Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10199188 | Gas circuit breaker | Masanao Terada, Yuki Nakai, Hiroaki Hashimoto, Hajime Urai, Katsuhiko Shiraishi | 2019-02-05 |
| 9899172 | Circuit breaker and circuit breaker operating method | Hajime Urai, Yasuaki Aoyama, Hiroaki Hashimoto, Katsuhiko Shiraishi, Tatsuro Kato +2 more | 2018-02-20 |
| 9754742 | Gas circuit breaker | Masanao Terada, Katsuhiko Shiraishi | 2017-09-05 |
| 9673005 | Switchgear | Hisashi Urasaki, Makoto Hirose, Masataka Sasaki, Yasuaki Aoyama | 2017-06-06 |
| 9620315 | Gas circuit breaker | Masanao Terada, Hajime Urai, Katsuhiko Shiraishi, Hiroaki Hashimoto, Noriyuki Yaginuma | 2017-04-11 |
| 9520699 | Switchgear | Hajime Urai, Yasuaki Aoyama, Hiroaki Hashimoto, Tatsuro Kato, Ayumu Morita +1 more | 2016-12-13 |