Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5530739 | Mail center management system | Akihiro Okada | 1996-06-25 |
| 5208850 | Multi-media information service center and multi-media communication system | — | 1993-05-04 |
| 5146488 | Multi-media response control system | Akihiro Okada, Katsumi Tanaka | 1992-09-08 |