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:
Dec. 10, 1991
Filed:
Oct. 01, 1990
Applicant:
Inventors:
Takeo Ono, Yokohama, JP;
Kou Yoneda, Kawasaki, JP;
Hitoshi Oda, Yokohama, JP;
Mamoru Miyawaki, Tokyo, JP;
Toyoshige Sasaki, Funabashi, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365 10 ; 365 11 ;
Abstract
A magnetic memory has a substrate, a magnetic film provided on the substrate including a recording medium capable of producing a recording carrier, and a light waveguide layer on the magnetic film or on that surface of the substrate which is opposite to a surface on which the magnetic film is present. Recording and reproduction of information are effected relative to the magnetic film by a light propagated through the light waveguide layer.