Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7062053 | Condenser microphone structure | — | 2006-06-13 |
| 6748091 | Capacitor microphone and portable telephone using the capacitor microphone | Yukihiro Oba | 2004-06-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7062053 | Condenser microphone structure | — | 2006-06-13 |
| 6748091 | Capacitor microphone and portable telephone using the capacitor microphone | Yukihiro Oba | 2004-06-08 |