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Patent Searching and Data


Title:
SPEAKER DEVICE AND METHOD FOR MANUFACTURING SPEAKER DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/110666
Kind Code:
A1
Abstract:
An array speaker device (1A) is provided with vibrators (20) arranged on one surface of a substrate having a uniform thickness, the vibrators (20) being constituted by a base layer (11), a first electrode layer (12), a piezoelectric element layer (13), and a second electrode layer (14), all having a uniform thickness and being laminated in the order indicated. Holes are provided in the substrate at positions corresponding to the vibrators (20); a sound wave generated by the vibration of the vibrators (20) to which a voltage signal is applied is output through the holes in the thickness direction of the substrate via the first electrode layer (12) and the second electrode layer (14). Scallops (S) composed of indentations and projections that repeat in the thickness direction of the substrate are formed on the inner circumferential walls of the holes.

Inventors:
OGATA Kenji (863, Mitsusawa, Ogori-sh, Fukuoka 06, 〒8380106, JP)
KUROGI Shogo (863, Mitsusawa, Ogori-sh, Fukuoka 06, 〒8380106, JP)
WATANABE Yoshiyuki (3-1-20 Kataoka-machi, Takasaki-sh, Gunma 62, 〒3700862, JP)
Application Number:
JP2016/087513
Publication Date:
June 29, 2017
Filing Date:
December 16, 2016
Export Citation:
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Assignee:
DAI-ICHI SEIKO CO., LTD. (12-4 Negoro, Momoyama-cho Fushimi-ku, Kyoto-sh, Kyoto 24, 〒6128024, JP)
International Classes:
H04R17/00; B81B3/00; B81B7/04; B81C1/00; H01L41/09; H01L41/332; H04R17/10; H04R31/00
Foreign References:
JP2011182298A2011-09-15
JP2011182299A2011-09-15
JPH11285096A1999-10-15
JP2012165308A2012-08-30
JP2008020429A2008-01-31
JP2005303532A2005-10-27
JPS61253996A1986-11-11
JP2013172237A2013-09-02
JP2012100043A2012-05-24
JP2013183384A2013-09-12
Attorney, Agent or Firm:
KIMURA Mitsuru (2nd Floor, Kyohan Building 7, Kandanishiki-cho 2-chome, Chiyoda-k, Tokyo 54, 〒1010054, JP)
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