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Featured researches published by Satoshi Ichimura.


IEEE Transactions on Dielectrics and Electrical Insulation | 2017

A system to detect small amounts of oil leakage with oil visualization for transformers using fluorescence recognition

Li Lu; Satoshi Ichimura; Tomohiro Moriyama; Akira Yamagishi; Toshiaki Rokunohe

A system has been developed for detecting and visualizing small amounts of oil leakage from a transformer. The system uses a method of detecting fluorescence emitted from oil when it is irradiated by black light. Image processing using the relationship between saturation and intensity in a hue-saturation-intensity color space is used to recognize the leaked oil. According to the saturation-intensity relationship, the intensity of a surface without oil adhesion linearly increases as saturation increases. The oil-adhered area on the surface showed higher intensity. An algorithm was constructed for automatically setting a threshold value line to recognize the oil. On the other hand, in order to recognize the specular reflection light noise, images obtained after black light irradiation from two directions were compared. The developed system using the algorithm can detect and visualize oil leakage from a transformer at an amount of less than 1 mL.


Archive | 1997

Plasma processing apparatus and plasma processing method using the same

Satoshi Ichimura; Tadashi Sato; Isao Hashimoto


Archive | 1998

Plasma processing apparatus with a dielectric body in the waveguide

Hirofumi Seki; Satoshi Ichimura; Satoshi Takemori; Eiji Setoyama; Kouji Ishiguro; Yasuhiro Mochizuki; Sensuke Okada; Hajime Murakami


Archive | 2001

Ion beam processing apparatus for processing work piece with ion beam being neutralized uniformly

Satoshi Ogura; Shotaro Ooishi; Isao Hashimoto; Satoshi Ichimura


Archive | 2004

Apparatus and method for detecting vaporized gas

Satoshi Ichimura; Masami Sakamoto; Toshio Iwasaki


Archive | 2003

Method and apparatus for separating or capturing ions, and ion detection method and apparatus utilizing the same

Satoshi Ichimura; Tadashi Sato; Katsutoshi Tsuchiya


Archive | 1994

ELECTRON-BEAM ANNEALING DEVICE

Satoshi Ichimura; Tadashi Sato; 忠 佐藤; 智 市村


Archive | 2001

Neutral beam processing apparatus and method

Satoshi Ichimura; Katsutoshi Tsuchiya; Tadashi Sato; Yoshihiko Nagamine; Yoshiya Higuchi


Archive | 1985

STATIONARY INDUCTION ELECTRICAL APPARATUS

Li Lu; 河村 憲一; Kenichi Kawamura; 憲一 河村; 宮尾 博; Hiroshi Miyao; 博 宮尾; 裕 森田; Yutaka Morita; 森田 裕; 市村 智; Satoshi Ichimura; 智 市村; 淳 額賀; Atsushi Nukaga; 晋士 藤田; Shinji Fujita; 耕平 山口; Kohei Yamaguchi; 秀紀 小形; Hideki Ogata; 磨左登 鈴木; Masato Suzuki


Ieej Transactions on Power and Energy | 2016

A System for Detecting and Visualizing a Small Amount of Oil Leakage from a Transformer by Recognizing UV-Excited Fluorescence

Li Lu; Tomohiro Moriyama; Satoshi Ichimura; Yasutomo Saito; Akira Yamagishi; Toshiaki Rokunohe

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