Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6686942 | Memory device for an image forming apparatus storing characteristics information about a process cartridge detachably attachable to the apparatus | Keiji Okano, Akira Domon | 2004-02-03 |
| 6600886 | Image forming apparatus comprising member to be charged and a charge member | Shinichi Tsukida, Nobuo Komiya | 2003-07-29 |
| 6532030 | Process cartridge, image forming apparatus, and image forming method | Keiji Okano, Akira Domon | 2003-03-11 |
| 6448989 | Image forming apparatus using digital light as image exposure means | Yasushi Shimizu, Masanobu Saito, Hiroshi Sato | 2002-09-10 |
| 6272306 | Developing apparatus and image forming apparatus having first and second voltages applied to a developing satisfying predetermined relationships | Masanobu Saito, Keiji Okano, Yasushi Shimizu, Hiroshi Satoh, Akira Domon +1 more | 2001-08-07 |
| 6167212 | Development density adjusting method for image forming apparatus | Hiroshi Satoh, Keiji Okano, Masanobu Saito, Yasushi Shimizu, Akira Domon +1 more | 2000-12-26 |
| 5740509 | Magnet roller and developing device | Takashi Hibi, Takeo Shoji | 1998-04-14 |