Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7890012 | Process cartridge having a drum, a developing roller, and first and second frames, and electrophotographic image forming apparatus on which such process cartridge is mountable | Isao Koishi, Susumu Nittani, Chikara Imaizumi | 2011-02-15 |
| D631092 | Process cartridge | Susumu Nittani, Shinjiro Toba, Akira Yoshimura | 2011-01-18 |