Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6647213 | Image forming apparatus having a mode in which a process unit may be replaced | — | 2003-11-11 |
| 6561611 | Detector unit and ink cartridge incorporated in recording apparatus, and method of judging presence of the ink cartridge using the detector unit | Yoichi Kobayashi, Norihiro Yamashita, Mamoru Ukita, Kazuo Otsuka, Norihiko Kurashima | 2003-05-13 |