Issued Patents All Time
Showing 26–50 of 60 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, Kohta Fujimori, Shin Hasegawa, Shinji Kato, Nobutaka Takeuchi +8 more | 2010-10-26 |
| 7796902 | Image forming condition adjustment control for image forming apparatus | Naoto Watanabe, Tatsuya Niimi | 2010-09-14 |
| 7778560 | Image forming apparatus and method of adjusting charge bias | Kohta Fujimori, Shin Hasegawa, Yushi Hirayama, Nobutaka Takeuchi, Shinji Kato +5 more | 2010-08-17 |
| 7773899 | Image forming apparatus and method of calculating an amount of toner transfer by converting diffuse reflection output into a conversion value | — | 2010-08-10 |
| 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 |
| 7616909 | Image forming apparatus and image forming method | Shinji Kato, Shin Hasegawa, Kohta Fujimori, Nobutaka Takeuchi, Osamu Ariizumi +8 more | 2009-11-10 |
| 7551866 | Image forming method and apparatus with improved conversion capability of amount of toner adhesion | Naoto Watanabe, Shin Hasegawa, Hideki Kamaji, Shinji Kato, Kohta Fujimori +7 more | 2009-06-23 |
| 7548704 | Image forming apparatus effectively conducting a process control | Shin Hasegawa, Shinji Kato, Kohta Fujimori, Naoto Watanabe, Osamu Ariizumi +8 more | 2009-06-16 |
| 7546046 | Method and apparatus for controlling an image density | — | 2009-06-09 |
| 7526219 | Image forming apparatus and method of calculating an amount of toner transfer by converting regular reflection output into a normalized value | — | 2009-04-28 |
| 7493058 | Image forming apparatus and toner concentration controlling method | Nobutaka Takeuchi, Shin Hasegawa, Kohta Fujimori, Kayoko Tanaka, Yushi Hirayama +8 more | 2009-02-17 |
| 7477856 | Method and apparatus for image forming capable of effectively preventing resonance of frequencies | Takuzi Yoneda, Hiroshi Ono, Masanori Kawasumi, Yuji Arai, Toshio Koike +5 more | 2009-01-13 |
| 7443535 | Misalignment correction pattern formation method and misalignment correction method | — | 2008-10-28 |
| 7438379 | Alignment pattern detecting sensor, method of determining acceptance width of the alignment pattern detecting sensor, method of forming alignment pattern, and image forming apparatus | Noboru Sawayama | 2008-10-21 |
| 7398026 | Method and apparatus for controlling an image density | — | 2008-07-08 |
| 7344615 | Method and apparatus for performing a charging process on an image carrying device | Masumi Sato, Hiroshi Yoshinaga, Yukiko Iwasaki, Takatsugu Fujishiro, Masami Hiramatsu +1 more | 2008-03-18 |
| 7305195 | Image forming apparatus, method of calculating amount of toner transfer, methods of converting regular reflection output and diffuse reflection output, method of converting amount of toner transfer, apparatus for detecting amount of toner transfer, gradation pattern, and methods of controlling toner density and image density | — | 2007-12-04 |
| 7260335 | Image-information detecting device and image forming apparatus | Shinji Kato, Yushi Hirayama, Shin Hasegawa, Kohta Fujimori, Naoto Watanabe +6 more | 2007-08-21 |
| 7251420 | Method and apparatus for image forming capable of effectively detecting toner density | Kohta Fujimori, Shin Hasegawa, Noboru Sawayama, Shinji Kato, 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 |
| 7174124 | Tandem color image forming apparatus with an image transfer belt and backup roller | Takayuki Maruta, Yuuji Sawai, Takahiro Yoshikawa, Atsushi Takehara | 2007-02-06 |
| 7139511 | Image forming apparatus, method of calculating amount of toner transfer, methods of converting regular reflection output and diffuse reflection output, method of converting amount of toner transfer, apparatus for detecting amount of toner transfer, gradation pattern, and methods of controlling toner density and image density | — | 2006-11-21 |
| 7055928 | Alignment pattern detecting sensor, method of determining acceptance width of the alignment pattern detecting sensor, method of forming alignment pattern, and image forming apparatus | Noboru Sawayama | 2006-06-06 |
| 6977022 | Method and apparatus for performing a charging process on an image carrying device | Masumi Sato, Hiroshi Yoshinaga, Yukiko Iwasaki, Takatsugu Fujishiro, Masami Hiramatsu +1 more | 2005-12-20 |
| 6823149 | Image forming apparatus with variable speed transferring and fixing devices | Takahiro Yoshikawa, Takayuki Maruta, Yuuji Sawai | 2004-11-23 |