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:
May. 07, 1996
Filed:
Apr. 11, 1994
Isao Sasaki, Tomobe, JP;
Kazuhiro Takeda, Mito, JP;
Masamichi Saito, Mito, JP;
Osamu Kobayashi, Tomobe, JP;
Kenichi Kikuchi, Mito, JP;
Shigeru Nakano, Mito, JP;
Victor Company Of Japan, Ltd., Yokohama, JP;
Abstract
A magnetic recording medium comprising an undercoat layer formed on one side or both sides of a non-magnetic substrate and a magnetic layer formed on the undercoat layer, characterized in that the undercoat layer contains powders having an average particle size of 0.5 to 5.0 .mu.m and an aspect ratio of 5.0 or more and a magnetic recording medium comprising a magnetic layer formed on a non-magnetic substrate, characterized in that the non-magnetic substrate contains powders having an average particle size of 0.5 to 5.0 .mu.m and an aspect ratio of 5.0 or more.