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:
Oct. 13, 1987
Filed:
Apr. 28, 1986
Applicant:
Inventors:
Kuniharu Fujiki, Mito, JP;
Ikuo Matsumoto, Mito, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428 64 ; 252 6254 ; 427128 ; 428 65 ; 4284259 ; 428480 ; 428694 ; 428695 ; 428900 ;
Abstract
Magnetic recording mediums comprising a nonmagnetic substrate and a magnetic recording layer formed on at least one side of the substrate. The magnetic recording layer is made of a composition which comprises magnetic particles dispersed in a combination of polyester and polyurethane resins and oleic acid, so that the magnetic medium is significantly improved in durability and lubricating property.