Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887130 | Electrostatic latent image developing apparatus | Shizuo Yuge, Hidetoshi Kawabata | 1989-12-12 |
| 4878082 | Automatic image density control apparatus | Keigo Tange, Shizuo Yuge | 1989-10-31 |
| 4811045 | Electrostatic image forming apparatus | Hidekazu Nakagami, Nobuaki Nishioka, Tatsumi Makio | 1989-03-07 |