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. 04, 2001
Filed:
Sep. 19, 2000
Atsushi Murai, Kuwana, JP;
Masayuki Kobayashi, Kuwana, JP;
Denso Corporation, , JP;
Abstract
In a piezoelectric element having a laminated body,of piezoelectric layers, wherein an electric voltage is applied across internal electrodes,and,of positive and negative polarities formed between the layers from external electrodes,and,so as to form an electric field within the piezoelectric layers to thereby displace the piezoelectric layers, an inductor is provided at an intermediate position along a line connecting the external electrode of one polarity and the internal electrode,of the one polarity, whereby no inductor is needed in a driving circuit,even when there are provided numerous piezoelectric elements or a common piezoelectric element only has to be provided in the driving circuit which is common to the respective piezoelectric elements, thus making it possible to drive the piezoelectric elements with a simple driving circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile