Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807283 | Electroacoustic transducer | Mitsuhiro Masuda, Kazushi Suzuki, Harunobu Tsuchiya | 2004-10-19 |
| 6704430 | Electroacoustic transducer | Yoshio Imahori, Hiroshi Fujinami, Takahiro Sone | 2004-03-09 |
| 6678388 | Electroacoustic transducer | Youichi Gotoh, Yoshio Imahori, Kazuyasu Ono | 2004-01-13 |