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:
Sep. 13, 1983
Filed:
Jul. 23, 1982
Applicant:
Inventor:
Fujio Shibata, Komoro, JP;
Assignee:
TDK Electronics Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
428458 ; 252 6254 ; 427127 ; 427128 ; 427130 ; 427132 ; 4284744 ; 428694 ; 428695 ; 428900 ;
Abstract
A magnetic recording medium, having formed on the surface of a non-magnetic substrate, a layer of the dispersion in a binder vehicle of magnetic particles having the surface thereof coated with a polyaminoamide phosphate.