Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4707577 | Vacuum interrupter | Shinzo Sakuma, Toshimasa Fukai, Masatoshi Takihana | 1987-11-17 |
| 4661666 | Vacuum interrupter | Shinzo Sakuma, Hideo Kawakami | 1987-04-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4707577 | Vacuum interrupter | Shinzo Sakuma, Toshimasa Fukai, Masatoshi Takihana | 1987-11-17 |
| 4661666 | Vacuum interrupter | Shinzo Sakuma, Hideo Kawakami | 1987-04-28 |