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    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：US5410534A

    公开(公告)日：1995-04-25

    申请号：US77374

    申请日：1993-06-17

    申请人： Ken'ichi Nagata ,  Eiji Ohno ,  Nobuo Akahira ,  Ken'ichi Nishiuchi ,  Noboru Yamada

    发明人： Ken'ichi Nagata ,  Eiji Ohno ,  Nobuo Akahira ,  Ken'ichi Nishiuchi ,  Noboru Yamada

    IPC分类号： G11B7/005 ,  G11B7/24 ,  G11B3/70

    CPC分类号： G11B7/24 ,  G11B7/0051

    摘要： In an optical recording medium having concave and convex type signal pits formed on a substrate surface, a reflection layer is formed on the signal pits in such a manner that a reflection index of an interior of the signal pits is higher than a reflection index at a periphery of the signal pits with respect to a given reproduction laser beam wavelength. In an optical recording medium having a phase change recording layer which reversibly changes optical states upon application of laser energy, a structural phase difference between a reflection beam of non-recorded regions and a reflection beam of recorded regions of the optical recording medium with respect to the wavelength of a reproduction laser beam is in a range of (0.5-1.5)+2 n.pi. radians, where n is an integer. The phase change recording layer has principle components of Ge-Sb-Te or Sb-Se.

    摘要翻译： 在形成在基板表面上的具有凹凸型信号凹坑的光记录介质中，在信号凹坑上形成反射层，使得信号凹坑内部的反射指数高于信号凹坑内部的反射指数 信号的周边相对于给定的再现激光束波长凹坑。 在具有在施加激光能量时可逆地改变光学状态的相变记录层的光学记录介质中，非记录区域的反射光束和光学记录介质的记录区域的反射光束之间的结构相位差相对于 再现激光束的波长在（0.5-1.5）+2n pi弧度的范围内，其中n是整数。 相变记录层具有Ge-Sb-Te或Sb-Se的主要成分。

    Optical information recording medium and manufacturing method
    6.
    发明授权
    Optical information recording medium and manufacturing method 有权
    光信息记录介质及制造方法

    公开(公告)号：US6143469A

    公开(公告)日：2000-11-07

    申请号：US282999

    申请日：1999-03-31

    申请人： Hiroyuki Ohta ,  Yoshitaka Sakaue ,  Eiji Ohno ,  Noboru Yamada

    发明人： Hiroyuki Ohta ,  Yoshitaka Sakaue ,  Eiji Ohno ,  Noboru Yamada

    IPC分类号： G11B7/0055 ,  G11B7/006 ,  G11B7/243 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/257 ,  G11B7/2578 ,  G11B7/2585 ,  G11B7/26 ,  G11B7/24

    CPC分类号： G11B7/252 ,  G11B7/2578 ,  G11B7/26 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585 ,  Y10S430/146

    摘要： A method for manufacturing an optical information recording medium having an excellent mechanical strength, thermal stability, and improved overwrite cycle property can be provided by forming the dielectric layer by using a mixed target comprising ZnS and SiO.sub.2 in an atmosphere comprising rare gas and at least oxygen at the side where the dielectric layer does not contact to the recording layer. The optical information recording medium is manufactured by using the substrate, the recording layer comprising a material that varies reversibly between the optically identifiable states by an irradiation of a laser beam, and the dielectric layer at least one side of which has a two-layered structure at the upper and lower sides of the recording layer. At least one of the dielectric layers that does not contact to the recording layer is formed by using a mixed target comprising ZnS and SiO.sub.2 in a mixed atmosphere comprising rare gas and oxygen.

    摘要翻译： 可以通过在包含稀有气体和至少氧气的气氛中使用包含ZnS和SiO 2的混合靶来形成介电层来提供具有优异的机械强度，热稳定性和改进的重写循环性能的光学信息记录介质的制造方法 在电介质层不与记录层接触的一侧。 光学信息记录介质是通过使用基板来制造的，该记录层包括通过激光束的照射在光学可识别状态之间可逆地变化的材料，以及至少一侧具有两层结构的介电层 在记录层的上侧和下侧。 通过在包含稀有气体和氧气的混合气氛中使用包含ZnS和SiO 2的混合靶，形成不与记录层接触的介电层中的至少一个。

    Method for manufacturing an optical information recording medium
    7.
    发明授权
    Method for manufacturing an optical information recording medium 失效
    光学信息记录介质的制造方法

    公开(公告)号：US5914214A

    公开(公告)日：1999-06-22

    申请号：US982650

    申请日：1997-12-02

    申请人： Hiroyuki Ohta ,  Yoshitaka Sakaue ,  Eiji Ohno ,  Noboru Yamada

    发明人： Hiroyuki Ohta ,  Yoshitaka Sakaue ,  Eiji Ohno ,  Noboru Yamada

    IPC分类号： G11B7/0055 ,  G11B7/006 ,  G11B7/243 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/257 ,  G11B7/2578 ,  G11B7/2585 ,  G11B7/26 ,  G11B7/24

    CPC分类号： G11B7/252 ,  G11B7/2578 ,  G11B7/26 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585 ,  Y10S430/146

    摘要： A method for manufacturing an optical information recording medium having an excellent mechanical strength, thermal stability, and improved overwrite cycle property can be provided by forming the dielectric layer by using a mixed target comprising ZnS and SiO.sub.2 in an atmosphere comprising rare gas and at least oxygen at the side where the dielectric layer does not contact to the recording layer. The optical information recording medium is manufactured by using the substrate, the recording layer comprising a material that varies reversibly between the optically identifiable states by an irradiation of a laser beam, and the dielectric layer at least one side of which has a two-layered structure at the upper and lower sides of the recording layer. At least one of the dielectric layers that does not contact to the recording layer is formed by using a mixed target comprising ZnS and SiO.sub.2 in a mixed atmosphere comprising rare gas and oxygen.

    摘要翻译： 可以通过在包含稀有气体和至少氧气的气氛中使用包含ZnS和SiO 2的混合靶来形成介电层来提供具有优异的机械强度，热稳定性和改进的重写循环性能的光学信息记录介质的制造方法 在电介质层不与记录层接触的一侧。 光学信息记录介质是通过使用基板来制造的，该记录层包括通过激光束的照射在光学可识别状态之间可逆地变化的材料，以及至少一侧具有两层结构的介电层 在记录层的上侧和下侧。 通过在包含稀有气体和氧气的混合气氛中使用包含ZnS和SiO 2的混合靶，形成不与记录层接触的介电层中的至少一个。