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:
Aug. 02, 1983
Filed:
Feb. 11, 1982
Applicant:
Inventors:
Masashi Somezawa, Sendai, JP;
Shigeo Kimura, Tagajyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; H01F / ;
U.S. Cl.
CPC ...
428341 ; 4284744 ; 4284752 ; 428695 ; 428900 ;
Abstract
The magnetic recording media are constructed such that a lubricating layer containing an amine compound represented by the formula: ##STR1## (wherein R is a hydrocarbon residue having from 7 to 21 carbon atoms and n is an integer ranging from 1 to 10) is disposed on at least one surface of a non-magnetic substrate with a magnetic layer. The magnetic recording media have an improved lubricating characteristics with a low friction coefficient.