Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6754454 | Image forming apparatus capable of discriminating a service life of detachably mounted process unit | Masahide Kinoshita, Hironobu Isobe, Ryuichi Yoshizawa | 2004-06-22 |
| 6718144 | Image forming apparatus and process unit mountable to image forming apparatus | Masahide Kinoshita, Hironobu Isobe, Ryuichi Yoshizawa | 2004-04-06 |
| 6704521 | Image forming apparatus and image forming method | Hironobu Isobe, Masahide Kinoshita, Ryuichi Yoshizawa | 2004-03-09 |