Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8000638 | Developing device using two-component developing agent and image forming apparatus provided with same | Junichi Matsumoto, Natsumi Katoh, Nobuo Iwata | 2011-08-16 |
| 7783233 | Developing device including improved conveying device, process cartridge and image forming apparatus using the same | Nobuo Iwata, Junichi Matsumoto, Tomoyuki Ichikawa, Natsumi Katoh | 2010-08-24 |