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    Optical disk
    4.
    发明授权
    Optical disk 失效
    光盘

    公开(公告)号：US07962927B2

    公开(公告)日：2011-06-14

    申请号：US12568496

    申请日：2009-09-28

    申请人： Toshiyuki Kashiwagi ,  Takeshi Yamasaki ,  Tomomi Yukumoto

    发明人： Toshiyuki Kashiwagi ,  Takeshi Yamasaki ,  Tomomi Yukumoto

    IPC分类号： G11B17/04 ,  G11B3/70

    CPC分类号： G11B7/24094 ,  G11B7/24067 ,  G11B23/40

    摘要： The present invention relates to an optical disc for use as a recording medium in an optical disc drive, which has a transparent protection film (120) formed on a recording layer on one plane of the disc substrate (110) and a printing label film 130 being of approximately the same film quality and film structure as the transparent protection film (120) formed on the other plane thereof. The printing label film (130) is a synthetic resin film made mainly of polycarbonate and formed on the disc substrate by screen printing, etc. Thus, the optical disc has the same film quality and film structure on the respective one and the other planes, which prevents occurrence of skew caused by the deformation due to the asymmetry of the structure along the thickness direction of the optical disc. The optical disc has a function to present contents of information recorded therein with the printing label film provided on the other plane of the disc substrate.

    摘要翻译： 本发明涉及一种用作光盘驱动器中的记录介质的光盘，其具有形成在盘基片（110）的一个平面上的记录层上的透明保护膜（120）和印刷标签膜130 具有与形成在其另一平面上的透明保护膜（120）大致相同的膜质量和膜结构。 印刷标签膜（130）是主要由聚碳酸酯制成的合成树脂膜，通过丝网印刷等形成在盘基板上。因此，光盘在相应的一个和另一个平面上具有相同的膜质量和膜结构， 这防止由于结构沿着光盘的厚度方向的不对称性而引起的变形引起的偏斜。 光盘具有在盘片基板的另一平面上设置印刷标签膜的功能。

    Optical recording medium and method of producing the same
    7.
    发明申请
    Optical recording medium and method of producing the same 审中-公开
    光记录介质及其制造方法

    公开(公告)号：US20080068968A1

    公开(公告)日：2008-03-20

    申请号：US11978350

    申请日：2007-10-29

    申请人： Takeshi Yamasaki ,  Tomomi Yukumoto

    发明人： Takeshi Yamasaki ,  Tomomi Yukumoto

    IPC分类号： G11B3/74

    CPC分类号： G11B7/24038 ,  G11B7/26 ,  Y10T428/21

    摘要： An optical recording medium capable of suppressing film thickness irregularity of interlayer between a plurality of optical recording layers and effects of warps of a transfer substrate and arising of dusts and burrs problems, etc. and a method of producing the optical recording medium are provided. An optical recording medium has a structure wherein at least two optical recording layers (11, 13) stacked via an interlayer 12 and a light transmitting layer 14 provided on the optical recording layer are provided at least one surface of a medium substrate 10, for performing recording and reproducing by irradiating a light to the optical recording layers (11, 13) through the light transmitting layer 14, and the interlayer includes at least one layer of ultraviolet curing resin film made to be a film in advance and is a film formed with an uneven shape corresponding to a recording pit or an uneven shape (12p) to be a guide groove on its surface and cured.

    摘要翻译： 提供能够抑制多个光学记录层之间的层间膜的膜厚不均匀性和转印基板的翘曲的影响并且由于灰尘和毛刺问题引起的光记录介质等以及制造该光学记录介质的方法。 光记录介质具有以下结构：在介质基板10的至少一个表面上设置有经由中间层12堆叠的至少两个光记录层（11,13）和设置在光记录层上的透光层14，用于执行 通过透光层14向光记录层（11,13）照射光进行记录和再现，并且中间层包括预先形成为膜的至少一层紫外线固化树脂膜和形成有膜 对应于记录坑或不平坦形状（12p）的不平坦形状作为其表面上的引导槽并固化。

    Optical Disc and Method of Manufacturing Same
    8.
    发明申请
    Optical Disc and Method of Manufacturing Same 失效
    光盘及其制造方法相同

    公开(公告)号：US20070223356A1

    公开(公告)日：2007-09-27

    申请号：US11578079

    申请日：2005-04-13

    申请人： Toshiro Kinoshita ,  Masayuki Taniguchi ,  Hiroshi Umeyama ,  Takeshi Yamasaki ,  Tomomi Yukumoto

    发明人： Toshiro Kinoshita ,  Masayuki Taniguchi ,  Hiroshi Umeyama ,  Takeshi Yamasaki ,  Tomomi Yukumoto

    IPC分类号： G11B7/24

    CPC分类号： G11B7/24094

    摘要： An optical disc (10) includes a substrate (11), which is formed from either a resin-impregnated paper produced by impregnating a paper with a resin, or a resin-coated paper produced by coating a surface of a paper with a resin, and a recording layer (13), wherein the resin contains at least one resin selected from the group consisting of polycarbonates, bisphenol A epoxy resins, copolymers of methyl methacrylate and styrene, and copolymers of acrylonitrile and styrene. Furthermore, a method of manufacturing an optical disc (20) includes: providing a recording layer sheet by forming tracks on a recording base material; and bonding the recording layer sheet to a resin-impregnated paper or a resin-coated paper, thereby providing a recording layer (13) formed from the recording layer sheet on the substrate (11).

