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:
Apr. 09, 1996
Filed:
Aug. 26, 1994
Applicant:
Inventors:
Assignee:
Sony Corporation, , JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; B32B / ;
U.S. Cl.
CPC ...
428 643 ; 428 646 ; 428 651 ; 428 652 ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 428695 ; 428900 ;
Abstract
A magneto-optical disc having an optical-magnetic recording layer, formed on the surface of a transparent base plate opposite its beam incident surface is disclosed, wherein a layer excellent in lubriciousness is formed in superimposition on the optical-magnetic recording layer to enable the magnetic head to be in direct sliding contact with the disc surface to provide for stable recording and improved recording performance as well as to reduce adverse effects caused by deposition of foreign matter such as dust and dirt.