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Diaphragm and speaker using same

  • US 9,049,511 B2
  • Filed: 03/03/2014
  • Issued: 06/02/2015
  • Est. Priority Date: 03/19/2013
  • Status: Active Grant
First Claim
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1. A diaphragm, comprising:

  • a middle layer,a first adhesive layer attached to one side of the middle layer;

    a second adhesive layer attached to the other side of the middle layer;

    a first layer adhered to the middle layer by the first adhesive layer, anda second layer adhered to the middle layer by the second adhesive layer, wherein the first adhesive layer is made of acrylic adhesive and the second adhesive layer is made of silica gel.

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