Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7929716 | Voltage supply circuit, power supply circuit, microphone unit using the same, and microphone unit sensitivity adjustment method | Hiroshige Kinoshita, Masayuki Ida | 2011-04-19 |
| 7864970 | Voltage supply circuit and microphone unit | Masayuki Ida, Hiroshige Kinoshita | 2011-01-04 |