Issued Patents All Time
Showing 1–25 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6949726 | Heating apparatus having electrostatic adsorption function | Takuma Kushihashi, Masaki Seki | 2005-09-27 |
| 6838631 | Power use circuit breaker and electrical circuit arrangement for electric power generation plant | Noriaki Munakata, Haruo Honda, Shigetoshi Oouchi, Masaki Shinohara | 2005-01-04 |
| 6751078 | Power use circuit breaker and electrical circuit arrangement for electric power generation plant | Noriaki Munakata, Haruo Honda, Shigetoshi Oouchi, Masaki Shinohara | 2004-06-15 |
| 6048216 | Vacuum circuit breaker as well as vacuum valve and electric contact used in same | Katsuhiro Komuro, Yoshitaka Kojima, Yoshio Koguchi, Toru Tanimizu, Yoshimi Hakamata +1 more | 2000-04-11 |
| 5882730 | Method for the preparation of a double-coated body of boron nitride | Noboru Kimura | 1999-03-16 |
| 5852266 | Vacuum circuit breaker as well as vacuum valve and electric contact used in same | Katsuhiro Komuro, Yoshitaka Kojima, Yoshio Koguchi, Toru Tanimizu, Yoshimi Hakamata +1 more | 1998-12-22 |
| 5814781 | Puffer type gas circuit breaker | Osamu Koyanagi, Kastuichi Kashimura, Yoshihito Asai, Goro Daimon, Kenji Tsuchiya +2 more | 1998-09-29 |
| 5793597 | Puffer type gas breaker | Eisaku Mizufune, Katsuichi Kashimura, Osamu Koyanagi, Yoshihito Asai, Kogi Ishikawa +5 more | 1998-08-11 |
| 5759646 | Vessel of pyrolytic boron nitride | Shoji Kano, Nobuo Kawada, Ryoji Nakajima | 1998-06-02 |
| 5697150 | Method forming an electric contact in a vacuum circuit breaker | Katsuhiro Komuro, Yoshitaka Kojima, Yoshio Koguchi, Toru Tanimizu, Yoshimi Hakamata +1 more | 1997-12-16 |
| 5691521 | Vacuum circuit breaker with improved contact assembly | Katsuhiro Komuro, Yoshitaka Kojima, Shunkichi Endoo, Tooru Tanimizu, Yoshimi Hakamata +1 more | 1997-11-25 |
| 5610381 | Compression gas puffer type circuit breaker | Eisaku Mizufune, Kenichi Natsui, Goro Daimon, Yoshihito Asai, Katsuichi Kashimura +2 more | 1997-03-11 |
| 5563459 | Apparatus for controlling opening and closing timings of a switching device in an electric power system | Hiroshi Arita, Kunio Hirasawa, Tadashi Sato | 1996-10-08 |
| 5557083 | Vacuum circuit breaker and electric contact | Katsuhiro Komuro, Yoshitaka Kojima, Yoshio Koguchi, Toru Tanimizu, Yoshimi Hakamata +1 more | 1996-09-17 |
| 5502290 | Switch mechanism | Osamu Koyanagi, Kunio Hirasawa, Masanori Tsukushi, Tadashi Sato, Youichi Ohshita | 1996-03-26 |
| 5473494 | Electrical power supply system | Youichi Ohshita, Masaru Watanabe, Isao Nishida, Yoshihito Asai, Tokio Yamagiwa | 1995-12-05 |
| 5467049 | Solid-state switch | Junzo Kida, Hiroshi Arita | 1995-11-14 |
| 5410116 | Gas isolated disconnecting switch and gas isolated switching device | Jun Ozawa, Toshio Ishikawa | 1995-04-25 |
| 5391930 | Circuit breaker with parallel resistor | Youichi Ohshita, Katuichi Kashimura, Akira Hashimoto, Osamu Koyanagi, Isao Nishida | 1995-02-21 |
| 5379014 | Vacuum circuit breaker | Takashi Sato, Kouji Suzuki, Akira Hashimoto, Shunkichi Endoo | 1995-01-03 |
| 5305174 | Method of and device for protecting electrical power system | Masao Morita, Toshiaki Ueda, Hiroshi Arita, Tokio Yamagiwa | 1994-04-19 |
| 5274205 | Gas blast, puffer type circuit breaker with improved nozzle | Masanori Tsukushi, Akira Hashimoto, Minori Satoh, Kunio Hirasawa, Fumihiro Endo +1 more | 1993-12-28 |
| 5229561 | Puffer-type gas circuit breaker | Yasuharu Seki, Masanori Tsukushi, Akira Hashimoto | 1993-07-20 |
| 5189270 | Contact structure for vacuum circuit breaker | Morihisa Matumoto, Kouji Suzuki, Shunkichi Endo | 1993-02-23 |
| 5155312 | Puffer type gas circuit interrupter | Akira Hashimoto, Youichi Ohshita, Kogi Ishikawa, Masanori Tsukushi | 1992-10-13 |