Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7677355 | Speaker diaphragms, manufacturing methods of the same, and dynamic speakers | Satoshi Imamura, Takeshi Hirano, Tomoaki Ogata | 2010-03-16 |
| 7467686 | Speaker diaphragms, manufacturing methods of the same, and dynamic speakers | Satoshi Imamura, Takeshi Hirano, Tomoaki Ogata | 2008-12-23 |
| 4559584 | Combination lighting device and loudspeaker | Fumio Kawabata, Genzo Kurosawa | 1985-12-17 |
| 4471084 | Diaphragm for loudspeakers | Nobuo Fuke, Toshihiro Fukuhara, Yoshiaki Suzuki | 1984-09-11 |