Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9106797 | Content reproducing device and content reproducing method | Ryuichi Okamoto, Tohru Nakahara, Kouji Miura, Masaya Yamamoto, Masaki Igarashi | 2015-08-11 |
| 8521651 | Digital content reproducing apparatus and method thereof | Ryuichi Okamoto, Susumu Kobayashi | 2013-08-27 |
| 8260712 | Multimedia-type contents reproduction device and reproduction method, and recording medium having stored thereon data used for the same | Masaya Yamamoto, Kouji Miura, Masami Yamashita, Yasuaki Yamagishi, Naohisa Kitazato | 2012-09-04 |
| 8166555 | Content reproducing device and content preproducing method | Ryuichi Okamoto, Tohru Nakahara, Kouji Miura, Masaya Yamamoto, Masaki Igarashi | 2012-04-24 |
| 8010688 | Content use management system, content use management method, and client device | Sen'ichi Onoda, Kouji Miura, Motoji Ohmori, Hiroki Murakami | 2011-08-30 |
| 7984508 | Contents using device, and contents using method | Tohru Nakahara, Masaki Igarashi, Ryuichi Okamoto, Kouji Miura | 2011-07-19 |
| 7940935 | Content playback apparatus, content playback method, computer program, key relay apparatus, and recording medium | Tohru Nakahara, Ryuichi Okamoto, Masaya Yamamoto, Masaya Miyazaki, Masayuki Kozuka | 2011-05-10 |
| 7873987 | Content distribution system and distribution method, and content processing device and processing method | Naohisa Kitazato, Yoshiharu Dewa, Yasushi Katayama, Tatsuya Shimoji, Hideki Kagemoto +1 more | 2011-01-18 |
| 7721088 | Terminal device, server device, and content distribution system | Ryuichi Okamoto, Akio Higashi, Hiroki Murakami | 2010-05-18 |
| 7694149 | Method for judging use permission of information and content distribution system using the method | Satoshi Niwano, Kouji Miura | 2010-04-06 |
| 7620811 | Server device and program management system | Takuji Maeda, Kouji Miura, Shinji Inoue | 2009-11-17 |
| 7571488 | Rights management terminal, server apparatus and usage information collection system | Masahiro Oho, Ryuichi Okamoto, Mitsuhiro Inoue, Hiroki Murakami | 2009-08-04 |
| 7493638 | Processing terminal, receiving terminal and received data processing system | Takuji Hiramoto, Satoshi Niwano, Hiroki Murakami | 2009-02-17 |
| 7395245 | Content usage management system and server used in the system | Ryuichi Okamoto, Kouji Miura | 2008-07-01 |
| 7194091 | Content using system | Akio Higashi, Motoji Ohmori, Mitsuhiro Inoue | 2007-03-20 |
| 7159244 | Audio data playback management system and method with editing apparatus and recording medium | Hideki Matsushima, Shunji Harada, Teruto Hirota, Shinji Inoue | 2007-01-02 |
| 7096268 | Copyrighted data processing method and apparatus | Yukie Shoda, Masayuki Kozuka, Noboru Hirata | 2006-08-22 |
| 6947775 | System, method, program and storage medium for saving power | Ryuichi Okamoto, Hideki Matsushima, Masayuki Kozuka | 2005-09-20 |
| 6229535 | File acceptance display apparatus, file acceptance display method, and storage medium that records program for executing file acceptance display method | — | 2001-05-08 |
| 6009439 | Data retrieval support apparatus, data retrieval support method and medium storing data retrieval support program | Takakazu Shiomi | 1999-12-28 |
| 5614899 | Apparatus and method for compressing texts | Ryoichi Sugimura | 1997-03-25 |