Issued Patents All Time
Showing 26–50 of 84 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9568879 | Image forming apparatus | Hideki Tobinaga, Hajime Nishida, Jumpei Aoyama, Junpei Kamichi, Satoshi Kuno +1 more | 2017-02-14 |
| 9302868 | Sheet feeder and image forming apparatus incorporating same | Yoshikuni Ishikawa, Tetsutaro Yasuda | 2016-04-05 |
| 9290341 | Sheet conveyor and image forming apparatus incorporating same | Yoshikuni Ishikawa | 2016-03-22 |
| 9004482 | Sheet conveyor and image forming apparatus incorporating same | Yoshikuni Ishikawa | 2015-04-14 |
| 8857809 | Sheet separation/conveyance device and image forming apparatus incorporating same | Tsugunao Toyooka, Yoshikuni Ishikawa, Satoshi Kuno | 2014-10-14 |
| 8833755 | Sheet feeding device, electrophotographic image forming apparatus incorporating same, and sheet separation method for the apparatus | Tsugunao Toyooka | 2014-09-16 |
| 8774691 | Image forming apparatus, fixing device, and fixing method | Shintaroh Yamada, Hidehiko Fujiwara, Kazunori Bannai | 2014-07-08 |
| 8774699 | Sheet feeder and image forming apparatus | Shun Kobayashi, Aki Ikeda, Yoshikuni Ishikawa | 2014-07-08 |
| 8752821 | Image forming apparatus | Tsugunao Toyooka, Kazunori Bannai | 2014-06-17 |
| 8746675 | Sheet feeder and image forming apparatus incorporating same | Hajime Nishida, Yoshikuni Ishikawa | 2014-06-10 |
| 8690525 | Vacuum pump | Yoshinobu Ohtachi, Yasushi Maejima | 2014-04-08 |
| 8628074 | Sheet feeding device and image forming apparatus incorporating same | Hideto Higaki, Yoshikuni Ishikawa | 2014-01-14 |
| 8594551 | Fixing device and image forming apparatus | Hidehiko Fujiwara | 2013-11-26 |
| 8585040 | Sheet feeder and image forming apparatus using the same | Aki Ikeda, Yoshikuni Ishikawa | 2013-11-19 |
| 8573586 | Sheet feeder and image forming apparatus | Shun Kobayashi, Yoshikuni Ishikawa | 2013-11-05 |
| 8523170 | Sheet feeder and image forming apparatus incorporating same | Hajime Nishida, Yoshikuni Ishikawa | 2013-09-03 |
| 8511668 | Sheet feeding device and image forming apparatus incorporating same | Yoshikuni Ishikawa, Yu Wakabayashi, Toshiaki Takahashi | 2013-08-20 |
| 8480073 | Sheet feeder and image forming apparatus incorporating same | Yoshikuni Ishikawa, Shun Kobayashi | 2013-07-09 |
| 8474811 | Sheet feeding device and image forming apparatus incorporating same | Toshiaki Takahashi, Yoshikuni Ishikawa, Yu Wakabayashi | 2013-07-02 |
| 8439347 | Sheet conveying device and image forming apparatus | Yoshikuni Ishikawa, Yu Wakabayashi, Aki Ikeda | 2013-05-14 |
| 8424865 | Sheet feeding device and image forming apparatus incorporating same | Yosuke Eguchi, Yoshikuni Ishikawa | 2013-04-23 |
| 8408532 | Image forming apparatus | Hideto Higaki, Tsugunao Toyooka | 2013-04-02 |
| 8342507 | Sheet conveying device and image forming apparatus | Toshiaki Takahashi, Yoshikuni Ishikawa | 2013-01-01 |
| 8302953 | Image forming apparatus | Toshifumi Togashi, Hideto Higaki, Tsugunao Toyooka | 2012-11-06 |
| 8267394 | Sheet feeding device and image forming apparatus incorporating same | Hideto Higaki, Yoshikuni Ishikawa | 2012-09-18 |