NAMIHIRA Takao

J-GLOBAL         Last updated: Dec 24, 2019 at 23:26
 
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Name
NAMIHIRA Takao
E-mail
namihiracs.kumamoto-u.ac.jp
Affiliation
Kumamoto University
Section
Institute of Pulsed Power Science, , ,Kumamoto University
Job title
Associate Professor
Degree
Master of Engineering(Kumamoto University), Doctor of Engineering(Kumamoto University)

Research Areas

 
 

Academic & Professional Experience

 
1999
 - 
2006
 Research Associate,Faculty of Engineering,Kumamoto University
 
2006
   
 
 Research Associate,
 
2006
 - 
2007
 Associate Professor,
 
2009
 - 
2013
 Associate Professor, ,Bioelectrics Research Center ,Kumamoto University
 
2013
   
 
 Associate Professor, , ,Kumamoto University
 

Education

 
 
 - 
1999
Graduate School, Division of Engineering, Kumamoto University
 
 
 - 
1997
Faculty of Engineering, Kumamoto University
 

Published Papers

 
坂本浩幸, 赤木洋介, 山田一夫, 舘幸男, 福田大祐, 石松宏一, 松田樹也, 齋藤希, 上村実也, 浪平隆男, 重石光弘
日本原子力学会和文論文誌   17(2) 57‐66(J‐STAGE)   2018
WANG Douyan, 浪平隆男
静電気学会誌   41(6) 249‐253   Nov 2017
Ethylene treatment using nanosecond pulsed discharge
2017 IEEE 21ST INTERNATIONAL CONFERENCE ON PULSED POWER (PPC)      2017   [Refereed]
Development of High Voltage IES Pulse Charger Using IGBT
2017 IEEE 21ST INTERNATIONAL CONFERENCE ON PULSED POWER (PPC)      2017   [Refereed]
Kouyama Hikaru, Kibe Taiga, Fujimoto Shota, Namihira Takao, Kobayashi Makiko
JAPANESE JOURNAL OF APPLIED PHYSICS   55(7)    Jul 2016   [Refereed]

