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254 条记录 (耗时 0.042 秒)

    Photo-mask for use in manufacturing an optical memory disc, a method for making the photo-mask and a method for manufacturing the optical memory disc
    81.
    发明授权
    Photo-mask for use in manufacturing an optical memory disc, a method for making the photo-mask and a method for manufacturing the optical memory disc 失效
    用于制造光存储盘的照相掩模，用于制造光掩模的方法和用于制造光存储盘的方法

    公开(公告)号：US4839251A

    公开(公告)日：1989-06-13

    申请号：US36426

    申请日：1987-04-09

    申请人： Kenji Ohta ,  Akira Takahashi ,  Tetsuya Inui ,  Junji Hirokane ,  Hiroyuki Katayama

    发明人： Kenji Ohta ,  Akira Takahashi ,  Tetsuya Inui ,  Junji Hirokane ,  Hiroyuki Katayama

    IPC分类号： G11B7/26

    CPC分类号： G11B7/261

    摘要： A photo-mask for use in manufacturing an optical memory disc has a substrate having a disc shape and made of a transparent material, and a film deposited on the substrate and formed with a predetermined pattern of grooves extending spirally or concentrically to the center of the disc shaped substrate such as to leave a thin film at the bottom of the grooves, and a number of microscopic pits in the form of minute indentations with a predetermined spacing aligned along the grooves so as to substantially leave no film at the bottom of the indentations. Thus, a light which has passed through the thin film at grooves is weakened and a light which has passed through the indentations loses substantially no power, and a light applied elsewhere on the film is cut off. The photo-mask is made through the steps of depositing an opaque film on a substrate having a disc shape and made of a transparent material, impinging a first laser at places where the grooves are to be formed, and impinging a second laser at places where the pits are to be formed. The first laser is weaker in power than the second laser.

    摘要翻译： 用于制造光学存储盘的光掩模具有盘形状并由透明材料制成的基板，以及沉积在基板上并形成有螺旋状或同心地延伸到其中心的预定图案的凹槽的薄膜 盘形基板，例如在凹槽的底部留下薄膜，并且具有沿着凹槽对准的预定间隔的微小凹痕形式的多个微凹坑，以便在凹痕的底部基本上不留下薄膜 。 因此，通过凹槽处的薄膜的光被削弱，并且已经穿过凹痕的光基本上不会损失功率，并且切断在膜上其他地方施加的光。 光掩模是通过以下步骤制成的：通过在具有圆盘形状并由透明材料制成的衬底上沉积不透明膜，将第一激光照射到要形成凹槽的位置，并将第二激光照射在 坑将形成。 第一个激光器的功率比第二个激光器弱。

    Dual surface optical memory disc
    83.
    发明授权
    Dual surface optical memory disc 失效
    双面光学记忆盘

    公开(公告)号：US4740947A

    公开(公告)日：1988-04-26

    申请号：US61034

    申请日：1987-06-12

    申请人： Kenji Ohta ,  Akira Takahashi ,  Hiroyuki Katayama ,  Junji Hirogane ,  Yoshiteru Murakami

    发明人： Kenji Ohta ,  Akira Takahashi ,  Hiroyuki Katayama ,  Junji Hirogane ,  Yoshiteru Murakami

    IPC分类号： B29C65/48 ,  G11B7/24 ,  G11B11/105

    CPC分类号： G11B11/10586 ,  B29C65/1406 ,  B29C65/4845 ,  B29C65/4875 ,  B29C66/452 ,  B29C66/73366 ,  G11B7/24015 ,  G11B7/24024 ,  B29C65/4885 ,  B29C65/7826 ,  B29C66/8322 ,  B29L2017/005

    摘要： A first optical memory disc and a second optical memory disc are fixed to each other by an adhesive layer so as to form a dual-surface optical memory disc. In a manufacturing step, an adhesive, preferably pre-cured photo-polymer mixed with spherical spacer elements, is painted on either one of or both of the first and second optical memory discs. When a predetermined pressure is applied between the two optical memory discs, the thickness of the adhesive layer is fixed by the diameter of the spherical spacer elements. While the pressure is applied between the two optical memory discs, ultraviolet rays are applied to the adhesive layer through one of the first or second optical memory discs so as to cure the photo-polymer, thereby tightly joining the first and second optical memory discs to each other.

    摘要翻译： 第一光存储盘和第二光存储盘通过粘合剂层彼此固定，以形成双表面光存储盘。 在制造步骤中，将粘合剂，优选与球形间隔元件混合的预固化光聚合物涂覆在第一和第二光学存储盘的一个或两个上。 当在两个光学存储盘之间施加预定的压力时，粘合剂层的厚度由球形间隔元件的直径固定。 当在两个光学存储盘之间施加压力时，通过第一或第二光学存储盘中的一个将紫外线施加到粘合剂层，以便固化光聚合物，从而将第一和第二光学存储盘紧密连接到 彼此。

    Magneto-optical recording medium
    85.
    发明授权
    Magneto-optical recording medium 失效
    磁光记录介质

    公开(公告)号：US5863649A

    公开(公告)日：1999-01-26

    申请号：US928894

    申请日：1997-09-12

    申请人： Junji Hirokane ,  Hiroyuki Katayama ,  Akira Takahashi ,  Kenji Ohta

    发明人： Junji Hirokane ,  Hiroyuki Katayama ,  Akira Takahashi ,  Kenji Ohta

    IPC分类号： G11B11/10 ,  C09D5/23 ,  G11B11/105 ,  G11B5/66 ,  B32B15/01 ,  G11B11/00

    CPC分类号： G11B11/10504 ,  G11B11/10515 ,  G11B11/10586 ,  G11B11/10595 ,  G11B11/10589 ,  Y10T428/26

    摘要： In a magneto-optical recording medium including a reading-out layer, which is in an in-plane magnetization state at a room temperature and in a perpendicular magnetization state when the temperature rises, and a recording layer, which is in a perpendicular magnetization state at a room temperature to a Curie point, an intermediate layer having in-plane magnetization component and a lower Curie point than the recording medium is formed between the reading-out layer and the recording layer so as to abruptly change magnetization state of the reading-out layer. Since magnetization state of the reading-out layer is abruptly changed, recording is carried out highdensely. Moreover, since exchange-coupling between the reading-out layer and the recording layer is controlled, a recording characteristic is improved.

    摘要翻译： 在包括读出层的磁光记录介质中，当温度升高时，其在室温下处于平面内的磁化状态，并且在垂直磁化状态下处于垂直磁化状态的记录层 在室温至居里点时，在读出层和记录层之间形成具有面内磁化分量和比记录介质低的居里点的中间层，从而突然改变读出层的磁化状态， 外层。 由于读出层的磁化状态突然变化，所以高度地进行记录。 此外，由于读出层和记录层之间的交换耦合被控制，所以提高了记录特性。