US Patent 7316836 Optical recording medium
Patent 7316836 was granted and assigned to Sony on January, 2008 by the United States Patent and Trademark Office.
All edits
An optical recording medium comprises a transmission substrate and a recording layer formed on the transmission substrate, the recording layer containing at least a dye material expressed by a general formula shown at the following chemical formula (in the chemical formula 1, R1 represents alkyl group having carbon numbers 1 to 4, R2, R3 represent alkyl group having carbon numbers 1 to 4, benzyl group or groups combined to form 3 to 6 rings, Y1 and Y2 independently represent organic groups and X represent ClO4, BF4, PF6, SbF6) and a dye material expressed by a general formula represented by the following chemical formula 2(in the chemical formula 2, R1 and R2 represent alkyl groups having carbon numbers 1 to 4, benzyl groups or groups combined to form 3 to 6 rings, Y1, Y2 independently represent organic groups and X represent ClO4, BF4, PF6, SbF6):
US Patent 07316836 Optical recording medium US Patent 7316836 Optical recording medium
US Patent 07316836 Optical recording medium
Find more entities like US Patent 7316836 Optical recording medium
