Optical information recording medium
AssigneeSony Corporation
InventorsHiroshi Tabata, Takeshi Miki
Life of this patent
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Abstract
An optical information recording medium includes: a substrate; two or more information signal layers provided on the substrate; and a cover layer provided on the information signal layers. At least one of the two or more information signal layers is provided with an inorganic recording layer including Pd oxide, a first protective layer provided on a first main surface of the inorganic recording layer, and a second protective layer provided on a second main surface of the inorganic recording layer. And at least one of the first protective layer and the second protective layer includes a compound oxide of Si oxide, In oxide and Zr oxide as a main component.
Claims8
An optical information recording medium comprising:
- a substrate;
- two or more information signal layers provided on the substrate;
- and
- a cover layer provided on the information signal layers,
- wherein at least one layer out of the two or more information signal layers is provided with an inorganic recording layer including Pd oxide, a first protective layer provided on a first main surface of the inorganic recording layer, and a second protective layer provided on a second main surface of the inorganic recording layer, and
- at least one of the first protective layer and the second protective layer includes a compound oxide of Si oxide, In oxide and Zr oxide as a main component.
An optical information recording medium comprising:
- a substrate;
- two or more information signal layers provided on the substrate;
- and
- a cover layer provided on the information signal layers,
- wherein at least one layer out of the two or more information signal layers is provided with an inorganic recording layer including Pd oxide, a first protective layer provided on a first main surface of the inorganic recording layer, and a second protective layer provided on a second main surface of the inorganic recording layer, and
- at least one of the first protective layer and the second protective layer includes a compound oxide of In oxide, Ga oxide and Zn oxide as a main component.
Dependencies are inferred from the claim text.