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:
Apr. 20, 2004
Filed:
Feb. 06, 2002
Applicant:
Inventors:
Assignee:
Kayaba Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/30 ;
U.S. Cl.
CPC ...
G01B 7/30 ;
Abstract
A rotation angle sensor comprises permanent magnets having opposite poles facing each other, and a flux density detecting unit which performs relative rotation between the permanent magnets . Opposite magnetic pole surfaces of the permanent magnets are formed in a curved shape so that the flux density between the permanent magnets can be suitably distributed. In this way, the resolution of the sensor can be increased without increase in cost.