Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7649991 | Method of a public key encryption and a cypher communication both secure against a chosen-ciphertext attack | Mototsugu Nishioka, Hisayoshi Satoh | 2010-01-19 |
| 7457442 | Authentication system by fingerprint | Masahiro Mimura, Takuo Ishizuka | 2008-11-25 |
| 7164765 | Method of a public key encryption and a cypher communication both secure against a chosen-ciphertext attack | Mototsugu Nishioka, Hisayoshi Satoh | 2007-01-16 |
| 7162058 | Authentication system by fingerprint | Masahiro Mimura, Takuo Ishizuka | 2007-01-09 |
| 6747564 | Security guarantee method and system | Masahiro Mimura, Yoshiaki Isobe, Masaji Aoki | 2004-06-08 |
| 5193173 | Method and device for storing data subjected to dispersion processing | — | 1993-03-09 |