Patent ID: 7008681
Filing Date: 2006-03-07
Classification: G11B,Y10T

Abstract:
1. An optical information recording medium comprising at least one information layer, the information layer comprising: a first protective film; a first interface film; a recording film having optical characteristics that are changed reversibly by laser beam irradiation; a second interface film; a second protective film; and a reflective film, present in the indicated order from a laser beam incident side, wherein the second interface film includes carbon or a carbide of at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and Si, and the first interface film includes a mixture of an oxide of at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, and Ta and an oxide of at least one element selected from the group consisting of Cr, Mo, and W.