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:
Apr. 15, 1986
Filed:
Nov. 01, 1984
Applicant:
Inventors:
Hiroshi Ota, Komoro, JP;
Kinji Sasaki, Hita, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428403 ; 252 6254 ; 360134 ; 360135 ; 360136 ; 427128 ; 428407 ; 428328 ; 428329 ; 428694 ; 428900 ;
Abstract
A magnetic recording medium having a magnetic layer which is formed by dispersing a magnetic powder and further an abrasive when necessary into a binder containing a sugar alcohol. The magnetic recording medium has excellent glossiness, squareness ratio and other surface properties due to the improvement of dispersibility of the magnetic powder and/or an abrasive when necessary.