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:
Oct. 06, 2015
Filed:
Jul. 29, 2010
Christian Hoffmann, Deutschlandsberg, AT;
Alain Brice Kounga Njiwa, Dietikon, CH;
Yongli Wang, Deutschlandsberg, AT;
Christian Hoffmann, Deutschlandsberg, AT;
Alain Brice Kounga Njiwa, Dietikon, CH;
Yongli Wang, Deutschlandsberg, AT;
EPCOS AG, Munich, DE;
Abstract
A piezoelectric ceramic composition comprising: a matrix material comprising at least two matrix components having a perovskite structure or consisting of said matrix components; a first matrix component being selected from (BiA)EOand BaEO; and a further matrix component being Bi(MeE)O, wherein A is selected from an alkali metal, particularly sodium or potassium, or a mixture of alkali metals; wherein E is independently selected from titanium, zirconium and mixtures of titanium and zirconium; and wherein Me is selected from bivalent metals.