Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8081910 | Image forming apparatus and image forming method | Yoichi Yamada, Takatomo Fukumoto | 2011-12-20 |
| 7979012 | Image forming apparatus and image forming method | Yoichi Yamada | 2011-07-12 |
| 7929889 | Image forming apparatus and image forming method | Yoichi Yamada | 2011-04-19 |
| 7904012 | Image carrier cleaning device, image carrier cleaning method, and image forming apparatus | Masaru Kobashi, Yoichi Yamada, Masahiro Maeda | 2011-03-08 |