Issued Patents 2005
Showing 1–1 of 1 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, Kaoru Yokota, Motoji Ohmori, Fumihiko Sano | 2005-07-12 |