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:
Mar. 24, 1987
Filed:
Apr. 04, 1986
Applicant:
Inventors:
Kiyomi Ejiri, Odawara, JP;
Shigeo Komine, Odawara, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428695 ; 252 6254 ; 427128 ; 428323 ; 428328 ; 428329 ; 428694 ; 428900 ;
Abstract
A magnetic recording medium such as a magnetic recording disk or a magnetic recording tape comprising a nonmagnetic support and a magnetic recording layer provided on said support, said magnetic recording layer comprising a nonmagnetic inorganic powder and a ferromagnetic metal powder of a specific surface area in the range of 35-65 m.sup.2 /g dispersed in a binder, which is characterized in that said magnetic recording layer contains an alkyl ester of a fatty acid and an alkoxyalkyl ester of a fatty acid in amounts in the ranges of 5-15 wt. % and 0.5-10 wt. %, respectively, based on the amount of the ferromagnetic metal powder.