Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875077 | Image-forming machine | Kazunori Akiyama | 1989-10-17 |
| 4873549 | Device for detecting the life of an image forming process unit, opening of a seal of the unit and attachment of the unit to an image forming apparatus | Tomio Tada, Junichi Hirobe, Kazuto Hori, Yukihiro Aikawa | 1989-10-10 |
| 4829334 | Image-forming machine having a cover member for covering part of an image bearing member | Kazunori Akiyama | 1989-05-09 |