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. 13, 1998
Filed:
Oct. 10, 1995
Applicant:
Inventors:
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428422 ; 428457 ; 4286 / ; 4286 / ; 428900 ;
Abstract
The present invention provides a magnetic recording medium, which comprises a salt of a perfluoropolyether modified with phosphoric acid at molecular terminal and an alkylamine on a magnetic layer having a ferromagnetic metal thin film at least on one side of a non-magnetic support member or a protective film formed on the magnetic layer, and it shows excellent properties under any operating conditions including low temperature and low humidity.