710
• 水耕栽培用養液評価のためのマルチイオンセンサの開発—Development of multi-ion sensor for evaluating nutrient solution in hydroponic
  阿部 凌大; 内田 秀和; 長谷川 有貴
  Volume：36, First page：4p, Nov. 2019
  Japanese
  CiNii Articles ID：40022579539
• CNNモデルのファインチューニングによる顕微鏡画像からの植物種判別—Plant species identification from microscope images using Fine-tuning of CNN
  高野 郁弥; 内田 秀和; 長谷川 有貴
  Volume：36, First page：4p, Nov. 2019
  Japanese
  CiNii Articles ID：40022578546
• 金属錯体混合LB膜を用いたビールの劣化度評価用センサの開発—Development of beer degradation evaluation sensor using LB films with metal complex
  辨野 和馬; 長谷川 有貴; 内田 秀和
  Volume：36, First page：4p, Nov. 2019
  Japanese
  CiNii Articles ID：40022581423
• 二次元電気化学センサ(LAAS)によるコラゲナーゼの反応検出の研究—Study of detection method for collagenase enzyme reaction using two dimensional electrochemical sensor—ケミカルセンサ研究会 ケミカル・バイオセンサとそのプロセス技術および一般
  七條 雅人; 長谷川 有貴; 内田 秀和
  Volume：2019, Number：13-29, First page：23, Last page：26, Jul. 2019
  Japanese
  CiNii Articles ID：40021983161
• ケミカルセンサ バイオ ・ マイクロ システム ゴウドウ ケンキュウカイ ケミカルセンサ ノ ミズ センシングデバイス エ ノ オウヨウ 、 バイオ ・ マイクロ システム エ ノ オウヨウ オヨビ イッパン
  ヤマグチ トミハル; フタガワ マサト; タケイ ヨシノリ; ナント ヒデヒト
  Volume：2018, Number：22-27, First page：13, Last page：15, 26 Nov. 2018
  Japanese
  CiNii Articles ID：40021750058
• ケミカルセンサ バイオ ・ マイクロ システム ゴウドウ ケンキュウカイ ケミカルセンサ ノ ミズ センシングデバイス エ ノ オウヨウ 、 バイオ ・ マイクロ システム エ ノ オウヨウ オヨビ イッパン
  ヤザワ マサヨシ; タカハシ カズナリ; ウチダ ヒデカズ
  Volume：2018, Number：22-27, First page：5, Last page：8, 26 Nov. 2018
  Japanese
  CiNii Articles ID：40021750013
• 植物生体電位による栽培時のリアルタイム生理活性評価—In situ evaluation of physiological activity by plant bioelectric potential　　　　　　　　　　　　　　　
  長谷川 有貴; 室橋 郁也
  Volume：2, Number：6, First page：612, Last page：615, Jun. 2018
  Japanese
  ISSN：2432-5511, CiNii Articles ID：40021808478, CiNii Books ID：AA12770259
• マイクロアレイ型電気化学センサの研究—Study of microarray electrochemical sensor
  七條 雅人; 長谷川 有貴; 内田 秀和
  Volume：35, First page：4p, 2018
  Japanese
  CiNii Articles ID：40021974949
• 植物生体電位とAE測定を用いた果菜類の水ストレス診断—Water stress diagnosis of fruit vegetables using plant bioelectric potential and acoustic emission measurement
  佐竹 優志; 内田 秀和; 長谷川 有貴
  Volume：35, First page：5p, 2018
  Japanese
  CiNii Articles ID：40021976278
• 施設栽培環境制御のための植物生体電位測定—Bioelectric potential measurement for controlling facility cultivation environment
  松本 真美; 内田 秀和; 長谷川 有貴
  Volume：35, First page：4p, 2018
  Japanese
  CiNii Articles ID：40021977142
• 光電効果を用いた電気化学センサによる酸化体メディエータ濃度測定の研究—Study on Measurement of Oxide Mediator Concentration by Electrochemical Sensor Using Photoelectric Effect
  小杉 恵太; 長谷川 有貴; 内田 秀和
  Volume：35, First page：5p, 2018
  Japanese
  CiNii Articles ID：40021974953
• 植物生体電位を用いた栽培支援および収穫後果実の熟度評価—Cultivation support and evaluation of postharvest fruit ripening using plant bioelectric potential　　　　　　　　　　　　　　　
  長谷川 有貴
  Volume：1, Number：11, First page：1197, Last page：1200, Oct. 2017
  Japanese
  ISSN：2432-5511, CiNii Articles ID：40021807755, CiNii Books ID：AA12770259
• 無機半導体pn接合を用いたアレイ化電気化学センサの研究—Study on the electrochemical array sensor using pn junctions of the inorganic semiconductor—ケミカルセンサ研究会 ケミカル･バイオセンサとそのプロセス技術および一般
  小杉 恵太; 長谷川 有貴; 内田 秀和
  Volume：2017, Number：1-11, First page：1, Last page：4, Jun. 2017
  Japanese
  CiNii Articles ID：40021256266
• 植物生体電位を用いた収穫後果実の熟度評価—Ripeness evaluation of post harvest fruits using plant bioelectric potential
  石田 亮太; 長谷川 有貴; 内田 秀和; 庵原 啓司; 小泉 大輔
  Volume：34, First page：6p, 2017
  Japanese
  CiNii Articles ID：40021393729
• 金属酸化膜を用いた微小電気化学センサ用イオンブロッキング電極の研究—Study on the ion blocking electrode using metal oxide film for micro electrochemical sensor
  泉山 朋也; 長谷川 有貴; 内田 秀和
  Volume：34, First page：1, Last page：5, 2017
  Japanese
  CiNii Articles ID：40021394760
• 無機半導体pn接合を用いたアレイ化二次元電気化学センサの研究—Study on the electrochemical array sensor using pn junctions of the inorganic semiconductor
  小杉 恵太; 長谷川 有貴; 内田 秀和
  Volume：34, First page：4p, 2017
  Japanese
  CiNii Articles ID：40021393701
• 金属錯体を用いたLB膜味覚センサによるビールの劣化度評価—Degradation degree evaluation of beer by taste sensor with LB film using metal complex
  矢澤 正好; 長谷川 有貴; 内田 秀和
  Volume：34, First page：1, Last page：4, 2017
  Japanese
  CiNii Articles ID：40021395476
• 植物生体電位による栽培環境制御に向けたリアルタイム生理活性評価—In situ evaluation of physiological activity for cultivation environmental control by plant bioelectric potential
  室橋 郁也; 長谷川 有貴; 内田 秀和
  Volume：34, First page：1, Last page：6, 2017
  Japanese
  CiNii Articles ID：40021397857
• Study of Screening Technique using a LAAS Microarray　　　　　　　　　　　　　　　
  Tsukada Takahito; Hasegawa Yuki; Uchida Hidekazu
  IEEJ Transactions on Sensors and Micromachines, Volume：137, Number：9, First page：272, Last page：277, 2017
