Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9817344 | Fixing device capable of sensing temperature of heating body outside frame surrounding heating body regardless of moving frame and image forming apparatus including this fixing device | Yoshihiro Yamagishi, Takashi Eiki, Kotatsu Kawaguchi | 2017-11-14 |
| 9804547 | Fixing device and image forming apparatus that reduce rotation failure of fixing belt | Yoshihiro Yamagishi, Kotatsu Kawaguchi, Takashi Eiki | 2017-10-31 |
| 9778607 | Fixing device having fixing belt and image forming apparatus including the same | Kotatsu Kawaguchi, Yoshihiro Yamagishi, Takashi Eiki | 2017-10-03 |
| 9658583 | Fixing device and image forming apparatus | Yoshihiro Yamagishi, Takashi Eiki | 2017-05-23 |
| 9454115 | Fixing device and image forming apparatus | Yoshiharu Kanematsu, Yoshihiro Yamagishi, Takashi Eiki, Eriko Hayashi, Hironori Takahashi | 2016-09-27 |
| 9436141 | Fixing device comprising controller which judges whether or not fixing belt is rotating and image forming apparatus including same | Yoshihiro Yamagishi, Takashi Eiki | 2016-09-06 |
| 9405246 | Fixing device comprising heating stop device to stop heat source from heating fixing belt and image forming apparatus including same | Yoshihiro Yamagishi, Satoshi Ishii, Takashi Eiki | 2016-08-02 |
| 9405245 | Fixing device comprising deformation preventing member for preventing deformation of fixing belt and image forming apparatus including same | Yoshihiro Yamagishi, Satoshi Ishii, Takashi Eiki | 2016-08-02 |
| 9400465 | Fixing device and image forming apparatus | Takashi Eiki, Yoshihiro Yamagishi | 2016-07-26 |
| 9372457 | Fixing device and image forming apparatus | Yoshihiro Yamagishi, Satoshi Ishii, Takashi Eiki | 2016-06-21 |
| 9335691 | Fixing device and image forming apparatus | Yoshihiro Yamagishi, Yoshiharu Kanematsu, Takashi Eiki, Hironori Takahashi, Eriko Hayashi | 2016-05-10 |
| 9329531 | Developing device, image forming unit and image forming apparatus provided with the same | — | 2016-05-03 |
| 9323179 | Developing unit and image forming apparatus | Tamotsu Shimizu, Shizuka Okada, Akifumi Yamaguchi | 2016-04-26 |
| 9310718 | Development device and image forming apparatus including the same | Tamotsu Shimizu, Shizuka Okada, Akifumi Yamaguchi | 2016-04-12 |
| 9235163 | Development device and image forming apparatus | Minoru Wada | 2016-01-12 |
| 9229346 | Image forming apparatus that controls discharge and replenishment of developer based on the electric charge amount of the developer contained in developing part and compositions of existing developer and new developer | Yukihiro Mori | 2016-01-05 |
| 9229393 | Fixing device configured to fix a toner image onto a recording medium and image forming apparatus including the same | Yoshiharu Kanematsu, Yoshihiro Yamagishi, Takashi Eiki, Eriko Hayashi, Hironori Takahashi | 2016-01-05 |
| 9104160 | Image forming apparatus that adjusts density of toner image based on replacement rate of toner in developing part and toner in replaced cartridge | — | 2015-08-11 |
| 9063468 | Developing device and image forming apparatus provided therewith | Minoru Wada, Takahisa Nakaue, Tamotsu Shimizu, Ikuo Makie, Kenichi Tamaki +1 more | 2015-06-23 |
| 9031472 | Developing device with a developer conveying member having paddles connecting spiral blades at one circumferential position and image forming apparatus with such a developing device | Akifumi Yamaguchi, Takahisa Nakaue, Tamotsu Shimizu, Minoru Wada, Shizuka Okada | 2015-05-12 |
| 8958724 | Developing device and image forming apparatus | Takahisa Nakaue, Minoru Wada, Shizuka Okada, Akifumi Yamaguchi, Tamotsu Shimizu | 2015-02-17 |
| 8942600 | Developing apparatus and image forming apparatus | Takahisa Nakaue, Tamotsu Shimizu, Ikuo Makie, Kenichi Tamaki, Minoru Wada +1 more | 2015-01-27 |
| 8918037 | Developing device and image forming apparatus | — | 2014-12-23 |