Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659628 | Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function | Michiyoshi Tachikawa, Shigeo Kurotaka, Takeshi Ukai, Yukio Sakano, Kouji Ishigaki +4 more | 1997-08-19 |
| 5652803 | Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function | Michiyoshi Tachikawa, Shigeo Kurotaka, Takeshi Ukai, Yukio Sakano, Kouji Ishigaki +4 more | 1997-07-29 |
| 5647010 | Image forming apparatus with security feature which prevents copying of specific types of documents | Mutsuo Shimomae | 1997-07-08 |