Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831244 | Gas-insulated switch | Hideo Kawamoto, Kenichi Okubo | 2004-12-14 |
| 6762387 | Gas-insulated switch | Hideo Kawamoto, Kenichi Okubo | 2004-07-13 |
| 6717088 | Gas-insulated switch | Hideo Kawamoto, Kenichi Okubo | 2004-04-06 |
| 6696657 | Puffer type gas circuit breaker | Makoto Hirose, Hideo Kawamoto | 2004-02-24 |