发明名称 LOUDSPEAKER MEMBRANE AND METHOD FOR MANUFACTURING SUCH A MEMBRANE
摘要 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.
申请公布号 EP2941903(B1) 申请公布日期 2017.02.15
申请号 EP20130821890 申请日期 2013.12.24
申请人 FOCAL JMLab 发明人 DE LA NOUVELLE, Bruno;HOSOI, Shintaro
分类号 H04R7/12 主分类号 H04R7/12
代理机构 代理人
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