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:
Mar. 29, 1988
Filed:
Sep. 23, 1983
Applicant:
Inventors:
Koichi Saitoh, Kanagawa, JP;
Teruhiko Itami, Kanagawa, JP;
Toshifumi Kimoto, Kanagawa, JP;
Kiyoshi Horie, Kanagawa, JP;
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346 744 ; 346 742 ;
Abstract
In a magnetically recording and erasing the magnetic latent image on the magnetic recording medium, the magnetic recording medium includes a base layer, a first magnetic layer in which a repetitive magnetic pattern is in advance formed, and a second magnetic layer on which the magnetic latent image to be formed is thermo-magnetically formed. A method of erasing the magnetic latent image on the second magnetic layer includes the steps of simultaneously applying an external magnetic field and heat to be thermally magnetized layer of a magnetic recording medium.