Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 26, 2008
Patent Application Number
10717963
Date Filed
November 21, 2003
Patent Primary Examiner
Patent abstract
A phase-change optical recording medium includes a phase-change optical recording film that permits reversible phase change between a crystalline phase and an amorphous phase upon irradiation with light, and an interface film formed of hafnium oxide, or a mixture of hafnium oxide and at least one oxide selected from the group consisting of cerium oxide, titanium oxide and zirconium oxide, and formed in contact with at least one surface of the phase-change optical recording film.
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