Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8300858 | Electrostatic speaker | Yasuaki Takano | 2012-10-30 |
| 4609786 | Band and the headphone utilizing the same | Hideo Omoto | 1986-09-02 |
| 4472604 | Planar type electro-acoustic transducer and process for manufacturing same | Akira Nakamura | 1984-09-18 |
| 4413161 | Electro-acoustic transducer | Toyosaku Matsumoto | 1983-11-01 |
| 4410768 | Electro-acoustic transducer | Akira Nakamura | 1983-10-18 |
| 4344503 | Diaphragm for electro-acoustic transducer | Akira Nakamura | 1982-08-17 |
| 4337379 | Planar electrodynamic electroacoustic transducer | — | 1982-06-29 |
| 4315557 | Diaphragm for electro-acoustic transducer | Akira Nakamura | 1982-02-16 |