Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6731766 | Condenser microphone and production method thereof | Yoshinobu Yasuno | 2004-05-04 |
| 6449370 | Digital electro-acoustic transducer | Yoshinobu Yasuno | 2002-09-10 |
| 6442194 | Digital telephone transmitter/receiver | Yoshinobu Yasuno | 2002-08-27 |
| 6125189 | Electroacoustic transducer of digital type | Yoshinobu Yasuno | 2000-09-26 |