Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7876342 | Color image forming apparatus using registration marks | Eiji Nishikawa, Hiroyuki Maruyama, Hiroyuki Arai, Toshihiro Motoi, Kenji Izumiya +5 more | 2011-01-25 |
| 7542058 | Color image forming apparatus using registration marks | Eiji Nishikawa, Hiroyuki Maruyama, Hiroyuki Arai, Toshihiro Motoi, Kenji Izumiya +5 more | 2009-06-02 |
| 7453480 | Color image forming apparatus using registration marks | Eiji Nishikawa, Hiroyuki Maruyama, Hiroyuki Arai, Toshihiro Motoi, Kenji Izumiya +5 more | 2008-11-18 |
| 7079172 | Clock generating circuit and image-forming apparatus | Kenji Izumiya, Hiroyuki Maruyama, Tadayuki Ueda, Ryuji Okutomi, Eiji Nishikawa +1 more | 2006-07-18 |
| 7062187 | Fixing device for use in image forming apparatus | Youbao Peng, Atsushi Takahashi, Norio Joichi, Akifumi Isobe, Yoshiki Katayama +1 more | 2006-06-13 |
| 6911993 | Color image forming apparatus using registration marks | Eiji Nishikawa, Hiroyuki Maruyama, Hiroyuki Arai, Toshihiro Motoi, Kenji Izumiya +5 more | 2005-06-28 |
| 6839078 | Image forming apparatus which changes clock frequencies in accordance with recording sheet shrinkage | Kenji Izumiya, Hiroyuki Maruyama, Toshihiro Motoi, Ryuji Okutomi, Satoshi Ogata +3 more | 2005-01-04 |
| 6801725 | Image forming apparatus | Tadayuki Ueda, Toshihiro Motoi, Satoshi Ogata, Ryuji Okutomi, Eiji Nishikawa +3 more | 2004-10-05 |
| 6724161 | Image forming apparatus and control method of motor therein | Tadayuki Ueda, Hiroyuki Maruyama, Kenji Izumiya, Ryuji Okutomi, Eiji Nishikawa +1 more | 2004-04-20 |
| 6725005 | Drive control method of photoreceptor drum and image forming apparatus | Tadayuki Ueda, Hiroyuki Maruyama, Kenji Izumiya, Ryuji Okutomi, Satoshi Ogata +2 more | 2004-04-20 |