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    Method for manufacturing disc and method for manufacturing stamper
    1.
    发明授权
    Method for manufacturing disc and method for manufacturing stamper 失效
    制造压模的方法和制造压模的方法

    公开(公告)号：US08168094B2

    公开(公告)日：2012-05-01

    申请号：US12542237

    申请日：2009-08-17

    申请人： Shin Masuhara

    发明人： Shin Masuhara

    IPC分类号： B29D11/00

    CPC分类号： G11B7/261 ,  G11B7/263 ,  Y10S425/81

    摘要： A method for manufacturing a disc includes the steps of performing laser exposure of an inorganic resist master on which a photosensitive layer is formed using an inorganic material, which protrudes in an exposed region, and a surface coat layer is formed on the surface of the photosensitive layer in order to control the shape of protrusion, transferring the shape of protrusion formed by the laser exposure on the inorganic resist master to produce a stamper on which a portion corresponding to the shape of protrusion is a depression, forming a resin substrate using the stamper so that a portion corresponding to the shape of protrusion is a protrusion, and forming a predetermined layer structure on the resin substrate to produce an optical disc.

    摘要翻译： 制造盘的方法包括以下步骤：使用在曝光区域中突出的无机材料对其上形成有感光层的无机抗蚀剂母体进行激光曝光，并且在感光体的表面上形成表面涂层 层，以控制突起的形状，将通过激光曝光形成的突起的形状转移到无机抗蚀剂母版上，以产生其上与突起的形状相对应的部分为凹陷的压模，使用压模形成树脂基板 使得对应于突起形状的部分是突起，并且在树脂基板上形成预定的层结构以产生光盘。

    OPTICAL DISC MANUFACTURING METHOD, DISC MASTER MANUFACTURING METHOD, AND OPTICAL DISC
    2.
    发明申请
    OPTICAL DISC MANUFACTURING METHOD, DISC MASTER MANUFACTURING METHOD, AND OPTICAL DISC 审中-公开
    光盘制造方法，光盘制造方法和光盘

    公开(公告)号：US20090262640A1

    公开(公告)日：2009-10-22

    申请号：US12396775

    申请日：2009-03-03

    申请人： Kensaku TAKAHASHI ,  Jun NAKANO ,  Shin MASUHARA ,  Tetsuhiro SAKAMOTO ,  Shigeki TAKAGAWA

    发明人： Kensaku TAKAHASHI ,  Jun NAKANO ,  Shin MASUHARA ,  Tetsuhiro SAKAMOTO ,  Shigeki TAKAGAWA

    IPC分类号： G11B7/24 ,  B29C59/16

    CPC分类号： G11B7/26

    摘要： An optical-disc manufacturing method including the steps of: fabricating a pre-exposure disc master by forming, on a substrate, a heat accumulation layer having a thickness of 17% or less of a recording-laser wavelength and forming an inorganic resist layer; performing exposure of a recording-signal pattern having pits and spaces with respect to the inorganic resist layer of the disc master, by performing recording-laser light irradiation; fabricating a disc master having a pit-array shape having pits and spaces, by performing development processing after the exposure; manufacturing a stamper to which the pit-array shape is transferred, by using the disc master having the pit-array shape; and manufacturing an optical disc having a predetermined layer structure including a recording layer to which the pit-array shape of the stamper is transferred and in which a silver or silver-alloy reflective film is formed on the pit-array shape.

    摘要翻译： 一种光盘制造方法，包括以下步骤：通过在基板上形成具有记录激光波长的17％或更小的厚度的热积层并形成无机抗蚀剂层来制造预曝光盘主机; 通过执行记录激光照射，对相对于盘主机的无机抗蚀剂层的凹坑和间隔进行曝光; 通过在曝光之后进行显影处理来制造具有坑和空间的凹坑阵列形状的光盘主体; 通过使用具有凹坑阵列形状的盘主机来制造凹坑阵列形状被传送的压模; 并且制造具有预定层结构的光盘，所述预定层结构包括转印有凹坑阵列形状的记录层，并且在凹坑阵列形状上形成银或银合金反射膜。

    High density optical disc having recorded characters visibly readable from a substrate side
    3.
    发明授权
    High density optical disc having recorded characters visibly readable from a substrate side 有权
    具有从衬底侧可读出的记录字符的高密度光盘

