Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885223 | Method and apparatus for developing electrostatic latent image | Shigekazu Enoki, Shunji Katoh, Noriyuki Kimura | 1989-12-05 |
| 4875079 | Toner density control for multicolor electrophotographic copier | Takashi Bisaiji, Hideo Yoo | 1989-10-17 |
| 4855783 | Agitating roller and restricting member for a developing device | Masayuki Takashima | 1989-08-08 |
| 4814821 | Image-forming device | Shinichi Kamiyama, Hideo Yuh, Masayuki Takashima, Tadayuki Sekiya | 1989-03-21 |