Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7272134 | Internet telephone connection method, bandwidth controller and gate keeper | Etsuko Iwama, Ryogo Honda, Kansuke Kuroyanagi, Yuichi Mori | 2007-09-18 |
| 7154883 | Internet telephone system | Makoto Hirayama, Kazuhiro Kita | 2006-12-26 |
| 6600735 | Internet telephone connection method, bandwidth controller and gate keeper | Etsuko Iwama, Ryogo Honda, Kansuke Kuroyanagi, Yuichi Mori | 2003-07-29 |