Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9164435 | Fixing device and image forming apparatus | Tomoya Adachi, Tomohiko Fujii, Yutaka Naitoh, Minoru Toyoda, Hitoshi Fujiwara +9 more | 2015-10-20 |
| 8706010 | Image forming apparatus using a toner container in which the toner outlet may be positioned in a horizontal or vertical direction | Tomohiro Kubota, Naoki Nakatake, Sho Tsuritani | 2014-04-22 |
| 8594519 | Image forming apparatus and toner supply method | Naoki Nakatake, Tetsumaru Fujita, Tomohiro Kubota, Kohta Sakaya | 2013-11-26 |
| 8571426 | Toner supply method, development device, process unit, and image forming apparatus | Tomohiro Kubota, Naoki Nakatake, Tomofumi Yoshida, Sho Tsuritani | 2013-10-29 |
| 8503892 | Developing unit, image forming apparatus, and process cartridge | Kohta Sakaya, Tomohiro Kubota, Tetsumaru Fujita, Naoki Nakatake | 2013-08-06 |
| 8483583 | Image forming apparatus and toner supply method | Naoki Nakatake, Tetsumaru Fujita, Tomohiro Kubota, Kohta Sakaya | 2013-07-09 |
| 8452216 | Image forming apparatus which mixes new unused toner with used old toner | Tetsumaru Fujita, Naoki Nakatake | 2013-05-28 |
| 8295717 | Image forming apparatus | Rumi Miyazaki, Keiji Kunimi | 2012-10-23 |
| 8257891 | Electrophotographic photoconductor, process cartridge and image forming apparatus | Naoki Nakatake, Toshihiko Koizumi, Tsuyoshi Ueda, Tadayoshi Uchida, Hajime Suzuki | 2012-09-04 |
| 7885566 | Toner consumption-calculating apparatus, image forming apparatus, and toner consumption calculating method | Rumi Konishi, Kenichi Ono, Akihiro Kawasaki, Yoshiko Ogawa | 2011-02-08 |
| 7801471 | Transfer unit and image forming apparatus | Tomoya Adachi | 2010-09-21 |
| 7734235 | Image forming apparatus including a metallic driving roller | Akihiro Kawasaki, Yoshie Iwakura, Tomoya Adachi, Takafumi Miyazaki | 2010-06-08 |
| 7636539 | Tandem intermediate-transfer type image forming apparatus | Akihiro Kawasaki, Yoshie Iwakura, Takafumi Miyazaki, Tomoya Adachi | 2009-12-22 |
| 7610004 | Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of image | Shinji Kato, Yuuji Sawai, Hiromi Ogiyama, Shin Kayahara, Ken Yoshida +1 more | 2009-10-27 |
| 7499669 | Transfer unit and image forming apparatus | Tomoya Adachi | 2009-03-03 |
| 7440720 | Image forming apparatus and image transferring unit for the same | — | 2008-10-21 |
| 7428400 | Primary transfer unit of image forming apparatus | Yoshie Iwakura, Akihiro Kawasaki, Takafumi Miyazaki, Tomoya Adachi | 2008-09-23 |
| 7280792 | Method for evaluating changes in resistance of electric resistance member and image forming apparatus using same | Yuuji Sawai, Yoshihiro Fujiwara, Shin Kayahara, Hiromi Ogiyama, Ken Yoshida +1 more | 2007-10-09 |
| 7203433 | Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of image | Shinji Kato, Yuuji Sawai, Hiromi Ogiyama, Shin Kayahara, Ken Yoshida +1 more | 2007-04-10 |
| 7174124 | Tandem color image forming apparatus with an image transfer belt and backup roller | Hitoshi Ishibashi, Takayuki Maruta, Yuuji Sawai, Takahiro Yoshikawa | 2007-02-06 |
| 7139497 | Color image forming apparatus having a variable controlled speed ratio | — | 2006-11-21 |
| 7003238 | Intermediate image transfer device for a color image forming apparatus | Ken Yoshida, Yuuji Sawai, Hiromi Ogiyama, Shin Kayahara, Shinji Kato +1 more | 2006-02-21 |
| 6782227 | Transfer device for setting a suitable recording medium adsorbing bias, and an image-forming apparatus including the transfer device | Hitoshi Ishibashi | 2004-08-24 |
| 6366754 | Color image forming apparatus with toner recycling | Masumi Sato, Kazuhiko Yuuki, Hiroshi Yoshinaga, Yoshinori Ozawa | 2002-04-02 |
| 6334039 | Method and apparatus for image forming apparatus capable of accurately detecting toner image patterns | Hiroshi Yoshinaga, Masumi Sato, Kazuhiko Yuuki, Yoshinori Ozawa | 2001-12-25 |