Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7958367 | Authentication system and apparatus | Tadaoki Uesugi, Takahiro Fujishiro, Takeshi Akutsu | 2011-06-07 |
| 6816969 | Digital signature generating method and digital signature verifying method | Kunihiko Miyazaki, Ryoichi Sasaki, Kazuo Takaragi, Seiichi Susaki, Takeshi Matsuki +3 more | 2004-11-09 |