Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6654568 | Image forming apparatus, image bearing member life detecting method, and process cartridge detachably attachable to image forming apparatus | — | 2003-11-25 |
| 6577823 | Method of detecting life of image bearing member, image forming apparatus and cartridge | Yasuyuki Ishii | 2003-06-10 |
| 6549733 | Image forming apparatus, image bearing member life detecting method, and process cartridge detachably attachable to image forming apparatus | — | 2003-04-15 |