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Title:
FILLER FOR PIEZOELECTRIC MATERIALS, COMPOSITE PIEZOELECTRIC MATERIAL, COMPOSITE PIEZOELECTRIC ELEMENT, FILLER FOR COMPOSITE PIEZOELECTRIC MATERIALS, AND METHOD FOR PRODUCING ALKALI NIOBATE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2017/221892
Kind Code:
A1
Abstract:
A filler for piezoelectric materials, which is characterized by being alkali niobate compound particles wherein: the ratio of the number of moles of potassium to the total number of moles of sodium and potassium in terms of atoms, namely K/(Na + K) is from 0.460 to 0.495; and the ratio of the total number of moles of alkali metal elements to the number of moles of niobium in terms of atoms, namely (Li + Na + K)/Nb is from 0.995 to 1.005. The present invention is able to provide: a filler for piezoelectric materials, which has excellent piezoelectric characteristics; and a composite piezoelectric material which is composed of the filler for piezoelectric materials and a polymer matrix.

Inventors:
TANABE Shinji (9-11-1, Kameido, Koto-k, Tokyo 15, 〒1368515, JP)
KUNITA Hajime (9-11-1, Kameido, Koto-k, Tokyo 15, 〒1368515, JP)
KIKUCHI Shunsuke (9-11-1, Kameido, Koto-k, Tokyo 15, 〒1368515, JP)
Application Number:
JP2017/022533
Publication Date:
December 28, 2017
Filing Date:
June 19, 2017
Export Citation:
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Assignee:
NIPPON CHEMICAL INDUSTRIAL CO., LTD. (9-11-1, Kameido Koto-k, Tokyo 15, 〒1368515, JP)
International Classes:
H01L41/187; C01G33/00; H01G7/06; H01L41/113; H01L41/18; H01L41/43
Domestic Patent References:
WO2017010135A12017-01-19
Foreign References:
JP2015222780A2015-12-10
JP2007201388A2007-08-09
JP2015050432A2015-03-16
JP2015192120A2015-11-02
JP2014011344A2014-01-20
Attorney, Agent or Firm:
ASHITABA INTERNATIONAL PATENT OFFICE (Kaede Bldg. 2F, 2-3-6 Uchikanda, Chiyoda-k, Tokyo 47, 〒1010047, JP)
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