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. 07, 2001
Filed:
Apr. 27, 1999
Applicant:
Inventors:
Masakata Kanbe, Aichi-ken, JP;
Hitoshi Iwata, Aichi-ken, JP;
Katsuhiro Minami, Aichi-ken, JP;
Katsuya Kogiso, Aichi-ken, JP;
Takashi Suzuki, Aichi-ken, JP;
Masahiro Taniguchi, Aichi-ken, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/30 ; G01D 5/14 ;
U.S. Cl.
CPC ...
G01B 7/30 ; G01D 5/14 ;
Abstract
A rotation detector that detects rotational position with high precision. The rotation detector includes a rotor having a shaft. Projections are located at predetermined intervals on the periphery of the rotor and extend in an axial direction. The rotation detector further includes magnets and magnetism detecting elements respectively detecting magnetism of the magnets. At least one of the magnets and the detecting elements are arranged between the projections and the shaft at predetermined intervals.