Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11757857 | Digital credential issuing system and method | Masahisa Kawashima | 2023-09-12 |
| 10979411 | Authentication control system, server apparatus, client apparatus, authentication control method, authentication method, and program | Tetsutaro Kobayashi, Hitoshi Fuji, Akira Nagai | 2021-04-13 |
| 10686604 | Key device, key cloud system, decryption method, and program | Tsunekazu Saito, Tetsutaro Kobayashi | 2020-06-16 |
| 10644878 | Key management system and method | — | 2020-05-05 |
| 10389753 | Security system and method for internet of things infrastructure elements | Masahisa Kawashima, Moosa Choudhry, Rich Boyer | 2019-08-20 |
| 10361841 | Proxy computing system, computing apparatus, capability providing apparatus, proxy computing method, capability providing method, program, and recording medium | Tetsutaro Kobayashi | 2019-07-23 |
| 10170071 | Display apparatus | — | 2019-01-01 |
| 10163370 | Decoding apparatus, decoding capability providing apparatus, method thereof and program | Reo Yoshida, Tetsutaro Kobayashi | 2018-12-25 |
| 10033711 | Directory service device, client device, key cloud system, method thereof, and program | Tomohide Yamamoto, Tetsutaro Kobayashi | 2018-07-24 |
| 9960906 | Proxy computing system, computing apparatus, capability providing apparatus, proxy computing method, capability providing method, program, and recording medium | Tetsutaro Kobayashi | 2018-05-01 |
| 9894056 | Segmented secret-key storage system, segment storage apparatus, segmented secret-key storage method | Tetsutaro Kobayashi, Reo Yoshida | 2018-02-13 |
| 9842086 | Calculation device, calculation method, and program | Tetsutaro Kobayashi | 2017-12-12 |
| 9794060 | Proxy computing system, computing apparatus, capability providing apparatus, proxy computing method, capability providing method, program, and recording medium | Tetsutaro Kobayashi | 2017-10-17 |
| 9735963 | Decryption service providing device, processing device, safety evaluation device, program, and recording medium | Tetsutaro Kobayashi, Hitoshi Fuji, Tomohide Yamamoto, Reo Yoshida | 2017-08-15 |
| 9607158 | Proxy computing system, computing apparatus, capability providing apparatus, proxy computing method, capability providing method, program, and recording medium | Tetsutaro Kobayashi | 2017-03-28 |
| 9542155 | Proxy calculation system, method, request device and program thereof | Tetsutaro Kobayashi | 2017-01-10 |
| 9037623 | Proxy calculation system, proxy calculation method, proxy calculation requesting apparatus, and proxy calculation program and recording medium therefor | Tetsutaro Kobayashi | 2015-05-19 |
| 8458478 | Signature generating apparatus, signature verifying apparatus, and methods and programs therefor | Koutarou Suzuki, Masayuki Abe, Tatsuaki Okamoto, Atsushi Fujioka | 2013-06-04 |
| 8001384 | Authentication system, authentication method, attesting device, verification device, their programs, and recording medium | Eiichiro Fujisaki | 2011-08-16 |