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:
Jan. 17, 1978
Filed:
Oct. 22, 1976
Applicant:
Inventors:
Masahiro Yanagisawa, Tokyo, JA;
Yoji Suganuma, Tokyo, JA;
Assignee:
Nippon Electric Company, Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; B32B / ; B05D / ;
U.S. Cl.
CPC ...
428 64 ; 360131 ; 360135 ; 427130 ; 427131 ; 427399 ; 428 65 ; 428420 ; 428429 ; 428447 ; 428900 ;
Abstract
Magnetic storage means which may be a disc having a magnetic storage layer coated with a protective layer. The protective layer, which is preferably an inorganic oxide material, protects the magnetic storage layer from corrosion. A lubricant is applied to the protective layer and serves to reduce wearing due to frictional drag between the disc and a cooperating magnetic head (or heads). The lubricant is oriented so as to make very good adherence with the oxide sublayer and thereby prevent removal of the lubricant through continued use and/or cleaning.