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:
Apr. 13, 2021
Filed:
Oct. 07, 2016
Ngk Spark Plug Co., Ltd., Aichi, JP;
Kiyohito Shibata, Chiba, JP;
Norifumi Iwaki, Kumagaya, JP;
Toru Ezaki, Saitama, JP;
Toshikatsu Nomura, Nagareyama, JP;
NGK SPARK PLUG CO., LTD., Nagoya, JP;
Abstract
A multilayer piezoelectric element that expands and contracts in response to an applied voltage includes external electrodes disposed on surfaces of an element body, internal electrodes connected to the external electrodes, and piezoelectric layers laminated alternately with the internal electrodes. An electrode material used for the internal electrodes or the external electrodes contains a base material composed of Ag and Pd in a weight ratio of 60/40 to 85/15 and Pt in an amount of 0.1% to 10% by weight based on the weight of the base material. Also included is a piezoelectric actuator including the piezoelectric element and a piezoelectric transformer including the piezoelectric element.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile