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. 31, 1995
Filed:
Jan. 11, 1994
Applicant:
Inventors:
Harald Keller, Ludwigshafen, DE;
Ulrich Jaeger, Harthausen, DE;
Helmut Steininger, Worms, DE;
Helmut Kopke, Weisenheim, DE;
Klaus D Schomann, Ludwigshafen, DE;
Hans-Peter Schildberg, Mannheim, DE;
Assignee:
BASF Magnetics GmbH, Mannheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
4286 / ; 428421 ; 428422 ; 4286 / ; 4286 / ; 4286 / ; 428695 ; 428900 ; 428704 ; 568 18 ; 568 21 ; 568 22 ; 568 29 ; 568 31 ; 568303 ; 570101 ; 570123 ; 570136 ;
Abstract
A magnetic recording medium comprises a nonmagnetic substrate and at least one ferromagnetic metal layer applied thereon and a protective layer formed on this metal layer and consisting of a compound which consists of an unfluorinated or partially fluorinated alkyl radical and a disulfide, hydroxyl or keto group.