Misc

 
Bangfa Peng, Nan Jiang, Xiaomei Yao, Yunxia Ruan, Douyan Wang, Kefeng Shang, Na Lu, Takao Namihira, Jie Li, Yan Wu
Journal of Physics D: Applied Physics   52    Jun 2019
© 2019 IOP Publishing Ltd. Generation and propagation of the primary and secondary streamers, initiated by a positive pulsed surface dielectric barrier discharge under different pulse amplitude and different dielectric permittivity, are studied vi...
Terumasa Ryu, Douyan Wang, Takao Namihira
IEEJ Transactions on Fundamentals and Materials   139 445-452   Jan 2019
© 2019 The Institute of Electrical Engineers of Japan. The environmental improvements by pulsed discharge plasma, a type of non-thermal plasma, have received much attention all over the world. The observation of discharge plasmas is beneficial for...
Y. Nagata, D. Wang, Takao Namihira
International Journal of Plasma Environmental Science and Technology   12 22-29   Jun 2018
© 2018 Institute of Electrostatics. Effects of wire electrode diameter on formation and propagation process of streamer discharge in wire-plate electrode in air at atmospheric pressure were investigated using a high speed gated emICCD camera. Wire...
高橋克幸, 小林昌太, 永田湧成, 武田尚大, 高木浩一, 浪平隆男
電気学会研究会資料   (ED-18-042-048/PPP-18-024-030) 9‐14   May 2018
安東弥香, 田村隆二, WANG Douyan, 浪平隆男
電気学会全国大会講演論文集(CD-ROM)   2018 ROMBUNNO.1‐190   Mar 2018
勝木淳, 浪平隆男, WANG Douyang, 矢野憲一, HOSSEINI S. Hamid R.
電気学会全国大会講演論文集(CD-ROM)   2018 ROMBUNNO.S2‐7   Mar 2018
山口仁志, 松尾達也, 龍輝優, WANG Douyan, 浪平隆男
電気学会全国大会講演論文集(CD-ROM)   2018 ROMBUNNO.1‐189   Mar 2018
S. Kodama, S. Matsumoto, D. Wang, Takao Namihira, H. Akiyama
International Journal of Plasma Environmental Science and Technology   11 138-143   Mar 2018
© 2018, Institute of Electrostatics. Persistent organic pollutants (POPs) are bioaccumulative and environmentally persistent substances. As POPs cannot be decomposed by conventional water treatments, a new treatment method is required. Several att...
福島祥夫, 坂本明子, 岩沢知幸, 浅野基和, 浪平隆男
精密工学会大会学術講演会講演論文集   2018 ROMBUNNO.D44   Mar 2018
D. Ikoma, D. Wang, T. Namihira
IEEE International Pulsed Power Conference   2017-June    Feb 2018
© 2017 IEEE. Dielectric Barrier Discharge type ozonizers has been used in water treatment, sterilization, and deodorization for many years. However, the yield in ozone generation leaves a room to expand its utilization. On the other hand, maximum ...
K. Watanabe, T. Yamaguchi, D. Wang, T. Namihira
IEEE International Pulsed Power Conference   2017-June    Feb 2018
© 2017 IEEE. Atmospheric-pressure non-thermal plasma jets have recently received significant attention due to their unique characteristics - low temperature, low cost, portability, and ease of operation - which are suitable to such novel applicati...
R. Fujita, Y. Nagata, D. Wang, T. Namihira
IEEE International Pulsed Power Conference   2017-June    Feb 2018
© 2017 IEEE. Pulsed streamer discharge plasma, a type of non-thermal plasma, is known to generate various chemically active species and as such is applied to many fields such as water quality improvement and ozone generation. However, detailed phy...
R. Shimotsu, D. Wang, T. Namihira
IEEE International Pulsed Power Conference   2017-June    Feb 2018
© 2017 IEEE. Nanosecond pulse generators (NS-PG), able to generate high voltage pulses with duration of 5 ns and fast rise and fall times of 2 ns, enable higher energy efficiencies of plasma processing. Here, we discuss development of a high-curre...
Takehiro Yamaguchi, Taiki Miyazaki, Douyan Wang, Takao Namihira
IEEE International Pulsed Power Conference   2017-June    Feb 2018
© 2017 IEEE. Studies of pulsed power technology have in recent years led to applications in various fields such as medicine, environment, and agriculture. For practical applications, both energy efficiency and system simplicity are important. The ...
Yasuaki Torigoe, Douyan Wang, Takao Namihira
IEEE International Pulsed Power Conference   2017-June    Feb 2018
© 2017 IEEE. Ethylene, a gas released from fruits and vegetables, has an effect to hasten ripening. Modern shipping has fruits and vegetables of various types transported together by container ship; however, the amount of ethylene released and the...
