Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9326895 | Protective napkin | — | 2016-05-03 |
| 4480155 | Diaphragm type magnetic transducer | — | 1984-10-30 |
| 4471172 | Planar diaphragm transducer with improved magnetic circuit | — | 1984-09-11 |
| 4471173 | Piston-diaphragm speaker | — | 1984-09-11 |
| 4319096 | Line radiator ribbon loudspeaker | — | 1982-03-09 |
| 4210786 | Magnetic field structure for planar speaker | — | 1980-07-01 |