发明授权
- 专利标题: Phase-change recording material used for information recording medium and information recording medium employing it
- 专利标题(中): 用于信息记录介质的相变记录材料和使用它的信息记录介质
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申请号: US11183750申请日: 2005-07-19
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公开(公告)号: US07659049B2公开(公告)日: 2010-02-09
- 发明人: Michikazu Horie , Takashi Ohno
- 申请人: Michikazu Horie , Takashi Ohno
- 申请人地址: JP Tokyo
- 专利权人: Mitsubishi Kagaku Media Co., Ltd.
- 当前专利权人: Mitsubishi Kagaku Media Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2002-059005 20020305; JP2002-202744 20020711; JP2002-322708 20021106
- 主分类号: G11B7/24
- IPC分类号: G11B7/24
摘要:
A phase-change recording material used for an information recording medium utilizing a crystalline state as a non-recorded state and an amorphous state as a recorded state, which has the composition of the following formula (1) as the main component: (Sb1−xSnx)1−y−w−zGeyTewM1z formula (1) wherein each of x, y, z and w represents atomicity, x, z and w are numbers which satisfy 0.01≦x≦0.5, 0≦z≦0.3 and 0≦w≦0.1, respectively, and the element M1 is at least one element selected from the group consisting of In, Ga, Pt, Pd, Ag, rare earth elements, Se, N, O, C, Zn, Si, Al, Bi, Ta, W, Nb and V, and (I) when z=0 and w=0, y is a number which satisfies 0.1≦y≦0.3, (II) when 0≦z≦0.3 and w=0, y is a number which satisfies 0.05≦y≦0.3, and (III) when 0≦z≦0.3 and 0
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