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:
Jun. 10, 2008
Filed:
Jun. 13, 2005
Kazuo Mochizuki, Akita, JP;
Syuuzi Itoh, Akita, JP;
Hiroshi Hatanaka, Akita, JP;
TDK Corporation, Tokyo, JP;
Abstract
A multilayer piezoelectric element is provided with a multilayer body, a first external electrode on a side face of the multilayer body, and a second external electrode outside the first external electrode. The multilayer body consists of an alternate stack of a plurality of piezoelectric members and a plurality of internal electrodes. The first external electrode is electrically connected to predetermined internal electrodes. The second external electrode extends in a wave pattern along a stack direction of the multilayer body and is of flat plate shape. The first external electrode and the second external electrode are electrically and physically connected through a plurality of connections.