Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7826620 | Information processor, information processing method, and computer program | Kenjiro Ueda, Katsumi Muramatsu, Yoshikazu Takashima | 2010-11-02 |
| 7746738 | Data processing method, information recording medium manufacturing management system, recording data generation apparatus and method, and computer program | Kenjiro Ueda, Yoshitomo Osawa, Katsumi Muramatsu | 2010-06-29 |
| 7738662 | Information processing system and method | Tomoyuki Asano, Yoshitomo Osawa, Ryuji Ishiguro, Ryuta Taki | 2010-06-15 |
| 7707410 | Information processing system and method | Ryuji Ishiguro, Yoshitomo Osawa, Tomoyuki Asano, Atsushi Mitsuzawa | 2010-04-27 |
| 7673153 | Data processing method, apparatus and system for encrypted data transfer | Takumi Okaue, Nobuyuki Kihara, Teppei Yokota | 2010-03-02 |
| 7661000 | Information processing device, information recording medium and information processing method, and computer program | Kenjiro Ueda, Katsumi Muramatsu, Motoki Kato | 2010-02-09 |
| 7505599 | Information processing system and method for managing encrypted data with tag information | Ryuji Ishiguro, Yoshitomo Osawa, Tomoyuki Asano, Atsushi Mitsuzawa | 2009-03-17 |
| 7443984 | Information processing system and method for distributing encrypted message data | Ryuji Ishiguro, Yoshitomo Osawa, Tomoyuki Asano, Atsushi Mitsuzawa | 2008-10-28 |
| 7405731 | Information processing system and method | Tomoyuki Asano, Yoshitomo Osawa, Ryuji Ishiguro, Ryuta Taki | 2008-07-29 |
| 7401231 | Information recording/playback device and method | Ryuta Taki, Tomoyuki Asano, Yoshitomo Osawa | 2008-07-15 |
| 7353541 | Systems and methods for content distribution using one or more distribution keys | Yoshihito Ishibashi, Akihiro Muto, Jun Kitahara, Taizou Shirai | 2008-04-01 |
| 7346170 | Information processing system and method | Tomoyuki Asano, Yoshitomo Osawa, Ryuji Ishiguro, Ryuta Taki | 2008-03-18 |
| 7346169 | Information processing device and method | Tomoyuki Asano, Yoshitomo Osawa, Ryuji Ishiguro, Atsushi Mitsuzawa | 2008-03-18 |
| 7310731 | Contents processing system | Yoshihito Ishibashi, Tomoyuki Asano, Yoshitomo Osawa | 2007-12-18 |
| 7283633 | Information recording and/or reproducing method and information recording and/or reproducing device | Tomoyuki Asano, Yoshitomo Osawa, Ryuji Ishiguro, Atsushi Mitsuzawa | 2007-10-16 |
| 7225339 | Information recording/playback apparatus and method | Tomoyuki Asano, Yoshitomo Osawa, Ryuji Ishiguro, Atsushi Mitsuzawa | 2007-05-29 |
| 7167564 | Information processing system and method | Tomoyuki Asano, Yoshitomo Osawa, Ryuji Ishiguro, Ryuta Taki | 2007-01-23 |
| 7099846 | Apparatus and system for providing fee-based content | Yoshihito Ishibashi, Shinako Matsuyama, Akihiro Muto | 2006-08-29 |
| 7099479 | Information transmission system, transmitter, and transmission method as well as information reception system, receiver and reception method | Yoshihito Ishibashi, Shinako Matsuyama, Tomoyuki Asano, Akihiro Muto, Jun Kitahara | 2006-08-29 |
| 7093128 | Information recording/reproducing apparatus and method | Tomoyuki Asano, Yoshitomo Osawa, Ryuji Ishiguro, Atsushi Mitsuzawa, Ryuta Taki | 2006-08-15 |
| 7092909 | Information processing apparatus and method, and distribution medium | Akihiro Muto, Taizo Shirai | 2006-08-15 |
| 6911974 | Information processing system and method | Tomoyuki Asano, Yoshitomo Osawa, Ryuji Ishiguro, Ryuta Taki | 2005-06-28 |
| 6834346 | Content processing system | Yoshihito Ishibashi, Tomoyuki Asano, Yoshitomo Osawa | 2004-12-21 |
| 6799273 | Data processing system and method for mutual identification between apparatuses | Tomoyuki Asano, Nobuyuki Kihara, Teppei Yokota | 2004-09-28 |
| 6792539 | Processing method and apparatus for encrypted data transfer | Ryuji Ishiguro, Takumi Okaue, Nobuyuki Kihara, Teppei Yokota | 2004-09-14 |