Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8516245 | Method, product and apparatus for accelerating public-key certificate validation | Takahiro Fujishiro, Tadashi Kaji, Shingo Hane, Hitoshi Shimonosono | 2013-08-20 |
| 7558952 | Method and apparatus for accelerating public-key certificate validation | Takahiro Fujishiro, Tadashi Kaji, Shingo Hane, Hitoshi Shimonosono | 2009-07-07 |
| 7533269 | Digital-signed digital document exchange supporting method and information processor | Takahiro Fujishiro, Tadashi Kaji, Shingo Hane, Hitoshi Shimonosono | 2009-05-12 |
| 7409553 | Public key certificate generation method, validation method and apparatus thereof | Takahiro Fujishiro, Satoru Tezuka, Takanobu Oikawa, Izumi Anayama | 2008-08-05 |
| 7409551 | Certificate validity authentication method and apparatus | Takahiro Fujishiro, Satoru Tezuka, Tomoharu Morio, Yutaka Miyazaki | 2008-08-05 |
| 7392380 | Authentication and authorization infrastructure system with CRL issuance notification function | Tadashi Kaji, Takahiro Fujishiro, Shingo Hane, Hiromi Nagano | 2008-06-24 |
| 7080251 | Certificate validity authentication method and apparatus | Takahiro Fujishiro, Satoru Tezuka, Tomoharu Morio, Yutaka Miyazaki | 2006-07-18 |