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. 02, 2018
Filed:
Feb. 25, 2014
Seiko Epson Corporation, Tokyo, JP;
Makoto Furuhata, Matsumoto, JP;
Seiko Epson Corporation, , JP;
Abstract
A gyro sensor capable of suppressing influence of the same phase mode on a vibration mode includes a vibrating body, a first spring structure portion that extends in a direction along a first axis and is connected to the vibrating body, first and second vibrating portions that are disposed in parallel to each other in the direction along the first axis and are excited and vibrated in an opposite phase to each other, and a second spring structure portion that extends in the direction along the first axis and is connected to the first and second vibrating portions, in which a first spring constant K1 of the first spring structure portion is smaller than a second spring constant K2 from a middle point at which a length between both ends of the second spring structure portion is equally divided into two to one end of the second spring structure portion.