Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851881 | Optical printing system | Takemi Yamamoto, Koji Kobayakawa, Ryohei Komiya, Akira Sago, Izumi Takagi +2 more | 1989-07-25 |
| 4810058 | Exposure device utilizing a liquid crystal shutter matrix | Kazuo Sangyoji | 1989-03-07 |