Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6842523 | Encryption apparatus, cryptographic communication system, key recovery system, and storage medium | Akito Niwa, Shinichi Kawamura, Megumi Aoki, Toshiaki Saisho, Tatsuya Ishihara +1 more | 2005-01-11 |