Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680453 | Software delivery system, center device, relaying device and user terminal device | Makoto Yoshioka | 1997-10-21 |
| 5623548 | Transformation pattern generating device and encryption function device | Naoya Torii, Noboru Iwayama, Kenichi Utsumi | 1997-04-22 |