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:
Mar. 05, 2019
Filed:
Mar. 29, 2016
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Keiji Nakagawa, Minowa, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 19/5607 (2012.01); H03H 9/215 (2006.01); H03H 9/05 (2006.01);
U.S. Cl.
CPC ...
G01C 19/5607 (2013.01); H03H 9/0542 (2013.01); H03H 9/0547 (2013.01); H03H 9/215 (2013.01);
Abstract
A vibrator element includes a drive arm. The drive arm includes an upper surface, a lower surface, a groove opened to the upper surface, and a groove opened to the lower surface. The upper surface is disposed to be deviated by Lon a +X axis side from the lower surface. The groove is disposed to be deviated by Lon the +X axis side from the groove. Land Lsatisfy a relation of L/L>0.