Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9083512 | Recording device, and content-data playback system | Shinichi Matsukawa, Taku Kato, Akihiro Kasahara, Atsushi Kondo, Jun Sato +2 more | 2015-07-14 |
| 8929547 | Content data reproduction system and collection system of use history thereof | Shinichi Matsukawa, Akira Miura, Hiroyuki Sakamoto, Akihiro Kasahara | 2015-01-06 |
| 8887153 | Digital signature server and user terminal | Akira Miura, Akihiro Kasahara, Shinichi Matsukawa | 2014-11-11 |
| 8799682 | Content data reproduction system and recording device | Shinichi Matsukawa, Akihiro Kasahara, Akira Miura | 2014-08-05 |
| 8750519 | Data protection system, data protection method, and memory card | Akihiro Kasahara, Akira Miura | 2014-06-10 |
| 8731202 | Storage-medium processing method, a storage-medium processing apparatus, and a storage-medium processing program | Akihiro Kasahara, Akira Miura | 2014-05-20 |
| RE44888 | Solid state image sensor and video system using the same | Masafumi Umeda | 2014-05-13 |
| 8689356 | Content data delivery system, and method for delivering an encrypted content data | Akihiro Kasahara, Akira Miura | 2014-04-01 |
| 8578177 | Recording device, and content-data playback system | Shinichi Matsukawa, Taku Kato, Akihiro Kasahara, Atsushi Kondo, Jun Sato +2 more | 2013-11-05 |
| 8402457 | Content distribution method and content distribution package | Akira Miura, Akihiro Kasahara, Kazunori Nakano | 2013-03-19 |
| 8332682 | Interface control device | Kiyoshi Toshimitsu, Shinichi Matsukawa, Akihiro Kasahara | 2012-12-11 |
| 8307458 | Content data delivery system, and method for delivering an encrypted content data | Akihiro Kasahara, Akira Miura | 2012-11-06 |
| 8205083 | System and method for providing program information, and recording medium used therefor | Akira Miura, Akihiro Kasahara | 2012-06-19 |
| 8204226 | Encoding and recording apparatus, playback apparatus, and program | Shinichi Matsukawa, Akihiro Kasahara, Taku Kato | 2012-06-19 |
| 8126150 | Storage medium processing method, storage medium processing device, and program | Akihiro Kasahara, Akira Miura | 2012-02-28 |
| 7890773 | Storage medium conversion method, non-transitory computer readable storage medium and device | Akihiro Kasahara, Akira Miura, Kazunori Nakano, Shigeru Ishida | 2011-02-15 |
| 7886361 | Storage-medium processing method, storage-medium processing device, and program | Akihiro Kasahara, Akira Miura | 2011-02-08 |
| 7840960 | Content distribution method and content distribution package | Akira Miura, Akihiro Kasahara, Kazunori Nakano | 2010-11-23 |
| 7823211 | License moving apparatus and program | Shinichi Matsukawa, Akihiro Kasahara, Taku Kato, Kazunori Nakano, Akira Miura | 2010-10-26 |
| 7012635 | Solid state image sensor and video system using the same | Masafumi Umeda | 2006-03-14 |
| 6452632 | Solid state image sensor and video system using the same | Masafumi Umeda | 2002-09-17 |
| 5930818 | Information communication system which transmits main data and data for restoring the main data | Haruhiko Ito, Masana Minami, Yasuo Fukuda | 1999-07-27 |
| 5313203 | Coding apparatus and method for coding information symbol strings by assigning fixed length codes thereto | Tomoo Yamakage, Katsumi Takahashi | 1994-05-17 |
| 5227875 | System for transmitting encoded image data with quick image expansion and contraction | Toshiaki Watanabe, Yuriko Tsukahara | 1993-07-13 |