Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7620191 | Condenser microphone and method for manufacturing the same | Atsushi Kanemaru | 2009-11-17 |
| 6947568 | Condenser microphone | Megumi Horiuchi | 2005-09-20 |
| 6898292 | Electret microphone | Koji Takayama | 2005-05-24 |
| 6744896 | Electret microphone | Keiji Watanabe, Koji Takayama | 2004-06-01 |
| 6708387 | Method for manufacturing condenser microphones | Megumi Horiuchi | 2004-03-23 |
| D476976 | Microphone | — | 2003-07-08 |