Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5821496 | Method of controlling transient recovery voltage and gas insulation switch gear using the same | Takashi Sato, Katsuichi Kashimura, Osamu Koyanagi, Yoshihito Asai, Yukio Korosawa | 1998-10-13 |
| 5814781 | Puffer type gas circuit breaker | Osamu Koyanagi, Kastuichi Kashimura, Yoshihito Asai, Yukio Kurosawa, Goro Daimon +2 more | 1998-09-29 |
| 5793597 | Puffer type gas breaker | Yukio Kurosawa, Katsuichi Kashimura, Osamu Koyanagi, Yoshihito Asai, Kogi Ishikawa +5 more | 1998-08-11 |
| 5610381 | Compression gas puffer type circuit breaker | Kenichi Natsui, Yukio Kurosawa, Goro Daimon, Yoshihito Asai, Katsuichi Kashimura +2 more | 1997-03-11 |