Speaker diaphragm and speaker

WO2025047842A1PCT designated stage expired Publication Date: 2025-03-06YAMAHA CORP
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Patent Information

Application Number
PCT/JP2024/030873
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-01
Filing Date
2024-08-29
Publication Date
2025-03-06

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Abstract

This speaker diaphragm comprises a base material having a resin matrix containing a thermoplastic resin as a main component and fibers dispersed in the resin matrix. The fibers have a plurality of loss regions in which the fibers are locally bent and broken, or a plurality of loss regions each having a diameter that is 5% to 50% larger than the average diameter of the fibers.
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Citation Information

Patent Citations

  • Loudspeaker diaphragm

    JP2007049471A

  • Speaker diaphragm and speaker using the same, and electronic equipment and device using the same speaker

    JP2008193370A

  • Speaker diaphragm and method for producing speaker diaphragm

    WO2020022459A1