Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837493 | System for driving drum | Norio Fukuyama, Tetsuo Ohishi, Senzo Kyutoku, Thutomu Nakamura | 1989-06-06 |
| 4796054 | Control apparatus for a color copying machine | Kenji Inoue, Masaaki Tanaka, Akira Ogita | 1989-01-03 |