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. 20, 2016
Filed:
May. 22, 2015
Tdk Corporation, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A multilayer piezoelectric device comprises a multilayer body and first and second outer electrodes. The multilayer body has base, first and second driving parts, and non-driving part. The driving parts and non-driving part extend from the base along stacking direction. The first driving part is closer to the non-driving part than the second driving part. Each driving part has first and second inner electrodes opposing each other in stacking direction. The base has a third inner electrode extending along a plane orthogonal to the stacking direction. The first outer electrode is connected to the first inner electrode. The second outer electrode is connected to the second and third inner electrodes. In the stacking direction, the overlap area of the third and second inner electrode of the first driving part is greater than the overlap area of the third and second inner electrode of the second driving part.