Optical recording disk
AssigneeTDK Corporation
InventorsHiroyuki Arioka, Toshiki Aoi, Akio Ogawa, Hideki Dohi
Life of this patent
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Abstract
An optical recording disk includes a dye base recording layer, an intermediate layer, and a reflective layer on a substrate in the described order. The reflective layer is composed of one or more metal elements, for example, copper alloy, and the intermediate layer contains a compound of the one metal element or a compound of at least one of the metal elements, for example copper oxide. The intermediate layer minimizes undesirable interactions between the recording and reflective layers.
Claims6
An optical recording disk comprising on a substrate a dye base recording layer, an intermediate layer, and a reflective layer in the described order, wherein
- said reflective layer is composed of at least one metal element and is 60 to 200 nm thick, and
- said intermediate layer contains a compound of the one metal space element or a compound of at least one of the metal elements where the reflective layer contains more than one metal element and is 3 to 30 nm thick.
Dependencies are inferred from the claim text.