Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7680425 | Image forming apparatus and method for controlling tone characteristics based on tone-control patch image | Takashi Hama, Keiichi Taguchi, Hiroshi Nakazato, Ken Ikuma, Hidenori Kin | 2010-03-16 |
| 7623801 | Image forming apparatus and control method thereof | Hidenori Kin, Keiichi Taguchi, Shinsuke Yokote | 2009-11-24 |
| 7509064 | Image forming apparatus, a toner counter and a calculation method of toner consumption | Hidenori Kin, Takehiko Okamura, Shinsuke Yokote, Isao Inaba | 2009-03-24 |
| 7489882 | Image forming apparatus, a toner counter and a calculation method of toner consumption | Hidenori Kin, Takehiko Okamura, Shinsuke Yokote, Isao Inaba | 2009-02-10 |
| 7289743 | Image forming apparatus, a toner counter and a calculation method of toner consumption | Hidenori Kin, Takehiko Okamura, Shinsuke Yokote, Isao Inaba | 2007-10-30 |
| 7269362 | Image forming apparatus, control method and toner consumption calculating apparatus and method | Takashi Hama, Hidenori Kin, Keiichi Taguchi, Hiroshi Nakazato | 2007-09-11 |
| 7260336 | Image forming apparatus and image forming method for performing density control of toner images | Takashi Hama, Yoshihiro Nakashima | 2007-08-21 |
| 7251423 | Image forming apparatus and image forming method | Takashi Hama | 2007-07-31 |
| 7072597 | Image forming apparatus and image method for forming toner images with optimized patch image density | Takashi Hama, Yoshihiro Nakashima | 2006-07-04 |
| 7068957 | Image forming apparatus and image forming method involving application of a developing bias to a toner carrier | Takashi Hama | 2006-06-27 |
| 6909858 | Image forming apparatus, toner-adhesion calculation method and data processing method | Takashi Hama, Keiichi Taguchi, Hiroshi Nakazato | 2005-06-21 |
| 6889015 | Apparatus and method of forming patch image for optimizing density control factor | — | 2005-05-03 |
| 6871026 | Apparatus for and method of forming image under controlled image forming condition | Takashi Hama, Hidenori Kin, Keiichi Taguchi, Hiroshi Nakazato | 2005-03-22 |
| 6650849 | Method of and apparatus for controlling image density of toner image based on high and low-density correlation data | — | 2003-11-18 |
| 6539186 | Image forming apparatus having a cleaning device | Atsunori Kitazawa, Yujiro Nomura | 2003-03-25 |
| 6334034 | Detachable cleaning device for an image forming apparatus | Atsunori Kitazawa, Yujiro Nomura | 2001-12-25 |
| 5822169 | Contact charging device | Kenjiro Yoshioka | 1998-10-13 |
| 5453819 | Charger apparatus | Hajime Kurihara, Akihiko Ikegami, Takehiko Okamura, Takashi Hama, Kenjiro Yoshioka | 1995-09-26 |
| 5359395 | Contact charge supply device | Hajime Kurihara, Akihiko Ikegami, Hiroshi Tanaka, Kenjirou Yoshioka | 1994-10-25 |
| 5131768 | Replenishing an ink transfer sheet | Hajime Kurihara | 1992-07-21 |
| 5112710 | Electrophotographic image forming method | Hiroshi Ito | 1992-05-12 |
| 5090828 | Apparatus for replenishing a depleted ink sheet | Hajime Kurihara | 1992-02-25 |
| 5002845 | Electrophotographic image forming member and method and apparatus for transferring electrophotographic images formed on the member | Hiroshi Ito | 1991-03-26 |
| 4948692 | Combination toner and printer utilizing same | Koichi Higashimura, Yoshinori Miyazawa, Tsuneo Handa, Teruyuki Mizumoto, Hiroshi Ito +4 more | 1990-08-14 |
| 4942056 | Method for replenishing a depleted ink sheet | Hajime Kurihara | 1990-07-17 |