Issued Patents 2016
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9525557 | Certificate issuing system, client terminal, server device, certificate acquisition method, and certificate issuing method | Hiroyuki Tanaka, Saburo Toyonaga, Kenjiro Ike | 2016-12-20 |
| 9442890 | Distribution apparatus, restoration apparatus, distribution method, restoration method, and distribution and restoration system | — | 2016-09-13 |
| 9331984 | Secret sharing method and system | — | 2016-05-03 |