Optical information recording medium

Details Optical information recording medium Optical information recording medium

G - Physics

11

B

96/156, 42/2, 96

G11B 7/24 (2006.01)

Patent

CA 1243877

ABSTRACT An optical information recording medium being capable of effecting recording and regeneration by using laser beam which comprises a transparent or opaque substrate and a thin film recording layer, formed on said substrate, said recording layer containing a cyanine coloring matter represented by the following formula: Image (wherein, R1, R2 and R3 may be the same or different, each of them stands for an alkyl group having 1 - 6 carbon atoms, X stands for halogen, and Z stands for a superhalogenic ion, a paratoluene sulfonic ion or an alkylsulfuric ion).

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