Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659609 | Echo canceller and waveform-distortion compensation device | Nobukazu Koizumi, Mitsuo Kakuishi | 1997-08-19 |
| 5638409 | Data receiving device for reproducing a received symbol from a received data signal | Nobukazu Koizumi, Yasuo Ohtomo, Mitsuo Kakuishi | 1997-06-10 |
| 5617450 | Digital subscriber loop interface unit | Mitsuo Kakuishi, Nobukazu Koizumi | 1997-04-01 |