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:
Feb. 17, 1987
Filed:
May. 31, 1984
Applicant:
Inventors:
Jan A Markvoort, Eindhoven, NL;
Wilhelmus G Rippens, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369275 ;
Abstract
Optical recording element in which a transparent supporting substrate of a synthetic resin or provided with a coating layer of synthetic resin has a chalcogenide recording layer provided on one side of the synthetic resin and which recording layer is protected by damage from continuous laser light used for reading information recorded in the recording layer by a thermally conductive layer of chromium present on at least one surface of the chalcogenide recording layer.