Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7080255 | Secret key generation method, encryption method, and cryptographic communications method and system | Masao Kasahara, Yasuyuki Murakami | 2006-07-18 |
| 7065210 | Secret key generation method, encryption method, cryptographic communications method, common key generator, cryptographic communications system, and recording media | Masao Kasahara | 2006-06-20 |
| 6996724 | Secret key generating method, common key generating method, encryption method, cryptographic communication method and cryptographic communication system | Yasuyuki Murakami, Masao Kasahara | 2006-02-07 |
| 4833471 | Data processing apparatus | Yoshihiro Tokuume, Kaoru Kurosawa | 1989-05-23 |