Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6678487 | Mainframe structure of image forming apparatus | Satoshi Hamaya | 2004-01-13 |
| 6671475 | Drive power transmission device, image forming apparatus and process cartridge | Kazunori Katada, Masami Maruko, Naoto Tokutake, Takehito Hiraga, Satoshi Hamaya | 2003-12-30 |
| 6522861 | Color image forming apparatus | Naoto Tokutake, Motozi Kawamoto, Masakazu Fukuchi, Kazuyoshi Kimura, Susumu Okui +2 more | 2003-02-18 |
| 6484003 | Color image forming apparatus with rack having detachable units | Naoto Tokutake, Motozi Kawamoto, Masakazu Fukuchi, Kazuyoshi Kimura, Susumu Okui +2 more | 2002-11-19 |
| 6393234 | Bottom structure of image forming apparatus | — | 2002-05-21 |
| 5953561 | Process cartridge for use in image forming apparatus | Naoki Otomo, Mitsugu Nemoto, Yutaka Miyasaka, Motozi Kawamoto, Kazunori Katada | 1999-09-14 |