Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8744455 | Wireless communication system | Junichi Takagi | 2014-06-03 |
| 7983683 | Communication method, communication apparatus and communication system | Yuichiro Hamano, Yukihiro Noda, Ritsuo Hayashi | 2011-07-19 |
| 7949339 | Communication method, communication apparatus and communication system | Yuichiro Hamano, Yukihiro Noda, Ritsuo Hayashi | 2011-05-24 |
| 7675906 | Media communication system, and terminal apparatus and signal conversion apparatus in said system | — | 2010-03-09 |
| 7454215 | Communication method, communication apparatus and communication system | Yuichiro Hamano, Yukihiro Noda, Ritsuo Hayashi | 2008-11-18 |
| 7061903 | Media communication system, and terminal apparatus and signal conversion apparatus in said system | — | 2006-06-13 |
| 6826274 | Exchange control method | Satoshi Murata, Yuichi Sugimura, Keigoro Yokota, Tatsuo Sunouchi | 2004-11-30 |
| 6625143 | Switch having virtual access network capability and switching system thereof | Kenshi Kamiya | 2003-09-23 |
| 6275572 | Congestion control method and system in an exchange | Satoshi Murata | 2001-08-14 |
| 5046181 | Switching system with two-way line managing system | Yoshihiro Kaneko | 1991-09-03 |
| 4907256 | Exchange system having originating call restriction function | Tatsuo Sunouchi, Kanji Higuchi, Hiroshi Saito, Minoru Maruyama | 1990-03-06 |