Title:
スピーカー振動板
Document Type and Number:
Japanese Patent JP7346834
Kind Code:
B2
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.
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Inventors:
Hiroshi Nakajima
Tsunenori Sano
Tsunenori Sano
Application Number:
JP2019019300A
Publication Date:
September 20, 2023
Filing Date:
February 06, 2019
Export Citation:
Assignee:
Yamaha Corporation
International Classes:
H04R7/12; H04R31/00
Domestic Patent References:
| JP2016082442A | ||||
| JP10013988A | ||||
| JP2017173713A | ||||
| JP2007088879A |
Foreign References:
| WO2014162412A1 |
Attorney, Agent or Firm:
Yoshinori Ikeda
Kazunori Amano
Koji Ishida
Kazunori Amano
Koji Ishida