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    Optical information medium
    1.
    发明授权
    Optical information medium 有权
    光信息媒体

    公开(公告)号：US06680899B2

    公开(公告)日：2004-01-20

    申请号：US09891268

    申请日：2001-06-27

    申请人： Tsuyoshi Komaki ,  Hideki Hirata ,  Naoki Hayashida ,  Toshifumi Tanaka

    发明人： Tsuyoshi Komaki ,  Hideki Hirata ,  Naoki Hayashida ,  Toshifumi Tanaka

    IPC分类号： G11B724

    CPC分类号： G11B7/2575 ,  G11B7/24056 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2545 ,  G11B7/256 ,  G11B7/2585

    摘要： An optical information medium comprising a supporting substrate, an information recording area on the supporting substrate, and a light-transmitting layer covering at least the information recording area, wherein the information recording area is irradiated with the recording/reading laser beam through the light-transmitting layer, and wherein the light-transmitting layer is highly scratch resistant upon contact with the optical pickup is provided. Also provided is an optical information medium which has a scratch-resistant light transmitting layer, and which experiences reduced vibration in high-speed rotation without suffering from problems in focus servo and tracking servo. In such optical information medium, the surface of the medium on the side of the laser beam incidence at least in the part above the information recording area has a dynamic coefficient of friction of up to 0.4.

    摘要翻译： 一种光信息介质，包括支撑基板，支撑基板上的信息记录区域和至少覆盖信息记录区域的透光层，其中通过记录/读取激光束照射信息记录区域， 并且其中所述透光层在与所述光学拾取器接触时具有高耐刮擦性。 还提供了具有耐擦伤光透射层的光学信息介质，并且在聚焦伺服和跟踪伺服中没有遇到问题的同时，在高速旋转中经历减少的振动。 在这种光学信息介质中，至少在信息记录区域上方的部分中激光束侧面的介质表面具有高达0.4的动态摩擦系数。

    Optical information medium
    2.
    发明授权
    Optical information medium 有权
    光信息媒体

    公开(公告)号：US06600717B2

    公开(公告)日：2003-07-29

    申请号：US09951742

    申请日：2001-09-14

    申请人： Naoki Hayashida ,  Hideki Hirata ,  Tsuyoshi Komaki

    发明人： Naoki Hayashida ,  Hideki Hirata ,  Tsuyoshi Komaki

    IPC分类号： G11B724

    CPC分类号： G11B7/252 ,  G11B7/24 ,  G11B7/253 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2548 ,  G11B7/256 ,  G11B7/259 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25708 ,  G11B2007/25713 ,  G11B2007/25715

    摘要： An optical information medium is provided which has a light-transmitting substrate which exhibits excellent light transmittance when a laser beam of blue/violet region or ultraviolet region is used as the recording and/or reading beam; whose light transmittance is not substantially affected by the variation or fluctuation of the oscillation wavelength of the laser beam source; which has a long-term weatherability; and which exhibits sufficient protective effects against exterior impacts. The optical information medium includes an information recording layer and a light-transmitting substrate, and the medium is used such that the recording and/or reading laser beam reaches the information-recording layer through the light-transmitting substrate. The light-transmitting substrate has a light transmittance T and difference &Dgr;T between the maximum value and the minimum value of the light transmittance T in arbitrary wavelength range of 10 nm which satisfies the relations: T≧0.8 and &Dgr;T≦0.10 at least in the wavelength region of 250 to 450 nm.

    摘要翻译： 提供了一种光学信息介质，其具有当使用蓝色/紫色区域或紫外线区域的激光束作为记录和/或读取光束时表现出优异的透光性的透光衬底; 其透光率基本上不受激光束源的振荡波长的变化或波动的影响; 具有长期耐候性; 并且对外部影响具有足够的保护作用。 光信息介质包括信息记录层和透光衬底，并且使用介质使得记录和/或读取激光束通过透光衬底到达信息记录层。 透光性基板具有在10nm的任意波长范围内的光透射率T和透光率T的最大值与最小值之间的差值DELTAT，其满足以下关系：T> = 0.8和DELTAT <= 0.10，至少在 波长区域为250〜450nm。