  We have been studied the light addressable amperometric sensor (LAAS) that enables two dimensional chemical imaging. In this study we report a prototype of the LAAS microarray by attaching a well plate on the LAAS device. The LAAS microarray performs individual measurements by selecting each well using addressing light without discrete wirings.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.137.272
  DOI ID：10.1541/ieejsmas.137.272, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：130006038617, CiNii Books ID：AN1052634X
• 植物生体電位を用いた栽培支援システムの開発—Development of cultivation support system using plant bioelectric potential　　　　　　　　　　　　　　　
  長谷川 有貴
  Volume：1, Number：1, First page：72, Last page：75, Jan. 2017
  Japanese
  ISSN：2432-5511, CiNii Articles ID：40021807067, CiNii Books ID：AA12770259
• ニューラルネットワークによる植物生体電位を用いた光合成速度推定の精度改善—Accuracy improvement of photosynthetic rate estimation using plant biological potential by neural network
  安藤 毅; 長谷川 有貴; 五十嵐 洋; 篠田 宏之; 六倉 信喜
  Volume：33, First page：1, Last page：4, Oct. 2016
  Japanese
  CiNii Articles ID：40021215824
• 画像処理による植物種判別のための気孔位置検出手法の検討—Investigation of Stomata Position Detection Method for Plant Species Determination by Image Processing
  玉村 将大; 内田 秀和; 長谷川 有貴
  Volume：33, First page：1, Last page：5, Oct. 2016
  Japanese
  CiNii Articles ID：40021217313
• 微小セル型アンペロメトリック型酵素センサの研究—Study of the micro-cell type amperometric enzyme sensor
  磯野 友宏; 長谷川 有貴; 内田 秀和
  Volume：33, First page：1, Last page：6, Oct. 2016
  Japanese
  CiNii Articles ID：40021215113
• 無機膜味覚センサによる温飲料評価方法の検討—Study on Hot Drink Evaluation Method by Inorganic Taste Sensor
  田村 陽佑; 長谷川 有貴; 内田 秀和
  Volume：33, First page：1, Last page：5, Oct. 2016
  Japanese
  CiNii Articles ID：40021216996
• LAASマイクロアレイを用いたスクリーニング技術の研究—Study of screening technique using a LAAS microarray
  塚田 貴一; 長谷川 有貴; 内田 秀和
  Volume：33, First page：1, Last page：5, Oct. 2016
  Japanese
  CiNii Articles ID：40021215105
• 二次元電気化学測定システムによる酵素固定化マイクロビーズ測定の研究—Study of enzyme immobilized microbeads measurement by two-dimensional electrochemical measurement system—ケミカルセンサ研究会 ケミカル・バイオセンサとそのプロセス技術および一般
  下山 千紘; 長谷川 有貴; 内田 秀和
  Volume：2016, Number：18-31, First page：53, Last page：57, Jun. 2016
  Japanese
  CiNii Articles ID：40020910072
• 有機ヘテロ接合型二次元電気化学センサによる酸化電流測定の研究—Study of measurement of the oxidation current by two-dimensional electrochemical sensor device using organic heterojunction—ケミカルセンサ研究会 ケミカル・バイオセンサとそのプロセス技術および一般
  尾崎 拓真; 長谷川 有貴; 内田 秀和
  Volume：2016, Number：18-31, First page：59, Last page：63, Jun. 2016
  Japanese
  CiNii Articles ID：40020910080
• デンキ ギジュツシ ケンキュウカイ デンキ ガッカイ ケンショウ 「 デ ンキ ノ イシズエ 」 オヨビ デンキ ギジュツシ イッパン　　　　　　　　　　　　　　　
  鈴木 浩; 長谷川 有貴
  Volume：2016, Number：1-9, First page：1, Last page：6, 10 Mar. 2016
  Japanese
• 植物生体電位による植物育成光源の自動制御—Automatic Control of Plant Growing Light Source Using Plant Bioelectric Potential Response
  長谷川 有貴; 星野 龍一; 高岡 明弘; 内田 秀和
  Volume：32, First page：1, Last page：4, Oct. 2015
  Japanese
  CiNii Articles ID：40020854074
• 無機半導体を用いた二次元アレイ電気化学センサデバイスの研究—Study of two-dimensional array electrochemical sensor device using an inorganic semiconductor
  関戸 秀隆; 長谷川 有貴; 内田 秀和
  Volume：32, First page：1, Last page：6, Oct. 2015
  Japanese
  CiNii Articles ID：40020854054
• 高速な点滅光照射に対する植物生体電位応答の解析—Analyzing Bioelectric Potential Response of Plant to High Frequency Blinking Illumination
  安藤 毅; 長谷川 有貴
  Volume：32, First page：1, Last page：5, Oct. 2015
  Japanese
  CiNii Articles ID：40020856344
• イオンブロッキング膜を用いた酵素センサによる呼気測定に関する研究—Study on expiration measurement by the enzyme electrode using the ion blocking film
  金子 岳洋; 長谷川 有貴; 内田 秀和
  Volume：31, First page：5p, Oct. 2014
  Japanese
  CiNii Articles ID：40020267279
• 点滅光に対する植物生体電位応答の周波数特性と光合成活性の関係—Relationship between Photosynthetic Activity and Frequency Characteristics of Plant Bioelectric Potential Response to Blinking Illumination
  安藤 毅; 長谷川 有貴; 金杉 昭徳
  Volume：31, First page：1, Last page：5, Oct. 2014
  Japanese
  CiNii Articles ID：40020267298
• 中等教育機関における電気啓発書のニーズ調査—A study of the needs to electrical education booklets at secondary education institution—教育フロンティア研究会 技術者倫理と教育一般　　　　　　　　　　　　　　　
  長谷川 有貴; 大来 雄二
  Volume：2013, Number：25-38, First page：45, Last page：49, Dec. 2013
  Japanese
  CiNii Articles ID：40019934378, CiNii Books ID：AA11753039
• カーブフィッティングを用いた光に対する植物生体電位応答の解析—Analysis of Plant Bioelectric Potential Response to Illumination by Curve Fitting
  安藤 毅; 金杉 昭徳; 長谷川 有貴
  Volume：30, First page：1, Last page：6, Nov. 2013
  Japanese
  CiNii Articles ID：40020163329
• Study on the high resolution frequency counter for QCM　　　　　　　　　　　　　　　
  SHIGENAGA Kazuki; HASEGAWA Yuki; UCHIDA Hidekazu
  Volume：2013, Number：1, First page：53, Last page：57, 08 Aug. 2013
  Japanese
  CiNii Articles ID：10031193500, CiNii Books ID：AA1146975X
• Open the Way to the Future from “One Step on Electro-Technology”　　　　　　　　　　　　　　　
  HASEGAWA Yuki; KATSUKAWA Koichi
