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:
Mar. 18, 1986
Filed:
Aug. 27, 1984
Applicant:
Inventor:
Jean Cornet, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365126 ; 369109 ; 369275 ; 430348 ;
Abstract
The invention relates to thermo-optical inscription or writing on a data support comprising an organic intermediate layer (2) covered by a metal layer (3). The invention relates to a writing process consisting of creating in the metal layer 3 a plastic deformation as a result of the gaseous pressure exerted due to the local thermal degradation of intermediate layer 2. Inscription produces a bulge-like impression without perforating the metal layer (3). The invention more particularly applies to the thermo-optical inscription and storage of data on an optically readable support by phase or amplitude contrast.