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:
Feb. 09, 2016
Filed:
Jun. 05, 2015
Seiko Epson Corporation, Tokyo, JP;
Xiaoxing Wang, Chino, JP;
Seiko Epson Corporation, , JP;
Abstract
A piezoelectric elementincludes a first electrode, a piezoelectric layerwhich is provided on the first electrode, and a second electrodewhich is provided on the piezoelectric layer, and the piezoelectric layer is made of a piezoelectric material expressed as a mixed crystal including a first component formed of a complex oxide containing Bi and Fe and having a rhombohedral perovskite structure and a complex oxide containing Ba and Ti and having a tetragonal perovskite structure, a second component formed of a complex oxide containing Bi, K, and Ti and having a tetragonal perovskite structure, and a third component formed of a complex oxide containing Bi, Mg, and Ti and having a rhombohedral perovskite structure.