Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7620045 | Communication system, multicast-capable router, transmitter terminal, receiver terminal, and communication method | Ken Igarashi, So Ishida | 2009-11-17 |
| 7590888 | Receiving device and transmitting device for determining errors in transmission | Ken Igarashi | 2009-09-15 |