Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782227 | Transfer device for setting a suitable recording medium adsorbing bias, and an image-forming apparatus including the transfer device | Atsushi Takehara | 2004-08-24 |
| 6778797 | Charging roller having elastic member | Masumi Sato, Yukiko Iwasaki, Hiroshi Yoshinaga, Takatsugu Fujishiro, Masami Hiramatsu | 2004-08-17 |
| 6546219 | Method and apparatus for performing a charging process on an image carrying device | Masumi Sato, Hiroshi Yoshinaga, Yukiko Iwasaki, Takatsugu Fujishiro, Masami Hiramatsu +1 more | 2003-04-08 |
| 6519428 | Image forming apparatus having mixed toner consumption mode | Megumi Ohtoshi, Masumi Sato, Yoshinori Ozawa | 2003-02-11 |
| 6505022 | Image forming apparatus having protective layer on the surface of image bearing member to avoid adhesion of film of additives to image bearing member | Akio Kosuge, Masumi Sato, Hiroshi Yoshinaga, Yukiko Iwasaki | 2003-01-07 |
| 6470161 | Apparatus for minimizing toner contamination on an image formation member | Takatsugu Fujishiro, Masami Hiramatsu, Masumi Sato, Hiroshi Yosinaga, Yukiko Iwasaki | 2002-10-22 |
| 6360065 | Method and apparatus for image forming capable of effectively generating a consistent charge potential | Masumi Satou, Megumi Ohtoshi | 2002-03-19 |
| 5659843 | Image transferring device for image forming equipment | Satoshi Takano, Itaru Matsuda, Yuko Harasawa, Masumi Sato, Megumi Otoshi | 1997-08-19 |
| 5623330 | Image forming apparatus | — | 1997-04-22 |
| 5438401 | Multicolor image forming method and apparatus therefor | Hisao Murayama | 1995-08-01 |