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    Optical recording medium
    1.
    发明授权
    Optical recording medium 失效
    光记录介质

    公开(公告)号：US06551680B2

    公开(公告)日：2003-04-22

    申请号：US09822556

    申请日：2001-03-30

    申请人： Toru Abiko ,  Fuminori Takase ,  Hitoshi Shimomuki

    发明人： Toru Abiko ,  Fuminori Takase ,  Hitoshi Shimomuki

    IPC分类号： B32B302

    CPC分类号： G11B7/243 ,  G11B7/007 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/253 ,  G11B7/257 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/259 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10T428/21

    摘要： In order to ensure CAV recording/reproduction while preventing jitter deterioration and modulation decrease and thereby ensuring sufficient recording properties, even at a linear velocity higher than 4.8 m/s, a first dielectric film, phase change versatile recording film, second dielectric film, reflection film and protective film are formed on a disc substrate having formed lands and grooves on one major surface. The recording film is made of a GeInSbTe alloy, and the reflection film is made of an AgPdCu alloy or AlCu alloy. Composition of the GeInSbTe alloy is adjusted to contain Ge in the range of 1 to 6 wt %, In in the range of 2 to 6 wt %, and control Sb/Te in the range of 2.2 to 3.0. Composition of the AgPdCu alloy is adjusted to contain Cu not more than 1.5 wt %. Regarding groove conditions, groove depth is controlled in the range of 40 to 50 nm, groove width in the range of 0.40 to 0.65 &mgr;m, thickness of the first dielectric film in the range of 75 to 95 nm, thickness of the recording film in the range of 12 to 18 nm, thickness of the second dielectric film in the range of 20 to 28 nm, and thickness of the reflection film in the range of 60 to 140 nm.

    摘要翻译： 为了确保CAV记录/再现，同时防止抖动劣化和调制降低，从而确保足够的记录性能，即使在高于4.8m / s的线速度下，也可以使用第一介电膜，相变通用记录膜，第二介电膜，反射 膜和保护膜形成在一个主表面上具有形成的焊盘和凹槽的盘基板上。 记录膜由GeInSbTe合金制成，反射膜由AgPdCu合金或AlCu合金制成。 调整GeInSbTe合金的组成，使Ge含量为1〜6重量％，In为2〜6重量％，Sb / Te为2.2〜3.0。 将AgPdCu合金的组成调整为含有不超过1.5重量％的Cu。 关于槽条件，将槽深度控制在40〜50nm的范围内，槽宽度在0.40〜0.65μm的范围内，第一电介质膜的厚度在75〜95nm的范围内，记录膜的厚度 范围为12〜18nm，第二电介质膜的厚度为20〜28nm，反射膜的厚度为60〜140nm。

    Optical recording medium
    2.
    发明授权
    Optical recording medium 失效

    公开(公告)号：US06551681B2

    公开(公告)日：2003-04-22

    申请号：US09832604

    申请日：2001-04-11

    申请人： Toru Abiko ,  Fuminori Takase ,  Hitoshi Shimomuki

    发明人： Toru Abiko ,  Fuminori Takase ,  Hitoshi Shimomuki

    IPC分类号： B32B302

    CPC分类号： G11B7/258 ,  G11B7/007 ,  G11B7/24 ,  G11B7/243 ,  G11B7/2585 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10T428/21

    摘要： In order to increase the recording capacity while preventing jitter deterioration and a decrease of the modulation factor and thereby ensuring satisfactory recording characteristics, a first dielectric film, phase recording film, second dielectric film, reflection film and protective film are sequentially formed on a disc substrate having formed lands, grooves and wobbling on one major surface. The recording film is made of a GeInSbTe alloy, and the reflection film is made of an AgPdCu alloy or AlCu alloy. Composition of the GeInSbTe alloy is adjusted to contain Ge in the range of 1 to 8 wt %, In in the range of 2 to 6 wt %, and control Sb/Te in the range of 2.2 to 3.0. Composition of the AgPdCu alloy is adjusted to contain Pd in the range of 0.9 to 1.5 wt % and Cu not more than 1.5 wt %. Composition of the AlCu alloy is adjusted to contain Cu in the not more than 1.5 wt %. Groove depth is controlled in the range of 35 to 45 nm, groove width in the range of 0.35 to 0.50 &mgr;m, thickness of the first dielectric film in the range of 75 to 95 nm, thickness of the recording film in the range of 12 to 20 nm, thickness of the second dielectric film in the range of 16 to 28 nm, and thickness of the reflection film in the range of 80 to 160 nm.

