Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11061587 | Memory system switching between a locked and unlocked state and memory control method | — | 2021-07-13 |
| 9449193 | Information processing apparatus | Yasufumi Tsumagari, Yuji Nagai | 2016-09-20 |
| 9418022 | Storage system in which information is prevented | Yuji Nagai, Yasufumi Tsumagari, Hiroyuki Sakamoto, Hideki Mimura | 2016-08-16 |
| 9355045 | Memory device for converting data received from controller controlling reading and writing of data | Toru Kambayashi, Akihiro Kasahara, Hiroyuki Sakamoto, Taku Kato, Hiroshi Sukegawa +3 more | 2016-05-31 |
| 9124432 | Host device and authentication method for host device | Yuji Nagai, Taku Kato, Tatsuyuki Matsushita, Yasufumi Tsumagari | 2015-09-01 |
| 9100187 | Authenticator | Taku Kato, Tatsuyuki Matsushita, Yuji Nagai | 2015-08-04 |
| 9083512 | Recording device, and content-data playback system | Taku Kato, Akihiro Kasahara, Hiroshi Suu, Atsushi Kondo, Jun Sato +2 more | 2015-07-14 |
| 9052836 | Memory system in which extension function can easily be set | Akihisa Fujimoto | 2015-06-09 |
| 9053062 | Memory chip for converting data received from controller controlling reading and writing of data | Toru Kambayashi, Akihiro Kasahara, Hiroyuki Sakamoto, Taku Kato, Hiroshi Sukegawa +3 more | 2015-06-09 |
| 8990530 | Storage system in which fictitious information is prevented | Yuji Nagai, Yasufumi Tsumagari, Hiroyuki Sakamoto, Hideki Mimura | 2015-03-24 |
| 8959615 | Storage system in which fictitious information is prevented | Yuji Nagai, Yasufumi Tsumagari, Hiroyuki Sakamoto, Hideki Mimura | 2015-02-17 |
| 8929547 | Content data reproduction system and collection system of use history thereof | Akira Miura, Hiroshi Suu, Hiroyuki Sakamoto, Akihiro Kasahara | 2015-01-06 |
| 8930613 | Memory system in which extended function can easily be set | Akihisa Fujimoto | 2015-01-06 |
| 8904094 | Memory system in which extended function can easily be set | Akihisa Fujimoto | 2014-12-02 |
| 8887153 | Digital signature server and user terminal | Hiroshi Suu, Akira Miura, Akihiro Kasahara | 2014-11-11 |
| 8874917 | Storage system in which fictitious information is prevented | Yuji Nagai, Yasufumi Tsumagari, Hiroyuki Sakamoto, Hideki Mimura | 2014-10-28 |
| 8818268 | Content data distribution system, content data delivery method, and semiconductor device | Tsukasa Matoba, Akihiro Kasahara, Hiroyuki Sakamoto | 2014-08-26 |
| 8799682 | Content data reproduction system and recording device | Akihiro Kasahara, Hiroshi Suu, Akira Miura | 2014-08-05 |
| 8788907 | Memory chip for converting data received from controller controlling reading and writing of data | Toru Kambayashi, Akihiro Kasahara, Hiroyuki Sakamoto, Taku Kato, Hiroshi Sukegawa +3 more | 2014-07-22 |
| 8775724 | Memory system in which extension function can easily be set | Akihisa Fujimoto | 2014-07-08 |
| 8732470 | Storage system in which fictitious information is prevented | Yuji Nagai, Yasufumi Tsumagari, Hiroyuki Sakamoto, Hideki Mimura | 2014-05-20 |
| 8650393 | Authenticator | Taku Kato, Tatsuyuki Matsushita, Yuji Nagai | 2014-02-11 |
| 8600064 | Apparatus, method, and computer program product for processing information | Taku Kato, Jun Sato | 2013-12-03 |
| 8578177 | Recording device, and content-data playback system | Taku Kato, Akihiro Kasahara, Hiroshi Suu, Atsushi Kondo, Jun Sato +2 more | 2013-11-05 |
| 8478108 | Apparatus, method, and computer program product for recording content | Hiroshi Isozaki, Atsushi Ishihara, Taku Kato, Toru Kambayashi | 2013-07-02 |