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Patent Searching and Data


Title:
PIEZOELECTRIC SPEAKER
Document Type and Number:
WIPO Patent Application WO/2019/103018
Kind Code:
A1
Abstract:
This piezoelectric speaker (10) is provided with a piezoelectric film (35), a first bonding layer (51) and an intervening layer (40). The piezoelectric film (35) includes a first electrode (61), a second electrode (62) and a piezoelectric body (30) held between the first electrode (61) and the second electrode (62). The first bonding layer (51) is an adhesive or pressure-sensitive adhesive layer. The intervening layer (40) is arranged between the piezoelectric film (35) and the first bonding layer (51). Both entire principal surfaces of the piezoelectric film (35) vibrate up and down.

Inventors:
KOMOTO Yusuke (1-2 Shimohozumi 1-chome, Ibaraki-sh, Osaka 80, 〒5678680, JP)
OTO Kohei (1-2 Shimohozumi 1-chome, Ibaraki-sh, Osaka 80, 〒5678680, JP)
YAMAMOTO Saori (1-2 Shimohozumi 1-chome, Ibaraki-sh, Osaka 80, 〒5678680, JP)
OBAN Ryohei (1-2 Shimohozumi 1-chome, Ibaraki-sh, Osaka 80, 〒5678680, JP)
HISHIKI Tomoaki (1-2 Shimohozumi 1-chome, Ibaraki-sh, Osaka 80, 〒5678680, JP)
Application Number:
JP2018/042910
Publication Date:
May 31, 2019
Filing Date:
November 20, 2018
Export Citation:
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Assignee:
NITTO DENKO CORPORATION (1-2 Shimohozumi 1-chome, Ibaraki-shi Osaka, 80, 〒5678680, JP)
International Classes:
H04R17/00; B32B7/025; B32B7/12; H01L41/09; H01L41/193
Domestic Patent References:
WO2013046909A12013-04-04
Foreign References:
JPS6381599U1988-05-28
JP2017034634A2017-02-09
Attorney, Agent or Firm:
KAMADA Koichi (8th Fl, UMEDA PLAZA BLDG. ANNEX 4-3-25, Nishitenma, Kita-ku, Osaka-sh, Osaka 47, 〒5300047, JP)
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