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:
Sep. 06, 2016
Filed:
Mar. 31, 2015
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Yuko Saya, Tokyo, JP;
Taku Masai, Tokyo, JP;
Masahito Furukawa, Tokyo, JP;
Masamitsu Haemori, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/187 (2006.01); C04B 35/475 (2006.01); H01L 41/083 (2006.01); H01L 41/08 (2006.01);
U.S. Cl.
CPC ...
H01L 41/1878 (2013.01); C04B 35/475 (2013.01); H01L 41/083 (2013.01); H01L 41/0805 (2013.01);
Abstract
The present invention aims to provide a piezoelectric composition and a piezoelectric element containing the piezoelectric composition. In the piezoelectric composition, the main component contains a substance represented by the following formula with a perovskite structure,(BiNa)(TiMgAlCo)O0.15≦x≦0.7, 0.28≦y≦0.75, 0.02≦z≦0.30, 0.17≦k≦0.83, 0.75≦m≦1.0, and x+y+z=1.