Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4892986 | Vacuum circuit breaker | Ruyji Watanabe, Hisashi Ando | 1990-01-09 |
| 4651172 | Information recording medium | Ryuji Watanabe, Tetsuro Minemura, Tetsuo Ito, Hisashi Ando, Yoshihito Maeda +3 more | 1987-03-17 |
| 4546222 | Vacuum switch and method of manufacturing the same | Ryuji Watanabe, Akira Wada, Hisashi Ando, Yukio Kurosawa, Kiyoji Iwashita | 1985-10-08 |
| 4497875 | Ceramic substrate with metal plate | Hideo Arakawa, Keiichi Kuniya, Akio Chiba | 1985-02-05 |
| 4482912 | Stacked structure having matrix-fibered composite layers and a metal layer | Akio Chiba, Keiichi Kuniya, Jin Onuki | 1984-11-13 |