Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6576388 | Multilayer electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using the photoreceptor | Yohta Sakon, Tatsuya Niimi, Narihito Kojima | 2003-06-10 |
| 6567637 | Apparatus and method for replenishing a developing device with toner while suppressing toner remaining | Takaaki Yanagisawa, Masumi Sato, Kazuhiko Yuuki, Yoshinori Ozawa, Yoshi Hattori +4 more | 2003-05-20 |
| 6560438 | Method for removing deposit from image substrate and image formation apparatus using the method | — | 2003-05-06 |
| 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 | Masumi Sato, Hitoshi Ishibashi, Hiroshi Yoshinaga, Yukiko Iwasaki | 2003-01-07 |