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:
Aug. 09, 2011
Filed:
Dec. 18, 2006
Yoshitaka Sakaue, Osaka, JP;
Rie Kojima, Osaka, JP;
Takashi Nishihara, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An information recording medium of the present invention includes recording layersandwhose phase can change by an optical or an electrical system so as to be detectable, and interface layersand, which are in contact with the recording layersand, to serve as oxide layers. The recording layercontains a Ge—Bi—Te-M material represented by a formula: GeBiTeM(atom %), where M denotes at least one element selected from Al, Ga, In and Mn, and α, β and γ satisfy 25≦α≦60, 0<β≦18, 35≦γ≦55, and 82≦α+β+γ<100. The interface layersandcontain at least one oxide of the element M contained in the recording layersand