Optical recording medium
AssigneeTDK Corporation
InventorsKenryo Namba, Shigeru Asami, Toshiki Aoi, Kazuo Takahashi, Akihiko Kuroiwa
Life of this patent
Estimating the term…
Abstract
The invention relates to an optical recording medium for effecting writing of information by means of recording light such as laser and reproduction or reading of the recorded information by means of reproduction or reading light, and provides an optical recording medium designed to prevent any degradation of the properties by the reading light and any lowering of writing sensitivity and reading S/N ratios. The optical recording medium including a recording layer 2 on a substrate 1 is characterized in that the recording layer 2 contains a mixture of a cyanine dye with a combination of cyanine dye cation with quencher anion.
Claims44
An optical recording medium including a recording layer on a substrate, wherein said recording layer contains a mixture of a cyanine dye with a bonded compound of cyanine dye cation with quencher anion.
Dependencies are inferred from the claim text.