S. Kodama, A. Izumino, D. Wang, T. Namihira
IEEE International Pulsed Power Conference   2017-June    Feb 2018
© 2017 IEEE. The global water environment continues to worsen mainly due to organic pollution caused by agricultural and domestic and industrial wastewater. Wastewater includes many kinds of pollutants. Among them, persistent organic pollutants (P...
小森谷未星, 小板丈敏, 浪平隆男, 松田樹也, 川岡宏典, 矢野誠明
衝撃波シンポジウム講演論文集(CD-ROM)   2017 ROMBUNNO.2C1‐3   2018
小林昌太, 高橋克幸, 高木浩一, 永田湧成, 浪平隆男
応用物理学会東北支部学術講演会講演予稿集(Web)   72nd ROMBUNNO.30aB08 (WEB ONLY)   Nov 2017
Hikaru Kouyama, Takao Namihira, Makiko Kobayashi
IEEE International Ultrasonics Symposium, IUS      Oct 2017
© 2017 IEEE. Sol-gel composite can be useful for high temperature ultrasonic transducer applications and PbTiO3/Pb(Zr, Ti)O3 sol-gel composite is promising piezoelectric material because 100μm thick PT/PZT poled by positive DC corona discharge at ...
鈴木雄大, 山口太地, 渡辺謙, 浪平隆男, 王斗艶
電気・情報関係学会九州支部連合大会講演論文集(CD-ROM)   70th ROMBUNNO.01‐2A‐07   Sep 2017
K. Nakamura, D. Wang, T. Namihira
International Journal of Plasma Environmental Science and Technology   11 98-103   Jan 2017
Streamer discharge plasma, a type of non-thermal plasma, is a generation method of reactive radicals and ozone used for treatment of exhausted gas. Our laboratory has shown that nanosecond pulsed discharge with a pulse duration of 5 ns can generat...
T. Sonoda, Y. Higashi, Y. Yamada, D. Wang, T. Namihira, H. Akiyama
International Journal of Plasma Environmental Science and Technology   11 81-86   Jan 2017
Due to expectations to apply pulsed power technologies for various fields, applications of a pulsed electric field (PEF) on biological cells have been actively studied. In addition, the technique of chlorophyll fluorescence has become ubiquitous t...
Sho Terada, Taiki Senga, Shuji Owada, Takao Namihira
14th International Symposium on East Asian Resources Recycling Technology, EARTH 2017      Jan 2017
©The Mining and Materials Processing Institute of Japan Recently, electrical disintegration (ED) has been paid attention in the field of mineral processing and resources recycling since it can bring on preferential breakage at phase boundary. Howe...
溝上 信人, 河村 勇太, 浪平 隆男, 王 斗艶, 秋山 秀典
電気学会研究会資料. ED = The papers of technical meeting on electrical discharges, IEE Japan   2016(204) 5-9   Oct 2016
下津 龍生, 松本 悟, 佐東 広和, 児玉 伸太郎, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. ED = The papers of technical meeting on electrical discharges, IEE Japan   2016(204) 11-15   Oct 2016
佐藤 流星, 山田 雄太, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. ED = The papers of technical meeting on electrical discharges, IEE Japan   2016(204) 17-22   Oct 2016
藤田 遼, 永田 湧成, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. ED = The papers of technical meeting on electrical discharges, IEE Japan   2016(204) 27-30   Oct 2016
溝上 信人, 河村 勇太, 浪平 隆男, 王 斗艶, 秋山 秀典
電気学会研究会資料. PPT = The papers of technical meeting on pulsed power technology, IEE Japan   2016(88) 5-9   Oct 2016
下津 龍生, 松本 悟, 佐東 広和, 児玉 伸太郎, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. PPT = The papers of technical meeting on pulsed power technology, IEE Japan   2016(88) 11-15   Oct 2016
佐藤 流星, 山田 雄太, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. PPT = The papers of technical meeting on pulsed power technology, IEE Japan   2016(88) 17-22   Oct 2016
藤田 遼, 永田 湧成, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. PPT = The papers of technical meeting on pulsed power technology, IEE Japan   2016(88) 27-30   Oct 2016
溝上 信人, 河村 勇太, 浪平 隆男, 王 斗艶, 秋山 秀典
電気学会研究会資料. PST   2016(108) 5-9   Oct 2016
下津 龍生, 松本 悟, 佐東 広和, 児玉 伸太郎, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. PST   2016(108) 11-15   Oct 2016
佐藤 流星, 山田 雄太, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. PST   2016(108) 17-22   Oct 2016
藤田 遼, 永田 湧成, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. PST   2016(108) 27-30   Oct 2016
鳥越 泰明, 中瀬 裕貴, 郡 信太朗, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. PPT = The papers of technical meeting on pulsed power technology, IEE Japan   2016(69) 1-6   Oct 2016
生駒 大地, 山戸 雄太, 田村 隆二, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. PPT = The papers of technical meeting on pulsed power technology, IEE Japan   2016(69) 7-11   Oct 2016
