ELECTROSTATIC SOUND WAVE GENERATION DEVICE AND ELECTROSTATIC SPEAKER

Title:

ELECTROSTATIC SOUND WAVE GENERATION DEVICE AND ELECTROSTATIC SPEAKER

Document Type and Number:

WIPO Patent Application WO/2019/177150

Kind Code:

A1

Abstract:

The present invention provides technology that makes it possible to improve the reliability of an electrostatic sound wave generation device by minimizing the occurrence of pull-in. An electrostatic sound wave generation device is provided with: a fixed electrode (11) comprising a through hole (11a) that passes therethrough in the thickness direction; two vibrating electrodes (12, 13) that are arranged so as to face the fixed electrode (11) with said fixed electrode (11) therebetween and that are movable with respect to the fixed electrode (11); and a connection member (14) for connecting the two vibrating electrodes (12, 13) via the through hole (11a). A dielectric layer (15) is provided to at least a partial area on the surfaces facing the two vibrating electrodes (12, 13) on both sides of the fixed electrode (11).

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Inventors:

KATAOKA TOMOHIRO (JP)
TAKAHASHI TOSHIYUKI (JP)
NISHIO HIDETOSHI (JP)
HORIIKE SUMIO (JP)
TANAKA SHUJI (JP)
FROEMEL JOERG (JP)
OHTAKA KOICHI (JP)
MUROYAMA MASANORI (JP)

Application Number:

PCT/JP2019/010845

Publication Date:

September 19, 2019

Filing Date:

March 15, 2019

Export Citation:

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Assignee:

OMRON TATEISI ELECTRONICS CO (JP)
UNIV TOHOKU (JP)

International Classes:

H04R19/02; H04R3/06

Foreign References:

JP2007318327A	2007-12-06
JP2017050709A	2017-03-09
JP2013201488A	2013-10-03
JP2012029290A	2012-02-09

Attorney, Agent or Firm:

IP FIRM SHUWA (JP)

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