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    Reversible optical information-recording medium
    2.
    发明授权
    Reversible optical information-recording medium 失效
    可逆光信息记录介质

    公开(公告)号：US5278011A

    公开(公告)日：1994-01-11

    申请号：US53346

    申请日：1993-04-28

    申请人： Noboru Yamada ,  Kunio Kimura ,  Masatoshi Takao ,  Susumu Sanai

    发明人： Noboru Yamada ,  Kunio Kimura ,  Masatoshi Takao ,  Susumu Sanai

    IPC分类号： G11B7/243 ,  G11B7/253 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/257 ,  G03C1/72 ,  G11B7/24

    CPC分类号： G11B7/243 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B7/00454 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/257 ,  G11B7/266 ,  Y10S430/146

    摘要： Phase-change type, reversible optical information recording medium, being possible for recording, reproducing, erasing, and rewriting of information, by use of a laser beam. This invention consists of recording thin film of ternary elements, for example, containing Ge, Te, Sb/or Bi or quaternary elements containing the fourth element of Se with which a part of Te is replaced, which is established on such surface-flat substrates as glass or plastics. In this case, the component ratio of Te and Se is selected not to be excess for other elements, such as Ge, Sb/or Bi so as to be fixed as stable compounds of stoichiometric compositions of GeTe, Sb.sub.2 Te.sub.3 /or Bi.sub.2 Te.sub.3, or GeSe, Sb.sub.2 Se.sub.3 /Bi.sub.2 Se.sub.3 when crystallized. Strictly speaking, a concentration of each component is selected to have proper ratio of the number of atomes each other so as to represent whole composition as the sum of each component. By this treatment, it is possible to have high crystallization speed and long cyclability of recording/erasing. The effect of Se is to increase the viscosity of the system and to make easily to obtain amorphous state; and moreover, by selecting of proper amount displaced with Te, it is possible to obtain the composition of recoding film superior in both characteristics of recording (amorphization) and erasing (crystallization).

    摘要翻译： 相变型，可逆光信息记录介质，可以通过使用激光束进行信息的记录，再现，擦除和重写。 本发明包括记录三元元素的薄膜，例如包含Ge，Te，Sb /或Bi或含有Se的第四元素的四元元素，其中Te的一部分被替换，其被形成在这些表面平坦的基底上 作为玻璃或塑料。 在这种情况下，对于Ge，Sb /或Bi等其他元素，Te和Se的成分比被选择为不过量，以固定为GeTe，Sb 2 Te 3 /或Bi 2 Te 3或GeSe的化学计量组成的稳定化合物 ，Sb2Se3 / Bi2Se3结晶。 严格地说，选择每个组分的浓度以具有彼此的原子数的适当比例，以便表示作为每个组分的总和的全部组成。 通过这种处理，可以具有高结晶速度和长的记录/擦除循环性。 Se的作用是提高系统的粘度，使其易于获得无定形状态; 此外，通过选择用Te置换的适当量，可以获得在记录（非晶化）和擦除（结晶）两个特性方面优异的记录膜的组成。

    Reversible optical information-recording medium
    3.
    发明授权
    Reversible optical information-recording medium 失效
    可逆光信息记录介质

    公开(公告)号：US06268107B1

    公开(公告)日：2001-07-31

    申请号：US08053343

    申请日：1993-04-28

    申请人： Noboru Yamada ,  Kunio Kimura ,  Masatoshi Takao ,  Susumu Sanai

    发明人： Noboru Yamada ,  Kunio Kimura ,  Masatoshi Takao ,  Susumu Sanai

    IPC分类号： G11B1103

    CPC分类号： G11B7/243 ,  G11B7/00454 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/257 ,  G11B7/266 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S430/146

    摘要： Phase-change type, reversible optical information recording medium, being possible for recording, reproducing, erasing, and rewriting of information, by use of a laser beam. This invention, consists of recording thin film of ternary elements, for example, containing Ge, Te, Sb/or Bi or quaternary elements containing the fourth element of Se with which a part of Te is replaced, which is established on such surface—flat substrates as glass or plastics. In this case, the component ratio of Te and Se is selected not to be excess for other elements, such as Ge, Sb/or Bi so as to be fixed as stable compounds of stoichiometric compositions of GeTe, Sb2Te3/or Bi2Te3, or GeSe, Sb2Se3/Bi2Se3 when crystallized. Strictly speaking, a concentration of each component is selected to have proper ratio of the number of atoms each other so as to represent whole composition as the sum of each component. By this treatment, it is possible to have high crystallization speed and long cyclability of recording/erasing. The effect of Se is to increase the viscosity of the system and to make easily to obtain amorphous state; and moreover, by selecting of proper amount diplaced with Te, it is possible to obtain the composition of recoding film superior in both characteristics of recording (amorphization) and erasing (crystallization).