鳥越 泰明, 中瀬 裕貴, 郡 信太朗, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. PST   2016(89) 1-6   Oct 2016
生駒 大地, 山戸 雄太, 田村 隆二, 王 斗艶, 浪平 隆男, 秋山 秀典
電気学会研究会資料. PST   2016(89) 7-11   Oct 2016
Haruka Higashi, Douyan Wang, Taishi Matsuoka, Takao Namihira, Hidenori Akiyama, Hisato Saitoh
IEEE Transactions on Plasma Science   44 1137-1143   Jul 2016
© 1973-2012 IEEE. An atmospheric-pressure helium plasma jet has been widely used for biological applications; due to the nature, this plasma jet is cold and can be generated in the atmosphere. In this paper, we examined whether the atmospheric-pre...
Tsuyoshi Sonoda, Norimitsu Takamura, Douyan Wang, Takao Namihira, Hidenori Akiyama
IEEE Transactions on Plasma Science   44 338   Mar 2016
Yuta Yamato, Naoki Abe, Douyan Wang, Takao Namihira, Hidenori Akiyama
Digest of Technical Papers-IEEE International Pulsed Power Conference   2015-October    Oct 2015
© 2015 IEEE. Low-yield in generation of ozone is a major barrier to expanding utilization of ozone. Ozone generation using nanosecond(ns) pulsed discharge has attracted attention as a high-yield ozonizer; our laboratory has developed a ns pulsed g...
S. Matsumoto, S. Kodama, D. Wang, T. Namihira, H. Akiyama
Digest of Technical Papers-IEEE International Pulsed Power Conference   2015-October    Oct 2015
© 2015 IEEE. The development of a short pulse generator is of paramount importance for various applications. Nanosecond pulse generators (NS-PG) which can generate a pulsed voltage with 5ns of duration and 2 ns of rise and fall times have been dev...
E. J.M. Van Heesch, Jin Zhang, Takao Namihira, A. H. Markosyan, F. J.C.M. Beckers, T. Huiskamp, W. F.L.M. Hoeben, A. J.M. Pemen, U. Ebert
Proceedings of the 2014 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2014   126-129   Oct 2015
© 2014 IEEE. Fast and repetitive switching in high-power circuits is a challenging task where the ultimate solutions still have to be found. Areas of application are pulsed power technology and power stations. We proposed a new approach. Supercrit...
Akihiko Ogasawara, Junkai Han, Kengo Fukunaga, Jinlong Wang, Douyan Wang, Takao Namihira, Mitsuru Sasaki, Hidenori Akiyama, Pengyi Zhang
IEEE Transactions on Plasma Science   43 3461-3469   Oct 2015
© 1973-2012 IEEE. Volatile organic compounds (VOCs) are common air pollutants existing in various atmospheric environments; as they present both acute and chronic effects on the health of a number of different human systems and organs, methods for...
J. Zhang, E. J.M. Van Heesch, F. J.C.M. Beckers, A. J.M. Pemen, R. P.P. Smeets, T. Namihira, A. H. Markosyan
IEEE Transactions on Dielectrics and Electrical Insulation   22 1823-1832   Aug 2015
© 1994-2012 IEEE. Fast and repetitive switching in high-power circuits is a challenging task where the ultimate solutions still have to be found. We proposed a new approach. Supercritical fluids (SCFs) combine favorable properties of liquids - ins...
Taiga Kibe, Takuo Inoue, Takao Namihira, Makiko Kobayashi
Japanese Journal of Applied Physics   54    Jul 2015
© 2015 The Japan Society of Applied Physics. The behavior of a high-temperature-immersion ultrasonic probe without a delay line using a PbTiO3/Pb(Zr,Ti)O3 (PT/PZT) ultrasonic transducer was investigated empirically. A ∼100-μm-thick PT/PZT film was...
Shota Fujimoto, Takao Namihira, Kazuki Iwata, Makiko Kobayashi
Japanese Journal of Applied Physics   54    Jul 2015
© 2015 The Japan Society of Applied Physics. The Curie temperature of Pb(Zr,Ti)O3/Pb(Zr,Ti)O3 (PZT/PZT) sol-gel composites was investigated empirically in order to determine the maximum operation temperature of PZT/PZT ultrasonic transducers. A PZ...
Y. Teramoto, D. Deguchi, S. Katsuki, T. Namihira, H. Akiyama, I. V. Lisitsyn
PPPS 2001 - Pulsed Power Plasma Science 2001   1 540-543   Jan 2015
© 2002 IEEE. The repetitive pulsed power generator was constructed with the semiconductor opening switch (SOS) realizing the pulse compression by inductive energy storage scheme. For the preliminary pulse compression, the magnetic pulse compressio...
Tsuyoshi Sonoda, Norimitsu Takamura, Douyan Wang, Takao Namihira, Hidenori Akiyama
IEEE Transactions on Plasma Science   42 3202-3208   Oct 2014
