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:
Aug. 10, 2021
Filed:
Nov. 27, 2018
Seiko Epson Corporation, Tokyo, JP;
Makoto Furuhata, Matsumoto, JP;
Abstract
A physical quantity sensor includes a movable body and a spring that supports the movable body. The spring includes an arm having an elongate shape in a first direction, and a first beam and a second beam that are adjacent to the arm and are disposed in the first direction. An end portion of the first beam on the second beam side and an end portion of the second beam on the first beam side are disposed side by side in a second direction orthogonal to the first direction. The beams preferably are protective of the side surfaces of the spring arm, function to enable arm machining accuracy, reduce shape deviations, and reduce the occurrence of quadrature. The sensor exemplarily may detect angular rate or acceleration.