    Optical information medium and its testing method
    4.
    发明授权
    Optical information medium and its testing method 有权
    光信息媒体及其测试方法

    公开(公告)号：US06775838B2

    公开(公告)日：2004-08-10

    申请号：US09945811

    申请日：2001-09-05

    申请人： Tsuyoshi Komaki ,  Naoki Hayashida ,  Hideki Hirata

    发明人： Tsuyoshi Komaki ,  Naoki Hayashida ,  Hideki Hirata

    IPC分类号： G11B370

    CPC分类号： G11B7/244 ,  G11B7/24056 ,  G11B7/253 ,  G11B7/254 ,  G11B7/257

    摘要： An optical information medium is provided. The medium comprises a supporting substrate, an information recording layer thereon, and a light-transmitting layer thereon and a recording or reading laser beam enters the recording layer through the light-transmitting layer, and in such medium, recording/reading characteristics are improved when the beam spot of a laser beam has a small diameter and the linear velocity is high with the function of the light-transmitting layer to protect the information recording layer maintained at a sufficient level. Also provided is a medium wherein storage stability is improved. In the optical information medium comprising a supporting substrate, an information recording layer thereon, and a light-transmitting layer on the information recording layer wherein a recording or reading laser beam enters the information recording layer through the light-transmitting layer, the light-transmitting includes at least one resin layer, and has a tensile yield stress of 20 to 100 MPa and tensile strain at yield of 0.1 to 15%.

    摘要翻译： 提供光信息介质。 介质包括支撑基板，其上的信息记录层及其上的透光层，并且记录或读取激光束通过透光层进入记录层，并且在这种介质中，记录/读取特性得到改善，当 激光束的光斑具有小直径，并且线速度高，具有透光层的功能，以保护信息记录层保持在足够的水平。 还提供了一种改善了储存稳定性的介质。 在其上记录或读取激光束通过透光层进入信息记录层的信息记录层上的包括支撑基板，信息记录层和透光层的光学信息介质中，透光层 包含至少一层树脂层，拉伸屈服应力为20〜100MPa，拉伸应变为0.1〜15％。

    Optical information medium
    8.
    发明授权
    Optical information medium 有权
    光信息媒体

    公开(公告)号：US06731591B2

    公开(公告)日：2004-05-04

    申请号：US09917902

    申请日：2001-07-31

    申请人： Naoki Hayashida ,  Tsuyoshi Komaki

    发明人： Naoki Hayashida ,  Tsuyoshi Komaki

    IPC分类号： G11B724

    CPC分类号： G11B7/252 ,  G11B7/2403 ,  G11B7/24038 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2595 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

    摘要： A multi-layer information medium which is less likely to be deflected and twisted is provided. Such medium is also provided at low cost. The optical information medium comprises a substrate or a pair of substrates, and at least two information-storing layers for storing recorded information and/or tracking servo information disposed on said substrate or between said pair of substrates, and at least one information-storing layer is recorded or read by the recording beam or the reading beam which has passed through other information-storing layer(s). In this medium, the medium has at least one cured intermediate layer comprising an active energy radiation-curable resin, and at least one of said cured intermediate layer(s) has a tensile elongation at break of 15 to 200% and a tensile modulus of 20 to 1,000 MPa.

    摘要翻译： 提供了不太可能被偏转和扭曲的多层信息介质。 这种介质也以低成本提供。 光学信息介质包括基板或一对基板，以及至少两个用于存储设置在所述基板上或所述一对基板之间的记录信息和/或跟踪伺服信息的信息存储层，以及至少一个信息存储层 由通过其他信息存储层的记录光束或读取光束记录或读取。 在该介质中，介质具有至少一个包含活性能量辐射固化树脂的固化中间层，至少一个所述固化中间层的拉伸断裂伸长率为15-200％，拉伸模量为 20〜1000MPa。

    Optical information medium
    9.
    发明授权
    Optical information medium 有权
    光信息媒体

