Issued Patents All Time
Showing 1–25 of 105 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12375456 | Information processing apparatus, mobile apparatus, and communication system | Takashi Miyamoto, Hiroo Takahashi, Toru Akishita | 2025-07-29 |
| 9495998 | Information recording and/or reproducing apparatus | Tomoyuki Asano, Motoki Kato | 2016-11-15 |
| 9467287 | Enciphering apparatus and method, deciphering apparatus and method as well as information processing apparatus and method | Ryuji Ishiguro, Yoshio Osakabe, Makoto Sato, Hisato Shima, Tomoyuki Asano | 2016-10-11 |
| 9390254 | Data transmitting system and method, drive unit, access method, data recording medium, recording medium producing apparatus and method | Tomoyuki Asano | 2016-07-12 |
| 9049009 | Data transmission system | Tomoyuki Asano, Teruyoshi Komuro, Ryuji Ishiguro | 2015-06-02 |
| 9037867 | Information processing apparatus, information storage medium, content management system, data processing method, and computer program | Kenjiro Ueda, Tateo Oishi, Katsumi Muramatsu, Motoki Kato, Yoshikazu Takashima | 2015-05-19 |
| RE45473 | Copy protection using detailed copy control information | Tomoyuki Asano, Teruyoshi Komuro, Ichiro Hamada | 2015-04-14 |
| 8923511 | Enciphering apparatus and method, deciphering apparatus and method as well as information processing apparatus and method | Ryuji Ishiguro, Yoshio Osakabe, Makoto Sato, Hisato Shima, Tomoyuki Asano | 2014-12-30 |
| 8645710 | Information processing apparatus, information storage medium, content management system, data processing method, and computer program | Kenjiro Ueda, Tateo Oishi, Katsumi Muramatsu, Motoki Kato, Yoshikazu Takashima | 2014-02-04 |
| 8594325 | Enciphering apparatus and method, deciphering apparatus and method as well as information processing apparatus and method | Ryuji Ishiguro, Yoshio Osakabe, Makoto Sato, Hisato Shima, Tomoyuki Asano | 2013-11-26 |
| 8474049 | Verification method, information processing device, recording medium, verification system, certification program, and verification program | Senichi Onoda, Masaya Yamamoto, Toshihisa Nakano, Kaoru Murase, Masayuki Kozuka +4 more | 2013-06-25 |
| 8458458 | Data transmitting system and method, drive unit, access method, data recording medium, recording medium producing apparatus and method | Tomoyuki Asano | 2013-06-04 |
| 8422675 | Data transmission system | Tomoyuki Asano, Teruyoshi Komuro, Ryuji Ishiguro | 2013-04-16 |
| 8301014 | Signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus | Yoichiro Sako, Isao Kawashima, Akira Kurihara, Shozo Masuda | 2012-10-30 |
| 8281362 | Verification method, verification program, recording medium, information processor, and integrated circuit | Minehisa Nagata, Senichi Onoda, Toshihisa Nakano, Masaya Yamamoto, Kaoru Murase +6 more | 2012-10-02 |
| 8170206 | Enciphering apparatus and method, deciphering apparatus and method as well as information processing apparatus and method | Ryuji Ishiguro, Yoshio Osakabe, Makoto Sato, Hisato Shima, Tomoyuki Asano | 2012-05-01 |
| 8127148 | Information recording device, information playback device, information recording method, information playback method, and information recording medium and program providing medium used therewith | Tomoyuki Asano | 2012-02-28 |
| 8112811 | Information playing/reproducing apparatus and method | Tomoyuki Asano, Motoki Kato | 2012-02-07 |
| 8005214 | Data transmission system | Tomoyuki Asano, Teruyoshi Komuro, Ryuji Ishiguro | 2011-08-23 |
| 7957537 | Information processing system and method using encryption key block | Yoshimichi Kitaya, Ryuji Ishiguro, Tomoyuki Asano | 2011-06-07 |
| 7882564 | Information recording/playback apparatus and method | Tomoyuki Asano, Motoki Kato | 2011-02-01 |
| 7860248 | Enciphering apparatus and method, deciphering apparatus and method as well as information processing apparatus and method | Ryuji Ishiguro, Yoshio Osakabe, Makoto Sato, Hisato Shima, Tomoyuki Asano | 2010-12-28 |
| 7761926 | Information recording/playback system | Tomoyuki Asano | 2010-07-20 |
| 7746738 | Data processing method, information recording medium manufacturing management system, recording data generation apparatus and method, and computer program | Kenjiro Ueda, Tateo Oishi, Katsumi Muramatsu | 2010-06-29 |
| 7739495 | Data transmitting system and method, drive unit, access method, data recording medium, recording medium producing apparatus and method | Tomoyuki Asano | 2010-06-15 |