Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9185558 | Authentication server and authentication method by authentication server | Takahiro Tsuchiya | 2015-11-10 |
| 8289871 | Propagation delay time measuring system | — | 2012-10-16 |
| 5673133 | Phase synchronization system | Atsushi Imaoka | 1997-09-30 |