The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2022
Filed:
Jun. 19, 2017
Applicant:
Nippon Chemical Industrial Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
NIPPON CHEMICAL INDUSTRIAL CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/18 (2006.01); C01G 33/00 (2006.01); H01L 41/187 (2006.01); H01L 41/43 (2013.01); H01L 41/113 (2006.01);
U.S. Cl.
CPC ...
H01L 41/183 (2013.01); C01G 33/006 (2013.01); H01L 41/1873 (2013.01); H01L 41/43 (2013.01); C01P 2002/72 (2013.01); C01P 2002/74 (2013.01); C01P 2004/03 (2013.01); C01P 2004/51 (2013.01); C01P 2004/52 (2013.01); C01P 2004/53 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01); H01L 41/113 (2013.01);
Abstract
Provided is a piezoelectric material filler including alkali niobate compound particles having a ratio (K/(Na+K)) of the number of moles of potassium to the total number of moles of sodium and potassium of 0.460 to 0.495 in terms of atoms and a ratio ((Li+Na+K)/Nb) of the total number of moles of alkali metal elements to the number of moles of niobium of 0.995 to 1.005 in terms of atoms. The present invention can provide a piezoelectric material filler having excellent piezoelectric properties, and a composite piezoelectric material including the piezoelectric material filler and a polymer matrix.