Optical recording medium
AssigneeTDK Corporation
InventorsHironori Kakiuchi, Hiroyasu Inoue
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Abstract
An optical recording medium includes a substrate and a recording layer in which data can be recorded by projecting a laser beam thereonto, the recording layer including a first recording film containing an element selected from the group consisting of Si, Ge, C, Sn, Au, Zn and Cu as a primary component and a second recording film containing Cu as a primary component. The thus constituted optical recording medium has an excellent initial recording characteristic and can store recorded data in a good condition over the long term.
Claims24
An optical recording medium comprising a substrate and a recording layer in which data can be recorded by projecting a laser beam thereonto, the recording layer including a first recording film containing an element selected from the group consisting of Si, Ge, C, Sn, Au, Zn and Cu as a primary component and a second recording film containing Ti as a primary component.
An optical recording medium comprising a substrate and a plurality of information recording layers in which data can be recorded by projecting a laser beam thereonto, at least one information recording layer other than a information recording layer farthest from a light incidence plane through which a laser beam enters including a first recording film containing an element selected from the group consisting of Si, Ge, C, Sn, Au, Zn and Cu as a primary component and a second recording film containing Ti as a primary component.
Dependencies are inferred from the claim text.