© 2014 IEEE. Agriculture in Japan is approaching a crisis for two reasons: a declining self-sufficiency rate and a decreasing number of agriculture workers. To solve these problems, plant factories have been attracting attention recently. Plant fa...
Norimitsu Takamura, Douyan Wang, Takao Satoh, Takao Namihira, Hisato Saitoh, Hidenori Akiyama
Electronics and Communications in Japan   97 65-73   Jan 2014
© 2014 Wiley Periodicals, Inc. Atmospheric-pressure, nonthermal plasma jets produced by using helium gas have been studied for various applications. In particular, plasma applications for biological treatment have attracted attention and investiga...
Y. Maruta, T. Okuyama, D. Wang, T. Namihira, H. Akiyama
Digest of Technical Papers-IEEE International Pulsed Power Conference      Dec 2013
Pulsed discharge plasmas, a type of non-thermal plasma, have received much attention as an abundant radical source. Pulsed discharge is mainly divided into two phases: A streamer discharge, which has a streamer head with very high electron energy;...
M. Yanagida, H. Sato, D. Wang, T. Namihira, H. Akiyama
Digest of Technical Papers-IEEE International Pulsed Power Conference      Dec 2013
In recent years, electrical discharge plasmas have been used as an effective method for treating water containing environmental pollutants. Some researchers have reported that species with high oxidation potential such as OH radical, O radical, an...
Tsuyoshi Sonoda, Norimitsu Takamura, Douyan Wang, Takao Namihira, Hidenori Akiyama
Digest of Technical Papers-IEEE International Pulsed Power Conference      Dec 2013
In order to improve productive efficiency of plant factory because the vegetable price of plant factory is high, in this study, leaf lettuce (Early impulse) was employed as specimen in plant factory and root of the lettuce was applied various PEFs...
TAKAMURA Norimitsu, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PST, プラズマ研究会   2013(58) 55-60   May 2013
MARUTA Yasuhiro, HIROTA Tomoyuki, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. ED, 放電研究会   2012(155) 7-11   Dec 2012
HIROTA Tomoyuki, MARUTA Yasuhiro, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. ED, 放電研究会   2012(155) 31-36   Dec 2012
HIRASHITA Yuki, ARAKI Yoshitaka, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2012(91) 17-20   Oct 2012
YANAGIDA Munemasa, SHIBUTA Satoshi, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2012(91) 21-26   Oct 2012
HIRASHITA Yuki, ARAKI Yoshitaka, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. ED, 放電研究会   2012(88) 17-20   Oct 2012
YANAGIDA Munemasa, SHIBUTA Satoshi, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. ED, 放電研究会   2012(88) 21-26   Oct 2012
NAMIHIRA Takao, WANG Douyan, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2012(74) 37-42   Aug 2012
HIROTA Tomoyuki, MARUTA Yasuhiro, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2012(74) 43-48   Aug 2012
MARUTA Yasuhiro, HIROTA Tomoyuki, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2012(74) 49-52   Aug 2012
ARAKI Yoshitaka, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2012(74) 59-62   Aug 2012
SHIMASAKI Yusuke, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2012(74) 75-80   Aug 2012
Kei Toda, Yuki Hato, Shin Ichi Ohira, Takao Namihira
Analytica Chimica Acta   603 60-66   Nov 2007
In this paper, novel microsystems for gas analysis and gas generation are described. The same microchannel devices covered with a gas permeable membrane were used for both the gas collection and the gas generation. For the first time, a dual liqui...
YAMAWAKI Kazutoshi, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2012(74) 85-90   Aug 2012
Hidenori Akiyama, Takashi Sakugawa, Takao Namihira, Koichi Takaki, Yasushi Minamitani, Naoyuki Shimomura
IEEE Transactions on Dielectrics and Electrical Insulation   14 1051-1064   Oct 2007
A review of mainly the past two years is undertaken of the industrial applications of pulsed power. Repetitively operated pulsed power generators with a moderate peak power have been developed for industrial applications. These generators are reli...
WANG Douyan, GOTO Takahiro, YOSHIDA Takashi, NAMIHIRA Takao, AKIYAMA Hidenori, FUJIWARA Toshiyuki, SATOU Daigo
