EP 4068803 A1 20221005 - ACOUSTIC VIBRATION PLATE AND METHOD FOR MANUFACTURING ACOUSTIC VIBRATION PLATE
Title (en)
ACOUSTIC VIBRATION PLATE AND METHOD FOR MANUFACTURING ACOUSTIC VIBRATION PLATE
Title (de)
AKUSTISCHE VIBRATIONSPLATTE UND VERFAHREN FÜR DIE HERSTELLUNG EINER AKUSTISCHEN VIBRATIONSPLATTE
Title (fr)
PLAQUE DE VIBRATION ACOUSTIQUE ET PROCÉDÉ DE FABRICATION D'UNE PLAQUE DE VIBRATION ACOUSTIQUE
Publication
Application
Priority
- JP 2019213495 A 20191126
- JP 2020042412 W 20201113
Abstract (en)
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/m<sup>2</sup> to 150 g/m<sup>2</sup> inclusive.
IPC 8 full level
H04R 7/02 (2006.01); H04R 31/00 (2006.01)
CPC (source: EP)
H04R 7/10 (2013.01); H04R 31/003 (2013.01); H04R 7/02 (2013.01); H04R 2307/025 (2013.01); H04R 2307/027 (2013.01)
Citation (applicant)
- JP 3911935 B2 20070509
- JP 2001270033 A 20011002 - UBE INDUSTRIES
- See also references of WO 2021106628A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 4068803 A1 20221005; EP 4068803 A4 20231220; CN 114731470 A 20220708; JP 2021087067 A 20210603; JP 7383464 B2 20231120; WO 2021106628 A1 20210603
DOCDB simple family (application)
EP 20892453 A 20201113; CN 202080081492 A 20201113; JP 2019213495 A 20191126; JP 2020042412 W 20201113