Invention Grant
- Patent Title: Phase-change recording material used for information recording medium and information recording medium employing it
- Patent Title (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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Application No.: US11183750Application Date: 2005-07-19
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Publication No.: US07659049B2Publication Date: 2010-02-09
- Inventor: Michikazu Horie , Takashi Ohno
- Applicant: Michikazu Horie , Takashi Ohno
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Kagaku Media Co., Ltd.
- Current Assignee: Mitsubishi Kagaku Media Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2002-059005 20020305; JP2002-202744 20020711; JP2002-322708 20021106
- Main IPC: G11B7/24
- IPC: G11B7/24

Abstract:
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
Public/Granted literature
Information query
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