Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6891950 | Extended key generator, encryption/decryption unit, extended key generation method, and storage medium | Kaoru Yokota, Tsutomu Sekibe, Makoto Tatebayashi, Fumihiko Sano, Shinichi Kawamura | 2005-05-10 |