Updated on 2024/07/16

写真a

 
SUGAWARA Akira
 
Organization
Academic Assembly Institute of Science and Technology JOUHOU DENSHI KOUGAKU KEIRETU Associate Professor
Graduate School of Science and Technology Electrical and Information Engineering Associate Professor
Faculty of Engineering Department of Engineering Associate Professor
Title
Associate Professor
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Degree

  • 博士(工学) ( 1994.3   新潟大学 )

Research Interests

  • 電力工学・電力変換・電気機器・電気エネルギー工学

Research Areas

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Power engineering

  • Nanotechnology/Materials / Energy chemistry

Research History (researchmap)

  • Niigata University   Faculty of Engineering Department of Engineering   Associate Professor

    2017.4

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  • Niigata University   Graduate School of Science and Technology Electrical and Information Engineering   Associate Professor

    2010.4

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  • Massachusetts Institute of Technology   Researcher

    2000.3 - 2001.3

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  • Niigata University   Faculty of Engineering Department of Electrical and Electronic Engineering   Associate Professor

    1998.11 - 2017.3

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  • Niigata University   Faculty of Engineering   Lecturer

    1997.4 - 1998.10

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  • Niigata University   Faculty of Engineering   Assistant

    1994.4 - 1997.3

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Research History

  • Niigata University   Faculty of Engineering Department of Engineering   Associate Professor

    2017.4

  • Niigata University   Graduate School of Science and Technology Electrical and Information Engineering   Associate Professor

    2010.4

  • Niigata University   Graduate School of Science and Technology Electrical and Information Engineering   Associate Professor

    2010.4

  • Niigata University   Faculty of Engineering Department of Electrical and Electronic Engineering   Associate Professor

    1998.11 - 2017.3

  • Niigata University   Faculty of Engineering   Lecturer

    1997.4 - 1998.10

  • Niigata University   Faculty of Engineering   Research Assistant

    1994.4 - 1997.3

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Professional Memberships

  • 日本風力エネルギー学会

    2022.9

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  • プラズマ・核融合学会代議員

    2021.4 - 2023.3

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  • 電気学会東京支部学生委員会委員

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  • 電気学会東京支部新潟支所委員会 委員

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  • 電気学会

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  • プラズマ・核融合学会

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Committee Memberships

  •   聖籠町環境審議会委員 委員長  

    2022.12   

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    Committee type:Municipal

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  •   新潟市ゼロカーボン戦略並びに地球温暖化対策実行計画見直し検討委員会 副委員長  

    2022.10 - 2023.3   

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    Committee type:Municipal

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  •   関川村地球温暖化対策会議 副会長  

    2022.6 - 2024.3   

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    Committee type:Municipal

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  •   津南町脱炭素対策推進協議会 副会長  

    2022.6 - 2023.3   

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    Committee type:Municipal

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  •   上越市新産業創造支援事業審査委員会委員  

    2021.6   

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    Committee type:Municipal

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  •   新潟県小型燃料電池バス導入検討会議 座長  

    2020.6 - 2021.3   

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    Committee type:Municipal

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  •   新潟市地球温暖化対策実行計画策定委員会 副委員長  

    2019.7 - 2020.3   

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    Committee type:Municipal

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  •   新潟県小型燃料電池バス導入検討会議 座長  

    2019.6 - 2020.3   

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    Committee type:Municipal

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  •   新潟市 廃棄物処理の余剰エネルギー活用による地産地消エネルギーモデル・事業化可能性調査委員会 委員長  

    2018.7 - 2019.3   

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    Committee type:Municipal

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  • 新潟県FCV・水素ST普及ビジョン策定委員会   座長  

    2017.6 - 2018.3   

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    Committee type:Municipal

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  • 阿賀町地球温暖化対策実行計画事務事業編の策定にともなう検討委員会   委員長  

    2016.10 - 2017.3   

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    Committee type:Municipal

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  • 糸魚川温泉エネルギー利活用検討委員会   委員  

    2015.6 - 2016.2   

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    Committee type:Other

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  • 新発田市新エネルギー推進協議会   会長  

    2015.3 - 2020.3   

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    Committee type:Other

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  • 日常生活の二酸化炭素排出量調査結果検討委員会   委員  

    2015.2   

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  • 新潟県 平成26年度 農業水利施設を活用した小水力等利用促進検討会   委員  

    2014.9 - 2015.3   

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    Committee type:Other

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  • 温泉発電システム実証試験に係る現地検討委員会   委員  

    2013.8 - 2016.12   

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    Committee type:Other

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  • 農業水利施設を活用した小水力等利用促進検討会   委員  

    2013.7 - 2014.3   

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  • 新潟市地球温暖化対策地域推進協議会   会長  

    2013.4   

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    Committee type:Other

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  • 新潟市スマートエネルギー推進会議   委員  

    2013.3 - 2018.3   

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    Committee type:Other

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  • 新発田市新エネルギービジョン策定委員会   委員長  

    2012.9 - 2013.3   

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    Committee type:Other

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  •   副委員長  

    2010.12 - 2011.2   

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  • 温泉発電システム実証試験に係る検討会   副委員長  

    2010.9 - 2015.3   

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  • 鹿瀬地区地域新エネルギー・省エネルギービジョン策定委員会   委員長  

    2010.9 - 2011.3   

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  •   委員長  

    2010.2 - 2010.8   

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  • 新潟県バイナリー地熱発電導入可能性調査検討委員会   座長代理  

    2009.7 - 2010.3   

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    Committee type:Other

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  •   副委員長  

    2009.7 - 2010.2   

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  •   副委員長  

    2009.2 - 2009.7   

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  • 新潟市地球温暖化対策地域推進計画策定委員会   副委員長  

    2008.7 - 2009.3   

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  • 胎内市省エネルギービジョン重点テーマ策定委員会   委員長  

    2006.12 - 2007.3   

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  • 新潟市地域新エネルギービジョン策定委員会   副委員長  

    2005.8 - 2006.3   

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  • 瀬波温泉未利用エネルギー地域熱供給事業調査策定委員会   委員長  

    2003.9 - 2004.3   

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  • 糸魚川市地域新エネルギービジョン策定委員会   副委員長  

    2002.8 - 2003.3   

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Qualification acquired

  • High School Teacher Specialization License (first and second kind,specialization)

  • Electric Works Specialist (third kind)

 

Papers

  • Stabilization of Wind Farm Output Using Pumped Storage Power Generation by Wind Velocity Prediction of Corrected AR Model Employing 10-minute Averaged Weather Data Reviewed

    Kiyoshi Saito, Akira Sugawara, Yuancheng Li, Isak Lineekela Shawpala, Keizo Kato, Wonsop Kim

    The International Council on Electrical Engineering Conference 2022, 3-0215   2022.6

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  • Experimental Study on Backward Wave Oscillators using Dielectric Discharge Cold Cathodes Reviewed

    Masamichi Sakagami, Akira Sugawara, Takeru Otsuki, Yuta Annaka, Min Thu San, Kiyoyuki Yambe, Kazuo Ogura, Wonsop Kim

    Plasma and Fusion Research   13   3406107   2018.9

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  • Study on Operation of Oversized Backward Wave Oscillator for Broadband Terahertz Radiation Reviewed

    Min Thu San, Kazuo Ogura, Kazuki Kubota, Yuta Annaka, Kiyoyuki Yambe, Akira Sugawara

    IEEE Transactions on Plasma Science   46 ( 3 )   530 - 538   2018.3

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Institute of Electrical and Electronics Engineers Inc.  

