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:
Feb. 14, 1989
Filed:
May. 29, 1987
Applicant:
Inventors:
Assignees:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Sanken Airpax Ltd., Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01P / ;
U.S. Cl.
CPC ...
324167 ; 324173 ; 324208 ;
Abstract
An electromagnetic power generating type rotation sensor has a magnetic pole which is divided into an inner magnetic pole piece and an outer magnetic pole piece (3a, 13a) located in a position close to an outer peripheral part or a side part of a magnetic rotator. The inner magnetic pole piece (3b, 13b) is located adjacent to the outer magnetic pole piece but inside the sensor so as not to be exposed to the external environment.