Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D303541 | Developing device for electrophotographic copier | — | 1989-09-19 |
| D299926 | Electrophotographic copier | Yoshie Katada | 1989-02-21 |
| D299927 | Electrophotographic copier | — | 1989-02-21 |