Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7574605 | Method of managing digital signature, apparatus for processing digital signature, and a computer readable medium for recording program of managing digital signature | Kouichi Tanimoto, Shinji Itoh, Kunihiko Miyazaki, Katsuko Nishioka | 2009-08-11 |
| 7441115 | Method for verifying a digital signature | Kunihiko Miyazaki, Shinji Itoh, Kouichi Tanimoto, Hiroshi Yoshiura | 2008-10-21 |
| 7299197 | Electronic mail system | Toshikazu Takigawa | 2007-11-20 |
| 7206939 | File storage system and a NAS server | Kunihiko Miyazaki, Shinji Itoh, Yoshiharu Bessho | 2007-04-17 |