Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4547638 | Vacuum interrupter | Masayuki Kano, Toshimasa Fukai | 1985-10-15 |
| 4499349 | Vacuum interrupter | Shinzo Sakuma, Junichi Warabi, Masayuki Kano | 1985-02-12 |
| 4481390 | Vacuum circuit interrupter | Yoshiyuki Kashiwagi, Shinzo Sakuma, Junichi Warabi, Yukio Kobari, Hidemi Kawaguchi | 1984-11-06 |
| 4446346 | Vacuum interrupter | Shinzo Sakuma, Eiji Umeya | 1984-05-01 |
| 4431885 | Vacuum interrupter | Shinzo Sakuma, Junichi Warabi | 1984-02-14 |
| 4414448 | Vacuum circuit interrupter | Shinzo Sakuma, Junichi Warabi, Yukio Kobari, Hidemi Kawaguchi | 1983-11-08 |