Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8380683 | Data conversion device, data conversion method, and program | Taizo Shirai, Kyoji Shibutani, Shiho Moriai, Tetsu Iwata | 2013-02-19 |
| 8375206 | Authentication and encryption utilizing command identifiers | Tomoyuki Asano, Yoshihito Ishibashi, Taizo Shirai, Masaharu Yoshimori, Makoto Tanaka | 2013-02-12 |
| 8369522 | Encryption processing apparatus, encryption method, and computer program | Taizo Shirai, Kyoji Shibutani, Shiho Moriai | 2013-02-05 |
| 8290148 | Encryption processing apparatus, encryption processing method, and computer program | Taizo Shirai, Kyoji Shibutani, Shiho Moriai | 2012-10-16 |
| 8165288 | Cryptographic processing apparatus and cryptographic processing method, and computer program | Kyoji Shibutani, Taizo Shirai, Shiho Moriai | 2012-04-24 |
| 7957527 | Cryptographic processing apparatus | Masanobu Katagi, Izuru Kitamura, Tsuyoshi Takagi | 2011-06-07 |
| 7925017 | Information recording device, information playback device, information recording medium, information recording method, information playback method, and program providing medium | Taizo Shirai, Yoshihito Ishibashi, Kenji Yoshino, Takeshi Ito, Shigekazu Hayashi | 2011-04-12 |
| 7835517 | Encryption processing apparatus, encryption processing method, and computer program | Masanobu Katagi | 2010-11-16 |
| 7697683 | Cryptography-processing method, cryptography-processing apparatus and computer program | Masanobu Katagi, Izuru Kitamura, Tsuyoshi Takagi | 2010-04-13 |
| 7669052 | Authentication and encryption utilizing command identifiers | Tomoyuki Asano, Yoshihito Ishibashi, Taizo Shirai, Masaharu Yoshimori, Makoto Tanaka | 2010-02-23 |
| 7659837 | Operation processing apparatus, operation processing control method, and computer program | Yoshikazu Miyato | 2010-02-09 |
| 7373506 | Data authentication system | Tomoyuki Asano, Yoshihito Ishibashi, Taizo Shirai | 2008-05-13 |
| 7243228 | Data storage with CBC-mode encryption processing | Taizo Shirai, Yoshihito Ishibashi, Kenji Yoshino | 2007-07-10 |
| 7177422 | Elliptic curve encryption processing method, elliptic curve encryption processing apparatus, and program | — | 2007-02-13 |
| 7124317 | Information recording and playback system having a memory interface and method therefore | Kenji Yoshino, Yoshihito Ishibashi, Taizo Shirai | 2006-10-17 |
| 6834333 | Data processing device, data storage device, data processing method, and program providing medium for storing content protected under high security management | Kenji Yoshino, Yoshihito Ishibashi, Taizo Shirai, Takeshi Ito, Shigekazu Hayashi | 2004-12-21 |