公开(公告)号：US20040194122A1

公开(公告)日：2004-09-30

申请号：US10777034

申请日：2004-02-13

Applicant: VICTOR COMPANY OF JAPAN, LTD.

Inventor： Osamu Akutsu ,  Masaru Hatakeyama ,  Satoru Yamashita

IPC: G11B007/24

CPC classification number: G11B7/268 ,  G11B7/00454 ,  G11B7/00456 ,  G11B7/243 ,  G11B7/259

Abstract: An optical information recording medium 10 is composed of at least a reflective layer 2, a first protective layer 3, a phase-change type optical recording layer 4 and a second protective layer 5 being sequentially laminated on a substrate 1. The optical information recording medium 10 is conducted to record information by changing a phase of the phase-change type optical recording layer 4 by irradiating light from the second protective layer 5 side. The phase-change type optical recording layer 4 further contains at least Ti, In, Ge, Sb and Te. When each content amount of the Ti, In, Ge, Sb and Te is defined as v, w, x, y and z in atomic percent respectively, each content amount of v, w, x, y and z in atomic percent satisfies following relations: 0.3nullvnull4, 0.3nullwnull3, 3.4nullxnull14.5, 2.1nully/znull4 and vnullwnullxnullynullznull100.

Abstract translation: 光信息记录介质10至少由反射层2，第一保护层3，相变型光记录层4和第二保护层5构成，顺序层叠在基板1上。光信息记录介质 通过照射来自第二保护层5侧的光来改变相变型光学记录层4的相位来进行记录信息。 相变型光学记录层4至少还含有Ti，In，Ge，Sb和Te。 当Ti，In，Ge，Sb和Te的每个含量分别以原子百分比定义为v，w，x，y和z时，原子百分数的v，w，x，y和z的每个含量满足以下 关系：0.3 <= v <= 4，0.3 <= w <= 3，3.4 <= x <= 14.5,2.1 <= y / z <= 4和v + w + x + y + z <= 100。