Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7677355 | Speaker diaphragms, manufacturing methods of the same, and dynamic speakers | Satoshi Imamura, Tomoaki Ogata, Toshikatsu Kuwahata | 2010-03-16 |
| 7467686 | Speaker diaphragms, manufacturing methods of the same, and dynamic speakers | Satoshi Imamura, Tomoaki Ogata, Toshikatsu Kuwahata | 2008-12-23 |