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:
Oct. 18, 1994
Filed:
Dec. 21, 1992
Applicant:
Inventors:
Koji Choki, Itami, JP;
Masaharu Saito, Ibaraki, JP;
Kunimasa Kobayashi, Narashino, JP;
Toru Tachiwada, Koshigaya, JP;
Katsufumi Awaya, Kawaguchi, JP;
Assignee:
Sumitomo Bakelite Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
4284259 ; 428482 ; 428522 ; 428523 ; 4286 / ; 428900 ; 235493 ; 283 82 ; 283904 ; 360-2 ;
Abstract
Disclosed is a magnetic card which comprises a substrate of a thermoplastic resin and a magnetic recording layer provided on the whole surface of at least one side of the substrate, wherein necessary matters such as letters and figures can be formed in a given area by embossing treatment, and wherein the magnetic recording layer consists of a magnetic film which contains 70% by weight or more of magnetic powders having a coercive force of 300 Oe or higher and which has a tensile break elongation of 50% or more.