Optical recording medium
AssigneeSony Corporation
InventorsYo Ota, Takashi Iwamura, Mitsuaki Oyamada, Daisuke Ueda
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Abstract
A recording layer is formed from an organic material (thermoplastic resin, thermosetting resin) having an oxygen element ratio of 9.1% or more. Examples include polyethersulfone, polyimide, and polyethylene. Alternatively, the recording layer is formed from a material in which a low-molecular compound is added to a resin and which has an oxygen element ratio after mixing of 9.1% or more.
Claims9
An optical recording medium comprising a bulk type recording layer in which hole marks are formed by laser light irradiation, wherein the recording layer contains an organic material having an oxygen element ratio of 9.1% or more.
An optical recording medium comprising a bulk type recording layer in which hole marks are formed by laser light irradiation, wherein the recording layer contains a material in which a low-molecular compound is added to a resin and which has an oxygen element ratio of 9.1% or more.
Dependencies are inferred from the claim text.