Invention Application
- Patent Title: LOUDSPEAKER MEMBRANE AND METHOD FOR MANUFACTURING SUCH A MEMBRANE
- Patent Title (中): 扬声器膜和制造这种膜的方法
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Application No.: US14650727Application Date: 2013-12-24
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Publication No.: US20150317972A1Publication Date: 2015-11-05
- Inventor: Bruno De La Nouvelle , Shintaro Hosoi
- Applicant: FOCAL JMLAB
- Priority: FR1350116 20130107
- International Application: PCT/FR2013/053266 WO 20131224
- Main IPC: G10K13/00
- IPC: G10K13/00 ; B29C70/40
Abstract:
The invention relates to a loudspeaker membrane having a sandwich structure, having a central web separating two layers of material based on high-rigidity threads impregnated with a polymer resin, characterized in that the central web is formed from a layer of material based on oriented natural fibres that are impregnated with a polymer resin.
Public/Granted literature
- US09633648B2 Loudspeaker membrane and method for manufacturing such a membrane Public/Granted day:2017-04-25
Information query
