Patent ID: 7710855
Filing Date: 2010-05-04
Classification: G11B

Abstract:
1. An optical recording medium comprising: a first substrate, a first information layer, an intermediate layer, a second information layer, and a second substrate in this order, wherein the first information layer comprises a first recording layer disposed on the first substrate and the second information layer comprises a reflective layer, a second recording layer comprising an organic dye and a protective layer which are disposed on the second substrate in this order; and the second recording layer comprises an organic dye which is at least one selected from the group consisting of the squarylium metal chelate compounds represented by the following Formula (1): wherein M represents a metal atom having a coordination function; m is an integer of 0 or 1; and when m is 0, a and b may be the same as or different from each other, and represent a squarylium dye ligand represented by the following Formula (2), or when m is 1, a, b and c may be the same as or different from each other, and represent a squarylium dye ligand represented by the following Formula (2): wherein R