Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496930 | Message receiving apparatus and message transmitting apparatus | Takatoshi Ono, Takeshi Saijo, Syunji Harada, Yasuo Okumura | 2002-12-17 |
| 6459792 | Block cipher using key data merged with an intermediate block generated from a previous block | Motoji Ohmori, Natsume Matsuzaki, Masakatsu Maruyama | 2002-10-01 |
| 6359986 | Encryption system capable of specifying a type of an encrytion device that produced a distribution medium | — | 2002-03-19 |