Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7405673 | Operation control system and image forming apparatus | — | 2008-07-29 |
| 6876372 | Image forming apparatus | Tatsuji Kawashima | 2005-04-05 |
| 5684933 | Method and apparatus for forming images using a pre and post smoothing bit thinning down process | — | 1997-11-04 |
| 4907084 | Image reading unit with black level control | — | 1990-03-06 |