    We studied the operation of an oversized backward wave oscillator driven by an electron beam with energy less than 100 keV for terahertz radiation. Cylindrical slow wave structures (SWSs) with rectangular corrugations and annular electron beam are used to generate broadband terahertz radiation. The starting conditions for intense terahertz radiation are examined by varying the beam parameter and the SWS length. Operation frequencies in the range of 0.26-0.34 THz and 0.31-0.39 THz are obtained using two types of SWSs with different corrugation amplitudes. The obtained maximum output power is at the kilowatt level. Characteristics of the beam instabilities in the terahertz-SWSs are examined by comparison between the experimental and numerical results.

    DOI: 10.1109/TPS.2018.2796559

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  • Power stabilization by windfarm applied statistical model and pumped storage generation using Archimedean screw Reviewed

    Hiroya Mitsuyose, Daichi Mizuse, Hiroatsu Fujiwara, Akira Sugawara

    Journal of Mechanics Engineering and Automation   5 ( 12 )   681 - 686   2015.12

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  • Learn-by-Doing Engineering Education Programs Driven by the Engineers of Private Companies and Societies Reviewed

    OKA Tetsuo, HARADA Shuji, TANABE Yuji, NARUMI Takatsune, KANEKO Futao, SUGAWARA Akira, ISHII Nozomu, NISHIMURA Shin-ya, MARUYAMA Takeo, SENGOKU Masakazu, OHKAWA Hideo, TSUBOKAWA Norio

    IEEJ Transactions on Fundamentals and Materials   133 ( 4 )   180 - 185   2013.4

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Institute of Electrical Engineers of Japan  

    The educational program by learn-by-doing engineering has been conducted by the grand in aid of MEXT of Japan. The skills and educational factors lie in the practical R&D driven in the company researches. We have attempted to adopt the before-graduation students to the research collaborations among the company engineers.

    DOI: 10.1541/ieejfms.133.180

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  • Stabilization of large-scale wind power generation by combination of pumped storage generation with archimedean screw Reviewed

    Soichiro Uehara, Katsutoshi Nishijima, Masaki Mitobe, Ma Jinghao, Zhai Yazhou, Gon Shaoyan, Akira Sugawara

    Applied Mechanics and Materials   261-262   50 - 55   2013

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    Language:English   Publishing type:Research paper (international conference proceedings)  

    Electric power storage facilities for stabilization of the voltage and the frequency are necessary to interconnect wind power generations with power systems. However, conventional pumped storage generation systems can't combine with wind power generations because these can't work intermittently. Therefore we consider a new system featuring a pumped storage generation with the Archimedean screw. The Archimedean screw can hold water without electricity supplied, and can continue pumping while it is powered on. Therefore, the Archimedean screw enables the combination of the pumped storage generation and wind power generation. In this study, simulation has been done to examine the feasibility. © (2013) Trans Tech Publications, Switzerland.

    DOI: 10.4028/www.scientific.net/AMM.260-261.50

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  • Comparison of Archimedean screw and normal pump in pumped storage generation combined with wind power generation Reviewed

    Zhai Yazhou, Ma Jinghao, Masaki Mitobe, Soichiro Uehara, Gon Shaoyan, Akira Sugawara

    ADVANCES IN ENERGY SCIENCE AND TECHNOLOGY, PTS 1-4   291-294   439 - 444   2013

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:TRANS TECH PUBLICATIONS LTD  

    Renewable energy resources such as wind energy have a disadvantage that the quality of output power is lower than that of fossil fuel resources. To solve this problem, pumped storage power system with Archimedean screw is designed. The structure and principle of operation are introduced and the advantages and disadvantages are discussed according to the theory and the simulation. In this paper, comparison has been done by collecting and analyzing the data and simulated the system on different condition to show the differences of the two types of pumps working on the pumped storage system.

    DOI: 10.4028/www.scientific.net/AMM.291-294.439

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  • Direct current interruption on small AC relay using IGBT commutation circuit with surge protection element Reviewed

    Akira Sugawara, Tatsuya Goso, Teppei Sato, Syuji Tada, Kenji Tanabe

    2013 2nd International Conference on Electric Power Equipment - Switching Technology, ICEPE-ST 2013   2013

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:IEEE Computer Society  

    Relay is a switch to break or to connect an electric circuit by an electromagnetic force. When a direct current is interrupted, an arc occurs between the relay contacts. And the relay may be destroyed by the damage of burning and/or melting. One method of the direct current interruption is commutation. A bypass circuit (commutation circuit) is constituted by connecting a commutation element to the relay contacts in parallel. The arc would not occur by diverting the circuit current to the commutation circuit when the contacts are interrupted. And then, the circuit current would decrease with the increasing of the resistance value of the commutation element by time. Finally, when another relay is opened, the circuit completely turns off without arcs. In this study, two cheap AC relays (the rating: 125V - 10A) and an IGBT as a commutation element are used. In addition, surge protection properties are measured when the circuit has an inductive load. As a result, the circuit current of DC 100V - 10A was interrupted with controlling surge voltage successfully. © 2013 IEEE.

    DOI: 10.1109/ICEPE-ST.2013.6804365

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  • Mesurement on electron emission property of beam diode to wide-band pulse surface wave oscillator

    Record of Joint Conference of Electrical and Electronics Engineers in Kyushu   2013   397 - 397   2013

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    Publisher:Committee of Joint Conference of Electrical, Electronics and Information Engineers in Kyushu  

    DOI: 10.11527/jceeek.2013.0_397

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  • Experimental Study on Weakly Relativistic Oversized Backward Wave Oscillator with Coaxial Rectangular Corrugations Reviewed

    Masatoh Takahashi, Kazuo Ogura, Hiroyuki Yoshimura, Hiroshi Iiduka, Akira Sugawara, Kiyoyuki Yambe, Won-Sop Kim

    JOURNAL OF THE KOREAN PHYSICAL SOCIETY   59 ( 6 )   3573 - 3577   2011.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:KOREAN PHYSICAL SOC  

    Experimental studies of coaxial oversized backward wave oscillators (BWOs) are presented. The beam voltage is weakly relativistic, less than 100 kV. The slow-wave structure (SWS) consists of a rectangularly corrugated oversized hollow waveguide and rectangularly corrugated inner conductor and has a target operating frequency due to Cherenkov interaction is in the K-band. The coaxial SINS can have two surface waves caused by the inner and the outer corrugations. The oversized BWO operations under the influences of two surface waves are examined. The oscillation start voltage is decreased by introducing a rectangularly corrugated inner conductor, The output. power is increased greatly as compared with those without; the corrugated inner conductor. The inner corrugation improves the oversized BWO operation.

