Optical recording medium

Details Optical recording medium Optical recording medium

2007-03-14

2011-11-29

Higgins, Gerard (Department: 1785)

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

C430S270160, C430S270210, CG9BS007151, CG9BS007156

Reexamination Certificate

active

08067080

ABSTRACT:
Provided is an optical recording medium including, in sequence:a first substrate; a first information recording layer; an intermediate layer; a second information recording layer; and a second substrate having wobble convex portions on its surface,wherein information is recorded on or reproduced from the first information recording layer and second information recording layer by irradiation with a laser beam from a first information recording layer side,wherein the second information recording layer includes, over the second substrate, a light reflective layer, a dye recording layer, and an inorganic protective layer,wherein the inorganic protective layer has a thickness of 3 nm to 40 nm, and wherein the dye recording layer includes a cyanine compound expressed by General Formula (I) and a squarylium compound expressed by General Formula (II):

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