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. 02, 2018
Filed:
Mar. 26, 2015
Seiko Epson Corporation, Tokyo, JP;
Jiro Tsuruno, Nagano, JP;
Tsukasa Funasaka, Nagano, JP;
Tomoaki Nakamura, Nagano, JP;
Hiromu Miyazawa, Nagano, JP;
Hiroshi Ito, Nagano, JP;
Masayoshi Yamada, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A piezoelectric element includes a vibrating film, a piezoelectric body, a first electrode, a second electrode, and a groove. The piezoelectric body is arranged upon the vibrating film. The first electrode is arranged upon the piezoelectric body. The second electrode is arranged upon the piezoelectric body and at a position that is separated from the first electrode. The groove is located between the first electrode and the second electrode and splits a surface of the piezoelectric body in two, as seen in plan view from a thickness direction of the vibrating film.