    公开(公告)号：US07564772B2

    公开(公告)日：2009-07-21

    申请号：US10480125

    申请日：2003-04-03

    申请人： Shin Masuhara ,  Jun Nakano

    发明人： Shin Masuhara ,  Jun Nakano

    IPC分类号： G11B7/24

    CPC分类号： G11B23/40 ,  G11B7/24094 ,  G11B7/261

    摘要： An optical recording medium wherein characters can be easily recognized on an optical disk irradiated with a light through a light transmitting layer and a method of producing the same are provided. In an optical disk of a type that an optical recording layer is irradiated with a light through a light transmitting protective layer, dealing with a larger capacity, wherein one main surface of a medium substrate 15 is divided to a signal portion SG and a character portion CA, a signal portion uneven shape (15p) is formed on the signal portion SG and a character portion uneven shape (15p) is formed on the character portion CA, and depths of the signal portion uneven shape and the character portion uneven shape are 25 nm or less. Here, it is configured that characters are recorded to be able to be read as normal characters when looking from the medium substrate 15 side (Y-direction) by outlines of a region formed with the character portion uneven shape on the character portion CA.

    摘要翻译： 提供了通过透光层照射光的光盘上容易识别字符的光记录介质及其制造方法。 在通过透光保护层照射光记录层的类型的光盘中，处理较大的容量，其中介质基板15的一个主表面被划分成信号部分SG和字符部分 CA，在信号部分SG上形成信号部分不均匀形状（15p），并且在字符部分CA上形成字符部分不均匀形状（15p），信号部分不均匀形状和字符部分不均匀形状的深度为25 nm以下。 这里，通过在字符部分CA上形成有字符部分不均匀形状的区域的轮廓，从介质基板15侧（Y方向）观察时，构成为能够作为普通字符读取字符。

    Disk substrate and optical disk
    5.
    发明申请
    Disk substrate and optical disk 审中-公开
    磁盘基板和光盘

    公开(公告)号：US20060120264A1

    公开(公告)日：2006-06-08

    申请号：US10534536

    申请日：2003-10-20

    申请人： Yoshihito Fukushima ,  Jun Nakano ,  Shin Masuhara ,  Akio Koshita

    发明人： Yoshihito Fukushima ,  Jun Nakano ,  Shin Masuhara ,  Akio Koshita

    IPC分类号： G11B7/24

    CPC分类号： G11B7/00736 ,  G11B7/0945 ,  G11B7/0953

    摘要： A data area to record and/or reproduce data and an eccentricity measuring area 14 in which a groove area formed with spiral grooves and a planer mirror area are spatially alternately arranged are provided for a disc substrate. A width of groove area formed in the eccentricity measuring area, a width of mirror area, and an interval between the grooves in the groove area are selected so that a conventional mechanical characteristics measuring apparatus can track a plurality of grooves formed in the groove area as if the grooves were a single groove.

    摘要翻译： 记录和/或再现数据的数据区域以及在空间上交替布置有形成有螺旋槽和平面镜面积的槽区域的偏心测量区域14设置用于盘基片。 选择在偏心测量区域中形成的沟槽区域的宽度，镜面积的宽度以及槽区域中的槽之间的间隔，使得常规的机械特性测量装置可以跟踪形成在槽区域中的多个槽 如果槽是单个槽。

    Optical recording medium, and method of manufacturing same
    7.
    发明授权
    Optical recording medium, and method of manufacturing same 失效
    光记录介质及其制造方法

    公开(公告)号：US06440333B2

    公开(公告)日：2002-08-27

    申请号：US09841986

    申请日：2001-04-25

    申请人： Shin Masuhara

    发明人： Shin Masuhara

    IPC分类号： B29D1100

    CPC分类号： G11B11/10582 ,  G11B7/24 ,  G11B7/24085 ,  G11B7/261 ,  G11B7/263

    摘要： There are provided an optical recording medium and a method of manufacturing the optical recording medium. The optical recording medium has a pattern of microscopic depressions and projections molded thereon with a high fidelity of replication. The method of manufacturing the optical recording medium comprises the steps of forming a photoresist layer on a substrate; exposing a predetermined area of the photoresist layer formed on the substrate to form a plurality of trains of depressions in the photoresist layer; removing the photoresist layer between the adjoining depression trains to form a master; plating the master with a metal; separating the metal coating to form a master stamper; replicating the master stamper repeatedly an odd number of times to form a mother stamper; replicating the mother stamper to form a resin substrate; and forming at least a light-transparent layer on a surface of the resin substrate on which the mother stamper is replicated. The method can mold a pattern of microscopic depressions and projections with a high accuracy.

