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. 30, 1996
Filed:
May. 31, 1995
Kouichi Masaki, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A magnetic recording medium comprising a nonmagnetic support having thereon a magnetic layer comprising a ferromagnetic metal powder and a binder resin, or having in this order thereon a nonmagnetic layer comprising a nonmagnetic material powder and a binder, and a magnetic layer comprising a ferromagnetic metal powder and a binder resin, wherein the magnetic layer exhibits a coercive force of from 2,000 to 3,000 Oe, and has a thickness of from 0.05 to 0.3 .mu.m, a surface roughness of from 1 to 3 nm, and the proportion of magnetizable components that are inverted by an external magnetic field of not less than 3,000 Oe in the magnetic layer is from 1% to (0.0225.times.(coercive force of magnetic layer)-38)% as determined by the remanence curve of the magnetic layer.