  The Journal of The Institute of Electrical Engineers of Japan, Volume：133, Number：11, First page：738, Last page：741, 2013
  This article has no abstract.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejjournal.133.738
  DOI ID：10.1541/ieejjournal.133.738, ISSN：1340-5551, eISSN：1881-4190, CiNii Articles ID：130003384157
• Study on the fabrication method of a film of two-dimensional chemical sensor using a photoconductive polymer film　　　　　　　　　　　　　　　
  ARAI Hideki; AIDA Akihide; HASEGAWA Yuki; UCHIDA Hidekazu
  Volume：2012, Number：1, First page：5, Last page：9, 11 Jun. 2012
  Japanese
  CiNii Articles ID：10030776331, CiNii Books ID：AA1146975X
• Study of the measurement technique of the amperometric two-dimensional chemical sensor using photoconductive organic thin film　　　　　　　　　　　　　　　
  GOTO Daisuke; ARAI Hideki; HASEGAWA Yuki; UCHIDA Hidekazu
  Volume：2012, Number：1, First page：11, Last page：15, 11 Jun. 2012
  Japanese
  CiNii Articles ID：10030776345, CiNii Books ID：AA1146975X
• Study of the amperometric enzyme sensor for exhalation gas measurement　　　　　　　　　　　　　　　
  AIDA Akihide; HASEGAWA Yuki; UCHIDA Hidekazu
  Volume：2012, Number：1, First page：75, Last page：78, 11 Jun. 2012
  Japanese
  CiNii Articles ID：10030776462, CiNii Books ID：AA1146975X
• 招待講演 植物生体電位による光合成活性評価—Evaluation of Photosynthesis Activity using Bioelectric Potential of Plant—有機エレクトロニクス　　　　　　　　　　　　　　　
  長谷川 有貴; 安藤 毅
  Volume：111, Number：369, First page：17, Last page：21, 21 Dec. 2011
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110009466887, CiNii Books ID：AA1123312X
• Study of Plant Bioelectric Potential Response in Carbon-free Atmosphere for Evaluating Photosynthesis Activity　　　　　　　　　　　　　　　
  ANDO Ki; HASEGAWA Yuki; YAJI Tamaki; UCHIDA Hidekazu
  Volume：2011, Number：25, First page：17, Last page：22, 10 Sep. 2011
  Japanese
  CiNii Articles ID：10029661976, CiNii Books ID：AA1146975X
• Present state of agri-sensing technology in plant factory　　　　　　　　　　　　　　　
  HASEGAWA Yuki
  Volume：2011, Number：25, First page：13, Last page：16, 10 Sep. 2011
  Japanese
  CiNii Articles ID：10029661960, CiNii Books ID：AA1146975X
• C-13-11 Evaluation of the photosynthetic activity by measuring of plant bioelectric potential　　　　　　　　　　　　　　　
  Akasaka Haruaki; Ando Ki; Hasegawa Yuki; Uchida Hidekazu; Yaji Tamaki
  Proceedings of the Society Conference of IEICE, Volume：2011, Number：2, First page：138, 30 Aug. 2011
  The Institute of Electronics, Information and Communication Engineers, Japanese
  CiNii Articles ID：110008733377, CiNii Books ID：AN10489017
• C-13-8 Two-dimensional chemical sensor, using light addressable organic thin film　　　　　　　　　　　　　　　
  Tokita Akinori; Uchida Hidekazu; Hasegawa Yuki; Yaji Tamaki
  Proceedings of the Society Conference of IEICE, Volume：2011, Number：2, First page：135, 30 Aug. 2011
  The Institute of Electronics, Information and Communication Engineers, Japanese
  CiNii Articles ID：110008733374, CiNii Books ID：AN10489017
• C-13-9 Measurement of High-intensity Sweetener by Taste Sensor with LB films　　　　　　　　　　　　　　　
  Asami Tetsuya; Hasegawa Yuki; Uchida Hidekazu; Yaji Tamaki
  Proceedings of the Society Conference of IEICE, Volume：2011, Number：2, First page：136, 30 Aug. 2011
  The Institute of Electronics, Information and Communication Engineers, Japanese
  CiNii Articles ID：110008733375, CiNii Books ID：AN10489017
• C-13-12 Plant Bioelectric Potential Response to Illumination in N_2 Gas　　　　　　　　　　　　　　　
  Ando Ki; Hasegawa Yuki; Uchida Hidekazu; Yaji Tamaki
  Proceedings of the Society Conference of IEICE, Volume：2011, Number：2, First page：139, 30 Aug. 2011
  The Institute of Electronics, Information and Communication Engineers, Japanese
  CiNii Articles ID：110008733378, CiNii Books ID：AN10489017
• Plant bioelectric potential response and photosynthesis activity　　　　　　　　　　　　　　　
  AKASAKA Haruaki; ANDO Ki; HASEGAWA Yuki; UCHIDA Hidekazu; YAJI Tamaki
  Volume：2011, Number：1, First page：55, Last page：58, 30 Jun. 2011
  Japanese
  CiNii Articles ID：10029072921, CiNii Books ID：AA1146975X
• Development taste sensor with LB film for measurement of sweet taste　　　　　　　　　　　　　　　
  ASAMI Tetsuya; HASEGAWA Yuki; UCHIDA Hidekazu; YAJI Tamaki
  Volume：2011, Number：1, First page：51, Last page：54, 30 Jun. 2011
  Japanese
  CiNii Articles ID：10029072917, CiNii Books ID：AA1146975X
• LB膜味覚センサによる甘味濃度測定—Measurement of sweet taste by taste sensor with LB film—有機エレクトロニクス　　　　　　　　　　　　　　　
  長谷川 有貴; 立野 靖大; 浅見 哲也
  Volume：110, Number：409, First page：33, Last page：36, 07 Feb. 2011
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110008689572, CiNii Books ID：AA1123312X
• 植物の生体電位変動と光合成活性状態との関係—Relationship between plant bioelectric potential variation and photosynthesis activity status—有機エレクトロニクス　　　　　　　　　　　　　　　
  安藤 毅; 長谷川 有貴; 谷治 環
