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. 17, 2010
Filed:
Apr. 09, 2007
Applicants:
Kouji Oike, Kyoto, JP;
Kiyotaka Uehira, Osaka, JP;
Kiyotaka Sasanouchi, Osaka, JP;
Inventors:
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 5/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rotation angle sensor is provided with a shaft portion having a torsion bar, a rotation angle sensing portion for detecting rotation angle of the shaft portion, and a torque sensing portion for detecting angle of torsion of the torsion bar. The rotation angle sensing portion and the torque sensing portion improve their own detecting accuracies by using each other's detecting result, whereby the rotation angle sensor can detect rotation angle and angle of torsion of a multi-turn rotatable body with high accuracy and high resolution.