NAMIHIRA Takao

J-GLOBAL         Last updated: Nov 9, 2018 at 10:46
 
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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]
Kouyama Hikaru, Kibe Taiga, Fujimoto Shota, Namihira Takao, Kobayashi Makiko
JAPANESE JOURNAL OF APPLIED PHYSICS   55(7)    Jul 2016   [Refereed]
王 斗艶, 浪平 隆男, 秋山 秀典
静電気学会誌   39(6) 230-236   Nov 2015

Misc

 
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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   2009(93) 5-8   Oct 2009
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   2009(93) 15-19   Oct 2009
MATSUMOTO Takao, WANG Douyan, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PST, プラズマ研究会   2009(73) 35-40   Aug 2009
YOSHIDA Hidekazu, MATSUO Keita, CHOI Jeagu, 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   2008(65) 1-5   Dec 2008
OKADA Sho, WANG Douyan, NAMIHIRA Takao, KATSUKI Sunao, AKIYAMA Hidenori
電気学会研究会資料. PST, プラズマ研究会   2009(53) 51-56   Aug 2009
AOKI Taisei, INOUE Shota, ARAKI Junichi, MAEDA Seiji, IIZASA Shinya, TAKAKI Motoshi, WANG Douyan, NAMIHIRA Takao, SIGEISHI Mitsuhiro, OHTU Masayasu, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2008(65) 31-36   Dec 2008
ARAKI Junichi, INOUE Shota, AOKI Taisei, MAEDA Seiji, IIZASA Shinya, TAKAKI Motoshi, WANG Douyan, NAMIHIRA Takao, SIGEISHI Mitsuhiro, OHTU Masayasu, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2008(46) 23-27   Sep 2008
HIRAYAMA Katsumasa, MATSUDA Mikiya, WANG Douyan, LIN Xiaofei, TAKANO Hiroyoshi, AKIYAMA Hidenori, NAMIHIRA Takao
電気学会研究会資料. PPT, パルスパワー研究会   2008(46) 51-56   Sep 2008
INOUE Shota, ARAKI Junichi, AOKI Taisei, MAEDA Seiji, IIZASA Shinya, TAKAKI Motoshi, WANG Douyan, NAMIHIRA Takao, SIGEISHI Mitsuhiro, OHTU Masayasu, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2008(46) 29-34   Sep 2008
MATSUMOTO Takao, TOKUICHI Takaaki, WANG Douyan, KATSUKI Sunao, NAMIHIRA Takao, AKIYAMA Hidenori
電気学会研究会資料. PPT, パルスパワー研究会   2008(33) 9-14   Sep 2008
YOSHINAGA Keita, WANG Douyan, NAMIHIRA Takao, KATSUKI Sunao, AKIYAMA Hidenori, TAMARIBUTI Hiroyuki
電気学会研究会資料. PPT, パルスパワー研究会   2008(33) 15-20   Sep 2008
SAKAI Shunsuke, 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   2008(33) 21-26   Sep 2008
OKADA Sho, YOSHINAGA Keita, WANG Bouyan, 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   2008(33) 45-50   Sep 2008
KURAMOTO Kazuma, TOKUICHI Takaaki, 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   2008(33) 51-56   Sep 2008
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...
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...
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...
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 ...
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...
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...
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 ...
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...
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...
TOMIMARU Nobufumi, IMAMURA Hideki, NAKAGAWA Kiei, SAKUGAWA Takashi, 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   2007(1) 47-50   Feb 2007
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...
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...
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...
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 ...
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...
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...
Taisuke Fudamoto, Taisuke Fudamoto, Takao Namihira, Takao Namihira, Sunao Katsuki, Sunao Katsuki, Hidenori Akiyama, Hidenori Akiyama, Tomofumi Imakubo, Tomofumi Imakubo, Takashi Majima, Takashi Majima
IEEJ Transactions on Fundamentals and Materials   126 669-674   Jul 2006
Pulsed streamer discharges in water using a wire to cylinder electrode contained in 42 mm inner glass tube were investigated with respect to its spatial expanse associated with voltage waveforms. The discharge reactor with a continuous flow system...
Takashi Sakugawa, Takashi Sakugawa, Takahiro Yamaguchi, Takahiro Yamaguchi, Kunihiro Yamamoto, Kunihiro Yamamoto, Jaegu Choi, Jaegu Choi, Tsuyoshi Kiyan, Tsuyoshi Kiyan, Takao Namihira, Takao Namihira, Sunao Katsuki, Sunao Katsuki, Hidenori Akiyama, Hidenori Akiyama
IEEJ Transactions on Fundamentals and Materials   126 703-708   Jul 2006
Pulsed power has been used to produce non-thermal plasmas in gases that generate a high electric field at the tip of streamer discharges, where high energy electrons, free radicals, and ozone are produced. Recently, all solid-state pulsed power ge...
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...
Sunao Katsuki, Keiichi Tanaka, Taisuke Fudamoto, Takao Namihira, Hidenori Akiyama, Hansjoachim Bluhm
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers   45(1A) 239-242   Jan 2006
