Invention Grant
- Patent Title: Speaker diaphragm and method of producing speaker diaphragm
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Application No.: US17394660Application Date: 2021-08-05
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Publication No.: US11716570B2Publication Date: 2023-08-01
- Inventor: Hiroshi Nakashima , Tsunenori Sano
- Applicant: Yamaha Corporation
- Applicant Address: JP Hamamatsu
- Assignee: Yamaha Corporation
- Current Assignee: Yamaha Corporation
- Current Assignee Address: JP Hamamatsu
- Agency: Crowell & Moring LLP
- Priority: JP 19019300 2019.02.06
- Main IPC: H04R7/12
- IPC: H04R7/12 ; H04R1/28 ; H04R31/00
Abstract:
A speaker diaphragm includes a first lamination region and a second lamination region. In the first lamination region, a plurality of layers are laminated in a thickness direction of the speaker diaphragm. In the second lamination region, a plurality of layers different in number from the plurality of layers in the first lamination region are laminated. The second lamination region is different from first lamination region in average density.
Public/Granted literature
- US20210368270A1 Speaker Diaphragm and Method of Producing Speaker Diaphragm Public/Granted day:2021-11-25
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