Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9178702 | Revocation list generation device, revocation list generation method, and content management system | Masayuki Kozuka, Takahiro Yamaguchi, Toshihisa Nakano, Kaoru Murase, Motoji Ohmori +1 more | 2015-11-03 |
| 9166980 | Content management system, management server, memory media device and content management method | Masayuki Kozuka, Toshihisa Nakano, Takahiro Yamaguchi, Motoji Ohmori, Kaoru Murase +1 more | 2015-10-20 |
| 8997216 | Recording medium apparatus and control method for authenticating a device based on a revocation list | Masayuki Kozuka, Takahiro Yamaguchi, Toshihisa Nakano, Masataka Minami, Kaoru Murase +1 more | 2015-03-31 |