Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6917684 | Method of encryption and decryption with block number dependant key sets, each set having a different number of keys | Makoto Tatebayashi, Motoji Ohmori, Fumihiko Sano, Naoki Endo | 2005-07-12 |
| 6891950 | Extended key generator, encryption/decryption unit, extended key generation method, and storage medium | Motoji Oomori, Tsutomu Sekibe, Makoto Tatebayashi, Fumihiko Sano, Shinichi Kawamura | 2005-05-10 |