Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7756461 | Image forming apparatus with polishing roller that changes rotational direction during a polishing mode | Yoshihiko Maruyama | 2010-07-13 |
| 6999704 | Developing apparatus in an image forming apparatus | Koichi Hayashi, Hiroyoshi Tode, Koujyu Yamamoto | 2006-02-14 |
| 6852460 | Toner and image forming method using the same | Yukinori Nakayama, Hiroaki Moriyama, Masaki Ishii, Noriya Okamoto | 2005-02-08 |
| 6381437 | Image formation method and apparatus using electrophotography | Yoshio Ozawa, Hisashi Mukataka, Yuji Kamiyama, Motoki Moriguchi | 2002-04-30 |
| 6029034 | Image forming apparatus having an .alpha.-Si photosensitive drum and a non-magnetic uni-component toner | Keiji Itsukushima, Yoshio Ozawa, Hisashi Mukataka | 2000-02-22 |
| 4970584 | Method and apparatus for the compensation of color detection | Kaoru Imao | 1990-11-13 |
| 4277805 | Combination copying-facsimile reproduction apparatus | — | 1981-07-07 |