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:
Dec. 05, 1995
Filed:
Feb. 14, 1994
Masayuki Sato, Nagoya, JP;
Toshihiro Kobayashi, Nagoya, JP;
Toru Watanabe, Toyota, JP;
Katsuyoshi Mizumoto, Kuwana, JP;
Hiroshi Kajino, Nishikasugai, JP;
Hideya Kurachi, Toyota, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A sensor for detecting rotational movement includes a cylindrical shaped resonator having an outer surface, a first pair of diametrically opposed driving electrodes provided on the outer surface of the resonator, a second pair of diametrically opposed driving electrodes provided on the outer surface of the resonator, a device for generating concurrently a first force and a second force at each of the first driving electrodes and each of the second driving electrodes, respectively, in such a manner that the first force reverses its direction along the radius of the resonator at a regular interval, the second force reverses its direction along the radius of the resonator at a regular interval, and the direction of the first force is opposite to the direction of the second force.