Loudspeaker diaphragm, loudspeaker, and production method for loudspeaker diaphragm
US10484794B2 · kind B2 · utility
1Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2018 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Jul 10, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2307/029
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A loudspeaker diaphragm includes resin and hollow glass member particles contained in the resin. Further, a loudspeaker includes the above-described loudspeaker diaphragm, a magnetic circuit, a frame connected to the magnetic circuit, and a voice coil body having one end connected to the loudspeaker diaphragm and the other end disposed inside a magnetic gap in the magnetic circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.