Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9292370 | Relay node, control method of relay node and network system | Hideyuki Magoshi | 2016-03-22 |
| 8948185 | Relay node, control method of relay node and network system | Hideyuki Magoshi | 2015-02-03 |
| 7394804 | Message conversion server and IP telephone | Tatsuhiko Miyata, Kenichi Sakamoto, Minoru Hidaka, Kazuyoshi Hoshino, Kazuma Yumoto | 2008-07-01 |