    摘要翻译： 光盘（10）包括由通过用树脂浸渍纸制成的树脂浸渍纸或通过用树脂涂布纸表面而制成的树脂涂布纸形成的基板（11） 和记录层（13），其中所述树脂含有选自聚碳酸酯，双酚A环氧树脂，甲基丙烯酸甲酯和苯乙烯的共聚物以及丙烯腈和苯乙烯的共聚物中的至少一种树脂。 此外，制造光盘（20）的方法包括：通过在记录基材上形成轨迹来提供记录层片; 并将记录层片材粘合到树脂浸渍纸或树脂涂布纸上，由此在基片（11）上形成由记录层片材形成的记录层（13）。

    Protective film for optical disks and optical disk using the film
    9.
    发明授权
    Protective film for optical disks and optical disk using the film 失效
    使用该胶片的光盘保护膜和光盘

    公开(公告)号：US06823528B2

    公开(公告)日：2004-11-23

    申请号：US10329735

    申请日：2002-12-26

    申请人： Takeshi Yamasaki ,  Tomomi Yukumoto ,  Kazuya Katoh

    发明人： Takeshi Yamasaki ,  Tomomi Yukumoto ,  Kazuya Katoh

    IPC分类号： G11B724

    CPC分类号： G11B7/2542 ,  G11B7/24056 ,  G11B7/2534 ,  G11B7/256 ,  G11B7/259 ,  Y10T428/28 ,  Y10T428/2891

    摘要： A protective film for optical disks comprising an acrylic adhesive layer disposed on one face of a light transmitting substrate film, wherein a change in transmittance (X) expressed by equation [1] is 10% or smaller and the amount of elution of halogen ions and the amount of alkaline ions from an acrylic adhesive constituting the acrylic adhesive layer are each 10 ppm or smaller; and an optical disk using the protective film. X(%)=[(Ta−Tb)/Ta]×100  [1] (Ta: an initial transmittance of light of 405 nm through the protective film, Tb: a transmittance of light of 405 nm through the protective film after the protective film is left standing at 80° C. in 85% RH for 1,000 hours). The protective film is used for protecting the information recording layer of the optical disk and the functions of recording and regeneration of the optical disk are not adversely effected.

    摘要翻译： 一种用于光盘的保护膜，其包括设置在透光基底膜的一个面上的丙烯酸粘合剂层，其中由式[1]表示的透射率（X）的变化为10％以下，卤素离子的洗脱量 构成丙烯酸类粘合剂层的丙烯酸类粘合剂的碱性离子的量为10ppm以下， （Ta：通过保护膜的405nm的光的初始透射率，Tb：保护膜在80℃下静置后通过保护膜的405nm的光的透射率。 在85％RH下进行1000小时）。 保护膜用于保护光盘的信息记录层，并且不会不利地影响光盘的记录和再生功能。

    Disk-like multilayer information recording medium and production method thereof
    10.
    发明授权
    Disk-like multilayer information recording medium and production method thereof 失效
    盘状多层信息记录介质及其制造方法

    公开(公告)号：US06663935B1

    公开(公告)日：2003-12-16

    申请号：US09743829

    申请日：2001-05-11

    申请人： Toshiyuki Kashiwagi ,  Takeshi Yamasaki ,  Motohiro Furuki ,  Tomomi Yukumoto

    发明人： Toshiyuki Kashiwagi ,  Takeshi Yamasaki ,  Motohiro Furuki ,  Tomomi Yukumoto

    IPC分类号： G11B566

    CPC分类号： B29C59/026 ,  B29C59/04 ,  B29C2035/0827 ,  B29L2017/003 ,  G11B7/24 ,  G11B7/26 ,  Y10S428/90

    摘要： The present invention relates to a multi-layered disc-shaped information recording medium having a plurality of signal recording layers each carrying information signals. In preparing the recording medium, a first substrate obtained on punching a sheet obtained in turn by having a signal recording pattern transcribed on it from a first stamper and by forming a semi-transparent film on a signal surface is bonded to a second substrate obtained on injection molding a synthetic resin material. The second substrate is prepared by having transcribed to it a signal recording pattern formed on a second stamper provided on an injection molding device. A reflective film is formed on a signal surface having the transcribed second substrate. The first and second substrates are bonded together on their signal recording layers by a transparent adherent layer.

    摘要翻译： 本发明涉及具有多个信号记录层的多层盘形信息记录介质，每个信号记录层都携带信息信号。 在制备记录介质时，通过在第一压模上转印有信号记录图案并在信号表面上形成半透明膜而依次冲压得到的片材获得的第一衬底被接合到在 注塑成型合成树脂材料。 通过将第二基板转印到形成在设置在注射成型装置上的第二压模上的信号记录图案来制备。 在具有转录的第二基板的信号表面上形成反射膜。 第一和第二衬底通过透明粘附层在它们的信号记录层上结合在一起。