Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7100044 | Public key certificate using system, public key certificate using method, information processing apparatus, and program providing medium | Hideaki Watanabe, Yoshihito Ishibashi, Ichiro Futamura, Masashi Kon | 2006-08-29 |
| 7096363 | Person identification certificate link system, information processing apparatus, information processing method, and program providing medium | Masashi Kon, Yoshihito Ishibashi, Ichiro Futamura, Hideaki Watanabe | 2006-08-22 |
| 7059516 | Person authentication system, person authentication method, information processing apparatus, and program providing medium | Yoshihito Ishibashi, Ichiro Futamura, Masashi Kon, Hideaki Watanabe | 2006-06-13 |
| 6990684 | Person authentication system, person authentication method and program providing medium | Ichiro Futamura, Yoshihito Ishibashi, Masashi Kon, Hideaki Watanabe | 2006-01-24 |
| 6990583 | Public-key-encryption data-communication system and data-communication-system forming method | Yoshihito Ishibashi, Ichiro Futamura, Masashi Kon, Hideaki Watanabe | 2006-01-24 |
| 6766306 | Electronic cash system | — | 2004-07-20 |
| 6574611 | Information processing apparatus and method, information management apparatus and method, and information providing medium | Yoshihito Ishibashi | 2003-06-03 |