    DOI: 10.3938/jkps.59.3573

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  • Power stabilization of large-scale wind power generation by pumped-up hydro power generation with Archimedean screw Reviewed

    A. Sugawara, K. Nishijima, M. Mitobe, S. Uehara

    Clean Technology 2011, Renewable Energy Technologies   WE8.853   2011.6

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  • Examination of Opening Detection Feature Reviewed

    G. Sugai, A. Sugawara, T. Sato, K. Tanabe, M. Takada

    3rd Euro-Asian Pulsed Power Conference and 18th International Conference on High-Power Beams   PS1-28   2010.10

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  • Arc Extinguishing Characteristics by Self-Generation Magnetic Field on Triggered Vacuum Gap with Dual Trigger Electrodes Reviewed

    H. Kobayashi, A. Sugawara, Y. Ono, R. Kobayashi, K. Yambe, K. Ogura

    3rd Euro-Asian Pulsed Power Conference and 18th International Conference on High-Power Beams   PS1-27   2010.10

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  • Present Status of Learn-by-Doing Engineering Education Programs Driven by Private Companies and Societies Outside University Reviewed

    OKA Tetsuo, HARADA Shuji, TANABE Yuji, KANEKO Futao, SUGAWARA Akira, SATO Takashi, ISHII Nozomu, MARUYAMA Takeo, IMAIZUMI Hiroshi, NISHIMURA Shin-ya, SENGOKU Masakazu, OHKAWA Hideo

    The Papers of Technical Meeting on Frontiers in Education, IEE Japan   2010 ( 23 )   39 - 42   2010.9

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    Language:Japanese   Publisher:電気学会  

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  • Experimental Study on Performance of Slow Cyclotron Maser in Weakly Relativistic Region Reviewed

    K. Bansho, K. Ogura, H. Oe, Y. Kazahari, H. Iizuka, A. Sugawara, T. Shimozuma, S. Kobayashi, K. Okada

    Journal of Plasma and Fusion Research   5   S1049-1 - S1049-6   2010.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Plasma Science and Nuclear Fusion Research  

    Studies of slow cyclotron maser operation of a slow-wave device are presented. The beam voltage is weakly relativistic, less than 100 kV. The slow-wave structure is a periodically corrugated oversized waveguide for K-band operation. When using rectangular corrugation having a relatively small ratio of corrugation width to periodic length of about 20 %, the dispersion curve near the upper cut-off becomes flat and second harmonic slow cyclotron maser operation is observed in the low-energy region near 30 kV. Another type of combined resonance of Cherenkov and slow cyclotron interaction is also demonstrated in which an absolute instability is driven by the slow cyclotron interaction. By using sinusoidal corrugation and rectangular corrugation having a 50 % ratio of corrugation width to periodic length, amplification effects due to the fundamental and second harmonic slow cyclotron interactions are observed.

    DOI: 10.1585/pfr.5.S1049

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00363491071?from=CiNii

  • Experimental Study of Oversized Backward Wave Oscillator with Coaxial Slow-Wave Structure Reviewed

    H. Yoshimura, K. Ogura, K. Bansho, H. Iiduka, M. Takahashi, A. Sugawara

    Journal of Plasma and Fusion Research   5   S2093-1 - S2093-4   2010.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Plasma Science and Nuclear Fusion Research  

    Studies of coaxial oversized backward wave oscillators (BWOs) are reported. The beam voltage is weakly relativistic (less than 100 kV). The slow-wave structure consists of a periodically corrugated oversized waveguide and periodically corrugated inner conductor, whose target operating frequency due to Cherenkov interaction is in the K-band. A starting energy exists for the coaxial oversized BWO as it does for a hollow oversized BWO. The coaxial slow-wave structure has two surface wave modes caused by the inner and outer corrugations. Operation based on these surface modes can be controlled by the beam diameter. The phase difference between the inner and outer corrugations has little effect on operation of the oversized BWO.

    DOI: 10.1585/pfr.5.S2093

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00368733091?from=CiNii

  • Formation of repetition pulse current using triggered vacuum gap Reviewed

    Takanobu Ikeura, Akira Sugawara, Yasuyoshi Ono, Atsushi Yamaguchi, Kazuo Ogura, Won-Sop Kim

    International Symposium on Fusion Tech   P59   2009.1

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  • Project for development of air cooling system using vacuum-cooled water refrigerant Reviewed

    A. Sugawara, S. Yamazaki, T. Sano, K. Kawasaki, K. Moroga

    International Symposium on Fusion Tech   EEA1-3   2009.1

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  • Experimental Study on Disk Type Cold Cathode in Weakly Relativistic Energy Region Reviewed

    H. Oe, K. Ogura, Y. Kazahari, K. Bansho, H. Iizuka, A. Sugawara, W. S. Kim

    Journal of Plasma and Fusion Research   8   1477 - 1482   2009.1

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  • Research for Air Cooling System Using Vacuum-cooled Water Refrigerant Reviewed

    Akira Sugawara, Satoru Nakamikawa, Masaya Kageyama, Satoshi Yamazaki, Naoto Abe, Kazumasa Kawasaki, Koji Matsubara

    Journal of Environment and Engineering   3 ( 1 )   135 - 145   2008.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Mechanical Engineers  

    An air-cooling system of a small capacity of several kilo-watts using only water refrigerant as a non-CFCs (Chlorofluorocarbon) technology is examined. The experimental device consists of two stages. The first stage is composed of a vacuum pump and a vacuum chamber of about 60 L in volume. The second stage has two heat exchangers (the exchanger located outside the vacuum chamber is a dummy cooling load) and a water circulating pump. An air-conditioner indoor unit or a heater is used as a dummy cooling load. The temperature and humidity characteristics are measured at each place. Consequently, the ability to cool the room air is ensured by an air-cooling system using only water refrigerant. A new vacuum pump, that can exhaust a large amount of water vapor, is developed and its properties are measured. It seems that the engine-based vacuum pump performance is sufficient to drive the air cooling system with water refrigerant.

