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:
Oct. 25, 1994
Filed:
Feb. 18, 1993
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A magnetic recording medium comprising (A) a non-magnetic support; (B) a non-magnetic layer comprising mainly a non-magnetic powder and a binder resin; and (C) a magnetic layer comprising mainly a ferromagnetic powder and a binder resin, wherein said non-magnetic layer is coated on said non-magnetic support; and said magnetic layer is coated over the previously formed non-magnetic layer while the previously formed non-magnetic layer is still wet; the thickness of the magnetic layer is 0.6 .mu.m or less; the Young's Modulus of the magnetic layer is from 50% to 95% of the Young's Modulus of the non-magnetic layer, and the glass transition temperature of the magnetic layer is lower than that of the non-magnetic layer. The magnetic recording medium has good electromagnetic characteristics and excellent running stability and running durability. It is suitable as a disc medium for high-density recording at a shortest recording wavelength of 1.5 .mu.m or less, displaying excellent overwriting characteristic in high-density recording. The running reliability of the magnetic recording medium is good.