Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6272225 | Key recovery condition encryption and decryption apparatuses | Hiroshi Miyauchi, Kazue Sako, Masashi Yamazaki, Seiichi Domyo, Hiroyoshi Tsuchiya +4 more | 2001-08-07 |
| 6266421 | Key recovery system and key recovery method | Seiichi Domyo, Hiroyoshi Tsuchiya, Seiko Kanno, Ichirou Morita, Yasutsugu Kuroda +4 more | 2001-07-24 |
| 6185308 | Key recovery system | Ichirou Morita, Yasutsugu Kuroda, Naoya Torii, Masashi Yamazaki, Hiroshi Miyauchi +4 more | 2001-02-06 |