    DOI: 10.1299/jee.3.135

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00312923684?from=CiNii

  • Operation Characteristics of Microwave Sources Based on Slow-Wave Interaction in Rectangular Corrugation Reviewed

    Y. Takamura, Y. Kazahari, H. Oe, K. Ogura, A. Sugawara, M. Hirata

    Journal of Plasma and Fusion Research   3   S1078-1 - S1078-5   2008.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Plasma Science and Nuclear Fusion Research  

    Studies on slow-wave devices with a novel disk cathode and two types of rectangular corrugation are reported. The beam voltage is weakly relativistic, which is less than 100 kV. A disk cathode can generate a uniformly distributed annular beam in the weakly relative region. Rectangular corrugation having the ratio of the corrugation width to the periodic length of 50 or 20% is used. Using the former, output powers of about 200 kW are obtained at around 100 kV. For the latter, the effect of slow cyclotron resonance is observed in the low-energy region of around 30 kV. Output powers of slow cyclotron masers are in the range of a few hundred W. The operation mode of a slow cyclotron maser can be controlled between axisymmetric and nonaxisymmetric modes by changing the end condition of rectangular corrugation.

    DOI: 10.1585/pfr.3.S1078

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00350056757?from=CiNii

  • Improved performance of oversized backward wave oscillator driven by weakly relativistic electron beam Reviewed

    S. Aoyama, Y. Miyazawa, K. Ogura, A. Sugawara, M. Hirata

    An International Journal of the American Nuclear Society, Transactions of Fusion Science and Technology   Vol. 51   325 - 327   2007.12

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  • Study on non-Freon air cooling system using water refrigerant Reviewed

    Akira Sugawara, S. Nakamikawa, M. Kageyama, S. Yamazaki, N. Abe, T. Itou, A. Tsurumaki, K. Kawasaki

    Nano Science and Technology Institute   Vol. 4   652 - 655   2007.12

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  • Studies of a Weakly Relativistic Oversized Backward Wave Oscillator with Disk Cathode and Rectangular Corrugation Reviewed

    K. Ogura, Y. Miyazawa, S. Aoyama, Y. Takamura, S. Tamura, A. Sugawara

    The Institute of Electrical Engineers of Japan, Trans. FM   127 ( 11 )   681 - 686   2007.11

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    Studies of an oversized BWO with a novel cathode and a rectangular corrugation are presented. The beam voltage is weakly relativistic, less than 100 kV. We propose to use a disk cathode made of metal only. The disk cathode can generate a uniformly distributed annular electron beam even in the weakly relativistic case. By using the annular electron beam, a weakly relativistic oversized BWO consisting of rectangularly corrugated cylindrical waveguide is demonstrated. The oscillation starting energy is about 60 kV for a 10-period rectangular corrugation. The maximum output power is estimated about 200 kW. The operation mode between axisymmetric and nonaxisymmetric modes can be controlled by changing the end condition of BWO.

    DOI: 10.1541/ieejfms.127.681

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  • Challenge for the New Engineering Education : In the Course of Producing the Graduate with Total Ability for Engineering Reviewed

    MARUYAMA Takeo, TANABE Yuji, SATO Takashi, ISHII Nozomu, IWABE Hiroyasu, ABE Kazuhisa, OKA Tetsuo, SUGAWARA Akira, MIYAJIMA Toshiro, HARADA Shuhji, NISHIMURA Shin-ya, IMAIZUMI Hiroshi, OHKAWA Hideo, SENGOKU Masakazu

    The Papers of Technical Meeting on Frontiers in Education, IEE Japan   2007 ( 13 )   43 - 48   2007.9

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  • Weakly Relativistic K-band Oversized Backward Wave Oscillator with Bragg Reflector at Input End of Slow Wave Structure Reviewed

    K. Ogura, Y. Miyazawa, H. Tanaka, Y. Kiuchi, S. Aoyama, Y. Takamura, S. Tamura, A. Sugawara

    Journal of Plasma and Fusion Research   2   S1041_1 - S1041_4   2007.2

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    We report an oversized K-band backward wave oscillator (BWO) operating above 20 GHz in the weakly relativistic region less than 100 kV. It is very important to prevent microwave from going into the beam diode, since intense microwaves will harmfully affect beam generation. A weakly relativistic oversized BWO is demonstrated using a Bragg reflector at the beam entrance of slow wave structure (SWS). The effect of the Bragg reflector on the BWO operation is examined, by changing the boundary condition at the beam entrance. The Bragg reflector improves the performance of the oversized BWO.

    DOI: 10.1585/pfr.2.S1041

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  • Measurement on Characteristics of Dc Relay with Diverting Circuit Using Two Ptcs Reviewed

    Akira Sugawara, Takao Suda, Tetsuya Sato, Masami Takada

    International Symposium on Fusion Tech   P4-2   2007.1

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  • Braking circuit of small wind turbine using NTC thermistor under natural wind condition Reviewed

    Y. Matsui, A. Sugawara, S. Sato, T. Takeda, K. Ogura

    2007 INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND DRIVE SYSTEMS, VOLS 1-4   1109 - 1114   2007

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    An electric brake by a three-phase short-circuit system used as the brake equipment of a small wind turbine damages the rotor blades by a rapid revolution stopping of the generator. Moreover, the generators windings may also be damaged by a large short-circuit current. In this paper, the electric braking circuit using the NTC thermistors (negative temperature coefficient resistors) is proposed as a braking system for a cheaper and safe stop of the small wind turbine. The effect under the natural wind condition is examined by the field test using a 500W small wind turbine. AS a result, it is clarified that the generator can decelerates gradually and reduce the burst current by using the braking circuit that composed of the NTC thermisitors.

    DOI: 10.1109/PEDS.2007.4487813

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  • Improved Performance of Oversized Backward Wave Oscillator driven by Weakly Relativistic Electron Beam Reviewed

    S. Aoyama, Y. Miyazawa, K. Ogura, A. Sugawara, M. Hirata

    The 6th International Conference on Open Magnetic Systems for Plasma Confinement   2006.12

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  • Operation Mode of Oversized Backward Wave Oscillator Driven by Weakly Relativistic Electron Beam Reviewed

    K. Ogura, Y. Miyazawa, Y. Kiuchi, S. Aoyama, H. Tanaka, A. Sugawara

    The 3rd Japan-US Symposium on Pulsed Power and Plasma Applications   2006.12

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  • Developing learn-by-doing educational programs through the technical collaborations with private companies Reviewed

    OKA Tetsuo, NISHIMURA Shin-ya, SUGAWARA Akira, NITTA Isami, TANABE Yuji, HAYASHI Toyohiko, ISHII Nozomu, MARUYAMA Takeo, SENGOKU Masakazu

    The Papers of Technical Meeting on Frontiers in Education, IEE Japan   2006 ( 19 )   1 - 4   2006.8

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  • 2-103 Incubation of technical collaborations for developing learn-by-doing educational program through engineering developments Reviewed

    OKA Tetsuo, NISHIMURA Shin-ya, SUGAWARA Akira, NITTA Isami, ISHII Nozomu, MARUYAMA Takeo

    Proceedings of Annual Conference of Japanese Society for Engineering Education   2006 ( 0 )   26 - 27   2006

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  • Research for electric brake using NTC therinistors on micro wind turbine Reviewed

    Akira Sugawara, Kenichi Yamamoto, Takeshi Yoshimi, Shingo Sato, Akira Tsurumaki, Tsuguru Ito

    2006 12TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE, VOLS 1-4   322 - +   2006

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    As a brake system for small wind turbine, mechanical brake and electric brake by the short circuit of 3-phase permanent magnet generator are used. However, an electric braking method may damage the rotor and/or blades by rapid stop of the generator revolution. Moreover, generator winding may also be damaged by large short-circuit current. In this paper, the electric braking method using NTC thermistors (negative temperature coefficient resistors) is proposed as a braking system for a cheaper and safe micro wind turbine.

