Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047804 | Image forming apparatus having a toner replenishment control system | — | 1991-09-10 |
| 4989049 | Multi-color image forming apparatus | Yasuhiro Kusuda, Takafumi Tottori | 1991-01-29 |
| 4814820 | Electrostatic latent image developing apparatus | Hideaki Hirahara, Tatsuo Takabe, Kazuya Ishida, Hiromitsu Saijo, Shinya Matsuda | 1989-03-21 |
| 4730206 | Copying apparatus having a sheet refeeding device | Shigeru Sawada, Masazumi Ito, Masaaki Oyabu | 1988-03-08 |
| 4721382 | Copying apparatus having a sheet refeeding device | Masazumi Ito, Masaaki Oyabu, Shigeru Sawada | 1988-01-26 |
| 4370050 | Image transfer type copying apparatus with pre-transfer cleaning of transfer paper | Toshio Matsui | 1983-01-25 |