Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9437380 | Switching unit or switching gear | Miki Yamazaki, Masato Yabu, Ayumu Morita | 2016-09-06 |
| 8975550 | Switch unit and switchgear | Daisuke Sugai, Takashi Sato, Takashi Shirone, Kazuhiro Satou, Takafumi Hosono | 2015-03-10 |
| 8872054 | Switch unit and switchgear equipped therewith | Miki Yamazaki, Kenji Tsuchiya, Ayumu Morita | 2014-10-28 |
| 8710388 | Switchgear and method for operating switchgear | Takashi Shirone, Takashi Sato, Kenji Tsuchiya, Ayumu Morita | 2014-04-29 |
| 8247725 | Vacuum switchgear | Ayumu Morita, Takashi Sato, Makoto Yano, Kenji Tsuchiya, Masato Kobayashi +2 more | 2012-08-21 |
| 7902479 | Vacuum switchgear | Kenji Tsuchiya, Makoto Yano, Ayumu Morita, Takashi Sato, Masato Kobayashi | 2011-03-08 |
| 7244903 | Vacuum switchgear | Kazuhiro Satou, Takashi Shirone, Kenji Tsuchiya, Masato Kobayashi | 2007-07-17 |
| 7193172 | Gas-insulated switchgear tank | Toshiaki Rokunohe, Yoshitaka Yagihashi, Fumihiro Endo, Shunji Ito, Takashi Omori | 2007-03-20 |
| 7064267 | Gas insulating apparatus and method for locating fault point thereof | Tatsuro Kato, Fumihiro Endo, Kazuo Kobayashi, Kazuhiro Saito | 2006-06-20 |
| 7027280 | Gas insulating apparatus and method for locating fault point thereof | Tatsuro Kato, Fumihiro Endo, Kazuo Kobayashi, Kazuhiro Saito | 2006-04-11 |
| 6884940 | Vacuum switchgear | Kazuhiro Satou, Takashi Shirone, Kenji Tsuchiya, Masato Kobayashi | 2005-04-26 |
| 6853528 | Gas insulating apparatus and method for locating fault point thereof | Tatsuro Kato, Fumihiro Endo, Kazuo Kobayashi, Kazuhiro Saito | 2005-02-08 |
| 6850399 | Gas insulated device and failure rating method | Tatsuro Kato, Fumihiro Endo, Kazuo Kobayashi, Kazuhiro Saito | 2005-02-01 |
| 6063997 | Gas insulated electric apparatus | Fumihiro Endo, Toshio Ishikawa, Shuzo Iwaasa, Tokio Yamagiwa | 2000-05-16 |
| 6002085 | Gas insulated switchgear | Toshio Ishikawa, Shuzo Iwaasa, Fumihiro Endo, Tokio Yamagiwa | 1999-12-14 |
| 5837955 | Gas circuit breaker | Jun Nukaga, Youichi Ohshita, Goro Daimon, Kenji Tsuchiya, Hiroshi Yoshimoto | 1998-11-17 |
| 5728989 | Insulation gas filled circuit breaker | Fumihiro Endo, Takuya Sugawara, Goro Daimon, Kenji Tsuchiya | 1998-03-17 |
| 5256976 | Power apparatus and method of location of a fault in a power apparatus on the basis of attenuation coefficients of electromagnetic coefficients of fault generated electromagnetic waves | Toshio Ishikawa, Fumihiro Endo, Shuzo Iwaasa, Tokio Yamagiwa, Yoshinori Tagawa | 1993-10-26 |
| 5146170 | Method and apparatus for locating an abnormality in a gas-insulated electric device | Toshio Ishikawa, Shuzuo Iwaasa, Fumihiro Endo | 1992-09-08 |