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:
Oct. 22, 2013
Filed:
Oct. 24, 2011
Takakiyo Harigai, Kyoto, JP;
Yoshiaki Tanaka, Nara, JP;
Hideaki Adachi, Osaka, JP;
Eiji Fujii, Osaka, JP;
Takakiyo Harigai, Kyoto, JP;
Yoshiaki Tanaka, Nara, JP;
Hideaki Adachi, Osaka, JP;
Eiji Fujii, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The present invention provides a piezoelectric thin film comprising an electrode film with a (001) orientation, a (NaBi)TiO—BaTiOfilm with a (001) orientation (x represents not less than 0.29 and not more than 0.4) and a (Na,Bi)TiO—BaTiOpiezoelectric layer, the electrode film, the (NaBi)TiO—BaTiOfilm, and the (Na,Bi)TiO—BaTiOpiezoelectric layer being laminated in this order. The lead-free piezoelectric thin film of the present invention has low dielectric loss and high piezoelectric performance.