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:
Nov. 19, 1991
Filed:
Jul. 31, 1990
Applicant:
Inventors:
Narito Goto, Tokyo, JP;
Yasuo Ando, Tokyo, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428212 ; 428336 ; 428694 ; 428900 ;
Abstract
A magnetic recording medium having excellent properties is disclosed. The recording medium comprises a non-magnetic support and provided thereon at least two magnetic layers, wherein the lower magnetic layer of the at least two layers has a Young's modulus which is larger than that of the upper magnetic layer and is not less than 800 kg/mm.sup.2.