Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5652649 | Charging device and image forming apparatus | Keiko Nagayasu, Isao Doi | 1997-07-29 |
| 5606400 | Image forming apparatus with a member for shaving the surface of a photosensitive member | Keiko Nagayasu | 1997-02-25 |