Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6763210 | Method of refilling used developing cartridge | Fumikazu Sato, Masatoshi Sakaguchi, Soichiro Nishimura | 2004-07-13 |
| 6738591 | Developing device with exchangeable toner box | Tomoaki Hattori | 2004-05-18 |