Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661282 | Gas insulated circuit breaker | Kenji Tsuchiya, Kunio Hirasawa, Yuuichirou Yamane | 1997-08-26 |
| 5610381 | Compression gas puffer type circuit breaker | Eisaku Mizufune, Kenichi Natsui, Yukio Kurosawa, Yoshihito Asai, Katsuichi Kashimura +2 more | 1997-03-11 |