Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6295192 | Switchgear | Yukimori Kishida, Kenichi Koyama, Hiroyuki Sasao, Kazuhiko Nishimiya, Yuichi Yamaji | 2001-09-25 |
| 6051893 | Electric power supply system for load | Hiroshi Yamamoto, Hiroyuki Sasao, Kenichi Koyama, Yukimori Kishida, Masakazu Fukada | 2000-04-18 |
| 6046423 | Switchgear | Yukimori Kishida, Kenichi Koyama, Hiroyuki Sasao, Kazuhiko Nishimiya, Yuichi Yamaji | 2000-04-04 |
| 5077453 | Arc-extinguisher of a switch | Hiroshi Hasegawa, Junichiro Nishitani | 1991-12-31 |