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. 14, 2019
Filed:
Oct. 04, 2016
Seiko Epson Corporation, Tokyo, JP;
Yusuke Yamamoto, Minowa-machi, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A piezoelectric vibrator element includes a piezoelectric substrate including a vibrating part and a fixation part, a first excitation electrode including a first foundation electrode layer disposed on a first surface of the vibrating part, and a first upper electrode layer disposed on the first foundation electrode layer, and a second excitation electrode including a second foundation electrode layer disposed on a second surface of the vibrating part, opposed to the first surface, and a second upper electrode layer disposed on the second foundation electrode layer, wherein a ratio t/Tbetween a thickness tof the second upper electrode layer and a thickness Tof the vibrating part is not lower than 1.4% and not higher than 2.4%.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile