Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8832307 | Telephony system, connection control method, connection control device and recording medium | Tomoyuki Furutono, Junji Tagane, Akio Koga, Ryuji Oda, Masahiro Tanaka +3 more | 2014-09-09 |
| 7821989 | Call management method, call management system and message processing server system | Hiroyasu Hayashida, Ryouji Nakamatsu | 2010-10-26 |