Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6296978 | Electrophotographic photosensitive member, a process-cartridge inclusive thereof, and an image forming apparatus | Itaru Takaya, Kazuo Yoshinaga, Yuko Sato, Katsumi Aoki, Keiko Hiraoka | 2001-10-02 |
| 6258498 | Electrophotographic photosensitive member, and process cartridge and electrophotographic photosensitive member | Takeshi Ikeda, Tetsuro Fukui, Takanori Matsuda | 2001-07-10 |
| 5910386 | Electrophotographic photosensitive member, and electrophotographic apparatus and process cartridge employing the same | Kazuo Yoshinaga, Shunichiro Nishida, Keiko Hiraoka, Nobuo Kushibiki, Hideki Kobayashi +2 more | 1999-06-08 |