Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D302440 | Copying machine | Ritsuko Makihara, Yoichi Tatsuta | 1989-07-25 |
| D301588 | Cash register | — | 1989-06-13 |
| D299653 | Copying machine | Ritsuko Makihara | 1989-01-31 |
| D299355 | Copying machine | Hiroshi Nishibori | 1989-01-10 |