Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7856009 | VoIP gateway apparatus | — | 2010-12-21 |
| 7764666 | VoIP gateway apparatus, and method for controlling call-in/call-out in VoIP gateway apparatus | Noboru Yamada, Kazuhiro Okamoto | 2010-07-27 |
| 6912220 | ATM equipment | Nobuyuki Endou, Nobukatsu Takeda | 2005-06-28 |
| 6862290 | Line switching system and line switching unit of dynamic band variation unit | Ikuo Aso, Sakae Watanabe, Isao Wada | 2005-03-01 |
| 6215794 | Multiple band change-over method for multiplex communication equipment | Sakae Watanabe, Kaoru Suzuki, Ikuo Aso | 2001-04-10 |
| 6031824 | Maintenance and supervisory control method and system for multiplex communication equipment | Kaoru Suzuki, Ikuo Aso, Sakae Watanabe | 2000-02-29 |
| 5999516 | Multiplex communication equipment and communication test method thereof | Kaoru Suzuki, Ikuo Aso, Sakae Watanabe | 1999-12-07 |
| 5953313 | Circuit switching control method for multiplex communication equipment | Ikuo Aso, Kaoru Suzuki, Sakae Watanabe | 1999-09-14 |