    Optical recording medium and method for manufacturing same
    3.
    发明授权
    Optical recording medium and method for manufacturing same 有权
    光记录介质及其制造方法

    公开(公告)号：US07787353B2

    公开(公告)日：2010-08-31

    申请号：US10509308

    申请日：2004-01-22

    申请人： Toru Abiko ,  Etsuro Ikeda ,  Nobuaki Furuichi ,  Fuminori Takase

    发明人： Toru Abiko ,  Etsuro Ikeda ,  Nobuaki Furuichi ,  Fuminori Takase

    IPC分类号： G11B7/24

    CPC分类号： G11B7/241 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/256 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25716

    摘要： In an optical recording medium 1 having a configuration in which on one main surface of a substrate 2, a reflective layer 3, a lower dielectrics layer 4, a recording layer 5, an upper dielectrics layer 6 and a light transmissive layer 7 are sequentially laminated, the lower dielectrics layer 4 is formed of a first lower dielectrics layer and a second lower dielectrics layer that inhibits a material that constitutes the first lower dielectrics layer and a material that constitutes the reflective layer 3 from reacting, and the upper dielectrics layer 6 is formed of a first upper dielectrics layer and a second upper dielectrics layer that inhibits a material that constitutes the first upper dielectrics layer and a material that constitutes the light transmissive layer 7 from reacting.

    摘要翻译： 在具有基板2的一个主表面上的反射层3，下部电介质层4，记录层5，上部电介质层6和透光层7依次层叠的结构的光学记录介质1中 下电介质层4由第一下电介质层和第二下电介质层形成，第一下电介质层和第二下介电层抑制构成第一下电介质层的材料和构成反射层3的材料反应，并且上电介质层6为 由第一上电介质层和阻止构成第一上电介质层的材料和构成透光层7的材料反应的第二上电介质层形成。

    WRITE-ONCE TYPE OPTICAL RECORDING MEDIUM AND FABRICATION METHOD THEREOF
    6.
    发明申请
    WRITE-ONCE TYPE OPTICAL RECORDING MEDIUM AND FABRICATION METHOD THEREOF 失效
    写入型光学记录介质及其制造方法

    公开(公告)号：US20090097387A1

    公开(公告)日：2009-04-16

    申请号：US11814056

    申请日：2006-11-16

    申请人： Yuichi Sabi ,  Etsuro Ikeda ,  Fuminori Takase

    发明人： Yuichi Sabi ,  Etsuro Ikeda ,  Fuminori Takase

    IPC分类号： G11B7/00

    CPC分类号： G11B7/243 ,  G11B7/00455 ,  G11B7/00736 ,  G11B7/24079 ,  G11B2007/24306 ,  G11B2007/24312 ,  G11B2007/2432 ,  Y10T428/21

    摘要： To accomplish write-once type optical recording mediums that have excellent recording and reproducing characteristics and producibility and that are capable of being fabricated at low cost. A write-once type optical recording medium 10 has the structure of which an inorganic recording film 6, a dielectric film 4, and a light transmission layer 5 have been successively formed on a substrate 1. The inorganic recording film 6 is composed of a metal film 2 and an oxide film 3 successively formed on the substrate 1. When light is radiated to the inorganic recording film 6, oxygen is separated from the oxide film 3 due to the light catalyst effect, resulting in increasing the oxygen concentration on the metal film 2 side and largely varying the optical constant.

    摘要翻译： 实现具有优异的记录和再现特性和可生产性并且能够以低成本制造的一次写入型光学记录介质。 一次写入型光记录介质10具有在基板1上依次形成无机记录膜6，电介质膜4和透光层5的结构。无机记录膜6由金属 膜2和依次形成在基板1上的氧化物膜3.当光照射到无机记录膜6时，由于轻的催化剂效应，氧与氧化物膜3分离，导致金属膜上的氧浓度增加 2侧，并大大改变光学常数。

    Optical Disc
    7.
    发明授权
    Optical Disc 失效
    光盘

    公开(公告)号：US06245404B1

    公开(公告)日：2001-06-12

    申请号：US09252920

    申请日：1999-02-19

    申请人： Nobuhiro Saito ,  Minoru Kikuchi ,  Yoshihiro Akimoto ,  Fuminori Takase

    发明人： Nobuhiro Saito ,  Minoru Kikuchi ,  Yoshihiro Akimoto ,  Fuminori Takase

    IPC分类号： B32B302

    CPC分类号： G11B7/243 ,  G11B7/00454 ,  G11B7/258 ,  G11B7/2585 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21 ,  Y10T428/31678

