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:
Dec. 08, 2015
Filed:
Jan. 26, 2011
Alexander Glazunov, Deutschlandsberg, AT;
Oliver Dernovsek, Lieboch, AT;
Alexander Glazunov, Deutschlandsberg, AT;
Oliver Dernovsek, Lieboch, AT;
EPCOS AG, Munich, DE;
Abstract
A piezo electrical component has a stack of piezo electrical layers arranged over each other and electrode layers arranged therebetween. The stack has at least one first piezo electrical layer having a first piezo electrical charge constant and, directly adjacent thereto, at least one second piezo electrical layer having a second piezo electrical charge constant. The piezo electrical charge constant describes an expansion of the piezo electrical layer perpendicular to an electrical field at a voltage 6 applied to the electrode layers. The first piezo electrical charge constant is different from the second piezo electrical charge constant.