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Patent Searching and Data


Title:
PIEZOELECTRIC SPEAKER
Document Type and Number:
WIPO Patent Application WO/2019/103016
Kind Code:
A1
Abstract:
This piezoelectric speaker (10) is provided with a piezoelectric film (35), a fixing surface (17) for fixing the piezoelectric film (35) to a support body, and an intervening layer (40) arranged between the piezoelectric film (35) and the fixing surface (17). The degree of constraint of the intervening layer (40) is less than or equal to 5×108 N/m3.

Inventors:
KOMOTO YUSUKE (JP)
HISHIKI TOMOAKI (JP)
OTO KOHEI (JP)
YAMAMOTO SAORI (JP)
SEKIGUCHI YUKA (JP)
Application Number:
JP2018/042908
Publication Date:
May 31, 2019
Filing Date:
November 20, 2018
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
H04R17/00; B32B7/022; H01L41/09; H01L41/193
Domestic Patent References:
WO2013046909A12013-04-04
Foreign References:
JPS6381599U1988-05-28
JP2005303937A2005-10-27
JP2010226405A2010-10-07
JP2017034634A2017-02-09
JPH06236189A1994-08-23
JP2016122187A2016-07-07
Attorney, Agent or Firm:
KAMADA Koichi (JP)
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