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Title:
PRESSING-FORCE DETECTION DEVICE, AND PRESSING-FORCE-DETECTING TOUCH PANEL
Document Type and Number:
WIPO Patent Application WO/2015/053089
Kind Code:
A1
Abstract:
This pressing-force detection device is provided with: a member to be pressed provided with a contact surface which comes into contact with a pressing means, and which has a pressure applied thereto; a polymeric piezoelectric member which is disposed at a side of the member to be pressed, said side being opposite that of the contact surface, and which has a piezoelectric constant (d14) at 25˚C of at least 1 pC/N, said piezoelectric constant being measured using the stress/charge method; a curable resin layer which is disposed so as to be in contact with at least one portion of a surface of the polymeric piezoelectric member, and which includes at least one selected from the group consisting of a room-temperature-curable resin, a heat-curable resin, and an active energy ray-curable resin; and an electrode which is disposed so as to be in contact with at least one portion of a surface of the curable resin layer and/or the surface of the polymeric piezoelectric member.

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Inventors:
TANIMOTO KAZUHIRO (JP)
YOSHIDA MITSUNOBU (JP)
NISHIKAWA SHIGEO (JP)
ANDO MASAMICHI (JP)
KANO HIDEKAZU (JP)
Application Number:
PCT/JP2014/075521
Publication Date:
April 16, 2015
Filing Date:
September 25, 2014
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
MURATA MANUFACTURING CO (JP)
International Classes:
G01L1/16; G06F3/041; H01L41/113; H01L41/193; H01L41/45
Domestic Patent References:
WO2010038466A12010-04-08
WO2010104196A12010-09-16
WO2010143528A12010-12-16
WO2011125408A12011-10-13
WO2012049969A12012-04-19
WO2011138903A12011-11-10
WO2013054918A12013-04-18
WO2013089048A12013-06-20
Foreign References:
JP2006226858A2006-08-31
JP2012235086A2012-11-29
JP2002284787A2002-10-03
JP2011222679A2011-11-04
JP4934235B22012-05-16
JPS5996123A1984-06-02
JPH0733861A1995-02-03
US2668182A1954-02-02
US4057357A1977-11-08
Other References:
See also references of EP 3035022A4
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (JP)
Nakajima 淳 (JP)
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