Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9787474 | Information processing device, information processing method, and program | Seiichi Matsuda | 2017-10-10 |
| 9705858 | Information processing device and information processing method to maintain secret key for authentication | Yohei Kawamoto, Taizo Shirai, Yu Tanaka | 2017-07-11 |
| 9607173 | Information processing apparatus, information processing method, and recording medium | Yohei Kawamoto, Taizo Shirai, Yu Tanaka | 2017-03-28 |
| 9602285 | Authentication device, authentication method, and program | Taizo Shirai, Harunaga Hiwatari | 2017-03-21 |
| 9577827 | Information processing device, information processing method, and program | Seiichi Matsuda | 2017-02-21 |
| 9516007 | Verifier and prover have an authentication protocol with challenge-response with the challenge from prover having identification of the verifier | Harunaga Hiwatari, Taizo Shirai | 2016-12-06 |
| 9490978 | Information processing apparatus and information processing method | — | 2016-11-08 |
| 9300466 | Transmitting device, receiving device, transmitting method, receiving method, and program | Seiichi Matsuda | 2016-03-29 |
| 9276735 | Information processing apparatus, signature generation apparatus, information processing method, signature generation method, and program | Harunaga Hiwatari, Taizo Shirai | 2016-03-01 |
| 9184914 | Information processing apparatus and information processing method | — | 2015-11-10 |
| 9178700 | Information processing apparatus, information processing method, program, and recording medium | — | 2015-11-03 |
| 9129122 | Signature verification apparatus, signature verification method, program, and recording medium | Taizo Shirai, Harunaga Hiwatari | 2015-09-08 |
| 9123194 | Print medium, card creation method, and program | Taizo Shirai, Harunaga Hiwatari | 2015-09-01 |
| 9076000 | Authentication device, authentication method, and program | Taizo Shirai, Harunaga Hiwatari | 2015-07-07 |
| 8959355 | Authentication device, authentication method, program, and signature generation device | Taizo Shirai, Harunaga Hiwatari | 2015-02-17 |
| 8826025 | Authentication device, authentication method, program, and signature generation device | Taizo Shirai, Harunaga Hiwatari | 2014-09-02 |
| 8675867 | Key generation algorithm using secret polynomial over finite ring and transformation | Taizo Shirai, Harunaga Hiwatari | 2014-03-18 |
| 8522033 | Authentication device, authentication method, program, and signature generation device | Taizo Shirai, Harunaga Hiwatari | 2013-08-27 |
| 8452974 | Image processing apparatus, electronic signature generation system, electronic signature key generation method, image processing method, and program | — | 2013-05-28 |
| 8433912 | Authentication device, authentication method, program, and signature generation device | Taizo Shirai, Harunaga Hiwatari | 2013-04-30 |
| 8370633 | Apparatus, method, and computer instructions for generating a substitute signature key pair | — | 2013-02-05 |