G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 7/244 (2006.01) C09B 23/00 (2006.01)
Patent
CA 2675289
The present invention provides an optical recording material allows for obtaining excellent recording signal properties even at high-speed recording and is excellent in durability in both a single-sided single layer optical recording medium and a single-sided two-layer optical recording medium having a first recording layer and a second recording layer. The optical recording material contains a cyanine compound having a specific structure and a squarylium compound as dyes for optical recording layers.
L'invention concerne une matière d'enregistrement optique permettant d'obtenir d'excellentes propriétés de signal d'enregistrement, même pour un enregistrement à haute vitesse. Cette matière présente une excellente durabilité à la fois dans un support d'enregistrement optique monocouche et monoface et dans un support d'enregistrement optique bicouche monoface présentant une première couche d'enregistrement et une seconde couche d'enregistrement. La matière d'enregistrement optique de l'invention contient un composé de cyanine présenant une structure spécifique et un composé de squarylium servant de colorants pour les couches d'enregistrement optique.
Hayashi Masahiro
Matsumoto Ippei
Mizukami Satoshi
Nakamura Yuki
Ohmi Fumiya
Ricoh Company Ltd.
Smart & Biggar
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