    摘要翻译： 提供了一种光学记录介质和一种制造该光学记录介质的方法。 光学记录介质具有模制在其上的高度保真复制的微小凹陷和凸起的图案。 光记录介质的制造方法包括在基板上形成光致抗蚀剂层的工序; 将形成在基板上的光致抗蚀剂层的预定区域暴露在光致抗蚀剂层中形成多个凹陷列; 在相邻的凹陷列之间移除光致抗蚀剂层以形成主体; 用金属电镀主体; 分离金属涂层以形成主压模; 重复复制主印模奇数次以形成母模; 复制母模以形成树脂基板; 以及在其上复制母模的树脂基板的表面上形成至少一个透光层。 该方法可以高精度模拟微观凹凸图案。

    Optical disc and optical disc device
    8.
    发明授权
    Optical disc and optical disc device 失效
    光盘和光盘设备

    公开(公告)号：US06243352B1

    公开(公告)日：2001-06-05

    申请号：US09086987

    申请日：1998-05-29

    申请人： Masayoshi Kanno ,  Masataka Shinoda ,  Masahiko Kaneko ,  Masato Hattori ,  Shin Masuhara

    发明人： Masayoshi Kanno ,  Masataka Shinoda ,  Masahiko Kaneko ,  Masato Hattori ,  Shin Masuhara

    IPC分类号： G11B700

    CPC分类号： G11B7/24082 ,  G11B7/0037 ,  G11B7/24079 ,  G11B7/24085 ,  G11B11/1053 ,  G11B11/10582 ,  G11B13/04 ,  G11B27/19 ,  G11B27/3027

    摘要： A novel optical disc which, while having interchangeability with a conventional MD or MD data, has a capacity far exceeding the capacity of these optical discs, and an optical disc device. The optical disc and the optical disc device take into account the constraints of the skew accompanying the increased recording density. By setting the jitter produced when recording random pattern signals on one track only to not more than 8.4% and by setting jitter increase on recording signals also on both side neighboring tracks to not more than 4.9%, the skew margin in the radial direction of not less than ±0.7° and that in the running direction (circumferential direction) of not less than ±0.6° are assured.

    摘要翻译： 与传统的MD或MD数据具有可互换性的新型光盘具有远远超过这些光盘容量的能力和光盘装置。 光盘和光盘装置考虑到伴随增加的记录密度的偏斜的约束。 通过将在一个轨道上记录随机模式信号所产生的抖动设置为不超过8.4％，并且通过将两侧相邻轨道上的记录信号的抖动增加设置为不大于4.9％，则径向方向上的歪斜余量 小于±0.7°，运行方向（圆周方向）不小于±0.6°。

    Stamper for optical disc, method for manufacturing optical disc, and optical disc
    9.
    发明授权
    Stamper for optical disc, method for manufacturing optical disc, and optical disc 有权
    用于光盘的压模，用于制造光盘的方法和光盘

    公开(公告)号：US07968017B2

    公开(公告)日：2011-06-28

    申请号：US11080607

    申请日：2005-03-15

    申请人： Jun Nakano ,  Yuji Akiyama ,  Shin Masuhara

    发明人： Jun Nakano ,  Yuji Akiyama ,  Shin Masuhara

    IPC分类号： B29D17/00 ,  B29D11/00

    CPC分类号： G11B7/24 ,  G11B7/0938 ,  G11B7/261

    摘要： This invention relates to a stamper for optical disc and a method for manufacturing an optical disc by using this stamper. A photoresist is applied to a substrate (2) and this photoresist is exposed, developed and then transferred to form a disc master which has a recess/protrusion pattern formed on its one side. The one side of the disc master (20) is etched to narrow the width of a protruding part constituting the recess/protrusion pattern, and the recess/protrusion pattern of the disc master (20) with the reduced width of the protruding part is transferred to form a stamper (30). The recess/protrusion pattern provided on the stamper (30) is transferred to form a predetermined pattern on a substrate of an optical disc.

    摘要翻译： 本发明涉及一种用于光盘的压模和使用该压模制造光盘的方法。 将光致抗蚀剂施加到基板（2）上，并将该光致抗蚀剂曝光，显影，然后转印以形成在其一侧上形成有凹凸图案的光盘母盘。 光盘主机（20）的一侧被蚀刻以使构成凹凸图案的突出部分的宽度变窄，并且传送具有减小的突出部分宽度的盘主机（20）的凹凸图案 以形成压模（30）。 设置在压模（30）上的凹凸图案被转印以在光盘的基板上形成预定图案。