Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5606405 | Developing apparatus and image forming apparatus having developing apparatus | — | 1997-02-25 |
| 4839691 | Image forming apparatus | Hajime Tagawa | 1989-06-13 |
| 4742370 | Developing device with toner density adjustment | Reiji Murakami, Kozo Matsuyama, Shouji Takano, Kazutaka Takahashi, Motohiko Tanigawa | 1988-05-03 |