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:
Sep. 10, 2024
Filed:
May. 18, 2021
Seiko Epson Corporation, Toyko, JP;
Ryuta Nishizawa, Nagano, JP;
Atsushi Matsuo, Shiojiri, JP;
Keiichi Yamaguchi, Ina, JP;
Taku Matsunaga, Minowa, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A vibration device includes a quartz substrate including a first vibration section, a second vibration section, and a third vibration section, a pair of first excitation electrodes formed at two principal surfaces of the quartz substrate, a pair of second excitation electrodes so formed as to sandwich the second vibration section in the thickness direction of the quartz substrate, and a pair of third excitation electrodes so formed as to sandwich the third vibration section in the thickness direction of the quartz substrate. At least one of the pair of second excitation electrodes is formed at a first inclining surface that inclines with respect to the two principal surfaces. At least one of the pair of third excitation electrodes is formed at a second inclining surface that inclines with respect to the two principal surfaces. The second inclining surface inclines with respect to the first inclining surface.