Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6633571 | VPN composing method, interwork router, packet communication method, data communication apparatus, and packet relaying apparatus | Kenichi Sakamoto, Koji Wakayama, Shiro Tanabe, Noboru Endo | 2003-10-14 |