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    Cast molding die and process for producing information recording medium using the same
    1.
    发明授权
    Cast molding die and process for producing information recording medium using the same 失效
    铸造模具及使用该模具的信息记录介质的制造方法

    公开(公告)号：US5234633A

    公开(公告)日：1993-08-10

    申请号：US811900

    申请日：1991-12-20

    申请人： Hiroyuki Imataki ,  Tetsuya Satoh ,  Mizuho Hiraoka ,  Tomoyuki Tamura

    发明人： Hiroyuki Imataki ,  Tetsuya Satoh ,  Mizuho Hiraoka ,  Tomoyuki Tamura

    IPC分类号： B29C33/42 ,  B29C39/26 ,  G11B7/26

    CPC分类号： B29C33/424 ,  B29C39/26 ,  G11B7/263 ,  Y10S425/81

    摘要： There is provided a cast molding die for an information recording medium, having a mold surface with a prescribed unevenness pattern including a projection; wherein the projection has at least one pair of opposite side slopes each of which forms an acute angle with respect to the extension of the mold surface. By using the cast molding die having the above-mentioned projection with a three-dimensional shape, a defect such as lack in the resultant information recording medium is prevented.

    摘要翻译： 提供了一种用于信息记录介质的铸造模具，具有包括突起的具有规定的凹凸图案的模具表面; 其中所述突起具有至少一对相对的侧边，每个斜面相对于所述模具表面的延伸部形成锐角。 通过使用具有上述具有三维形状的突起的铸塑模具，可以防止所得到的信息记录介质中缺少缺陷。

    Method of producing a molding die for an information recording medium
    4.
    发明授权
    Method of producing a molding die for an information recording medium 失效
    一种用于信息记录介质的模头的制造方法

    公开(公告)号：US5389313A

    公开(公告)日：1995-02-14

    申请号：US994358

    申请日：1992-12-21

    申请人： Hiroyuki Imataki ,  Tetsuya Satoh ,  Mizuho Hiraoka ,  Tomoyuki Tamura

    发明人： Hiroyuki Imataki ,  Tetsuya Satoh ,  Mizuho Hiraoka ,  Tomoyuki Tamura

    IPC分类号： B29C33/42 ,  B29C39/26 ,  G11B7/26 ,  B44C1/22 ,  B29D17/00

    CPC分类号： B29C33/424 ,  B29C39/26 ,  G11B7/263 ,  Y10S425/81

    摘要： A method produces a molding die for an information recording medium, having a mold surface with a prescribed unevenness pattern comprising a projection; the projection having different etching velocities along its projected thickness; and defining a pair of convergent opposite inclining side slopes. Each slope of the pair forms an acute inclining angle with respect to extension of the mold surface. A pattern-forming layer is formed comprising a common metal element throughout its thickness and an additional element differing in composition from the common metal element in the thickness direction of the pattern-forming layer. The common metal element and the additional elements have different etching velocities in the thickness direction of the pattern-forming layer. The pattern-forming layer is selectively etched with a common etchant to form the projection.

    摘要翻译： 一种方法产生用于信息记录介质的模具，其具有包括突起的规定凹凸图案的模具表面; 该突起沿其突出厚度具有不同的蚀刻速度; 并且限定一对收敛的相对倾斜侧斜面。 该对的每个斜面相对于模具表面的延伸形成锐角倾斜角。 在图案形成层的厚度方向上形成包括普通金属元件的图案形成层和在共同金属元件上的组成不同的附加元件。 普通金属元件和附加元件在图案形成层的厚度方向上具有不同的蚀刻速度。 用常见的蚀刻剂选择性地蚀刻图案形成层以形成投影。

    Optical recording medium and optical recording method using the same
    9.
    发明授权
    Optical recording medium and optical recording method using the same 失效
    光记录介质及使用其的光记录方法

    公开(公告)号：US4871649A

    公开(公告)日：1989-10-03

    申请号：US28129

    申请日：1987-03-19

    申请人： Hiroyuki Imataki ,  Mizuho Hiraoka ,  Sachiko Ichikawa ,  Yoshihiro Ogawa ,  Hitoshi Yoshino

    发明人： Hiroyuki Imataki ,  Mizuho Hiraoka ,  Sachiko Ichikawa ,  Yoshihiro Ogawa ,  Hitoshi Yoshino

    IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/24 ,  G11B7/243 ,  G11B7/244 ,  G11B7/258

    CPC分类号： G11B7/258 ,  G11B7/244 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/2475 ,  G11B7/249 ,  Y10S430/146 ,  Y10S430/165

    摘要： An optical recording medium wherein recording information has been recorded as pits, comprises an absorptive layer and a reflective layer placed thereon, the absorptive layer having, on the surface, concave portions thermally deformed by heat generated upon irradiation of light beams, and the reflective layer having concave pits formed by deformation as a consequence of the thermal deformation of the absorptive layer and covering said concave portions of the absorptive layer in such a state that the concave portions are not exposed.An optical recording method comprises irradiating an optical recording medium having an absorptive layer and a reflective layer placed thereon, with light beams to generate a heat, allowing the heat to cause the thermal deformation of the absortive layer to form concave portions on the surface of the absorptive layer, deforming the reflective layer as a consequence of the thermal deformation of the absorptive layer, thereby allowing the deformed reflective layer to cover the concave portions of the absorptive layer in such a state that the concave portions are not exposed and to form concave pits.

    摘要翻译： 其中记录信息已被记录为凹坑的光学记录介质包括吸收层和放置在其上的反射层，吸收层在表面上具有通过在光束照射时产生的热而热变形的凹部，反射层 具有作为吸收层的热变形的变形而形成的凹坑，并且在凹部未露出的状态下覆盖吸收层的所述凹部。 光学记录方法包括用光束照射具有吸收层和反射层的光学记录介质，产生热量，使热量引起自由基层的热变形，形成凹部 吸收层，由于吸收层的热变形而使反射层变形，从而允许变形的反射层在凹部未露出并形成凹坑的状态下覆盖吸收层的凹部 。