    DOI: 10.1109/EPEPEMC.2006.283437

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  • Pulse forming technology on crowbar circuit of two parallel-connected triggered vacuum gaps Reviewed

    Akira Sugawara, Motofumi Kimura, Toshifumi Akamatsu, Atsushi Kawakami, Tsuguru Ito

    Proceedings - International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV   1   232 - 235   2006

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    Triggered vacuum gaps (TVGs) can work for large current and high voltage in comparison with semiconductor devices, and have advantageous that are shown good switching characteristics for the wide working voltage range with no adjustment of the gap length. However, a switching time of TVG is strongly influenced by the main voltage polarity. It is called polarity effect. We found that a circuit of two parallel-connected TVGs generated a crowbar current automatically. When two TVGs used as a start switch and a crowbar switch, respectively, characteristics of the crowbar circuit of two parallel-connected TVGs was examined experimentally. In this paper, the pulse forming technology in the crowbar circuit which employing two TVGs is examined experimentally. It is clarified that the time to half value of the crowbar current is controlled by inserting a resistor or a capacitor. And the characteristics of the crowbar current are measured. © 2006 IEEE.

    DOI: 10.1109/DEIV.2006.357275

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  • Improvement of Ability for DC Current Interruption by Diverting Circuit Reviewed

    Akira Sugawara, Tsukasa Furuse, Kouichi Itagaki, Hazairin Samaulah, Masami Takada

    The 11th International Conference EPE-PEMC'2004   A1445   2004.12

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  • Generation of Crowbar Current using the Polarity Effect of the Triggered Vacuum Gaps Reviewed

    Akira Sugawara, Tsuyoshi Tanaka, Kouichi Itagaki, Hayato Abe, Toshihito Zashibo, Hazairin Samaulah, Hiroshi Kitamura

    IEEJ Transactions on Fundamentals and Materials   123 ( 5 )   443 - 448   2003

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    The triggered vacuum gap (TVG) is a closing switch for generating large current pulse and can work in the wide range of voltage for several kV to tens kV. Main electrodes are made of Ag-WC. One of main electrode has a hole for trigger electrode (Mo). The switching time is short, if the polarity of the holed-electrode is negative. It is called polarity effect. We devised a crowbar circuit using the polarity effect of the TVGs. The crowbar current of this circuit was investigated experimentally by varying applied voltage, inductance, capacitance, gap length of TVGs, and trigger current duration. A crowbar current, crest of which is 2.4 kA and 4.9/270µs for example, was observed. The probability of generating the crowbar current was more than about 90 %, in the following condition: the trigger current duration of 6.65 µs and the gap length of 2-6 mm. © 2003, The Institute of Electrical Engineers of Japan. All rights reserved.

    DOI: 10.1541/ieejfms.123.443

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  • Switching Characteristics of UV-Laser Triggered Vacuum Gap with a Metal Target Electrode in the Central Hole of the Cathode Surface Reviewed

    Sugawara Akira, Yanase Takaharu, Itagaki Kouichi, Itou Takayuki, Satou Kazunori, Kitamura Hiroshi

    IEEJ Transactions on Fundamentals and Materials   122 ( 5 )   440 - 445   2002.12

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    The switching characteristics of a UV-laser triggered vacuum gap (ULTVG) with a metal target electrode were measured. The gap spacing of the diameter 85-mm copper electrodes was 1.6-mm. The target electrode of the 7-mm in diameter was placed in the hole (8-mm in diameter) of the cathode. The target electrode materials used in this work were Ti and Al. The target electrode and the cathode were connected electrically. An ultraviolet-pulsed laser beam was perpendicularly focused onto the grounded target electrode. The laser was third harmonic beam of Nd:YAG (wavelength 355-nm, energy 5mJ/pulse, beam diameter 2-mm). The operating voltage range for the target electrode ULTVG enlarged more than 11-21% compared with the copper electrode ULTVG and the switching time, 325 ns at 15 kV, was the same in the case of the copper electrode ULTVG.

    DOI: 10.1541/ieejfms.122.440

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  • Beneficial effect of solid nitrogen on a BSCCO-2223/Ag composite tape subjected to local heating Reviewed

    Akira Sugawara, Hisashi Isogami, Benjamin J Haid, Yukikazu Iwasa

    Physica C: Superconductivity and its Applications   372-376 ( 3 )   1443 - 1446   2002.8

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    This paper presents results of a quench/recovery experiment for a BSCCO-2223/Ag composite tape in the presence or absence of a thin layer of solid nitrogen on each side of the tape. Voltage and temperature data were recorded for a 20-cm long BSCCO-2223/Ag tape operating in the range 20-55 K and subjected to a heat pulse of a 10-600 s duration applied over a short distance at its midpoint. The data clearly show that solid nitrogen is beneficial to the stability of high-temperature superconductors operating in this temperature range and subjected to transient heating disturbances. © 2002 Elsevier Science B.V. All rights reserved.

    DOI: 10.1016/S0921-4534(02)01120-6

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  • Transient electrical and thermal responses of a 2-section BSCCO-2223 coil under overcurrent pulses Reviewed

    Akira Sugawara, Hisashi Isogami, Karl W. Kowallis, Yukikazu Iwasa

    IEEE Transactions on Applied Superconductivity   11 ( 1 )   1848 - 1851   2001.3

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    This paper presents experimental and numerical simulation results of a 2-section coil subjected to overcurrent pulses in the temperature range 20-60 K. The experiment simulates a high-temperature superconducting (HTS) magnet for electric devices such as fault-current limiters, transformers, motors, and power lines under fault-mode overcurrent pulses. Each section of the test coil is layer-wound with Bi-2223/Ag composite tape, 3.5-mm wide and 0.23-mm thick, with the outer section wound directly over the inner section. A pulse current exceeds the critical current of each conductor and may drive each section normal. A constant current that follows the pulse current leaves each section in three possible conditions: completely superconducting, recovering, and quenching. Simulation agrees reasonably well with experiment.