  Volume：110, Number：409, First page：37, Last page：41, 07 Feb. 2011
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110008689573, CiNii Books ID：AA1123312X
• Investigation of photosynthesis activation condition by bioelectric potential of plant　　　　　　　　　　　　　　　
  ANDO Ki; HASEGAWA Yuki; ARAI Masaki; YAJI Tamaki; UCHIDA Hidekazu
  Volume：2010, Number：15, First page：7, Last page：10, 28 Sep. 2010
  Japanese
  CiNii Articles ID：10026684833, CiNii Books ID：AA1146975X
• Study of Two-dimensional Electrochemical Sensor Using Photoconductive film　　　　　　　　　　　　　　　
  UCHIDA Hidekazu; HASEGAWA Yuki; YAJI Tamaki
  Volume：2010, Number：1, First page：63, Last page：68, 17 Jun. 2010
  Japanese
  CiNii Articles ID：10026367438, CiNii Books ID：AA1146975X
• タンパク質の高速分子育種を基盤技術とする先端バイオ産業の創出（都市エリア産学官連携促進事業 埼玉・圏央エリア）　　　　　　　　　　　　　　　
  内田 秀和; 長谷川 有貴
  Volume：2, First page：64, Last page：64, 2010
  type:text
  Japanese
  DOI：https://doi.org/10.24561/00016526
  DOI ID：10.24561/00016526, ISSN：1883-8278, CiNii Articles ID：120006388328
• CS-6-1 Evaluating Photosynthesis Activity by Measuring Bioelectric Potential of Plant　　　　　　　　　　　　　　　
  Ando Ki; Hasegawa Yuki; Uchida Hidekazu
  Proceedings of the Society Conference of IEICE, Volume：2009, Number：2, First page："S, Last page：18"-"S-19", 01 Sep. 2009
  The Institute of Electronics, Information and Communication Engineers, Japanese
  CiNii Articles ID：110007875270, CiNii Books ID：AN10489017
• タンパク質の高速分子育種を基盤技術とする先端バイオ産業の創出（都市エリア産学官連携促進事業 埼玉・圏央エリア）　　　　　　　　　　　　　　　
  内田 秀和; 長谷川 有貴
  Volume：1, First page：66, Last page：66, 2009
  type:text
  Japanese
  DOI：https://doi.org/10.24561/00016478
  DOI ID：10.24561/00016478, ISSN：1883-8278, CiNii Articles ID：120006388281
• 植物の生育環境制御のための生体電位応答の評価　　　　　　　　　　　　　　　
  長谷川有貴
  First page：1, Last page：4, 2009
  CiNii Articles ID：10029661973
• Estimation of commercial beverage using electrical characteristic of inorganic membrane and information processing technique　　　　　　　　　　　　　　　
  KOJIMA Yohichiro; HASEGAWA Yuki; TATENO Yasuhiro; HIROMOTO Yohichi; UCHIDA Hidekazu; KATUBE Teruaki
  Volume：2008, Number：1, First page：27, Last page：30, 12 Jun. 2008
  Japanese
  CiNii Articles ID：10031118087, CiNii Books ID：AA1146975X
• Performance improvement of Hydrogen Gas Sensor using Laser Ablation Method　　　　　　　　　　　　　　　
  HASEGAWA Yuki; KOHSAKA Daiki; KATSUBE Teruaki; MAEKAWA Hitoshi
  Volume：2008, Number：1, First page：13, Last page：16, 12 Jun. 2008
  Japanese
  CiNii Articles ID：10031118084, CiNii Books ID：AA1146975X
• 植物の生体電位応答を用いた種々の光照射に対する生理活動状態の評価　　　　　　　　　　　　　　　
  長谷川 有貴
  Volume：19, Number：2, First page：91, Last page：94, 30 May 2008
  Japanese
  CiNii Articles ID：10021106511, CiNii Books ID：AN10464559
• 光導電性有機薄膜を用いた二次元化学センサ—Two-dimensional chemical sensor, using light addressable organic thin film—有機エレクトロニクス　　　　　　　　　　　　　　　
  高澤 正孝; 萩原 卓也; 長谷川 有貴
  Volume：107, Number：412, First page：25, Last page：29, 11 Jan. 2008
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110006623852, CiNii Books ID：AA1123312X
• 点滅光に対する植物の細胞電位応答と光合成活動の評価—Bioelectric potential responses of plant under blinking light irradiation and evaluation of photosynthetic activity—有機エレクトロニクス　　　　　　　　　　　　　　　
  安藤 毅; 長谷川 有貴; 前川 仁
  Volume：107, Number：412, First page：31, Last page：35, 11 Jan. 2008
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110006623853, CiNii Books ID：AA1123312X
• 植物の生体電位反応を指標とした環境モニタリングシステムの開発　　　　　　　　　　　　　　　
  長谷川 有貴
  Number：6(平成19年度), 2008
• 植物の生体電位反応を指標とした環境モニタリングシステムの開発　　　　　　　　　　　　　　　
  長谷川 有貴
  総合研究機構研究プロジェクト研究成果報告書, Number：6(平成19年度), 2008
• Response Characteristics of Plant Bioelectric Potential under Sunlight　　　　　　　　　　　　　　　
  大藪, 多可志; 新保, 達也; 木村, 春彦; 沢田, 史子; 広林, 茂樹; 長谷川, 有貴; 南戸, 秀仁
  Volume：2007, Number：49, First page：7, Last page：12, 22 Nov. 2007
  application/pdf
  Plant is affected by environmental factors. These are temperature, humidity and light intensity. The light intensity affected strongly to the plant. The plant produces glucose and oxygen with photosynthesis according to the light intensity and its frequency. It also has a capability to purify the airborne chemicals in the atmosphere. In this study, it was examined how the plant is affected by the light intensity using bioelectric potential characteristics of the plant under sunlight. Plant bioelectric potential as a function of light·intensity was measured. The results are shown in this paper as well as other sensor characteristics. The measurement was mainly carried out in outdoor. As the result, the plant bioelectric·potential characteristics in outdoor were largely differed with the ones in indoor. In the analysis, the integrated value of plant bioelectric potential for 1 minute (vm1) was adopted. A high correlation was indicated between the Vm1 and light intensity. The equation for the correlation was indicated as follows: Vm1= a* exp(lm/b)+c where lm means light intensity. In this study, a=127, b=7353 and c=160. 7. The vm1 was also measured under red, green and blue lights. It also becomes obvious that the VmJ is affected by light frequency. In other words, the plant can understand the environmental factors like light intensity and frequency (red, green and blue). Some environmental factors, for example temperature, humidity, atmospheric pressure and wind will be understood by measuring the bioelectric potential. In the future, there is a high possibility that the plant can be deal as an environmental sensor.
