Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7821677 | Method and apparatus for image forming capable of accurately detecting displacement of transfer images and image density | Kayoko Tanaka, Shin Hasegawa, Shinji Kato, Nobutaka Takeuchi, Naoto Watanabe +8 more | 2010-10-26 |
| 7778560 | Image forming apparatus and method of adjusting charge bias | Hitoshi Ishibashi, Shin Hasegawa, Yushi Hirayama, Nobutaka Takeuchi, Shinji Kato +5 more | 2010-08-17 |
| 7747182 | Image forming apparatus with toner density control | Shinji Kato, Shin Hasegawa, Nobutaka Takeuchi, Kayoko Tanaka, Yushi Hirayama +3 more | 2010-06-29 |
| 7672602 | Developing unit and image forming apparatus which forces consumption of toner | Osamu Ariizumi, Kazumi Kobayashi, Shinji Kobayashi, Fukutoshi Uchida, Takashi Enami +8 more | 2010-03-02 |
| 7668471 | Image forming apparatus and image forming method | Nobutaka Takeuchi, Shin Hasegawa, Kayoko Tanaka, Yushi Hirayama | 2010-02-23 |
| 7664413 | Image forming device including a toner pattern forming unit | Kazumi Kobayashi, Shin Hasegawa, Nobutaka Takeuchi, Takashi Enami, Kiichirou Shimizu | 2010-02-16 |
| 7616909 | Image forming apparatus and image forming method | Shinji Kato, Shin Hasegawa, Hitoshi Ishibashi, Nobutaka Takeuchi, Osamu Ariizumi +8 more | 2009-11-10 |
| 7551864 | Image forming apparatus and method of controlling an image quality | Yuushi Hirayama, Shinji Kato, Nobutaka Takeuchi, Kayoko Tanaka, Kazumi Kobayashi +3 more | 2009-06-23 |
| 7551862 | Developing device, and process unit and image forming apparatus using the developing device | Kayoko Tanaka, Shin Hasegawa, Nobutaka Takeuchi, Yushi Hirayama | 2009-06-23 |
| 7551866 | Image forming method and apparatus with improved conversion capability of amount of toner adhesion | Naoto Watanabe, Shin Hasegawa, Hideki Kamaji, Shinji Kato, Hitoshi Ishibashi +7 more | 2009-06-23 |
| 7548704 | Image forming apparatus effectively conducting a process control | Shin Hasegawa, Shinji Kato, Hitoshi Ishibashi, Naoto Watanabe, Osamu Ariizumi +8 more | 2009-06-16 |
| 7536121 | Image forming apparatus and image density control method | Kiichirou Shimizu, Shinji Kato, Shin Hasegawa, Nobutaka Takeuchi, Yushi Hirayama +3 more | 2009-05-19 |
| 7515844 | Image density control method and image forming apparatus | Kayoko Tanaka, Yuji Hirayama, Nobutaka Takeuchi, Shin Hasegawa, Shinji Kato +3 more | 2009-04-07 |
| 7493058 | Image forming apparatus and toner concentration controlling method | Nobutaka Takeuchi, Shin Hasegawa, Kayoko Tanaka, Yushi Hirayama, Hitoshi Ishibashi +8 more | 2009-02-17 |
| 7260335 | Image-information detecting device and image forming apparatus | Shinji Kato, Yushi Hirayama, Shin Hasegawa, Hitoshi Ishibashi, Naoto Watanabe +6 more | 2007-08-21 |
| 7251420 | Method and apparatus for image forming capable of effectively detecting toner density | Shin Hasegawa, Noboru Sawayama, Shinji Kato, Hitoshi Ishibashi, Kayoko Tanaka +6 more | 2007-07-31 |
| 7228081 | Method and apparatus for image forming capable of controlling image-forming process conditions | Shin Hasegawa, Shinji Kato, Noboru Sawayama, Takashi Enami, Fukutoshi Uchida +6 more | 2007-06-05 |
| 6917779 | Toner conveying device and image forming apparatus including the toner conveying device | Yoshio Hattori | 2005-07-12 |