Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7321767 | Switching system connecting a radio communication terminal via a LAN line to a public switched network or a leased line | Yousuke Mizutani, Yumiko Araki | 2008-01-22 |
| 7233995 | Method and device for connecting networks | Kohei Yamaguchi, Tsuneyuki Sakano | 2007-06-19 |
| 6744535 | Facsimile communication system | Kouichi Izumi | 2004-06-01 |
| 6400719 | Telephone communication method capable of relating a telephone terminal and a speech channel IP address at the time of call connection | Masanori Goto, Mitsuo Endou, Toshikatsu Nakajima | 2002-06-04 |
| 6335803 | Facsimile communication system | Kouichi Izumi | 2002-01-01 |
| 6285466 | Facsimile communication system | Kouichi Izumi | 2001-09-04 |