Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8995660 | Cryptographic system, cryptographic communication method, encryption apparatus, key generation apparatus, decryption apparatus, content server, program, and storage medium | Tetsutaro Kobayashi, Kaku Takeuchi | 2015-03-31 |
| 8964982 | Cryptographic system, cryptographic communication method, encryption apparatus, key generation apparatus, decryption apparatus, content server, program, and storage medium | Kaku Takeuchi, Tetsutaro Kobayashi | 2015-02-24 |