Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4633046 | Adaptive echo canceller | Tsutomu Washida, Yuzo Fukushi, Yoshinori Ito | 1986-12-30 |
| 4610022 | Voice encoding and decoding device | Fumihiro Yato, Akira Kurematsu | 1986-09-02 |
| 4516259 | Speech analysis-synthesis system | Fumihiro Yato, Akira Kurematsu | 1985-05-07 |
| 4479036 | Echo control system | Seiichi Yamamoto | 1984-10-23 |
| 4282406 | Adaptive pitch detection system for voice signal | Fumihiro Yato, Junso Tamura, Hikoichi Ishigami, Akira Kurematsu | 1981-08-04 |
| 4232400 | Echo control system | Seiichi Yamamoto | 1980-11-04 |