Patent ID: 7767284
Filing Date: 2010-08-03
Classification: B32B,G11B,Y10T

Abstract:
1. An optical recording medium comprising: a substrate; a first information layer and a second information layer disposed on the substrate; and an intermediate layer disposed between the first information layer and the second information layer, wherein the first information layer and the second information layer are irradiated with a laser beam from the first information layer side to perform any one of recording and reproducing respectively in the first information layer and the second information layer, and wherein the second information layer comprises a protective layer, a second dye layer which comprises an organic dye, an oxidized layer, a reflective layer, and a heat resistant layer in this order from the laser beam irradiation side, and the oxidized layer comprises an oxide which is a material constituting the reflective layer, and wherein the heat resistant layer comprises one material selected from W, Mo, Ti, V, an oxide thereof, a carbide thereof, and a nitride thereof.