Issued Patents All Time
Showing 26–50 of 105 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7738662 | Information processing system and method | Tomoyuki Asano, Tateo Oishi, Ryuji Ishiguro, Ryuta Taki | 2010-06-15 |
| 7707410 | Information processing system and method | Ryuji Ishiguro, Tateo Oishi, Tomoyuki Asano, Atsushi Mitsuzawa | 2010-04-27 |
| 7636843 | Information transmission system and method, drive device and access method, information recording medium, device and method for producing recording medium | Tomoyuki Asano | 2009-12-22 |
| 7587597 | Data transmission system | Tomoyuki Asano, Teruyoshi Komuro, Ryuji Ishiguro | 2009-09-08 |
| 7505599 | Information processing system and method for managing encrypted data with tag information | Ryuji Ishiguro, Tateo Oishi, Tomoyuki Asano, Atsushi Mitsuzawa | 2009-03-17 |
| 7487552 | Method and apparatus for ciphering playback mode information for recording on record medium | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Shigeyuki Yoneyama | 2009-02-03 |
| 7443984 | Information processing system and method for distributing encrypted message data | Ryuji Ishiguro, Tateo Oishi, Tomoyuki Asano, Atsushi Mitsuzawa | 2008-10-28 |
| 7428369 | Signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus | Yoichiro Sako, Isao Kawashima, Akira Kurihara, Shozo Masuda | 2008-09-23 |
| 7412606 | Copy protection using detailed copy control information | Tomoyuki Asano, Teruyoshi Komuro, Ichiro Hamada | 2008-08-12 |
| 7405731 | Information processing system and method | Tomoyuki Asano, Tateo Oishi, Ryuji Ishiguro, Ryuta Taki | 2008-07-29 |
| 7401228 | Method for transmitting data, apparatus for recording data, medium for recording data, and apparatus for reproducing data | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Hideo Owa | 2008-07-15 |
| 7401231 | Information recording/playback device and method | Ryuta Taki, Tomoyuki Asano, Tateo Oishi | 2008-07-15 |
| 7398251 | Method and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Hideo Owa | 2008-07-08 |
| 7380132 | Data recording method and apparatus, data record medium and data reproducing method and apparatus | Yoichiro Sako, Isao Kawashima, Akira Kurihara, Hideo Owa | 2008-05-27 |
| 7376626 | Information recording medium, information processing apparatus, information processing method, and computer program | Norihiro Nagai, Akira Kurihara, Yoshimichi Kitaya, Naomi Urano, Masao Morita +1 more | 2008-05-20 |
| 7366700 | Method and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Hideo Owa | 2008-04-29 |
| 7346170 | Information processing system and method | Tomoyuki Asano, Tateo Oishi, Ryuji Ishiguro, Ryuta Taki | 2008-03-18 |
| 7346169 | Information processing device and method | Tomoyuki Asano, Ryuji Ishiguro, Atsushi Mitsuzawa, Tateo Oishi | 2008-03-18 |
| 7321878 | Method and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Hideo Owa | 2008-01-22 |
| 7319752 | Information recording device, information playback device, information recording method, information playback method, and information recording medium and program providing medium used therewith | Tomoyuki Asano | 2008-01-15 |
| 7310731 | Contents processing system | Yoshihito Ishibashi, Tateo Oishi, Tomoyuki Asano | 2007-12-18 |
| 7298842 | Utilizing a key for enciphering and deciphering that is modified during enciphering and deciphering | Ryuji Ishiguro, Yoshio Osakabe, Makoto Sato, Hisato Shima, Tomoyuki Asano | 2007-11-20 |
| 7296153 | Data transmission system | Tomoyuki Asano, Teruyoshi Komuro, Ryuji Ishiguro | 2007-11-13 |
| 7283633 | Information recording and/or reproducing method and information recording and/or reproducing device | Tomoyuki Asano, Ryuji Ishiguro, Atsushi Mitsuzawa, Tateo Oishi | 2007-10-16 |
| 7269257 | System and method for processing information using encryption key block | Yoshimichi Kitaya, Ryuji Ishiguro, Tomoyuki Asano | 2007-09-11 |