Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5664126 | Human interface system for communicating networked users | Hideki Hirakawa, Etsuo Ito, Toshio Okamoto, Shuichi Tsujimoto | 1997-09-02 |
| 5649193 | Document detection system using detection result presentation for facilitating user's comprehension | Hideki Hirakawa, Seiji Miike, Yumi Mizutani | 1997-07-15 |