OPTICAL RECORDING MEDIUM, OPTICAL RECORDING METHOD AND OPTICAL RECORDING DEVICE
摘要
An optical recording medium having a substrate, and a recording layer provided on the substrate and containing: (a) a formazan metal chelate including a formazan compound and a metal component, (b) a squarylium metal chelate including a squarylium compound and a metal component; and (c) at least one additional dye selected from phthalocyanine compounds and pentamethine cyanine compounds. Alternatively, the recording layer contains (a) a first formazan metal chelate including a first formazan compound and a first metal component and having the maximum absorption wavelength in the range of 500 to 650 nm, (b) a squarylium metal chelate including a squarylium compound and a metal components and (c) a second formazan metal chelate including a second formazan compound and a second metal component and having the maximum absorption wavelength different from that of the first formazan metal chelate and in the range of 650 to 750 nm.
申请公布号
CA2418572(A1)
申请公布日期
2003.08.12
申请号
CA20032418572
申请日期
2003.02.10
申请人
KYOWA YUKA CO., LTD.;KYOWA HAKKO KOGYO CO. LTD.;RICOH COMPANY LTD.