Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9817985 | Content management system, content management server and management program for server, client terminal and management program for terminal, and removable media | Tatsuo Manago | 2017-11-14 |
| 9760695 | Content viewing restriction system | Tatsuo Manago | 2017-09-12 |
| 5515304 | Portable calculator for an array calculation | Masataka Ishii | 1996-05-07 |