Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8639150 | Development device and image forming apparatus | Tomoya Ohmura, Yasuo Takuma, Junichi Matsumoto, Hiroshi Kikuchi | 2014-01-28 |
| 8280281 | Development device and image forming apparatus | Tomoya Ohmura, Junichi Matsumoto, Nobuo Iwata | 2012-10-02 |
| 8260175 | Developing apparatus and image forming apparatus using same | Tomoyuki Ichikawa, Junichi Matsumoto, Nobuo Iwata | 2012-09-04 |
| 8185021 | Developing device and image forming apparatus | Junichi Matsumoto, Tomoyuki Ichikawa, Nobuo Iwata | 2012-05-22 |
| 8175488 | Image forming apparatus and image forming method including transporting developer using an airflow generator | Nobuo Iwata, Junichi Matsumoto, Tomoya Ohmura | 2012-05-08 |
| 8139985 | Developing apparatus and image forming apparatus using same | Tomoyuki Ichikawa, Junichi Matsumoto, Nobuo Iwata | 2012-03-20 |
| 8112016 | Developing agent circulation system and image forming apparatus using same | Junichi Matsumoto, Nobuo Iwata, Tomoya Ohmura | 2012-02-07 |
| 8103197 | Developing system and image forming apparatus incorporating same | Junichi Matsumoto, Nobuo Iwata, Tomoya Ohmura | 2012-01-24 |
| 8073368 | Development device and image forming apparatus | Nobuo Iwata, Junichi Matsumoto, Tomoya Ohmura | 2011-12-06 |
| 8036576 | Developing device including a stirring mechanism for a two-component developer and image forming apparatus including same | Junichi Matsumoto, Nobuo Iwata, Tomoya Ohmura | 2011-10-11 |
| 8014703 | Development device and image forming apparatus | Tomoya Ohmura, Junichi Matsumoto, Nobuo Iwata | 2011-09-06 |
| 8000638 | Developing device using two-component developing agent and image forming apparatus provided with same | Tomoya Ohmura, Junichi Matsumoto, Nobuo Iwata | 2011-08-16 |
| 7953350 | Developing device for developing latent images to toner images | Junichi Matsumoto, Nobuo Iwata, Tomoyuki Ichikawa | 2011-05-31 |
| 7912408 | Image forming apparatus, process cartridge, and development device | Nobuo Iwata, Junichi Matsumoto, Tomoyuki Ichikawa | 2011-03-22 |
| 7835653 | Developing device and image forming apparatus | Junichi Matsumoto, Tomoyuki Ichikawa, Nobuo Iwata | 2010-11-16 |
| 7792472 | Developing apparatus and image forming apparatus using same | Tomoyuki Ichikawa, Junichi Matsumoto, Nobuo Iwata | 2010-09-07 |
| 7783233 | Developing device including improved conveying device, process cartridge and image forming apparatus using the same | Nobuo Iwata, Junichi Matsumoto, Tomoyuki Ichikawa, Tomoya Ohmura | 2010-08-24 |
| 7729642 | Stress-reduceable transport unit and image forming apparatus using the same | Junichi Matsumoto, Nobuo Iwata, Tomoyuki Ichikawa | 2010-06-01 |
| 7636536 | Image forming apparatus having an improved developer conveying system | Nobuo Iwata, Junichi Matsumoto, Tomoyuki Ichikawa | 2009-12-22 |