Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7904123 | Shield case and MEMS microphone having it | Norio Kimura | 2011-03-08 |
| 7590252 | Heat-resistant electret condenser microphone | Hiroshi Ogura, Yoshinobu Yasuno | 2009-09-15 |
| D517534 | Capacitor microphone | Hiroshi Ogura, Yusuke Takeuchi | 2006-03-21 |