Issued Patents All Time
Showing 1–25 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11397821 | Remote access control system | Toshiharu Oya, Tatsuro Ikeda, Fangming Zhao | 2022-07-26 |
| 10521320 | Information processing device, information processing method and computer program product | Hiroyoshi Haruki, Fukutomo NAKANISHI, Fangming Zhao, Satoshi Aoki, Toshinari Takahashi | 2019-12-31 |
| 10447469 | Management apparatus, computer program product, system, device, and method | Yoshikazu Hanatani, Yoshihiro Oba, Naoki Ogura | 2019-10-15 |
| 10361850 | Authenticator, authenticatee and authentication method | Taku Kato, Yuji Nagai, Fangming Zhao | 2019-07-23 |
| 10361851 | Authenticator, authenticatee and authentication method | Taku Kato, Yuji Nagai, Fangming Zhao | 2019-07-23 |
| 10187207 | Re-encryption key generator, re-encryption apparatus, encryption apparatus, decryption apparatus, and storage medium | Ryotaro Hayashi | 2019-01-22 |
| 10116439 | Encrypted data computation system, device, and program | Masanobu Koike, Ryotaro Hayashi | 2018-10-30 |
| 10095607 | Information processing device, computer program product, and testing system with acquiring total execution history | Satoshi Aoki, Fukutomo NAKANISHI, Hiroyoshi Haruki, Fangming Zhao, Toshinari Takahashi | 2018-10-09 |
| 9887841 | Authenticator, authenticatee and authentication method | Taku Kato, Yuji Nagai, Fangming Zhao | 2018-02-06 |
| 9819487 | Re-encryption key generator, re-encryption device, encryption device, decryption device, and program | Yoshihiro Fujii, Koji Okada, Ryotaro Hayashi | 2017-11-14 |
| 9544138 | Authenticator, authenticatee and authentication method | Yuji Nagai, Taku Kato | 2017-01-10 |
| 9515827 | Key management device, communication device, communication system, and computer program product | Yoshikazu Hanatani, Toru Kambayashi | 2016-12-06 |
| 9426131 | Server apparatus and program to re-encrypt ciphertext data | Ryotaro Hayashi, Yoshihiro Fujii, Takuya Yoshida, Koji Okada | 2016-08-23 |
| 9413532 | Information recording device | Taku Kato, Yuji Nagai | 2016-08-09 |
| 9319389 | Data recording device, and method of processing data recording device | Taku Kato, Yuji Nagai | 2016-04-19 |
| 9294285 | Information recording device | Taku Kato, Yuji Nagai | 2016-03-22 |
| 9253169 | Memory and storage devices to be authenicated using a host device, authenication system and host device | Yuji Nagai, Taku Kato | 2016-02-02 |
| 9246683 | Re-encryption key generator, re-encryption apparatus, and program | Ryotaro Hayashi, Yoshihiro Fujii, Takuya Yoshida, Koji Okada | 2016-01-26 |
| 9225513 | Authenticator, authenticatee and authentication method | Taku Kato, Yuji Nagai, Fangming Zhao | 2015-12-29 |
| 9201811 | Device and authentication method therefor | Yuji Nagai, Taku Kato, Toshihiro Suzuki, Noboru Shibata | 2015-12-01 |
| 9183159 | Authentication method | Yuji Nagai, Taku Kato | 2015-11-10 |
| 9160531 | Host device, semiconductor memory device, and authentication method | Taku Kato, Yuji Nagai | 2015-10-13 |
| 9124432 | Host device and authentication method for host device | Yuji Nagai, Taku Kato, Shinichi Matsukawa, Yasufumi Tsumagari | 2015-09-01 |
| 9100187 | Authenticator | Taku Kato, Yuji Nagai, Shinichi Matsukawa | 2015-08-04 |
| 9094193 | Information recording device | Taku Kato, Yuji Nagai | 2015-07-28 |