Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642199 | Copier having a security function | Takeshi Ukai | 1997-06-24 |
| 5602939 | Specific document discriminating apparatus and image reading apparatus using it therein | Takeshi Ukai | 1997-02-11 |