Issued Patents 2004
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6833228 | Toner and an image formation method | Seijiro Ishimaru, Mutsuo Watanabe, Yoshimichi Katagiri | 2004-12-21 |
| 6821696 | Toner for optical fixing, manufacturing method therefor and image formation apparatus using it | Yoshimichi Katagiri, Shinichi Yaoi, Tomoaki Tanaka, Seijiro Ishimaru, Satoshi Takezawa +4 more | 2004-11-23 |
| 6803165 | Toner for electrophotography, developing agent for electrophotography using the toner, image forming method, and image forming device | Seijiro Ishimaru | 2004-10-12 |
| 6767683 | Image forming toner, 2-component developer, image forming method and method for manufacturing image forming toner | Yasuyuki Furuse, Seijirou Ishimaru | 2004-07-27 |
| 6746808 | Image forming color toner, color image forming method and color image forming apparatus | Shinichi Yaoi, Tomoaki Tanaka, Yoshimichi Katagiri, Seijiro Ishimaru, Satoshi Takezawa +1 more | 2004-06-08 |
| 6727030 | Toner and an image formation method | Seijiro Ishimaru, Mutsuo Watanabe, Yoshimichi Katagiri | 2004-04-27 |
| 6704538 | Color image forming apparatus and color toner | Shinichi Yaoi, Tomoaki Tanaka, Yoshimichi Katagiri | 2004-03-09 |