Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4211903 | Electromagnetic puffer type gas circuit breaker | Katsuichi Kashimura, Osamu Koyanagi, Yoshio Yoshioka, Kunio Hirasawa | 1980-07-08 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4211903 | Electromagnetic puffer type gas circuit breaker | Katsuichi Kashimura, Osamu Koyanagi, Yoshio Yoshioka, Kunio Hirasawa | 1980-07-08 |