Title:
ACOUSTIC VIBRATION PLATE AND METHOD FOR MANUFACTURING ACOUSTIC VIBRATION PLATE
Document Type and Number:
WIPO Patent Application WO/2021/106628
Kind Code:
A1
Abstract:
An acoustic vibration plate 10 is provided with a metal foil 11 and a thermoplastic resin film 12 laminated on the metal foil 11. The ratio of a linear coefficient of expansion CTEZ in the thickness direction to a linear coefficient of expansion CTEX of the thermoplastic resin film 12, or CTEZ/CTEX, is 3.0 to 10.0 inclusive. The total of the basis weights of the metal foil 11 and the thermoplastic resin film 12 is 45 g/m2 to 150 g/m2 inclusive.
Inventors:
KASAHARA JUNYA (JP)
TACHIBANA EISUKE (JP)
TACHIBANA EISUKE (JP)
Application Number:
PCT/JP2020/042412
Publication Date:
June 03, 2021
Filing Date:
November 13, 2020
Export Citation:
Assignee:
UBE EXSYMO CO LTD (JP)
International Classes:
H04R7/02; H04R31/00
Foreign References:
| JPS4953731U | 1974-05-13 | |||
| JP2001313993A | 2001-11-09 | |||
| JP2010011436A | 2010-01-14 | |||
| JP3911935A | ||||
| JP2001270033A | 2001-10-02 |
Other References:
See also references of EP 4068803A1
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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