Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691807 | Process cartridge and image forming apparatus with indicating means | Mahito Yoshioka | 1997-11-25 |
| 5678140 | Reconditioning method for charging roller | Hiroshi Inoue | 1997-10-14 |