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:
Jul. 01, 1997
Filed:
Jun. 28, 1995
Applicant:
Inventors:
Yoshio Tawara, Tokyo, JP;
Katsushi Tokunaga, Kanagawa-ken, JP;
Hideo Kaneko, Kanagawa-ken, JP;
Yoshiaki Shimizu, Gunma-ken, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428 643 ; 4286 / ; 4286 / ; 428900 ; 369 13 ; 365122 ; 360122 ;
Abstract
The recording sensitivity can be improved of a magneto-optical recording medium having a laminar structure consisting of a first dielectric layer, a recording layer, a second dielectric layer and reflecting layer successively formed on a transparent substrate plate by forming the reflecting layer from an alloy consisting of aluminum and from 0.05 to 3 atomic % of a rare earth element such as neodymium and gadolinium in place of pure aluminum as in conventional magneto-optical recording media.