Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673428 | Information collection system connected to a communication network | — | 1997-09-30 |
| 5664126 | Human interface system for communicating networked users | Etsuo Ito, Toshio Okamoto, Kazuo Sumita, Shuichi Tsujimoto | 1997-09-02 |
| 5649193 | Document detection system using detection result presentation for facilitating user's comprehension | Kazuo Sumita, Seiji Miike, Yumi Mizutani | 1997-07-15 |