Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853729 | Dental X-ray film developing machine | — | 1989-08-01 |
| 4833263 | Novel electron-accepting compound and method for preparing the same | Yutaka Akasaki, Katsuhiro Sato, Katsumi Nukada, Hidemi Sudo | 1989-05-23 |
| 4831643 | Dental X-ray film back | — | 1989-05-16 |
| 4828015 | Continuous casting process for composite metal material | Eiichi Takeuchi, Kaname Wada, Kou Miyamura, Kazuo Kanamaru, Kazuo Sugino +1 more | 1989-05-09 |
| 4795500 | Photovoltaic device | Yasuo Kishi, Hiroshi Inoue | 1989-01-03 |