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  • Switching characteristics of vacuum gap switch employing UV-laser triggering Reviewed

    Kazunori Satou, Akira Sugawara, Takayuki Itou, Kouichi Itagaki

    Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)   132 ( 3 )   8 - 13   2000

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    The switching time and arc-ignition probability of a sustained main discharge in a laser trigger vacuum gap were measured. The third harmonic beam of an Nd:YAG pulse laser (wavelength 355 nm, energy 5 mJ/pulse, power density 4×107 W/cm2) was used to trigger the gap. The main electrodes 85 mm in diameter were made of oxygen-free copper. The gap length was 1.6 mm and the experimental chamber was evacuated to about 1.3×104 Pa by a turbo-molecular pump. The UV beam from the laser was focused at normal incidence onto the grounded cathode. The switching time decreased and the arc-ignition probability increased with increasing applied voltage. The switching time was 326 ns at 15 kV with a circuit inductance of 107 μH. Its jitter was 24.8 ns. The advantageous results obtained with the UV beam are compared to the previously reported data on triggered vacuum gaps.

    DOI: 10.1002/1520-6416(200008)132:3<8::AID-EEJ2>3.0.CO;2-7

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  • Switch Characteristics of Parallel Connected Triggerd Vacuum Gaps with Reverse Polarity in Each Gap Reviewed

    ITAGAKI Kouichi, SAMAULAH Hazairin, KOMATSU Takashi, SUGAWARA Akira, KITAMURA Hiroshi

    The Transactions of the Institute of Electrical Engineers of Japan. A   119 ( 4 )   475 - 481   1999.4

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  • Switching Characteristics of Vacuum Gap Switch Employing a UV-Laser Triggering

    SATOU Kazunori, SUGAWARA Akira, ITOU Takayuki, ITAGAKI Kouichi

    The Transactions of the Institute of Electrical Engineers of Japan. A   119 ( 1 )   44 - 48   1999.1

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  • Switching Characteristics of Two Parallel-Connected Triggered Vacuum Gaps Reviewed

    H.Samaulah, K.Itagaki, A.Sugawara, T.Maruyama, H.Kitamura

    T. IEE Japan   117 ( 3 )   346 - 353   1997.3

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  • 抵抗負荷制御による小型風力発電装置の高効率運転 Reviewed

    鵜家 隆, 菅原 晃, 板垣厚一, 喜多村 博, 貝津弘幸

    風力エネルギー   21 ( 1 )   45 - 50   1997.1

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  • Switching characteristics of a triggered vacuum gap employing a trigger electrode in the respective main electrodes Reviewed

    Akira Sugawara, Hazairin Samaulah, Kouichi Itagaki, Hiroshi Kitamura

    Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)   116 ( 6 )   95 - 103   1996

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    Both switching time and minimum firing voltage of a triggered vacuum gap employing a trigger electrode in the cathode and anode (double triggered vacuum gap) were measured. The double triggered vacuum gap was operated below 100 V independent of the high voltage main electrode polarity (positive or negative). This minimum firing voltage was lower than that of the conventional triggered vacuum gap. The switching time is approximately 0.5 μ in the range 3 to 18 kV. The conventional triggered vacuum gap has a trigger electrode that is placed at the center of the grounded main electrode. The polarity of the main electrode affected switching time characteristics. A trigger electrode was added to the high voltage main electrode. The double triggered vacuum gap was only slightly influenced by the polarity of the high voltage main electrode when both main electrodes were triggered at the same time.

    DOI: 10.1002/eej.4391160609

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  • Switching Characteristics of Two Series-Connected Triggered Vacuum Gaps Reviewed

    H.Samaulah, K.Itagaki, H.Kitamura, A.Sugawara

    115 ( 8 )   719 - 725   1995.8

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  • Observation of Localized Density Rises Caused by High-Power Microwaves in a Plasma-Filled Corrugated Wall Waveguide Reviewed

    Sugawara Akira, Naito Yuichi, Ogura Kazuo, Minami Kazuo, Watanabe Tuguhiro

    Journal of plasma and fusion research   69 ( 12 )   1498 - 1506   1993.12

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    Axial density gratings with local rises in a plasma filled corrugated wall waveguide are experimentally found to be created by incident high-power microwaves. The density rises and the maxima of standing waves of the axial RF electric field are observed at the identical axial positions where the radius of the corrugated wall is minimum. A nonlinear plasma model to explain the physical meaning of the observed results is proposed.

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    Other Link: http://dl.ndl.go.jp/info:ndljp/pid/10451599

  • 周期境界をもつ導波管の分散関係の測定 Reviewed

    菅原 晃, 風間 洋, 小出基晴, 菅 良範, 小椋一夫, 南 一男

    電気学会論文誌A   113 ( 1 )   1 - 7   1993.1

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  • ANALYSIS ON FIELD LINES AND POYNTING VECTORS IN CORRUGATED WALL WAVE-GUIDES Reviewed

    K OGURA, K MINAMI, MM ALI, Y KAN, T NOMURA, Y AIBA, A SUGAWARA, T WATANABE

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   61 ( 11 )   3966 - 3976   1992.11

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    Field patterns and Poynting vectors of TM01 mode in sinusoidally corrupted waveguides are analyzed numerically. It is shown that a plasma column new the axis excludes the rf electric field lines towards the peripheral region, resulting in Poynting vectors in the axial direction there. The excitation of TM01 mode in corrugated waveguides is shown to be classified into two cases; surface and the volume waves. A possible physical explanation for the enhanced radiation observed previously from plasma filled backward wave oscillators is tried from the present results.

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  • ABSOLUTE INSTABILITY OF LOW-FREQUENCY ELECTROMAGNETIC-WAVES IN A PLASMA WAVE-GUIDE WITH PERIODIC BOUNDARIES Reviewed

    K OGURA, MM ALI, K MINAMI, S WATANABE, Y KAN, Y AIBA, A SUGAWARA, T WATANABE

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   61 ( 11 )   4022 - 4032   1992.11

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    The linear dispersion relation of low frequency electromagnetic plasma waves in a corrugated plasma waveguide is analyzed successfully for a particular model in which difficulties for satisfying Floquet theorem rigorously are overcome. The resultant absolute instabilities are investigated numerically in some detail.

