Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9561912 | Belt tracking system, multi-roller assembly and image forming apparatus employing same | Yoshiki Hozumi, Naomi Sugimoto, Kazuchika Saeki | 2017-02-07 |
| 9376257 | Belt tracking system, multi-roller assembly and image forming apparatus employing same | Yoshiki Hozumi, Naomi Sugimoto, Kazuchika Saeki | 2016-06-28 |
| 9260248 | Belt positioning system, multi-roller assembly and image forming apparatus employing same | Akira Asaoka, Kazuchika Saeki, Yoshiki Hozumi | 2016-02-16 |
| 9238552 | Belt tracking system, roller assembly, and image forming apparatus including same | Yoshiki Hozumi, Naomi Sugimoto, Kazuchika Saeki | 2016-01-19 |
| 9145258 | Belt positioning system, multi-roller assembly and image forming apparatus employing same | Akira Asaoka, Kazuchika Saeki, Yoshiki Hozumi | 2015-09-29 |
| 8944243 | Belt tracking system, multi-roller assembly and image forming apparatus employing same | Yoshiki Hozumi, Akira Asaoka, Kazuchika Saeki | 2015-02-03 |
| 8657104 | Belt positioning system, multi-roller assembly and image forming apparatus employing same | Akira Asaoka, Kazuchika Saeki, Yoshiki Hozumi | 2014-02-25 |
| 8014708 | Belt member, transfer unit incorporating same, image forming apparatus incorporating same, and method of evaluating same | — | 2011-09-06 |
| 7953355 | Endless belt member, transfer unit incorporating same, and image forming apparatus incorporating same | — | 2011-05-31 |
| 7860438 | Image forming apparatus using toner including an external additive at an additive burial rate of not less than 40 percent | Shinya Nakayama | 2010-12-28 |
| 7809314 | Image forming apparatus capable of preventing generation of residual images and transfer failure | — | 2010-10-05 |
| 7742729 | Transfer device, image forming apparatus and method for evaluating electric property | — | 2010-06-22 |
| 7684741 | Image forming apparatus | — | 2010-03-23 |
| 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, Hiromi Ogiyama, Shin Kayahara, Atsushi Takehara, Ken Yoshida +1 more | 2009-10-27 |
| 7502583 | Transfer device and image forming apparatus for enhancement of an image stored on a recording medium | Ryuuichi Minbu, Kazuchika Saeki, Atsushi Tano | 2009-03-10 |
| 7346287 | Transfer device for forming a stable transfer electric field, and an image forming apparatus including the transfer device | Hiromi Ogiyama, Kohki Katoh, Akihiro Sugino, Mitsuru Takahashi, Katsuya Kawagoe | 2008-03-18 |
| 7280792 | Method for evaluating changes in resistance of electric resistance member and image forming apparatus using same | Yoshihiro Fujiwara, Shin Kayahara, Hiromi Ogiyama, Atsushi Takehara, Ken Yoshida +1 more | 2007-10-09 |
| 7277662 | Belt member, belt driving unit, and image forming apparatus | Hideaki Mochimaru | 2007-10-02 |
| 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, Hiromi Ogiyama, Shin Kayahara, Atsushi Takehara, 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, Takahiro Yoshikawa, Atsushi Takehara | 2007-02-06 |
| 7003238 | Intermediate image transfer device for a color image forming apparatus | Ken Yoshida, Hiromi Ogiyama, Atsushi Takehara, Shin Kayahara, Shinji Kato +1 more | 2006-02-21 |
| 6983121 | Image forming apparatus, image transferring device and recording medium conveying method | — | 2006-01-03 |
| 6901234 | Image forming apparatus including an intermediate image transfer belt and high resistance contact member | Hiromi Ogiyama, Katsuya Kawagoe, Shin Kayahara, Ryuuichi Minbu, Mitsuru Takahashi +2 more | 2005-05-31 |
| 6885842 | Image forming apparatus with photoconductive element and intermediate image transfer member | — | 2005-04-26 |
| 6829450 | Transfer bias applying method for an image forming apparatus and device for the same | Takahiro Tamiya, Akihiro Sugino, Hiromi Ogiyama, Katsuya Kawagoe, Kohki Katoh +1 more | 2004-12-07 |