  Article
  電気学会研究会資料. CHS, ケミカルセンサ研究会 200(49), 7-12.(2007)
  Japanese
  CiNii Articles ID：10019975771, CiNii Books ID：AA1146975X
• Electrical characteristic of inorganic membrane and estimation of commercial beverage using information processing technique　　　　　　　　　　　　　　　
  KOJIMA Yohichiro; HASEGAWA Yuki; HIROMOTO Yohichi; KATUBE Teruaki
  Volume：2007, Number：49, First page：21, Last page：24, 22 Nov. 2007
  Japanese
  CiNii Articles ID：10019975794, CiNii Books ID：AA1146975X
• Development of fast response and high sensitivity hydrogen gas sensor using laser ablation method　　　　　　　　　　　　　　　
  KOHSAKA Daiki; HASEGAWA Yuki; KATSUBE Teruaki; MAEKAWA Hitoshi
  Volume：2007, Number：49, First page：17, Last page：20, 22 Nov. 2007
  Japanese
  CiNii Articles ID：10019975785, CiNii Books ID：AA1146975X
• Development of an Early Fire Detecting System using QCM Sensors　　　　　　　　　　　　　　　
  HASEGAWA Yuki; TAKADA Kazunari; KATSUBE Teruaki; UCHIDA Hidekazu
  Volume：2007, Number：23, First page：107, Last page：110, 02 Jul. 2007
  Japanese
  CiNii Articles ID：10019579513, CiNii Books ID：AA1146975X
• C-13-3 Bioelectrical Potential Responses of Plant to Periodic Light Illumination　　　　　　　　　　　　　　　
  Ando Ki; Hasegawa Yuki; Katsube Teruaki
  Proceedings of the IEICE General Conference, Volume：2007, Number：2, First page：122, 07 Mar. 2007
  The Institute of Electronics, Information and Communication Engineers, Japanese
  CiNii Articles ID：110006456266, CiNii Books ID：AN10471452
• Evaluation of physiological activities of plant to light irradiation by bioelectrical potential　　　　　　　　　　　　　　　
  HASEGAWA YUKI; ANDO KI; KATSUBE TERUAKI; MAEKAWA HITOSHI
  Proceedings of the Japan Joint Automatic Control Conference, Volume：50, First page：179, Last page：179, 2007
  近年実用化が進められている植物工場は、種々の環境条件を制御することで作物の収量や品質の向上および、より安全・安心な植物の育成が可能となることが期待されている。本研究では、植物の生育条件の中でも最も重要な要素の一つである光条件が植物の生理活動に与える影響を植物の生体電位測定によって評価する。
  The Japan Joint Automatic Control Conference, Japanese
  DOI：https://doi.org/10.11511/jacc.50.0.179.0
  DOI ID：10.11511/jacc.50.0.179.0, CiNii Articles ID：130004600279
• Fabrication and fluorescence measurement system for microarray using Digital Micromirror Device: DMDを用いたマイクロアレイの作成と蛍光計測システム　　　　　　　　　　　　　　　
  サトウ ナオヤ; ウチダ ヒデカズ
  Volume：106, Number：439, First page：1, Last page：6, 18 Dec. 2006
  English
  ISSN：0913-5685, CiNii Articles ID：110006207307, CiNii Books ID：AA1123312X
• Special section on towards the realization of organic molecular electronics - Foreword　　　　　　　　　　　　　　　
  Teruaki Katsube; Mitsuyoshi Onoda; Yuki Hasegawa
  IEICE TRANSACTIONS ON ELECTRONICS, Volume：E89C, Number：12, First page：1725, Last page：1726, Dec. 2006
  IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, English, Others
  DOI：https://doi.org/10.1093/ietele/e89-c.12.1725
  DOI ID：10.1093/ietele/e89-c.12.1725, ISSN：0916-8524, eISSN：1745-1353, Web of Science ID：WOS:000242878300001
• Influence of light quality on photoelectric response of bioelectrical potential of plant　　　　　　　　　　　　　　　
  HASEGAWA Yuki; KATSUBE Teruaki
  Volume：2006, Number：11, First page：21, Last page：24, 16 Nov. 2006
  Japanese
  CiNii Articles ID：10018407009, CiNii Books ID：AA1146975X
• High Temperature and High Sensitive NO_x Gas Sensor with Hetero-Junction Structure using Laser Ablation Method　　　　　　　　　　　　　　　
  Gao Wei; Shi Liqin; Hasegawa Yuki; Katsube Teruaki
  IEEJ Transactions on Sensors and Micromachines, Volume：126, Number：12, First page：643, Last page：648, 2006
  In order to develop a high temperature (200°C∼400°C) and high sensitive NO_x gas sensor, we developed a new structure of SiC-based hetero-junction device Pt/SnO₂/SiC/Ni, Pt/In₂O₃/SiC/Ni and Pt/WO₃/SiC/Ni using a laser ablation method for the preparation of both metal (Pt) electrode and metal-oxide film. It was found that Pt/In₂O₃/SiC/Ni sensor shows higher sensitivity to NO₂ gas compared with the Pt/SnO₂/SiC/Ni and Pt/WO₃/SiC/Ni sensor, whereas the Pt/WO₃/SiC/Ni sensor had better sensitivity to NO gas. These results suggest that selective detection of NO and NO₂ gases may be obtained by choosing different metal oxide films.
