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:
Sep. 14, 2004
Filed:
Sep. 23, 2002
Applicant:
Inventor:
Tatsuo Nakajima, Iwata, JP;
Assignee:
NTN Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 1/908 ;
U.S. Cl.
CPC ...
F16C 1/908 ;
Abstract
To provide a magnetic encoder that has an increased detecting sensitivity, can be thin-walled, have an increased reliability and an increased durability, can easily be handled during manufacture and assembly and is excellent in productivity, the magnetic encoder ( ) includes a multi-pole magnet element ( ) having opposite magnetic poles alternating with each other in a circumferential direction, and a core metal ( ) for supporting the multi-pole magnet element ( ). The multi-pole magnet element ( ) is made of a sintered element prepared by sintering a powdery mixture of a powdery magnetic material and a powdery non-magnetic metallic material.