    公开(公告)号：US06866884B2

    公开(公告)日：2005-03-15

    申请号：US10443033

    申请日：2003-05-22

    申请人： Naoki Hayashida ,  Hideki Hirata

    发明人： Naoki Hayashida ,  Hideki Hirata

    IPC分类号： G11B7/24 ,  G11B7/254 ,  G11B7/257 ,  G11B11/105 ,  B05D5/06

    CPC分类号： G11B7/2548 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2545 ,  G11B7/2575 ,  G11B7/2578 ,  G11B2007/25417 ,  Y10T428/21

    摘要： An optical information medium which has excellent abrasion resistance and which further exhibits sufficient smudge-proof properties is provided. The optical information medium is coated on at least one surface with a film of a silane coupling agent containing a water- or oil-repellent substituent, said silane coupling agent being represented by the following formula (1): R1—Si(X)(Y)(Z) wherein R1 is the water- or oil-repellent substituent; X, Y and Z are independently a monovalent group; and at least one of X, Y and Z is a group which is capable of forming Si—O—Si bond by polycondensation with silanol group; and said medium has an underlying layer formed in contact with said silane coupling agent film, and at least the surface of said underlying layer comprises a compound having a chemical bond represented by the formula (2): M—A wherein M is a metal atom (including a semimetal), and A is a chalcogen atom selected from O, S, Se, and Te, nitrogen atom, or carbon atom.

    摘要翻译： 提供了具有优异的耐磨性并进一步显示足够防污性的光学信息介质。 所述光学信息介质在至少一个表面上涂覆含有拒水拒油取代基的硅烷偶联剂的膜，所述硅烷偶联剂由下式（1）表示：R1-Si（X）（ Y）（Z）其中R1是斥水斥油剂取代基; X，Y和Z独立地为一价基团; X，Y和Z中的至少一个是能够通过与硅烷醇基缩聚而形成Si-O-Si键的基团。 并且所述介质具有与所述硅烷偶联剂膜接触形成的下层，并且至少所述下层的表面包含具有由式（2）表示的化学键的化合物：MA其中M是金属原子（包括 半金属），A是选自O，S，Se和Te，氮原子或碳原子的硫属原子。

    Optical information medium
    10.
    发明授权
    Optical information medium 有权
    光信息媒体

    公开(公告)号：US06596363B2

    公开(公告)日：2003-07-22

    申请号：US09829067

    申请日：2001-04-10

    申请人： Naoki Hayashida ,  Hideki Hirata

    发明人： Naoki Hayashida ,  Hideki Hirata

    IPC分类号： B32B302

    CPC分类号： G11B7/2548 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2545 ,  G11B7/2575 ,  G11B7/2578 ,  G11B2007/25417 ,  Y10T428/21

    摘要： An optical information medium which has excellent abrasion resistance and which further exhibits sufficient smudge-proof properties is provided. The optical information medium is coated on at least one surface with a film of a silane coupling agent containing a water- or oil-repellent substituent, said silane coupling agent being represented by the following formula (1): R1—Si(X)(Y)(Z) wherein R1 is the water- or oil-repellent substituent; X, Y and Z are independently a monovalent group; and at least one of X, Y and Z is a group which is capable of forming Si—O—Si bond by polycondensation with silanol group; and said medium has an underlying layer formed in contact with said silane coupling agent film, and at least the surface of said underlying layer comprises a compound having a chemical bond represented by the formula (2): M—A wherein M is a metal atom (including a semimetal), and A is a chalcogen atom selected from O, S, Se, and Te, nitrogen atom, or carbon atom.

    摘要翻译： 提供了具有优异的耐磨性并进一步显示足够防污性的光学信息介质。 所述光学信息介质在至少一个表面上涂布含有斥水斥油剂取代基的硅烷偶联剂的膜，所述硅烷偶联剂由下式（1）表示：其中R 1是水或 拒油取代基; X，Y和Z独立地为一价基团; X，Y和Z中的至少一个是能够通过与硅烷醇基缩聚而形成Si-O-Si键的基团。 并且所述介质具有与所述硅烷偶联剂膜接触形成的下层，并且至少所述下层的表面包含具有由式（2）表示的化学键的化合物：其中M是金属原子（包括 半金属），A是选自O，S，Se和Te，氮原子或碳原子的硫属原子。