  The Institute of Electrical Engineers of Japan, Japanese
  DOI：https://doi.org/10.1541/ieejsmas.126.643
  DOI ID：10.1541/ieejsmas.126.643, ISSN：1341-8939, eISSN：1347-5525, CiNii Articles ID：10018402588, CiNii Books ID：AN1052634X
• 光照射に対する植物の生体電位応答　　　　　　　　　　　　　　　
  長谷川有貴
  Volume：111, 2006
  CiNii Articles ID：20001553128
• イオン電極センサと表面プラズモン共鳴センサを用いた味覚センサ　　　　　　　　　　　　　　　
  廣本 洋一; 長谷川 有貴; 勝部 昭明
  Volume：105, Number：465, First page：19, Last page：22, 13 Dec. 2005
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110003488438, CiNii Books ID：AA1123312X
• 植物細胞電位に見られる光応答特性　　　　　　　　　　　　　　　
  長谷川 有貴; 勝部 昭明
  Volume：105, Number：465, First page：23, Last page：26, 13 Dec. 2005
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110003488439, CiNii Books ID：AA1123312X
• C-13-4 Evaluation of Environment Recognition Ability of Plant by Cellular Potential Analysis　　　　　　　　　　　　　　　
  Hasegawa Yuki; Katsube Teruaki
  Proceedings of the Society Conference of IEICE, Volume：2005, Number：2, First page：126, 07 Sep. 2005
  The Institute of Electronics, Information and Communication Engineers, Japanese
  CiNii Articles ID：110004744813, CiNii Books ID：AN10489017
• Highly Sensitive Formaldehyde Sensor Fabricated With R.F. Induction Plasma Deposition Method: R.F.プラズマ溶射による高感度ホルムアルデヒドセンサの開発
  Volume：39, First page：37, Last page：39, Apr. 2005
  English
  CiNii Articles ID：40006743258
• C-13-6 Bioelectrical Potential Responses of Plant for Light Illumination and Pollutant gas　　　　　　　　　　　　　　　
  Hasegawa Yuki; Katsube Teruaki
  Proceedings of the IEICE General Conference, Volume：2005, Number：2, First page：110, 07 Mar. 2005
  The Institute of Electronics, Information and Communication Engineers, Japanese
  CiNii Articles ID：110004740851, CiNii Books ID：AN10471452
• 味覚・匂いセンサによる風味表現のための情報処理　　　　　　　　　　　　　　　
  梅谷 壮一郎; 長谷川 有貴; 勝部 昭明
  Volume：104, Number：483, First page：27, Last page：30, 03 Dec. 2004
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110003301501, CiNii Books ID：AA1123312X
• 薄膜型イオンセンサによる甘味測定　　　　　　　　　　　　　　　
  木藤 了精; 長谷川 有貴; 勝部 昭明
  Volume：104, Number：483, First page：31, Last page：34, 03 Dec. 2004
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110003301502, CiNii Books ID：AA1123312X
• 植物の環境認識能力と生体電位反応　　　　　　　　　　　　　　　
  長谷川 有貴; 勝部 昭明
  Volume：104, Number：483, First page：23, Last page：26, 03 Dec. 2004
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110003301500, CiNii Books ID：AA1123312X
• Analysis of bioelectrical potential when plant purifies air pollution　　　　　　　　　　　　　　　
  Y Hasegawa; S Asada; T Katsube; T Ikeguchi
  IEICE TRANSACTIONS ON ELECTRONICS, Volume：E87C, Number：12, First page：2093, Last page：2098, Dec. 2004
  Some plants have air purification ability. This purification ability of plants is considered a promising method for indoor air purification because of the low cost and high purification performance. Therefore, several studies have been carried out to investigate the relationship between the air purification ability of plants and environmental conditions. Nevertheless, the purification mechanism and process have not been clarified yet. In this paper, we investigated the air purification process in plants by bioelectrical potential analysis using linear and nonlinear analysis methods. First, we showed that two types of plants have a high air purification ability; Schefflera and Boston fern. Next, we measured AC bioelectrical potential during the purifying process of plants for pollutant gas. Then, we evaluated the power spectra of time series data of the bioelectrical potential. We found that the power spectra shifted to a lower level after gas injection over all frequencies. Thus, the higher power spectrum came from possible higher physiological activities of the plant. Finally, we introduced a nonlinear analysis method from the dynamical system theory. We transformed the time series data of the potential to a higher dimensional state space using a delay coordinate, which is often used in the field of nonlinear time series analysis. The results show that the orbits in the reconstructed state space have a large variation in gas injection. These experimental results suggest that the measurement of bioelectrical potential could become a useful method for evaluating the air purification ability of plants.
  IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, English
  ISSN：0916-8524, eISSN：1745-1353, Web of Science ID：WOS:000225776900015
• Highly Sensitive SnO2-based Gas Sensor for Indoor Air Quality Monitoring: 高感度SnO2センサを用いた室内空気モニタリング　　　　　　　　　　　　　　　
  カツベ テルアキ
  Volume：104, Number：300, First page：23, Last page：26, 16 Sep. 2004
  English
  ISSN：0913-5685, CiNii Articles ID：110003300521, CiNii Books ID：AA1123312X
• 統計的仮説検定法を用いた植物生体電位のカオス同定　　　　　　　　　　　　　　　
  長谷川 有貴; 浅田 茂裕; 勝部 昭明
  Volume：104, Number：197, First page：37, Last page：42, 16 Jul. 2004
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110003291439, CiNii Books ID：AA1123312X
• C-13-12 Flavor analysis by using hierarchical neural networks　　　　　　　　　　　　　　　
  Umetani Soichiro; naganuma Hiroshi; Hasegawa Yuki; katsube Teruaki
  Proceedings of the IEICE General Conference, Volume：2004, Number：2, First page：153, 08 Mar. 2004
  The Institute of Electronics, Information and Communication Engineers, Japanese
  CiNii Articles ID：110003263398, CiNii Books ID：AN10471452
• C-13-8 Air Purification Ability of Plant and Alternating Responses of Bioelectrical Potential　　　　　　　　　　　　　　　
  Yamanaka Takahiro; Hasegawa Yuki; Katsube Teruaki; Ikeguchi Tohru
  Proceedings of the IEICE General Conference, Volume：2004, Number：2, First page：149, 08 Mar. 2004
  The Institute of Electronics, Information and Communication Engineers, Japanese
  CiNii Articles ID：110003263394, CiNii Books ID：AN10471452
• 植物の生体電位測定プログラムの開発と教材化　　　　　　　　　　　　　　　
  長谷川 有貴; 長谷川 直美; 三木 綾恵
  Volume：53, Number：1, First page：29, Last page：35, 2004
  Japanese
  ISSN：0387-9313, CiNii Articles ID：40006474840, CiNii Books ID：AN10484363
• Analysis of Bioelectrical Potential When Plant Purifies Air Pollution(Bioelectronic and Sensor)(Recent Progress in Organic Molecular Electronics)　　　　　　　　　　　　　　　
  長谷川 有貴
  IEICE transactions on electronics, Volume：E87-C, Number：12, First page：2093, Last page：2098, 2004
• 植物の生体電位の時系列波形の解析　　　　　　　　　　　　　　　
  長谷川 有貴; 浅田 茂裕; 勝部 昭明
  Volume：103, Number：464, First page：53, Last page：56, 22 Nov. 2003
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110003291352, CiNii Books ID：AA1123312X
• High sensitive taste sensor using integrated thin film ion electrodes　　　　　　　　　　　　　　　
  KIDO Ryosei; ZHOU Rui; HASAGAWA Yuki; KATSUBE Teruaki; SUNG Yul Wan; ITO Yukio
  Proceedings of the Society Conference of IEICE, Volume：2003, Number：2, First page：104, 10 Sep. 2003
  The Institute of Electronics, Information and Communication Engineers, Japanese
  CiNii Articles ID：110003321336, CiNii Books ID：AN10489017
• Frequency Spectral Analysis of Bioelectrical Potential for the Evaluation of Air Pollution Purification Ability of Plant　　　　　　　　　　　　　　　
  Hasegawa Yuki; Asada Shigehiro; Katsube Teruaki
  Proceedings of the Society Conference of IEICE, Volume：2003, Number：2, First page：105, 10 Sep. 2003
  The Institute of Electronics, Information and Communication Engineers, Japanese
  CiNii Articles ID：110003321337, CiNii Books ID：AN10489017
• 植物の空気汚染浄化プロセスと生体電位反応
  長谷川 有貴; 浅田 茂裕; 勝部 昭明
  Volume：37, First page：190, Last page：192, Sep. 2003
  Japanese
  CiNii Articles ID：40006256782
• 薄膜イオン電極を用いた高速・高感度味覚センサ　　　　　　　　　　　　　　　
  周 蕊; 長谷川 有貴; 勝部 昭明
  Volume：103, Number：132, First page：23, Last page：26, 20 Jun. 2003
  Japanese
  ISSN：0913-5685, CiNii Articles ID：110003300351, CiNii Books ID：AA1123312X
• 生体電位測定による植物の空気汚染浄化能力の研究—特集 知的センシング技術と設備管理　　　　　　　　　　　　　　　
  長谷川 有貴; 内田 秀和; 浅田 茂裕
  Volume：14, Number：2, First page：96, Last page：100, Aug. 2002
  Japanese
  ISSN：0915-5023, CiNii Articles ID：10011862360, CiNii Books ID：AN10544501
• 植物の生体電位の視覚教材化　　　　　　　　　　　　　　　
  長谷川 有貴; 杉山 寛子; 新井 夫差子
  Volume：43, Number：1, First page：9, Last page：13, 2001
  Japanese
  ISSN：0286-5580, CiNii Articles ID：10006064539, CiNii Books ID：AN00190195
• 植物の生体電位の測定に関する基礎的研究(2)スギ苗木に対する適用　　　　　　　　　　　　　　　
  長谷川 有貴; 三木 綾恵; 新井 夫差子
  Volume：50, Number：1, First page：73, Last page：77, 2001
  Japanese
  ISSN：0387-9313, CiNii Articles ID：40004094306, CiNii Books ID：AN10484363

• 青果物のおいしさの科学　　　　　　　　　　　　　　　
  監修者:山野 善正,執筆者:長谷川 有貴 他95名
  Nov. 2024
  Total pages：4, 14, 585, 17p
  CiNii Books：http://ci.nii.ac.jp/ncid/BD09410018
  ISBN：9784860439149, CiNii Books ID：BD09410018
• Society5.0における農業・環境センシング最前線 : センシングデータ活用事例と将来展望　　　　　　　　　　　　　　　
  Society5.0における農業および環境センシング技術に関わる調査研究委員会
  Jun. 2023
  Total pages：iv, 248p
  CiNii Books：http://ci.nii.ac.jp/ncid/BD03323679
  ISBN：9784781317380, CiNii Books ID：BD03323679
• 暮らしと人を見守る水センシング技術　　　　　　　　　　　　　　　
  暮らしと人を見守る水センシング技術研究調査委員会
  Jun. 2019
  Total pages：iv, 222p
  CiNii Books：http://ci.nii.ac.jp/ncid/BB28738738
  ISBN：9784781314280, CiNii Books ID：BB28738738
• スマートセンシングの基礎と応用　　　　　　　　　　　　　　　
  環境・福祉分野におけるスマートセンシング調査研究委員会
  Oct. 2017
  Total pages：iv, 168p
  CiNii Books：http://ci.nii.ac.jp/ncid/BB2470479X
  ISBN：9784781313108, CiNii Books ID：BB2470479X
• 環境と福祉を支えるスマートセンシング　　　　　　　　　　　　　　　
  環境・福祉分野におけるスマートセンシング調査研究委員会
  Jun. 2016
  Total pages：v, 206p
  CiNii Books：http://ci.nii.ac.jp/ncid/BB21858265
  ISBN：9784781311654, CiNii Books ID：BB21858265
• 食の安全・安心とセンシング : 放射能問題から植物工場まで　　　　　　　　　　　　　　　
  食の安全・安心と健康に関わるセンシング調査研究委員会; 大藪, 多可志; 野田, 和俊; 長谷川, 有貴
  Oct. 2012
  Total pages：viii, 195p
  CiNii Books：http://ci.nii.ac.jp/ncid/BB10421651
  ISBN：9784320061743, CiNii Books ID：BB10421651
• 植物生体電位とコミュニケーション　　　　　　　　　　　　　　　
  大藪, 多可志; 勝部, 昭明
  Apr. 2009
  Total pages：vii, 156p
  CiNii Books：http://ci.nii.ac.jp/ncid/BA89503515
  ISBN：9784303710323, CiNii Books ID：BA89503515

• Bioelectric Potential Measurement for Optimizing Plant Cultivation Environment.　　　　　　　　　　　　　　　
