Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12034850 | Encryption device, decryption device, encryption method, decryption method, and computer program products | — | 2024-07-09 |
| 11288985 | Encryption device, decryption device, encryption method, decryption method, encryption program product, and decryption program product | — | 2022-03-29 |
| 9413729 | Symmetric encryption apparatus and storage medium, and symmetric decryption apparatus and storage medium | Yuichi Komano, Yasuhiro Goto | 2016-08-09 |
| 8832438 | Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatus | Yasuhiro Goto | 2014-09-09 |
| 8458471 | Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatus | Yasuhiro Goto | 2013-06-04 |
| 8311215 | Encryption apparatus, decryption apparatus, key generation apparatus, and storage medium | Yasuhiro Goto | 2012-11-13 |
| 8266061 | Apparatus and method for digital content editing | Satoshi Ito, Hideyuki Aisu, Tooru Kamibayashi, Shinichiro Hamada | 2012-09-11 |
| 8065416 | Playlist composition apparatus, copyright management apparatus and view terminal apparatus | Toshiyuki Kito, Hideki Tsutsui, Yoshihiro Ohmori | 2011-11-22 |
| 8046582 | Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatus | Yasuhiro Goto | 2011-10-25 |
| 7836304 | Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatus | Yasuhiro Goto | 2010-11-16 |
| 7787623 | Key generating apparatus, program, and method | Yasuhiro Goto | 2010-08-31 |
| 7773747 | Encryption apparatus, decryption apparatus, and method | Yasuhiro Goto | 2010-08-10 |
| 7747871 | Information recording apparatus, information reproducing apparatus, and information distribution system | Toru Kambayashi, Shuichi Tsujimoto, Kazuo Sumita, Hideki Hirakawa, Toshihiro Sugaya | 2010-06-29 |
| 7733844 | Packet filtering apparatus, packet filtering method, and computer program product | Toshiyuki Kito | 2010-06-08 |
| 7688973 | Encryption apparatus, decryption apparatus, key generation apparatus, program, and method | Yasuhiro Goto | 2010-03-30 |
| 7672905 | Apparatus and method for rendering digital content | Satoshi Ito, Hideyuki Aisu, Tooru Kamibayashi, Shinichiro Hamada | 2010-03-02 |
| 7490068 | Apparatus and method for rendering digital content | Satoshi Ito, Hideyuki Aisu, Tooru Kamibayashi, Shinichiro Hamada | 2009-02-10 |
| 7450596 | Scheme for realizing communications through external network from contents processing device connected to local network in home environment | Takeshi Saito, Mikio Hashimoto, Toru Kambayashi | 2008-11-11 |
| 7389272 | Information recording device and information reproducing device | Toru Kambayashi, Yutaka Handa, Yoshihiro Ohmori | 2008-06-17 |
| 7363276 | Broadcast receiving method and apparatus and information distributing method and apparatus | — | 2008-04-22 |
| 7343495 | Information recording apparatus, information reproducing apparatus, and information distribution system | Toru Kambayashi, Shuichi Tsujimoto, Kazuo Sumita, Hideki Hirakawa, Toshihiro Sugaya | 2008-03-11 |
| 7127431 | Information recording device and information reproducing device | Toru Kambayashi, Yutaka Handa, Yoshihiro Ohmori | 2006-10-24 |
| 7072865 | Broadcast receiving method and apparatus and information distributing method and apparatus | — | 2006-07-04 |
| 7023862 | Scheme for realizing communications through external network from contents processing device connected to local network in home environment | Takeshi Saito, Mikio Hashimoto, Toru Kambayashi | 2006-04-04 |
| 6941283 | Information recording device and information reproducing device | Toru Kambayashi, Yutaka Handa, Yoshihiro Ohmori | 2005-09-06 |