Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7783208 | Image forming apparatus and toner consumption amount calculating method | Toshiki Shiroki, Takatoshi Sugita, Isao Inaba | 2010-08-24 |
| 7680425 | Image forming apparatus and method for controlling tone characteristics based on tone-control patch image | Takashi Hama, Hidetsugu Shimura, Keiichi Taguchi, Hiroshi Nakazato, Ken Ikuma | 2010-03-16 |
| 7623801 | Image forming apparatus and control method thereof | Keiichi Taguchi, Hidetsugu Shimura, Shinsuke Yokote | 2009-11-24 |
| 7567761 | Image forming apparatus and a method of controlling the image forming apparatus | Shinsuke Yokote | 2009-07-28 |
| 7509064 | Image forming apparatus, a toner counter and a calculation method of toner consumption | Hidetsugu Shimura, Takehiko Okamura, Shinsuke Yokote, Isao Inaba | 2009-03-24 |
| 7489882 | Image forming apparatus, a toner counter and a calculation method of toner consumption | Hidetsugu Shimura, Takehiko Okamura, Shinsuke Yokote, Isao Inaba | 2009-02-10 |
| 7421217 | Image forming apparatus, image forming method, toner counter and calculation method of toner consumption | Takatoshi Sugita, Isao Inaba, Toshiki Shiroki | 2008-09-02 |
| 7289743 | Image forming apparatus, a toner counter and a calculation method of toner consumption | Hidetsugu Shimura, Takehiko Okamura, Shinsuke Yokote, Isao Inaba | 2007-10-30 |
| 7269362 | Image forming apparatus, control method and toner consumption calculating apparatus and method | Takashi Hama, Hidetsugu Shimura, Keiichi Taguchi, Hiroshi Nakazato | 2007-09-11 |
| 7206525 | Image forming apparatus, a toner counter and a calculation method of toner consumption | Takatoshi Sugita, Isao Inaba, Ken Ikuma | 2007-04-17 |
| 7058321 | Device and method of calculating toner consumption, and image forming apparatus using the same | — | 2006-06-06 |
| 6871026 | Apparatus for and method of forming image under controlled image forming condition | Hidetsugu Shimura, Takashi Hama, Keiichi Taguchi, Hiroshi Nakazato | 2005-03-22 |
| 6684047 | Image forming apparatus with reduced image defects | Toru Fujita, Kuniaki Tanaka | 2004-01-27 |
| 6526238 | Developing device | Takehiko Okamura, Yoshiro Koga, Fumio Takagi | 2003-02-25 |
| 6507722 | Developing device | Takehiko Okamura | 2003-01-14 |
| 6336022 | Developing unit | Kazuhiro Ichikawa, Yoshihiro Nakashima, Tomoe Aruga, Yoichi Yamada, Yukio Takayama +1 more | 2002-01-01 |
| 6295433 | Developing unit having a conveying fin for loading a supply roller with toner | Kazuhiro Ichikawa, Yoshihiro Nakashima, Tomoe Aruga, Yoichi Yamada, Yukio Takayama +1 more | 2001-09-25 |
| 6226484 | Developing unit using specific developer composition | Kazuhiro Ichikawa, Yoshihiro Nakashima, Tomoe Aruga, Yoichi Yamada, Yukio Takayama +1 more | 2001-05-01 |
| 6198893 | Image forming apparatus having a plurality of developing units | Kazuhiro Ichikawa, Yoshihiro Nakashima, Tomoe Aruga, Yoichi Yamada, Yukio Takayama +1 more | 2001-03-06 |
| 6192209 | Developing unit | Kazuhiro Ichikawa, Yoshihiro Nakashima, Tomoe Aruga, Yoichi Yamada, Yukio Takayama +1 more | 2001-02-20 |
| 6163674 | Developing unit having developing roller with restraining blade | Kazuhiro Ichikawa, Yoshihiro Nakashima, Tomoe Aruga, Yoichi Yamada, Yukio Takayama +1 more | 2000-12-19 |
| 6151474 | Developing unit using elastic supply roller | Kazuhiro Ichikawa, Yoshihiro Nakashima, Tomoe Aruga, Yoichi Yamada, Yukio Takayama +1 more | 2000-11-21 |
| 6094554 | Developing unit having developing roller with specific side surface roughness | Kazuhiro Ichikawa, Yoshihiro Nakashima, Tomoe Aruga, Yoichi Yamada, Yukio Takayama +1 more | 2000-07-25 |
| 5192636 | Toner and a process for preparing thereof | Masanao Kunugi, Tsuneo Handa | 1993-03-09 |