Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7352873 | Electret-condenser microphone | Yasuhiro Shigeno, Mamoru Yasuda, Yasuo Sugimori | 2008-04-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7352873 | Electret-condenser microphone | Yasuhiro Shigeno, Mamoru Yasuda, Yasuo Sugimori | 2008-04-01 |