Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870459 | Copying machine | Masazumi Ito, Keiji Kusumoto, Takashi Noda | 1989-09-26 |
| 4801972 | Image forming apparatus equipped with a plurality of developing units | Keiji Kusumoto | 1989-01-31 |
| 4796055 | Recording apparatus incorporating manual paper feeder | Masakazu Sogame, Tsuneo Kitagawa | 1989-01-03 |