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  • 周期境界をもつプラズマ導波管中の低周波電磁波の解析 Reviewed

    M.M.Ali, 南 一男, 菅原 晃

    電気学会論文誌A   111 ( 10 )   868 - 872   1991.10

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  • GENERATION OF A STRONGLY COUPLED PLASMA WITH ELECTRON-TEMPERATURE AROUND 4.2-K IN CRYOGENIC HELIUM GASES Reviewed

    K MINAMI, K KATO, A SUGAWARA, T NOMURA

    STRONGLY COUPLED PLASMA PHYSICS /   445 - 448   1990

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Books

  • 安全工学基礎 ―資料と演習―

    木村勇雄, 菅原 晃, 坂本秀一, 上松和義( Role: Joint author)

    2022.11 

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  • 9-217 Active Condition of Practical Engineering Education Program by High Technology Reviewed

    OKA Tetsuo, HARADA Shuji, YAMAUCH Takeshi, NARUMI Takatsune, SUGAWARA Akira, KANEKO Futao

    Proceedings of Annual Conference of Japanese Society for Engineering Education   2013 ( 0 )   486 - 487   2013

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    DOI: 10.20549/jseeja.2013.0_486

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  • 12p-M-4 Measuement of Local Density Rises in a Plasma-Filled Slow Wave Structure

    Sugawara A., Naito Y., Minami K., Ogura K., Ishii K., Watanabe T.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1993 ( 4 )   182 - 182   1993.9

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  • 29p-ZE-2 Measurements of Cavitons in a Plasma Loaded Slow Wave Structure

    Sugawara A., koide M., Naitoh Y., Nakamura Y., Ogura K., Minami K., Ishii K.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   48 ( 4 )   144 - 144   1993.3

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  • 27p-A-5 Measurements of Dispersion Relation of a Waveguide with Periodic Boundaries

    Sugawara A, Koede M, kan Y, Naito Y, Ogura K, Minami K

    1992 ( 4 )   187 - 187   1992.9

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  • 3p-S-10 500keV Linac for Plasma Backward Wave Tube

    Yanagase H., Ogura K., Sugawara A., Ali M.M., Kato K., Minami K.

    1990 ( 4 )   183 - 183   1990.9

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Industrial property rights

  • 過電流保護素子

    山内 健, 菅原 晃, 生駒 忠昭, 若林淳也

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    Application no:特願2019-136534  Date applied:2019.4

    Patent/Registration no:特許第6795826号  Date registered:2022.11 

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  • 点火プラグ

    菅原 晃, 西田 直人, 安川 諒

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    Application no:特願2019-080827  Date applied:2019.4

    Patent/Registration no:特許第7202002号  Date registered:2022.12 

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Research Projects

  • 有機導電材料を利用した過電流保護デバイスの開発

    2021.2 - 2023.12

    菅原 晃, 山内 健, 若林淳也, 中野信男

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  • 有機導電材料を利用した,電力ロスの小さな過電流保護デバイスの試作開発

    2013.11 - 2020.12

    Research category:共同研究

    山内 健, 菅原 晃, 生駒 忠昭, 上野 彰

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  • アルキメデスポンプを用いた揚水発電による大規模風力発電の電力安定化の研究

    2013.4 - 2016.3

    System name:科学研究費助成事業

    Research category:基盤研究(C)

    Awarding organization:日本学術振興会

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  • Study on Broadband Pulsed Surface Wave Oscillator with Double-Corrugation

    Grant number:23340173

    2011.11 - 2014.3

    System name:Grants-in-Aid for Scientific Research

    Research category:Grant-in-Aid for Scientific Research (B)

    Awarding organization:Japan Society for the Promotion of Science

    OGURA Kazuo, SUGAWARA Akira, YAMBE Kiyoyuki

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    Grant amount:\5850000 ( Direct Cost: \4500000 、 Indirect Cost:\1350000 )

    Broadband pulsed surface wave oscillators with slow-wave structure composed of double-corrugation are examined. The dispersion characteristics of surface wave can be controlled by the corrugation parameters. The surface waves in the range from 20GHz to 40GHz are examined numerically and experimentally. Weakly relativistic electron beams are generated by a disk type cold cathode, not by a hot cathode. By injecting the beam into the double-corrugation, an intense surface wave excitation and a frequency tunability of about 20 percent are demonstrated based on the double-corrugation. And high frequency operation based on the higher order modes of double-corrugation are examined numerically and relatively strong radiations of higher order mode are demonstrated experimentally. Moreover, the intense surface wave excitation is extended up to 170GHz-band. The higher order and extended surface wave operations are of considerable interest for an intense broadband terahertz wave source.

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  • 直流リレーの接点容量(主に電圧)拡大に関する共同研究

    2010.7 - 2011.3

    System name:共同研究(国内共同研究)

    Awarding organization:大東通信機株式会社

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  • 直流リレーの接点容量(主に電圧)拡大に関する共同研究

    2009.4 - 2010.3

    System name:共同研究(国内共同研究)

    Awarding organization:大東通信機株式会社

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  • 直流リレーの接点容量(電圧、電流)拡大に関する共同研究

    2008.4 - 2009.3

    System name:共同研究(国内共同研究)

    Awarding organization:大東通信機株式会社

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  • 新潟式ネオドライフラワープロジェクト

    2008.1 - 2008.3

    System name:共同研究(国内共同研究)

    Awarding organization:星野 株式会社

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  • 直流リレーの電流容量増大に関する共同研究

    2007.1 - 2008.3

    System name:共同研究

    Awarding organization:大東通信機株式会社

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    Grant type:Competitive

    Grant amount:\300000

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  • バッテリー再生事業に向けた共同研究

    2006.2 - 2006.3

    System name:共同研究

    Awarding organization:株式会社富岡鉄工所

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    Grant type:Competitive

    Grant amount:\100000

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  • Study on Weakly Relativistic Slow-Wave Devices up to Millimeter Wave Region Based on Surface Wave Excitation with Anomalous Doppler Etffect

    Grant number:17340171

    2005 - 2007

    System name:Grants-in-Aid for Scientific Research

    Research category:Grant-in-Aid for Scientific Research (B)

    Awarding organization:Japan Society for the Promotion of Science

    OGURA Kazuo, SUGAWARA Akira

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    Grant amount:\15040000 ( Direct Cost: \14800000 、 Indirect Cost:\240000 )

    This research project aims at exciting the surface wave of oversized slow-wave structure by weakly relativistic electron beams. In a weakly relativistic region, one of critical problems is the electron beam generation with large currents. With a disk type cold cathode, uniformly distributed annular beams are able to be generated in the weak relativistic region. For the beam recovery port, further examination will be required. By improving the electron beam and the electromagnetic properties of oversized waveguide, radiation powers increase up to about 500kW at the 20GHz band and about 200kW at the 40GHz band. It is demonstrated that axisymmetric and nonaxisymmetric operation modes can be controlled.
    With rectangular corrugations of slow-wave structure, a flat upper cutoff is realized. Cherenkov and slow cyclotron interactions are synchronized in a relatively low energy region. And the surface wave can be excited based on the anomalous Doppler effect. The surface wave excitation and surface mode control are demonstrated in the relatively low energy region with the low magnetic field.
    In order to evaluate the electromagnetic properties of oversized waveguide experimentally, a measurement system using a vector network analyzer is prepared. The dispersion characteristics are estimated, by measuring resonant modes of 20 GHz-band slow-wave structure. Further examinations of millimeter wave excitation antenna will be required.
    In numerical analysis, the problem of numerical divergence is resolved and beam interactions with the surface wave in oversized waveguide become to be analyzed including three-dimensional beam perturbations. The normal modes and their interactions with electron beams are investigated, comparing with the experimental results.
    The surface wave excitation by the anomalous Doppler effect in the weakly relativistic region is an important issue from the viewpoint of plasma waves, waves in flowing plasmas and their applications.