The temporal development of shock waves generated by pulsed streamer discharges in water was observed by means of time-resolved imaging based on the laser Schlieren method. The pressure of these shock waves was calculated using the Hugoniot equati...
Takao Namihira, Mitsuhiro Shigeishi, Kazuyuki Nakashima, Akira Murakami, Kaori Kuroki, Tsuyoshi Kiyan, Yuichi Tomoda, Takashi Sakugawa, Sunao Katsuki, Hidenori Akiyama, Masayasu Ohtsu
IEEJ Transactions on Fundamentals and Materials   126(3) 197-198   Jan 2006
In Japan, the recycling ratio of concrete scraps has been kept over 98 % after the Law for the Recycling of Construction Materials was enforced in 2000. In the present, most of concrete scraps were recycled as the Lower Subbase Course Material. On...
重石 光弘, 浪平 隆男, 大津 政康, 秋山 秀典
Proceedings of the Japan Concrete Institute   28(1) 1475-1280   2006
廃コンクリート塊の建設廃棄物に占める割合は依然として高く,廃コンクリート塊の排出量増大,および天然骨材の需給逼迫への対策として,廃コンクリート塊の構造物のためのコンクリート用骨材として循環利用推進が重要な課題となっている。本研究では,高電圧のパルスパワー技術によって水中パルス放電による廃コンクリート塊から可能な限り品質を損なわぬように骨材を分離回収する技術を提案し,その手法によってコンクリート供試体から分離,回収された粗骨材の品質が,加熱すりもみ法による再生粗骨材と遜色なく,JIS A 5...
C. H. Zhang, S. Katsuki, H. Imamura, H. Horita, T. Namihira, H. Akiyama
Journal of Physics D: Applied Physics   38(23) 4191-4195   Dec 2005
Extreme ultraviolet (EUV) radiation with wavelengths of 11-14 nm is seen as the most promising candidate for a new lithographic technology. In the development of our Z-pinch plasma EUV source, xenon (Xe) is used for the background gas discharges a...
C. H. Zhang, S. Katsuki, H. Horta, H. Imamura, Y. Kondo, T. Namihira, H. Akiyama
Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)   4 2320-2323   Dec 2005
EUV radiation with wavelengths of 11 to 14 nm is seen as the most promising candidate for a new lithographic technology. Compared to synchrotron radiation sources and laser produced plasmas, gas discharge produced plasma (GDP) sources for EUV radi...
C. H. Zhang, T. Kiyan, T. Namihira, A. Uemura, S. Katsuki, H. Akiyama, T. Fang, M. Sasaki, M. Goto
Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)   3 1845-1848   Dec 2005
The generation of dc corona discharges in supercritical CO2 using a point-plane electrode is studied experimentally. The results reveal a bizarre situation for CO2 breakdown voltages, which is much lower in near the supercritical point than the me...
C. H. Zhang, S. Katsuki, H. Horita, A. Kimura, T. Namihira, H. Akiyama
2005 5th IEEE Conference on Nanotechnology   2 881-884   Dec 2005
Recently, a Z-pinch GDPP light source as EUV for next generation lithography has being developed in our lab. However, the physics of the processes, plasma and surface discharges produced, niagneto-hydrodynamic, photon radiation transport, and plas...
C. H. Zhang, S. Katsuki, H. Horita, T. Namihira, H. Akiyama
6th Annual International Siberian Workshop and Tutorials on Electron Devices and Materials, EDM 2005   2005 8-10   Dec 2005
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...
Douyan Wang, Takao Namihira, Sunao Katsuki, Hidenori Akiyama
Journal of Advanced Oxidation Technologies   8 248-254   Jul 2005
Non-thermal plasma produced by pulsed power discharges in atmospheric pressure gases have been studied for the treatment of exhaust gases. In this paper, results are reported of short duration of tens of nano-seconds pulsed power applied to a mixt...
Chaohai Zhang, Sunao Katsuki, Takashi Sakugawa, Akira Kimura, Haruhiko Fukumoto, Takao Namihira, Hidenori Akiyama
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers   44(7B) 5544-5546   Jul 2005
Non-equilibrium ionization plays a critical role in Z-pinch gas discharge produced plasma (GDPP) EUV source. However, the physics of the processes, plasma and surface discharges produced, magneto-hydrodynamic, photon radiation transport, and plasm...
SAKUGAWA Takashi, NAMIHIRA Takao, KATSUKI Sunao, AKIYAMA Hidenori, OSADA Toshihiro, KOGANEZAWA Takehisa
Journal of Plasma and Fusion Research   81(5) 350-354   May 2005
Recently, high-repetition-rate all-solid-state pulsed power generators with long life time and high reliability, have been developed for industrial applications with plasmas, such as high-repetition-rate pulsed gas lasers, high energy density plas...
NAMIHIRA Takao, SAKUGAWA Takashi, KATSUKI Sunao, AKIYAMA Hidenori
Journal of Plasma and Fusion Research   81(5) 355-358   May 2005
Pulsed power technology enables the generation of large electrical power of micro to nano second duration by compressing and releasing electrical energy. The pulsed power is utilized in a variety of applications such as large-volume non-thermal pl...
KATSUKI Sunao, SAKUGAWA Takashi, NAMIHIRA Takao, AKIYAMA Hidenori
Journal of Plasma and Fusion Research   81(4) 231-239   Apr 2005
Presently high energy-density plasmas produced by gas discharges (DPP) are the most powerful EUV source for the next generation&rsquo;s high volume semiconductor manufacturing(HVM). This paper describes the radiation process in Z-pinch plasmas bas...

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