Patent ID: 7351516
Filing Date: 2008-04-01
Classification: G11B,Y10S

Abstract:
1. An optical information recording medium comprising: a transparent substrate; a recording layer disposed on the transparent substrate; and a reflective layer disposed on the recording layer, the optical information recording medium being capable of performing, at a linear recording velocity of 28.8 m/s to 33.6 m/s, at least one of recording, erasing and rewriting information by irradiating and scanning with focused light to thereby form and erase recording marks on the recording layer, wherein the recording layer comprises at least one of alloys and intermetallic compounds each mainly comprising Ga, Ge, Sb, Te and Mn in a compositional ratio represented by the following formula: wherein x, y, z and w each represent an atomic ratio of a positive real number less than 1 and satisfy the following conditions: