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. 13, 1993
Filed:
Jan. 09, 1992
Applicant:
Inventors:
Gyou-Tae Park, Choongchungnam-Do, KR;
Dong-Soo Lee, Seoul, KR;
Assignee:
SKC Limited, Kyongi-Do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
430276 ; 430271 ; 430275 ; 430495 ; 430945 ; 369283 ;
Abstract
An optical recording medium is disclosed herein which comprises an antistatic and scratch-resistant metal oxide layer on the light incident side of a transparent substrate. The metal oxide layer has a light transmittance high enough to transmit at least a portion of the light beam therethrough and a sheet resistivity low enough to suppress the substrate from getting electrostatic. Such a metal oxide layer can be deposited either directly, or through an interfence layer, on the substrate with a thickness of 100 to 1,000 Angstrom.