Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6658224 | Process cartridge and electrophotographic image forming apparatus | Akiyoshi Yokoi, Kazushi Watanabe, Toru Oguma | 2003-12-02 |
| 6654567 | Process cartridge detachable from electrophotographic image forming apparatus having wireless communication | Kazushi Watanabe, Yoshihiro Ito | 2003-11-25 |
| 6625413 | Developing device, process cartridge and electrophotographic image forming apparatus | Toru Oguma, Kazushi Watanabe, Akiyoshi Yokoi | 2003-09-23 |
| D478615 | Image forming apparatus | Toru Oguma, Akiyoshi Yokoi, Noriyuki Komatsu | 2003-08-19 |
| 6594454 | Electric contact member and developing device, process cartridge, and electrophotographic image-forming apparatus using the electric contact member | Toru Oguma, Kazushi Watanabe | 2003-07-15 |