電気学会研究会資料. PPT, パルスパワー研究会   2012(1) 13-16   Mar 2012
Jaegu Choi, Takao Namihira, Takashi Sakugawa, Sunao Katsuki, Hidenori Akiyama
IEEE Transactions on Dielectrics and Electrical Insulation   14 1025-1032   Aug 2007
A low inductance circuit has been fabricated in order to obtain shorter time to saturation during core unsaturation and current pulses with shorter widths during core saturation. B-H curves have been derived from the measured voltage and current w...
SHIBUTA Satoshi, YAMAWAKI Kazutoshi, MATSUMOTO Takao, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2011(61) 7-12   Oct 2011
Hidenori Akiyama, Shunsuke Sakai, Takashi Sakugawa, Takao Namihira
IEEE Transactions on Dielectrics and Electrical Insulation   14 825-833   Aug 2007
High repetition rate, high reliability and long lifetime are required for pulsed power generators for environmental applications. Also, it is necessary to optimize the pulsed power generator for each environmental application. Recent developments ...
YAMAWAKI Kazutoshi, SHIBUTA Satoshi, MATSUMOTO Takao, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2011(61) 25-30   Oct 2011
Douyan Wang, Manabu Jikuya, Seishi Yoshida, Takao Namihira, Sunao Katsuki, Hidenori Akiyama
IEEE Transactions on Plasma Science   35 1098-1103   Aug 2007
A Blumlein generator that has a pulsewidth of 100 ns was used to investigate the process of streamer discharge propagation in a coaxial cylindrical reactor using a streak camera. Both positive and negative polarities of the streamer discharges wer...
SHIBUTA Satoshi, YAMAWAKI Kazutoshi, MATSUMOTO Takao, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. ED, 放電研究会   2011(109) 7-12   Oct 2011
Takao Namihira, Douyan Wang, Takashi Sakugawa, Sunao Katsuki, Hidenori Akiyama
Journal of Advanced Oxidation Technologies   10 325-329   Jul 2007
Recently industrial applications of ozone have increased in widely different areas including oxidation, sterilization, deodorization, bleaching and others. Especially, a demand of movable ozonizer for treatment of diesel exhaust gas has been growi...
YAMAWAKI Kazutoshi, SHIBUTA Satoshi, MATSUMOTO Takao, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. ED, 放電研究会   2011(109) 25-30   Oct 2011
Tsuyoshi Kiyan, Akihiro Uemura, Bhupesh C. Roy, Takao Namihira, Masanori Hara, Mitsuru Sasaki, Motonobu Goto, Hidenori Akiyama
IEEE Transactions on Plasma Science   35 656-662   Jun 2007
This paper deals with the experimental results on prebreakdown phenomena and breakdown voltage characteristics of a negative dc point-to-plane gap in-compressed carbon dioxide up to the supercritical pressure as the first step to develop a plasma ...
TAKAKI Koichi, YAGI Ippei, CHIBA Hisashi, GO Tomio, ONO Ryo, NAMIHIRA Takao
電気学会研究会資料. PST, プラズマ研究会   2011(1) 15-19   Mar 2011
Takao Namihira, Shunsuke Sakai, Takahiro Yamaguchi, Kunihiro Yamamoto, Chiemi Yamada, Tsuyoshi Kiyan, Takaishi Sakugawa, Sunao Katsuki, Hidenori Akiyama
IEEE Transactions on Plasma Science   35 614-618   Jun 2007
A pulsed discharge produced underwater has been an attractive method to treat waste water. For the optimization and realization of the water treatment system utilizing underwater pulsed discharge, modeling analysis could be one of the essential wo...
OKADA Sho, WANG Douyan, NAMIHIRA Takao, KATSUKI Sunao, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2010(62) 7-10   Oct 2010
Kei Toda, Yuki Hato, Kotaro Mori, Shin Ichi Ohira, Takao Namihira
Talanta   71 1652-1660   Mar 2007
Sequential injection analysis (SIA) was applied to multi-gas monitoring for atmospheric analysis. HONO, NO2or NO was collected in an individual diffusion scrubber in which the channel array was filled with either HCl or triethanolamine solution. A...
TOCHIKUBO Fumiyoshi, SHIRAI Naoki, UCHIDA Satoshi, NAMIHIRA Takao
電気学会研究会資料. PPT, パルスパワー研究会   2010(62) 45-50   Oct 2010
OGATA Keisuke, AOKI Taisei, IIZASA Shinya, SIGEISHI Mitsuhiro, NAMIHIRA Takao, OHTU Masayasu, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2010(72) 55-60   Oct 2010
C. H. Zhang, S. Katsuki, J. G. Shi, H. Horita, T. Namihira, H. Akiyama
Solid State Phenomena   121-123 885-888   Jan 2007
