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:
Jan. 03, 2017
Filed:
Mar. 07, 2014
Tdk Corporation, Tokyo, JP;
Taku Masai, Tokyo, JP;
Masamitsu Haemori, Tokyo, JP;
Masahito Furukawa, Tokyo, JP;
Junichi Yamazaki, Tokyo, JP;
Kouhei Ohhashi, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
Provided is a piezoelectric composition containing a major component that is a perovskite-type oxide which is represented by the general formula ABO, which contains no Pb, and which has A-sites containing Bi, Na, and K and B-sites containing Ti. The Ti is partly substituted with a transition metal element Me that is at least one selected from the group consisting of Mn, Cr, Fe, and Co. The content of Bi and the transition metal element Me in the perovskite-type oxide, which is the major component, is 6 mole percent to 43 mole percent in terms of BiMeO.