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:
Mar. 04, 2008
Filed:
Apr. 18, 2006
Yoichi Kobane, Kuwana, JP;
Hiroaki Asano, Yokkaichi, JP;
Hidekazu Hattori, Nagoya, JP;
Denso Corporation, , JP;
Abstract
A laminated piezoelectric element () comprises a laminated piezoelectric element () piezoelectric layers () composed of a ceramic capable of expanding and contracting upon application of a voltage, and internal electrode layers (and) that supply voltage to the piezoelectric layers, the internal electrode layers and piezoelectric layers being alternately provided, a first external electrode layer () provided on a side of the laminated piezoelectric element () and electrically connected with the internal electrode layers (and), and a second external electrode layer () provided on a side of the laminated piezoelectric element () and electrically connected with the internal electrode layers (and) via the first ecternal electrode layer wherein there are specific external electrode width relationships.