Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7406272 | Image forming apparatus and system with attachable and detachable developer container | Kazuhiro Nishiyama, Minoru Kishigami, Katsumi Okamoto | 2008-07-29 |
| 7403734 | Developing device, image forming apparatus, image forming system, and method of assembling developer supplying roller | Katsumi Okamoto | 2008-07-22 |