Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6914898 | IP COMMUNICATION NETWORK SYSTEM HAVING A GATEWAY FUNCTION WITH COMMUNICATION PROTOCOL CONVERSION BETWEEN A SWITCHED CIRCUIT NETWORK AND A PACKET SWITCHED NETWORK INCLUDING DATA OVER TCP/IP AND VOICE/FAX OVER RTP | Kazutaka Sasagawa, Yasushi Takahashi, Makoto Imahashi | 2005-07-05 |