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    • 7. 发明授权
    • Information recording medium and method for producing the same
    • 信息记录介质及其制造方法
    • US07829169B2
    • 2010-11-09
    • US11916640
    • 2006-05-22
    • Rie KojimaNoboru Yamada
    • Rie KojimaNoboru Yamada
    • B32B3/02
    • G11B7/24038G11B7/243G11B7/2533Y10T428/21
    • An information recording medium ensuring high recording and erase function and excellent archival characteristic at a high linear velocity and over a wide range of linear velocities is provided. Such a medium is obtained by constructing a recording layer which has a composition that can generate phase change as a whole, of a first through an M-th constituent layers (wherein M is an integer of 2 or greater) which are stacked in a thickness direction, such that elemental compositions of contiguous an m-th constituent layer and a (m+1)th constituent layer are different from each other (wherein m is an integer and satisfies 1≦m≦M) assuming that the constituent layer located at an m-th position from a laser light incident side is the m-th constituent layer. In this information recording medium, at least one m-th constituent layer constituting the recording layer preferably includes at least one element selected from Te, Bi, Sb, Ge, In, Ga, Al, Sn, Pb, Se and Si.
    • 提供了一种确保高记录和擦除功能的信息记录介质,并且在高线速度和宽范围的线速度下具有出色的档案特性。 这样的介质是通过构造具有可以产生相变的组成的记录层,其第一至第M组成层(其中M为2以上的整数)以层叠的厚度 方向,使得第m个构成层和第(m + 1)个构成层的元素组成彼此不同(其中m是整数并且满足1≦̸ m≦̸ M),假定构成层位于 从激光入射侧的第m位置是第m构成层。 在该信息记录介质中,构成记录层的至少一个第m构成层优选包括选自Te,Bi,Sb,Ge,In,Ga,Al,Sn,Pb,Se和Si中的至少一种元素。