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:
Apr. 18, 2017
Filed:
Nov. 14, 2014
Seiko Epson Corporation, Tokyo, JP;
Akinori Yamada, Ina, JP;
Takashi Yamazaki, Shiojiri, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A resonator element includes a resonator blank having a base portion, a vibrating arm, a linking portion, and a connecting portion connects the base portion and the linking portion to each other, in which, when a thickness of the resonator blank is set to T, a width of the base portion is set to W1, and a width of the connecting portion is set to W2, a relationship of 50 μm≦T≦210 μm is satisfied, and a relationship of 0.067≦W2/W1≦0.335 is satisfied, and in which, when a width of the arm section of the vibrating arm is set to W3, and a width of the hammer head is set to W4, a relationship of W4≧2.8×W3 is satisfied.