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:
Jan. 07, 2020
Filed:
Jan. 23, 2017
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Takayuki Kikuchi, Chino, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/10 (2006.01); H03B 5/32 (2006.01); H03H 3/02 (2006.01); H03H 9/13 (2006.01); H03H 9/19 (2006.01); H03L 1/02 (2006.01); H03H 9/02 (2006.01); H03H 9/05 (2006.01);
U.S. Cl.
CPC ...
H03B 5/32 (2013.01); H03H 3/02 (2013.01); H03H 9/02157 (2013.01); H03H 9/0547 (2013.01); H03H 9/10 (2013.01); H03H 9/1021 (2013.01); H03H 9/13 (2013.01); H03H 9/19 (2013.01); H03L 1/028 (2013.01); H03B 2200/0018 (2013.01); H03B 2200/0022 (2013.01);
Abstract
A resonator element includes an SC-cut quartz crystal substrate having a thickness t, and an excitation electrode disposed on a principal surface of the quartz crystal substrate, the principal surface being square or rectangular in shape, a side of which has a length L, 28≤L/t≤60 is satisfied.