  Yuki Hasegawa; Masashi Sataka
  IEEE 8th Global Conference on Consumer Electronics(GCCE), 2019, IEEE
  2019 - 2019
• LB Film Taste Sensor Using Metal Complex for Evaluating Degradation Degree of Beer.　　　　　　　　　　　　　　　
  Yuki Hasegawa; Masayoshi Yazawa; Hidekazu Uchida
  IEEE 7th Global Conference on Consumer Electronics(GCCE), 2018, IEEE
  2018 - 2018
• Ethylene gas sensor for evaluating postharvest ripening of fruit.　　　　　　　　　　　　　　　
  Yuki Hasegawa; Anita Lloyd Spetz; Donatella Puglisi
  IEEE 6th Global Conference on Consumer Electronics(GCCE), 2017, IEEE
  2017 - 2017

• Present
• Present

• 単分子多反応検出モデルに基づく高感度匂いセンサの研究　　　　　　　　　　　　　　　
  01 Apr. 2021 - 31 Mar. 2026
  Grant amount(Total)：17810000, Direct funding：13700000, Indirect funding：4110000
  Grant number：21H01334
• Development of environmental management and control in plant factory using plant bioelectric potential response (Fostering Joint International Research)　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Fund for the Promotion of Joint International Research (Fostering Joint International Research), 2016 - 2018
  Hasegawa Yuki; Spetz Anita Lloyd; Puglisi Donatella, Saitama University
  Grant amount(Total)：11830000, Direct funding：9100000, Indirect funding：2730000
  We have aimed to develop a cultivation environment management and control system for plant growing at cultivation facilities such as plant factory. Therefore, we developed and evaluated gas sensors for measuring cultivation environment atmosphere gases and bioelectric potential responses of crops and fruits were measured. In our experiment, we observed that our developed sensor for ethylene gas, which is one of the plant hormones to effect to plant growth and mature, has high sensitivity for ethylene under optimal conditions of electrode material of SiC-FET and operating temperature. We also measured the bioelectrical potential responses and indicated that the measurement will become a useful method for evaluating maturity of post-harvest fruits.
  In addition, we have discussed with collaborate researchers for practical use of results by our research and interviewed with several companies in Sweden and Japan to strength our system that contributes to the future development.
  Grant number：15KK0228
• Development of environment control system for plant factory using plant bioelectric potential response　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (A), 01 Apr. 2012 - 31 Mar. 2016
  HASEGAWA Yuki, Saitama University
  Grant amount(Total)：14040000, Direct funding：10800000, Indirect funding：3240000
  The plant bioelectric potential responses are correlated with the physiological activity. Thus, we considered that the cultivation environment operating system will be improved by using the bioelectric potential response as an evaluation index. In this study, we aimed to develop the cultivation environment control system using plant bioelectric potential.
  At first, we observed the bioelectric potential response when single wavelength and plural wavelengths were irradiated on the plant. These results showed that the difference in potential response and photosynthetic rate depended on the light intensity rate of plural wavelengths.
  Second, we developed the light intensity control system using plant bioelectric potential. Our developed system can operate correctly depending on the feedback signal made from the plant bioelectric potential. We suggested that the system contribute to the improvement of the cultivation environment control system and the energy saving effect.
  Grant number：24686049
• 植物インピーダンスの精密測定とその応用に関する研究　　　　　　　　　　　　　　　
  2011 - 2012
  Grant amount(Total)：5330000, Direct funding：4100000, Indirect funding：1230000
  Grant number：23560500
• Developing Monitoring System for Plant Physiological Activity in plant factory　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), 2008 - 2009
  HASEGAWA Yuki, Saitama University
  Grant amount(Total)：4160000, Direct funding：3200000, Indirect funding：960000
  Plant factory which make artificial condition for efficient cultivation become practical use. Monitoring plant activity is necessary in order to detect more effective cultural conditions. Especially, the light irradiation condition is the most important factor for plant growth. In this study, we measured the bioelectric potential and CO2 consumption of plants under various types of the irradiation. This result showed that the bioelectric potential responses under the blinking irradiation have various behaviors and intensity of the response related to photosynthetic rate. We conclude that photosynthetic reaction under the blinking irradiation can be evaluated by measurement of the bioelectric potential. And we also suggested that the bioelectric potential measurement become useful method for agro-environment control by plant in plant factories.
  Grant number：20760257
• 植物による空気汚染浄化システムの開発に向けた生体電位反応の解析　　　　　　　　　　　　　　　
  2004 - 2005
  Grant amount(Total)：3500000, Direct funding：3500000
  Grant number：16760318