Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826380 | Information storing medium, unit, process cartridge, developing cartridge, and electrophotographic image forming apparatus | Toshiyuki Karakama, Tatsuya Shiratori, Shinji Goto, Shinya Noda, Fumito Nonaka +1 more | 2004-11-30 |
| 6782219 | Cartridge and electrophotographic image forming apparatus | Yasufumi Yoshino, Koji Yamaguchi | 2004-08-24 |
| 6754454 | Image forming apparatus capable of discriminating a service life of detachably mounted process unit | Koichi Hiroshima, Masahide Kinoshita, Ryuichi Yoshizawa | 2004-06-22 |
| 6718144 | Image forming apparatus and process unit mountable to image forming apparatus | Koichi Hiroshima, Masahide Kinoshita, Ryuichi Yoshizawa | 2004-04-06 |
| 6704521 | Image forming apparatus and image forming method | Masahide Kinoshita, Koichi Hiroshima, Ryuichi Yoshizawa | 2004-03-09 |