Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8078187 | Communication relay method and device | Hitoshi Yamauchi | 2011-12-13 |
| 7979052 | Communication method, communication system, key management device, relay device and recording medium | Shingo Fujimoto, Motoshi Sumioka, Satoshi Okuyama | 2011-07-12 |