发明授权
- 专利标题： Information recording member
- 专利标题（中）： 信息记录成员
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申请号： US642260申请日： 1984-08-20
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公开(公告)号： US4637976A公开(公告)日： 1987-01-20
- 发明人: Motoyasu Terao , Yasushi Miyauchi , Kazuo Shigematsu , Shinkichi Horigome
- 申请人： Motoyasu Terao , Yasushi Miyauchi , Kazuo Shigematsu , Shinkichi Horigome
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX58-150148 19830819
- 主分类号： B41M5/26
- IPC分类号： B41M5/26 ; G11B7/0055 ; G11B7/243 ; G03C1/72 ; G03C1/76
摘要：
In a data recording member having a data recording film which is formed on a substrate either directly or via at least one of inorganic and organic protective layers and which causes the change of atomic arrangement upon being irradiated by recording beam, the improvement wherein said data recording film has an average composition in a direction of the film thickness expressed by the following formulas:M.sub.x Te.sub.y Se.sub.z O.sub..alpha.wherein x, y, z and .alpha. are values within the ranges of 2.ltoreq.x.ltoreq.40, 30.ltoreq.y.ltoreq.95, 3.ltoreq.z.ltoreq.45, 0.ltoreq..alpha..ltoreq.20, and M is at least one element selected from the group consisting of As, Sb, Bi, S, Si, Ge, Sn, Pb, Al, Ga, In, Tl, Zn, Cd, Au, Ag, Cu, Ni, Pd, Rh, Cr, Mo, W and Ta.
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