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:
Feb. 11, 1997
Filed:
Feb. 24, 1995
Applicant:
Inventors:
Assignee:
Toyo Ink Manufacturing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428323 ; 428328 ; 428329 ; 4284259 ; 4286 / ; 428900 ;
Abstract
A magnetic recording medium comprising a magnetic layer and a backing layer respectively on surfaces of a non-magnetic support which are opposite to each other, and a coating material for forming the backing layer. The backing layer is formed from the coating material containing a fatty acid salt having 5 to 11 carbon atoms with therefor a transition metal, a dispersant, a binder, and a filler. The backing layer provides improved properties, such as increased durability, smoothness of surface, electric conductivity, and light shielding.