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. 12, 1994
Filed:
Aug. 07, 1991
Applicant:
Inventor:
Kuniaki Yoshimura, Kumagaya, JP;
Assignee:
Hitachi Metals, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01B / ;
U.S. Cl.
CPC ...
32420722 ; 32420724 ; 32420725 ; 324174 ;
Abstract
A coated magnetic recording member for use in a magnetic encoder includes a non-magnetic substrate and a magnetic recording medium carried on the non-magnetic substrate. The magnetic recording medium of a magnetic film formed of a magnetic coating material which contains magnetic barium-ferrite powder. A magnetic encoder includes the magnetic recording member on which magnetic recording is conducted, and a magnetic sensor disposed in opposed relation to the magnetic recording medium.