Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9568859 | Toner conveying member for reducing bending of same, developing device, and image forming apparatus | — | 2017-02-14 |
| 8233811 | Image stabilizing apparatus and image forming apparatus | Motoyuki Itoyama, Mitsuhiro Murata, Toshiaki Fujisawa, Masaya Fujitani | 2012-07-31 |
| 7729639 | Charging apparatus and image forming apparatus | Masanobu Deguchi | 2010-06-01 |
| 7697854 | Image forming apparatus with variable process speed | Motoyuki Itoyama, Mitsuhiro Murata | 2010-04-13 |
| 7684735 | Charging apparatus and image forming apparatus | Toshiaki Ino, Yasuhiro Nishimura, Susumu Murakami | 2010-03-23 |
| 7650096 | Electrification device, and image forming apparatus | Shinichi Azumi, Seiichi Kizu, Minoru Tomiyori | 2010-01-19 |
| 7619791 | Image forming method and image forming device | Motoyuki Itoyama, Hirofumi Sakita, Shuichi Morikuni | 2009-11-17 |
| 6512896 | Image forming apparatus with detachable mounting process cartridge | Masato Asanuma, Kouichi Takenouchi, Hiroo Naoi, Hirofumi Sakita, Hideji Saiko | 2003-01-28 |
| 6324351 | Image-forming apparatus unit and image-forming apparatus | Atsushi Kurimoto, Hirofumi Sakita, Hideji Saiko | 2001-11-27 |
| 6311027 | Image-forming apparatus which forms images by using a developer | Hirofumi Sakita, Hideji Saiko, Mitsuru Tokuyama, Masatsugu Nakamura, Hiroo Naoi +1 more | 2001-10-30 |
| 6226490 | Toner replenishing apparatus and image forming apparatus equipped with same | Itaru Kawabata, Hideji Saiko, Hirofumi Sakita, Masato Asanuma, Kouichi Takenouchi +2 more | 2001-05-01 |
| 6167227 | Developing unit and image forming apparatus | Itaru Kawabata, Toshio Nishino, Hirofumi Sakita, Hideji Saiko, Mitsuru Tokuyama | 2000-12-26 |
| 6157807 | Cleaning device with electrically biased conveying members for collecting, separating and reusing developer | Kouichi Takenouchi, Masato Asanuma, Kouji Shinkawa, Hiroo Naoi | 2000-12-05 |
| 6070035 | Image forming apparatus having developer supply device | Eiji Sato, Hirofumi Sakita, Masato Asanuma, Itaru Kawabata, Kouichi Takenouchi | 2000-05-30 |
| 6035168 | Developing device having a reduced width in the horizontal direction | Jitsuo Masuda, Hiroshi Kawamoto, Makoto Uehara, Yasutaka Maeda, Takeshi Wakabayashi +6 more | 2000-03-07 |
| 5983055 | Photosensitive element for electrophotography | Takahiro Bito, Kouichi Takenouchi, Teruhiko Noguchi, Yukihisa Imaue, Tatsuya Itou +3 more | 1999-11-09 |
| 5619312 | Developing device with developer-supplying mechanism | Shintarou Hatano, Hiroshi Kawahito, Yoshiki Ichikawa, Fumito Mizoguti, Masahiro Tsuji +5 more | 1997-04-08 |