Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5544245 | Mutual authentication/cipher key delivery system | — | 1996-08-06 |
| 5345506 | Mutual authentication/cipher key distribution system | Masayoshi Oohashi, Keiichiro Koga | 1994-09-06 |