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:
Sep. 01, 2009
Filed:
Dec. 02, 2003
Ludovic Poupinet, Sassenage, FR;
Bérangère Hyot, Grenoble, FR;
Marie-françoise Armand, Vaulnaveys-le-Haut, FR;
Ludovic Poupinet, Sassenage, FR;
Bérangère Hyot, Grenoble, FR;
Marie-Françoise Armand, Vaulnaveys-le-Haut, FR;
Commissariat a l'Energie Atomique, Paris, FR;
MPO International, Averton, FR;
Abstract
The optical recording medium comprises an active layer of inorganic material, able to undergo deformations due to the effect of an optical radiation, presenting a front face designed to receive an optical radiation during writing operations and a rear face. An additional metal layer is arranged on the rear face of the active layer. The additional metal layer preferably has a thickness comprised between 9 nanometers and 12 nanometers. The inorganic material of the active layer can be a tellurium and zinc alloy comprising an atomic percentage of between 60% and 70% of zinc and between 30% and 40% of tellurium, and preferably 65% of zinc and 35% of tellurium. The medium can comprise a semi-reflecting layer arranged on the front face of the active layer and/or a protective layer made of polymer material on the rear face.