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. 02, 1991
Filed:
May. 01, 1989
Applicant:
Inventors:
Masashi Somezawa, Miyagi, JP;
Masakazu Muroyama, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428694 ; 428900 ; 252 6254 ; 106 1505 ;
Abstract
A magnetic recording medium having a magnetic layer on one surface of a non-magnetic base and having as required a backcoat layer on the other surface, having at least one of p-tolyldiiodemethylsulfone, 2,3,3-triiodoallyl alcohol and 2-methoxycarbonylaminobenzimidazole and 2-methoxycarbonylaminobenzimidazolium salt as an anti-fungus agent on or in the magnetic layer and/or the backcoat layer.