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:
May. 31, 2016
Filed:
Dec. 24, 2014
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Akinori Yamada, Ina, JP;
Shuhei Yoshida, Minowa-machi, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/21 (2006.01); G01L 1/10 (2006.01); H03H 9/05 (2006.01); H03H 9/10 (2006.01); H03H 9/215 (2006.01); H03H 3/02 (2006.01);
U.S. Cl.
CPC ...
G01L 1/106 (2013.01); H03H 9/0547 (2013.01); H03H 9/1014 (2013.01); H03H 9/215 (2013.01); H03H 2003/026 (2013.01);
Abstract
A resonator element satisfies, when a shortest distance between a first end portion and a second end portion of a base is Wb [m], an effective width of the base in a Y axis direction is We [m], and a Q value of the resonator element is Q, the following expressions (A) and (B).={(ρ·)/(·Θ)}×[{1+(2·ρ·/(π·))}/(2·ρ·/(π·))]  (A)0.81≦≦1.70  (B)