    摘要翻译： 相变型，可逆光信息记录介质，可以通过使用激光束进行信息的记录，再现，擦除和重写。 本发明包括记录三元元素的薄膜，例如包含Ge，Te，Sb /或Bi或含有Se的第四元素的四元元素，其中Te的一部分被替换，其形成在这样的表面平坦 基材为玻璃或塑料。 在这种情况下，对于Ge，Sb /或Bi等其他元素，Te和Se的成分比被选择为不过量，以固定为GeTe，Sb 2 Te 3 /或Bi 2 Te 3或GeSe的化学计量组成的稳定化合物 ，Sb2Se3 / Bi2Se3结晶。 严格地说，选择每个组分的浓度以使原子数彼此具有适当的比例，以表示作为各组分的总和的全部组成。 通过这种处理，可以具有高结晶速度和长的记录/擦除循环性。 Se的作用是提高系统的粘度，使其易于获得无定形状态; 此外，通过选择适当量的Te，可以获得在记录（非晶化）和擦除（结晶）两个特性方面优异的记录膜的组成。

    Reversible optival information-recording medium
    4.
    再颁专利
    Reversible optival information-recording medium 有权
    可逆的信息记录介质

    公开(公告)号：USRE42222E1

    公开(公告)日：2011-03-15

    申请号：US10389615

    申请日：2003-03-14

    申请人： Norboru Yamada ,  Kunio Kimura ,  Masatoshi Takao ,  Susumu Sanai

    发明人： Norboru Yamada ,  Kunio Kimura ,  Masatoshi Takao ,  Susumu Sanai

    IPC分类号： G11B7/24

    CPC分类号： G11B7/243 ,  G11B7/00454 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/257 ,  G11B7/266 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S430/146

    摘要： Phase-change type, reversible optical information recording medium, being possible for recording, reproducing, erasing, and rewriting of information, by use of a laser beam. This invention, consists of recording thin film of ternary elements, for example, containing Ge, Te, Sb/or Bi or quaternary elements containing the fourth element of Se with which a part of Te is replaced, which is established on such surface—flat substrates as glass or plastics. In this case, the component ratio of Te and Se is selected not to be excess for other elements, such as Ge, Sb/or Bi so as to be fixed as stable compounds of stoichiometric compositions of GeTe, Sb2Te3/or Bi2Te3, or GeSe, Sb2Se3/Bi2Se3 when crystallized. Strictly speaking, a concentration of each component is selected to have proper ratio of the number of atoms each other so as to represent whole composition as the sum of each component. By this treatment, it is possible to have high crystallization speed and long cyclability of recording/erasing. The effect of Se is to increase the viscosity of the system and to make easily to obtain amorphous state; and moreover, by selecting of proper amount diplaced with Te, it is possible to obtain the composition of recoding film superior in both characteristics of recording (amorphization) and erasing (crystallization).

    摘要翻译： 相变型，可逆光信息记录介质，可以通过使用激光束进行信息的记录，再现，擦除和重写。 本发明包括记录三元元素的薄膜，例如包含Ge，Te，Sb /或Bi或含有Se的第四元素的四元元素，其中Te的一部分被替换，其形成在这样的表面平坦 基材为玻璃或塑料。 在这种情况下，对于Ge，Sb /或Bi等其他元素，Te和Se的成分比被选择为不过量，以固定为GeTe，Sb 2 Te 3 /或Bi 2 Te 3或GeSe的化学计量组成的稳定化合物 ，Sb2Se3 / Bi2Se3结晶。 严格地说，选择每个组分的浓度以使原子数彼此具有适当的比例，以表示作为各组分的总和的全部组成。 通过这种处理，可以具有高结晶速度和长的记录/擦除循环性。 Se的作用是提高系统的粘度，使其易于获得无定形状态; 此外，通过选择适当量的Te，可以获得在记录（非晶化）和擦除（结晶）两个特性方面优异的记录膜的组成。

    Optical information recording medium
    5.
    发明授权
    Optical information recording medium 失效
    光信息记录介质

    公开(公告)号：US5385806A

    公开(公告)日：1995-01-31

    申请号：US842731

    申请日：1992-02-26

    申请人： Eiji Ohno ,  Noboru Yamada ,  Masatoshi Takao

    发明人： Eiji Ohno ,  Noboru Yamada ,  Masatoshi Takao

    IPC分类号： B41M5/26 ,  G11B7/243 ,  G03C1/705

    CPC分类号： G11B7/243 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24316 ,  G11B2007/24324 ,  Y10S430/145 ,  Y10S430/146

    摘要： This invention, related to an optical information recording medium for recording, reproducing and erasing information by causing changes in the optical constant by using light, heat or other means, is intended to propose a recording film material of a novel composition in order to realize higher transfer rate of signals. Specifically, it is an alloy composed of indium (In) and A and B (A is at least one element selected from Ag, Cu, and B is at least one element selected from S, Se, Te), and more particularly it is composed in the vicinity of the stoichiometric compound of the above three-element system.Since the recording film material of this invention is fast in the rate of crystallization, it is possible to present an optical information recording medium that can cope with the forthcoming trend of higher transfer rate of signals.

    摘要翻译： 本发明涉及一种用于通过使用光，热或其它方式引起光学常数的改变来记录，再现和擦除信息的光学信息记录介质，旨在提出一种新型组合物的记录膜材料，以便实现更高的 信号传输速率。 具体地说，它是由铟（In）和A和B组成的合金（A是选自Ag，Cu和B中的至少一种元素是选自S，Se，Te中的至少一种元素），更特别地， 在上述三元素体系的化学计量化合物附近。 由于本发明的记录膜材料的结晶速度快，所以可以呈现一种光信息记录介质，可以应付信号传输速率较快的趋势。