Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6654478 | Electroacoustic transducer | Yoshiharu Oishi, Yoichi Gotoh | 2003-11-25 |
| 6587397 | Electroacoustic transducer | — | 2003-07-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6654478 | Electroacoustic transducer | Yoshiharu Oishi, Yoichi Gotoh | 2003-11-25 |
| 6587397 | Electroacoustic transducer | — | 2003-07-01 |