Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9400448 | Image forming apparatus with a surface of a development roller and shell layers of toner particles being formed from a thermosetting resin | Yasushi Imanishi | 2016-07-26 |
| 9229356 | Image forming apparatus employing touchdown developing method | — | 2016-01-05 |
| 8923723 | Developing device and image forming apparatus comprising same | Hiroyuki Hirakawa, Eiji Tatsumi | 2014-12-30 |
| 8831451 | Image forming apparatus | — | 2014-09-09 |
| 8824937 | Developing device and image forming apparatus with layer thickness restricting member to restrict thickness of developer on magnetic roller | — | 2014-09-02 |
| 7853171 | Developing apparatus and image forming apparatus provided therewith | — | 2010-12-14 |
| 6174639 | Positive charging color toner | Yoshitake Shimizu, Takahiro Ishihara, Hiroshi Shimoyama, Toyotsune Inoue, Takashi Nishino +3 more | 2001-01-16 |
| 6096467 | Positive charging color toner | Yoshitake Shimizu, Takahiro Ishihara, Hiroshi Shimoyama, Toyotsune Inoue, Takashi Nishino +3 more | 2000-08-01 |