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:
Nov. 19, 1996
Filed:
Sep. 13, 1993
Applicant:
Inventors:
Yukio Watanabe, Machida, JP;
Shinichi Tachibana, Machida, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; B32B / ;
U.S. Cl.
CPC ...
428141 ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 428900 ; 4286 / ;
Abstract
A magneto-optical recording medium that exhibits an excellent ability to achieve flying stability for the associated magnetic head during recording operations and can effectively prevent adsorption of the magnetic head on its protective layer, includes a substrate, a recording layer with a magneto-optical recording film, and a protective layer, which are arranged in this order, wherein that surface of the protective layer which is not opposed to the recording layer has a surface roughness of not less than 0.1 .mu.m but not more than 0.85 .mu.m as measured in terms of center line average height.