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:
May. 28, 1985
Filed:
May. 14, 1981
Applicant:
Inventors:
Seitoku Saito, Tokyo, JP;
Toshiaki Izumi, Tokyo, JP;
Takayoshi Kobuke, Tokyo, JP;
Hiroshi Sugihara, Tokyo, JP;
Assignee:
TDK Electronics Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
428611 ; 428678 ; 428679 ; 428680 ; 428681 ; 428928 ;
Abstract
A magnetic recording medium has plural magnetic layers on a non-magnetic substrate. The magnetic particles are orientated in substantially the same tilt direction for major axes of the particles in each magnetic layer and in cross tilt directions for major axes of the particles in the adjacent magnetic layers.