Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810014 | ATM multiplex apparatus and congestion reporting method | Toru Watanabe, Kanichi Satou | 2004-10-26 |
| 6700973 | System for transmitting DTMF signal and communication equipment thereof | Shinya Suzuki, Toru Yoshihara, Makoto Oohashi | 2004-03-02 |