Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8422672 | Authenticated device, authenticating device and authenticating method | Keiki Yamada, Satoru Makita | 2013-04-16 |
| 7721092 | Authenticating device, authenticated device and key updating method | Keiki Yamada, Satoru Makita | 2010-05-18 |