Issued Patents All Time
Showing 1–25 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9477181 | Image forming apparatus and transfer power supply controlling method | Keita Hironaka, Yusuke Ozaki | 2016-10-25 |
| 9213307 | Drum cartridge with movable cleaning roller | Koji Abe | 2015-12-15 |
| 9098045 | Image forming apparatus | Yusuke Ozaki, Keita Hironaka | 2015-08-04 |
| 8942596 | Transfer device | Keita Hironaka, Yusuke Ozaki, Motoaki Mushika, Hikaru Yoshizumi | 2015-01-27 |
| 8892024 | Image forming apparatus and cartridge | Keita Hironaka, Masahiro Ishii | 2014-11-18 |
| 8855543 | Transfer device | Keita Hironaka, Yusuke Ozaki, Motoaki Mushika, Hikaru Yoshizumi | 2014-10-07 |
| 8807560 | Recording sheet guide structure and cartridge | Keita Hironaka | 2014-08-19 |
| 8805254 | Transfer apparatus | Keita Hironaka, Yusuke Ozaki | 2014-08-12 |
| 8805268 | Image forming apparatus and cartridge | Keita Hironaka | 2014-08-12 |
| 8761645 | Transfer apparatus | Keita Hironaka, Yusuke Ozaki | 2014-06-24 |
| 8350415 | Switch circuit with inductive load and capacitor | Noboru Wakatsuki, Yu Yonezawa, Naoyuki Mishima | 2013-01-08 |
| 8180239 | Image forming apparatus | Toshio Furukawa | 2012-05-15 |
| 8086140 | Photosensitive body having electrical connection arrangement | — | 2011-12-27 |
| 8073362 | Photosensitive body having electrical connection arrangement | — | 2011-12-06 |
| 8059979 | Control of a power supply for a transfer unit in an image forming apparatus | Yusuke YANAGIHARA | 2011-11-15 |
| 7933535 | Photoconductor unit and image-forming apparatus including drum-cleaning unit | — | 2011-04-26 |
| 7826779 | Developer cartridge | Soichiro Mase | 2010-11-02 |
| 7826780 | Developer cartridge | — | 2010-11-02 |
| 7674057 | Image forming apparatus | Soichiro Nishimura | 2010-03-09 |
| 7542709 | Image-forming device for suppressing recording sheet from flapping when transferring toner images thereon | Junji Uehara | 2009-06-02 |
| 7539448 | Image-forming device for suppressing vibration of guide plate and jams of recording sheet | Atsushi Miwa | 2009-05-26 |
| 7539446 | Process cartridge and image forming apparatus with flexible guide members | — | 2009-05-26 |
| 7539447 | Image-forming device for absorbing vibration of guide plate | Makoto Hattori, Hiroshi Tokuda | 2009-05-26 |
| 7447454 | Image forming apparatus and process cartridge | Soichiro Nishimura, Satoru Ishikawa | 2008-11-04 |
| 7376366 | Image-forming device with power supplying unit | — | 2008-05-20 |