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:
Nov. 23, 2021
Filed:
Feb. 20, 2020
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/05 (2006.01); H03H 9/02 (2006.01); H03H 9/19 (2006.01); H03H 9/10 (2006.01); H03H 9/13 (2006.01);
U.S. Cl.
CPC ...
H03H 9/0519 (2013.01); H03H 9/02102 (2013.01); H03H 9/02133 (2013.01); H03H 9/0557 (2013.01); H03H 9/1021 (2013.01); H03H 9/13 (2013.01); H03H 9/19 (2013.01);
Abstract
A resonator element includes a quartz crystal substrate including a first surface along an X axis which is an electrical axis, a second surface along the X axis, and a side surface, a first excitation electrode, a second excitation electrode, a first coupling electrode, a second coupling electrode, a first extraction electrode that couples the first excitation electrode and the first coupling electrode, and a second extraction electrode that couples the second excitation electrode and the second coupling electrode. In plan view, a virtual extension region is obtained by extending the first excitation electrode along the X axis.