Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7770009 | Digital signing method | Kunihiko Miyazaki, Ryoichi Sasaki, Kazuo Takaragi, Seiichi Susaki, Toshiyuki Moritsu +2 more | 2010-08-03 |
| 7526645 | Electronic document authenticity assurance method and electronic document disclosure system | Kunihiko Miyazaki, Tsutomu Matsumoto, Ryoichi Sasaki, Hiroshi Yoshiura, Hirokazu Aoshima +3 more | 2009-04-28 |
| 7305558 | Digital signing method | Kunihiko Miyazaki, Ryoichi Sasaki, Kazuo Takaragi, Seiichi Susaki, Toshiyuki Moritsu +2 more | 2007-12-04 |
| 7200682 | Time stamp generating system | Kunihiko Miyazaki, Seiichi Susaki, Kazuo Takaragi, Hiroshi Yoshiura, Takeshi Matsuki +3 more | 2007-04-03 |
| 6816969 | Digital signature generating method and digital signature verifying method | Kunihiko Miyazaki, Ryoichi Sasaki, Kazuo Takaragi, Seiichi Susaki, Hisanori Mishima +3 more | 2004-11-09 |
| 6775775 | Method of physical individual authentication and system using the same | Hiroshi Yoshiura, Ryoichi Sasaki | 2004-08-10 |