Issued Patents 2017
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9742765 | Authentication system and authentication method | Saburo Toyonaga, Hiroyuki Tanaka | 2017-08-22 |
| 9692770 | Signature verification using unidirectional function | Kenjiro Ike, Saburo Toyonaga, Hiroyuki Tanaka | 2017-06-27 |
| 9680639 | Secret sharing apparatus and secret sharing method that restores secret data from at least two of generated shared data | — | 2017-06-13 |
| 9654455 | Communication system, communication device, key management apparatus, and communication method | — | 2017-05-16 |