Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6882653 | Gateway system having controller and signal processor for interconnecting IP network and telephone network and method for controlling alternative routing at the time of fault of gateway system | Hajime Abe, Takaaki Higashi | 2005-04-19 |