In the development of our Z-pinch plasma EUV source, xenon (Xe) is used for the background gas discharges, and a solid tin (Sn) rod is used as target material due to its potential of high convention efficiency (CE) from input electric energy to EU...
OKADA Sho, WANG Douyan, NAMIHIRA Takao, KATSUKI Sunao, AKIYAMA Hidenori
電気学会研究会資料. ED, 放電研究会   2010(102) 7-10   Oct 2010
C. H. Zhang, C. H. Zhang, S. Katsuki, A. Kimura, H. Horita, T. Namihira, H. Akiyama
International Journal of Nanoscience   5 677-682   Dec 2006
Xenon capillary discharge sources are being developed for extreme ultraviolet (EUV) light for next generation lithography. However, the current sources generate in-band (2%), 2π EUV emission with conversion efficiency (CE) of <1%. Here we report p...
TOCHIKUBO Fumiyoshi, SHIRAI Naoki, UCHIDA Satoshi, NAMIHIRA Takao
電気学会研究会資料. ED, 放電研究会   2010(102) 45-50   Oct 2010
H. Akiyama, S. Katsuki, T. Namihira, T. Sakugawa, H. Imamura
Conference Record of the International Power Modulator Symposium and High Voltage Workshop   356-359   Dec 2006
Development of the high power EUV (extreme ultraviolet) source has been expected as a light source for the next generation lithography. There are two kinds of EUV sources: the discharge produced plasma (DPP) and the laser produced plasma (LPP). Th...
OGATA Keisuke, AOKI Taisei, IIZASA Shinya, SIGEISHI Mitsuhiro, NAMIHIRA Takao, OHTU Masayasu, AKIYAMA Hidenori
電気学会研究会資料. ED, 放電研究会   2010(112) 55-60   Oct 2010
N. Nomura, S. Abe, I. Uchida, K. Abe, H. Koga, S. Katsuki, T. Namihira, H. Akiyama, H. Takano, S. I. Abe
Conference Record of the International Power Modulator Symposium and High Voltage Workshop   490-493   Dec 2006
This paper describes the effect of intense burst RF electric fields (IBRFFs) on DNA in living mammalian cells. Chinese hamster ovary (CHO) cells were placed between two parallel plane electrodes and exposed to the IBRFF with a MHZ range frequency ...
SHIGEISHI Mitsuhiro, NAMIHIRA Takao, MIZOTA Kazuyoshi, YANO Tadashi
工学・工業教育研究講演会講演論文集   22 508-509   Aug 2010
Zi Li, Shunsuke Sakai, Chiemi Yamada, Douyan Wang, Sungjin Chung, Xiaofei Lin, Takao Namihira, Sunao Katsuki, Hidenori Akiyama
IEEE Transactions on Plasma Science   34 1719-1724   Oct 2006
Recently, cyanobacteria blooms (or water blooms) occurred on the surface of water bodies frequently and extensively due to eutrophia of the water. That has posed more and more serious environmental problems worldwide. In this paper, the effects of...
YAGI Ippei, TAKAKI Koichi, NAMIHIRA Takao, ONO Ryo
電気学会研究会資料. PPT, パルスパワー研究会   2010(24) 1-6   May 2010
Jaegu Choi, Takahiro Yamaguchi, Kunihiro Yamamoto, Takao Namihira, Takashi Sakugawa, Sunao Katsuki, Hidenori Akiyama
IEEE Transactions on Plasma Science   34 1744-1750   Oct 2006
In this paper, a pulsed-power generator that consists of a magnetic pulse compressor (MPC) and a Blumlein-type pulse forming network (BPFN) has been developed. The pulsed-power generator can be operated with high repetition rate, long lifetime, an...
MATSUMOTO Takao, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2010(24) 51-56   May 2010
MATSUMOTO Takao, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. ED, 放電研究会   2010(22) 51-56   May 2010
TAKAKI Koichi, YAGI Ippei, MUKAIGAWA Seiji, FUJIWARA Tamiya, GO Tomio, NAMIHIRA Takao
電気学会研究会資料. PPT, パルスパワー研究会   2010(1) 17-22   Jan 2010
Sunao Katsuki, Akihiro Kimura, Yoshihiro Kondo, Hiroyuki Horita, Takao Namihira, Takashi Sakugawa, Hidenori Akiyama
Journal of Applied Physics   99(1)    Jan 2006
This paper describes the effect of an axial magnetic field (Bz) on plasma pinch dynamics and on the extreme ultraviolet (EUV) emission property of a compact Z -pinch device for EUV sources. The Z -pinch xenon plasma was driven by a pulse current w...

Research Grants & Projects

 
Radical production using ns pulsed power
Grant-in-Aid for Scientific Research
Project Year: 1997   
Production of nitric monoxide using pulsed discharges for a medical application
Grant-in-Aid for Scientific Research
Project Year: 1999   
Pollution control using underwater discharge
Grant-in-Aid for Scientific Research
Project Year: 2002   
Recycled coarse aggregate produced by pulsed discharge in water
Grant-in-Aid for Scientific Research
Project Year: 2003