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  • プラズマ後進波発振器におけるマイクロ波出力増大に関する研究

    Grant number:07750311

    1995

    System name:科学研究費助成事業

    Research category:奨励研究(A)

    Awarding organization:日本学術振興会

    菅原 晃

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    Grant amount:\1000000 ( Direct Cost: \1000000 )

    (1)遅波導波管の設計・製作 研究に使用する遅波構造をもつ導波管をアルミニウムを鋳造する方法で製造した。寸法は平均半径5.0,周期長3.2,振幅1.4cmで設計し,±0.5mmの精度で製造された。
    (2)分散関係の測定 小電力のマイクロ波発振器を用い製作された遅波導波管の分散関係をプランジャー法により測定した。TM_<01>モードおよびTM_<02>モードマイクロ波通過域である2.3〜3.3GHz,4.4〜5.8GHzにおいて共振モードが現れ,分散関係を求めることができた。数値計算による理論値と比較して,最大誤差約2%の精度であることを確認した。
    (3)マイクロ伝搬特性の測定 本研究で使用する導波管では,周波数2.7〜3.4GHzにおいてマイクロ波は表面波として伝搬することが知られている。針アンテナと円板アンテナを用いることにより導波管内部での電界分布を変え,透過マイクロ波出力を測定することにより,5π/8〜π共振モードの間で表面波になることを明らかにした。
    本研究の一部の成果については現在投稿準備中である。

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Teaching Experience (researchmap)

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Teaching Experience

  • 電子情報通信実験III

    2023
    Institution name:新潟大学

  • 先端科学技術総論

    2022
    -
    2023.3
    Institution name:新潟大学

  • 電気回路I

    2022
    -
    2023.3
    Institution name:新潟大学

  • 創造研究プロジェクトII

    2021
    -
    2022.9
    Institution name:新潟大学

  • 創造研究プロジェクトI

    2021
    -
    2022.9
    Institution name:新潟大学

  • 自然科学総論III

    2021
    Institution name:新潟大学

  • 創造プロジェクトI

    2021
    Institution name:新潟大学

  • 創造プロジェクトII

    2021
    Institution name:新潟大学

  • 電子情報通信実験I

    2020.10
    Institution name:新潟大学

  • 論文輪講I

    2020
    Institution name:新潟大学

  • 論文輪講II

    2020
    Institution name:新潟大学

  • 電子情報通信設計製図

    2020
    Institution name:新潟大学

  • 安全工学基礎

    2020
    -
    2023.3
    Institution name:新潟大学

  • 電子情報通信実験IIIA

    2020
    -
    2022
    Institution name:新潟大学

  • 電子情報通信実験IIIB

    2020
    -
    2022
    Institution name:新潟大学

  • 工学リテラシー入門(情報電子分野)

    2019
    Institution name:新潟大学

  • 電子情報通信実験IIB

    2019
    Institution name:新潟大学

  • 電子情報通信実験IIA

    2019
    Institution name:新潟大学

  • 電子情報通信実験IA

    2018
    -
    2021
    Institution name:新潟大学

  • 電子情報通信実験IB

    2018
    -
    2021
    Institution name:新潟大学

  • 電子情報通信概論

    2017
    Institution name:新潟大学

  • 総合技術科学演習

    2017
    Institution name:新潟大学

  • 電気電子工学研究発表(外部発表)

    2014
    -
    2015
    Institution name:新潟大学

  • 電気電子工学セミナーⅡ

    2012
    -
    2015
    Institution name:新潟大学

  • 電気電子工学特定研究Ⅱ

    2012
    -
    2015
    Institution name:新潟大学

  • 電気電子工学文献詳読Ⅰ

    2012
    -
    2015
    Institution name:新潟大学

  • 電気電子工学セミナーⅠ

    2012
    -
    2015
    Institution name:新潟大学

  • 電気電子工学研究発表演習(中間発表)

    2012
    -
    2015
    Institution name:新潟大学

  • 電気電子工学文献詳読Ⅱ

    2012
    -
    2015
    Institution name:新潟大学

  • 電気電子工学特定研究Ⅰ

    2012
    -
    2015
    Institution name:新潟大学

  • 電気電子工学研究発表演習(外部発表)

    2012
    -
    2013
    Institution name:新潟大学

  • リサーチキャンプ

    2012
    Institution name:新潟大学

  • 電気回路III

    2010
    Institution name:新潟大学

  • 電気電子設計製図

    2010
    -
    2018
    Institution name:新潟大学

  • 電気電子創造設計

    2010
    -
    2016
    Institution name:新潟大学

  • 卒業研修

    2009
    Institution name:新潟大学

  • 工学リテラシー入門(電気電子工学科)

    2009
    -
    2016
    Institution name:新潟大学

  • 電気電子工学・環境ものづくり

    2009
    -
    2012
    Institution name:新潟大学

  • 電気電子工学基礎実験

    2009
    Institution name:新潟大学

  • スタディスキルズ(電気電子工学)

    2008
    Institution name:新潟大学

  • 卒業研究

    2007
    Institution name:新潟大学

  • 高電圧パルス工学

    2007
    Institution name:新潟大学

  • パワーエレクトロニクス

    2007
    Institution name:新潟大学

  • 高電圧大電流工学特論

    2007
    Institution name:新潟大学

  • 電気回路演習I

    2007
    Institution name:新潟大学

  • 論文輪講

    2007
    -
    2019
    Institution name:新潟大学

  • 電気電子工学実験III

    2007
    -
    2018
    Institution name:新潟大学

  • 電気電子工学実験IV

    2007
    -
    2018
    Institution name:新潟大学

  • 電気回路I

    2007
    -
    2017
    Institution name:新潟大学

  • 電気電子工学実験I

    2007
    -
    2017
    Institution name:新潟大学

  • 電気電子工学実験II

    2007
    -
    2017
    Institution name:新潟大学

  • エレクトロニクス入門

    2007
    -
    2016
    Institution name:新潟大学

  • 高電圧工学

    2007
    -
    2010
    Institution name:新潟大学

  • 電気電子演習

    2007
    -
    2009
    Institution name:新潟大学

  • 卒業基礎研究

    2007
    -
    2008
    Institution name:新潟大学

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