Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5315704 | Speech/voiceband data discriminator | Minoru Shinta, Takao Nishitani | 1994-05-24 |
| 4933934 | Time division multiplexing method with channel compression and a device therefor | Akira Kanemasa | 1990-06-12 |
| 4237552 | Time division multiplexed transmission systems for telephone or like signals with frequency band compression | Kunihiko Niwa, Atsushi Tomozawa | 1980-12-02 |