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. 25, 2007
Filed:
Jul. 09, 2004
Takashi Yagi, Kanagawa, JP;
Shinji Seto, Kanagawa, JP;
Takashi Yagi, Kanagawa, JP;
Shinji Seto, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A piezoelectric device includes a piezoelectric body layer, a first electrode layer at one face side of the piezoelectric body layer, and a second electrode layer at a side of a face of the same that is opposite to the side at which the first electrode layer is disposed. Higher potentials are applied to the first electrode layer and lower potentials are applied to the second electrode layer. The piezoelectric device features a metallic layer disposed in contact with a piezoelectric body layer surface at the side at which the first electrode layer is provided, and a metal oxide layer disposed in contact with a piezoelectric body layer surface at the side at which the second electrode layer is provided. The metallic layer is formed of a metallic material with a standard electrode potential greater than 0 V, and the metal oxide layer is formed of a metal oxide.