Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887130 | Electrostatic latent image developing apparatus | Kouji Matsushita, Hidetoshi Kawabata | 1989-12-12 |
| 4878082 | Automatic image density control apparatus | Kouji Matsushita, Keigo Tange | 1989-10-31 |
| 4800144 | Laminated type photosensitive member for electrophotography comprising a substrate of aluminate | Hideaki Ueda, Katsutoshi Konishi | 1989-01-24 |