Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10199134 | Electrically conductive rubber composition, and developing roller | Yoshihisa Mizumoto | 2019-02-05 |
| 9639025 | Semiconductive roller | Kei Tajima, Yoshihisa Mizumoto | 2017-05-02 |
| 9465315 | Semiconductive roller | Yoshihisa Mizumoto, Kenichi Kuroda, Akihiko Kawatani | 2016-10-11 |
| 9443637 | Semiconductive roller | Yoshihisa Mizumoto, Kenichi Kuroda | 2016-09-13 |
| 9064617 | Electrically conductive rubber composition, developing roller, and image forming apparatus | Yoshihisa Mizumoto, Kei Tajima | 2015-06-23 |
| 9011306 | Semiconductive roller | Yoshihisa Mizumoto | 2015-04-21 |
| 8983347 | Developing roller | Kenichi Kuroda, Akihiko Kawatani | 2015-03-17 |
| 8882646 | Semiconductive roller, charging roller and electrophotographic apparatus | Kei Tajima, Kiyotaka Okuda | 2014-11-11 |
| 8744324 | Semiconductive roller, toner transport roller and electrophotographic apparatus | Yoshihisa Mizumoto, Akihiko Kawatani, Kenichi Kuroda | 2014-06-03 |
| 8277692 | Semiconductive rubber composition and semiconductive rubber roller employing the same | Yoshihisa Mizumoto, Kei Tajima, Noriaki Hitomi | 2012-10-02 |
| 8211000 | Conductive roller | Takeshi Ishimaru, Noriaki Hitomi | 2012-07-03 |
| 8023869 | Conductive roller which is mounted on an image-forming mechanism of an electrophotographic apparatus | Yoshihisa Mizumoto, Masakazu Tanaka, Hideyuki Okuyama, Noriaki Hitomi | 2011-09-20 |