Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10551763 | Image forming apparatus and cartridge having a charging roller with a surface layer including projections | Michihiro Yoshida, Takeshi Fujino, Kota Mori, Yuya Nagatomo | 2020-02-04 |
| 10310402 | Image forming apparatus and cartridge having charging roller | Kota Mori, Yuya Nagatomo, Michihiro Yoshida, Takeshi Fujino | 2019-06-04 |
| 10281833 | Image forming apparatus | — | 2019-05-07 |
| 10268132 | Charging roller, cartridge, image forming apparatus and manufacturing method of the charging roller | Takeshi Fujino, Kota Mori, Yuya Nagatomo, Michihiro Yoshida | 2019-04-23 |
| 8855525 | Developing apparatus, and image forming apparatus | Kazufumi Muto | 2014-10-07 |
| 8831480 | Image forming apparatus | Shota Soda, Michihiro Yoshida | 2014-09-09 |
| 8737881 | Image forming apparatus having toner charging members | Shota Soda, Michihiro Yoshida | 2014-05-27 |
| 8620185 | Image forming apparatus featuring phase relationship adjustment between image bearing members | — | 2013-12-31 |
| 8620186 | Image forming apparatus | Michihiro Yoshida, Shota Soda | 2013-12-31 |
| 8600265 | Image forming apparatus | Michihiro Yoshida | 2013-12-03 |
| 8315541 | Image forming apparatus using cleaner-less system | — | 2012-11-20 |
| 7903999 | Image forming apparatus | Kazufumi Muto | 2011-03-08 |
| 7620340 | Image forming apparatus with cleaning blade lubrication | — | 2009-11-17 |
| 7596331 | Image forming apparatus | — | 2009-09-29 |
| 7277653 | Image forming apparatus with cleaning blade lubrication | — | 2007-10-02 |
| 6701119 | Image forming apparatus including opposed insulating and conducting transfer material guide members to prevent null transfer | Satoshi Tomiki | 2004-03-02 |