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:
Nov. 12, 2013
Filed:
Oct. 18, 2012
Nhk Spring Co., Ltd., Kanagawa, JP;
Hideki Kashima, Kanagawa, JP;
NHK Spring Co., Ltd., Kanagawa, JP;
Abstract
An electrode structure of a piezoelectric element is provided. The piezoelectric element() constitutes a piezoelectric actuatorattached to an attaching partof an object, to minutely move a movable partof the object relative to a base partof the object according to deformation occurring on the piezoelectric element in response to a power applied state of the piezoelectric element. The electrode structure in response an electrodeformed on one of a pair of electrode forming facesandof the piezoelectric element on an inner side of a peripheral zone, the peripheral zone being defined along the periphery of the electrode forming faceon which the electrode is formed. The electrode structure also includes a non-electrode partformed in the peripheral zone. Even if the peripheral zoneof the electrode forming facehaving a short-circuit causing possibility touches the attaching part, no short circuit occurs.