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US 2012/0027979 A1Published application
Optical recording medium
AssigneeSony Corporation
InventorsKotaro Kurokawa, Shigeki Takagawa
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Abstract
An optical recording medium includes a support substrate, and a semi-transmissive recording layer including a first dielectric layer, a semi-transmissive semi-reflective layer, a second dielectric layer, a phase-change recording material layer, and a third dielectric layer which are laminated in that order from the support substrate side. The semi-transmissive semi-reflective layer is composed of silver, and the first dielectric layer includes a composite oxide layer using niobium oxide.
Claims5
An optical recording medium comprising:
- a support substrate;
- and
- a semi-transmissive recording layer including a first dielectric layer, a semi-transmissive semi-reflective layer, a second dielectric layer, a phase-change recording material layer, and a third dielectric layer which are laminated in that order from the support substrate side,
- wherein the semi-transmissive semi-reflective layer is composed of silver;
- and
- the first dielectric layer includes a composite oxide layer containing niobium oxide.
3 more elements
Dependencies are inferred from the claim text.