Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D578062 | Electroacoustic transducer | — | 2008-10-07 |
| 6654478 | Electroacoustic transducer | Yoshikazu Tsuchikiri, Yoshiharu Oishi | 2003-11-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D578062 | Electroacoustic transducer | — | 2008-10-07 |
| 6654478 | Electroacoustic transducer | Yoshikazu Tsuchikiri, Yoshiharu Oishi | 2003-11-25 |