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:
Aug. 23, 1983
Filed:
Jun. 03, 1982
Applicant:
Inventors:
Toshiaki Izumi, Tokyo, JP;
Fumio Maruta, Tokyo, JP;
Takayoshi Kobuke, Tokyo, JP;
Kiyoshi Noguchi, Tokyo, JP;
Assignee:
TDK Electronics Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
428694 ; 427128 ; 427132 ; 427251 ; 428900 ;
Abstract
A magnetic recording medium having a ferromagnetic layer formed by oblique vapor deposition wherein the residual magnetic flux density in the width direction of the recording medium is larger than the residual magnetic flux density in the longitudinal direction shows the SN ratio in a practical level at recording in the width direction.