Issued Patents All Time
Showing 1–25 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9919722 | Railroad vehicle | Kenji Tsuchiya, Makoto Watanabe, Yoshinori Shimada, Hideo Kitabayashi, Wataru Murata | 2018-03-20 |
| 9899172 | Circuit breaker and circuit breaker operating method | Hajime Urai, Yasuaki Aoyama, Hiroaki Hashimoto, Katsuhiko Shiraishi, Tatsuro Kato +2 more | 2018-02-20 |
| 9818562 | Switch | Takashi Sato, Makoto Yano, Kenji Tsuchiya, Akio Nakazawa | 2017-11-14 |
| 9520699 | Switchgear | Hajime Urai, Yasuaki Aoyama, Hiroaki Hashimoto, Tatsuro Kato, Toshiaki Rokunohe +1 more | 2016-12-13 |
| 9437380 | Switching unit or switching gear | Miki Yamazaki, Tomoaki Utsumi, Masato Yabu | 2016-09-06 |
| 9378913 | Operating device or vacuum switch | Takashi Sato, Kenji Tsuchiya, Masato Yabu, Akio Nakazawa, Hisao Kawakami +2 more | 2016-06-28 |
| 9318285 | Switchgear and opening and closing method thereof | Takashi Sato, Kenji Tsuchiya | 2016-04-19 |
| 9312669 | Resistor, method of assembling the same, and switchgear | Naoya Okada, Akitaka Shiina, Kenji Tsuchiya, Mitsuaki Yamamoto, Hiroaki Morii +1 more | 2016-04-12 |
| 9238784 | Grease for electrical contact and slide electricity structure, power switch, vacuum circuit breaker, vacuum insulated switchgear, and vacuum-insulated switchgear assembling method | Takashi Sato, Kazuhiro Sato, Kenji Tsuchiya, Takao Kanno, Toshio Nitta | 2016-01-19 |
| 9142371 | Actuator for contactor | Takamitsu Hae, Masato Yabu, Akio Nakazawa, Kenji Tsuchiya | 2015-09-22 |
| 8946581 | Switchgear | Masato Yabu, Kenji Tsuchiya | 2015-02-03 |
| 8872054 | Switch unit and switchgear equipped therewith | Miki Yamazaki, Kenji Tsuchiya, Tomoaki Utsumi | 2014-10-28 |
| 8796570 | Interlock device of draw-out type circuit breaker, draw-out type circuit breaker, and power distribution board | Masato Kobayashi, Masato Suzuki | 2014-08-05 |
| 8791379 | Switchgear | Shuichi Kikukawa, Kenji Tsuchiya, Keiichi Takahashi | 2014-07-29 |
| 8710388 | Switchgear and method for operating switchgear | Tomoaki Utsumi, Takashi Shirone, Takashi Sato, Kenji Tsuchiya | 2014-04-29 |
| 8576545 | Switchgear | Keiichi Takahashi, Kenji Tsuchiya, Masato Kobayashi, Daisuke Sugai | 2013-11-05 |
| 8570121 | Air circuit breaker | Masashi Sawada, Masato Yabu, Motoki Shibuya | 2013-10-29 |
| 8373082 | Vacuum insulated switchgear | Kenji Tsuchiya, Masato Kobayashi | 2013-02-12 |
| 8304679 | Vacuum insulated switchgear | Kenji Tsuchiya, Masato Kobayashi | 2012-11-06 |
| 8294057 | Electrode for switch and vacuum switch, and method of manufacturing electrode for switch or vacuum switch | Miki Yamazaki, Kenji Tsuchiya, Masato Kobayashi, Shuichi Kikukawa, Shigeru Kikuchi | 2012-10-23 |
| 8247725 | Vacuum switchgear | Takashi Sato, Tomoaki Utsumi, Makoto Yano, Kenji Tsuchiya, Masato Kobayashi +2 more | 2012-08-21 |
| 8237076 | Vacuum switch | Takashi Sato, Kenji Tsuchiya | 2012-08-07 |
| 8049130 | Vacuum insulated switch and vacuum insulated switchgear | Masato Kobayashi, Kenji Tsuchiya, Miki Yamazaki | 2011-11-01 |
| 8035054 | Vacuum insulated switchgear | Hiroyuki Ozawa, Kenji Tsuchiya, Masato Kobayashi | 2011-10-11 |
| 7911303 | Circuit breaker and opening and closing method thereof | Minoru Hosoda, Yoshihiko Matsuda, Masato Suzuki, Keiichi Miyashita, Shigetoshi Oouchi +2 more | 2011-03-22 |