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:
Jul. 04, 1989
Filed:
Apr. 14, 1987
Applicant:
Inventors:
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428694 ; 427131 ; 427355 ; 428695 ; 428900 ;
Abstract
A magnetic recording medium comprising a nonmagnetic support, a magnetic recording layer provided on the support which comprises a binder and a ferromagnetic powder dispersed therein, and a monomolecular film or a built-up film provided on the magnetic recording layer. The monomolecular or built-up film comprises a saturated fatty acid having 10-24 carbon atoms and/or its alkali metal salt which is oriented vertically to the plane of the film. A process for the preparation of the same is also disclosed.