Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883969 | Method of ionizing gas within cathode-containing chamber | Yoshihiro Ishida, Akira Yoshida | 1989-11-28 |
| 4862104 | Phase synchronization system | Takuro Muratani, Toshinari Kimura | 1989-08-29 |
| 4840428 | Head rest adjusting device | Yoshio Arai | 1989-06-20 |
| 4830825 | Corrosion-resistant copper alloy | Sachio Goto, Akira Yasumori, Tsutomu Kimura, Hiroshi Hayashi | 1989-05-16 |
| 4829328 | Camera | Yasuhiko Tanaka, Fumio Iwai, Hiroshi Komatsuzaki | 1989-05-09 |