Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807283 | Electroacoustic transducer | Yoshiharu Oishi, Kazushi Suzuki, Harunobu Tsuchiya | 2004-10-19 |
| 6804369 | Electroacoustic transducer | Takahiro Sone | 2004-10-12 |
| 6700338 | Tubular acoustic pressure wave generator | Nobumasa Sugimoto | 2004-03-02 |