    摘要： The present invention provides an optical disc capable of effectively reducing a reproduction signal jitter value and obtaining a wider record power margin assuring a reproduction limit jitter value to obtain a preferable recording/reproduction characteristic even after a number of times of recording repeated. The optical disc includes the following films successively formed on a substrate 2: a first dielectric film 3; a phase change recording film 4 whose phase is changed between a crystalline state and an amorphous state thereby to record an information signal; a second dielectric film 5; and a light reflection film formed on the phase change recording film 4 and constituted by an Al alloy containing Cu in a range from 0.1 to 1.0 atomic %.

    摘要翻译： 本发明提供一种能够有效地降低再现信号抖动值并获得更宽的记录功率余量的光盘，从而确保再现限制抖动值，以便即使在重复的记录次数之后也获得优选的记录/再现特性。光盘 包括在基板2上依次形成的以下膜：第一电介质膜3; 相变记录膜4，其相位在结晶状态和非晶状态之间变化，从而记录信息信号; 第二电介质膜5; 以及形成在相变记录膜4上并由含有0.1至1.0原子％的Cu的Al合金构成的光反射膜。

    Write-once type optical recording medium and fabrication method thereof
    9.
    发明授权
    Write-once type optical recording medium and fabrication method thereof 失效
    一次写入型光记录介质及其制造方法

    公开(公告)号：US07924694B2

    公开(公告)日：2011-04-12

    申请号：US11814056

    申请日：2006-11-16

    申请人： Yuichi Sabi ,  Etsuro Ikeda ,  Fuminori Takase

    发明人： Yuichi Sabi ,  Etsuro Ikeda ,  Fuminori Takase

    IPC分类号： G11B7/24 ,  B32B3/02

    CPC分类号： G11B7/243 ,  G11B7/00455 ,  G11B7/00736 ,  G11B7/24079 ,  G11B2007/24306 ,  G11B2007/24312 ,  G11B2007/2432 ,  Y10T428/21

    摘要： To accomplish write-once type optical recording mediums that have excellent recording and reproducing characteristics and producibility and that are capable of being fabricated at low cost. A write-once type optical recording medium 10 has the structure of which an inorganic recording film 6, a dielectric film 4, and a light transmission layer 5 have been successively formed on a substrate 1. The inorganic recording film 6 is composed of a metal film 2 and an oxide film 3 successively formed on the substrate 1. When light is radiated to the inorganic recording film 6, oxygen is separated from the oxide film 3 due to the light catalyst effect, resulting in increasing the oxygen concentration on the metal film 2 side and largely varying the optical constant.

    摘要翻译： 实现具有优异的记录和再现特性和可生产性并且能够以低成本制造的一次写入型光学记录介质。 一次写入型光记录介质10具有在基板1上依次形成无机记录膜6，电介质膜4和透光层5的结构。无机记录膜6由金属 膜2和依次形成在基板1上的氧化物膜3.当光照射到无机记录膜6时，由于轻的催化剂效应，氧与氧化物膜3分离，导致金属膜上的氧浓度增加 2侧，并大大改变光学常数。

    Optical disc having specified track pitch, push-pull signal, and cross-track signal
    10.
    发明授权
    Optical disc having specified track pitch, push-pull signal, and cross-track signal 失效
    具有指定轨道间距，推挽信号和交叉轨道信号的光盘

    公开(公告)号：US06269070B1

    公开(公告)日：2001-07-31

    申请号：US09135793

    申请日：1998-08-18

    申请人： Minoru Kikuchi ,  Yoshihiro Akimoto ,  Fuminori Takase ,  Masaki Kagawa ,  Nobuhiro Saito

    发明人： Minoru Kikuchi ,  Yoshihiro Akimoto ,  Fuminori Takase ,  Masaki Kagawa ,  Nobuhiro Saito

    IPC分类号： G11B724

    CPC分类号： G11B7/24079 ,  G11B7/00454

    摘要： The present invention provides a rewritable optical disc which is compatible with a DVD-ROM reproduction apparatus and employs the groove recording method. The optical disc has a recording layer having a land 10 and a groove 9 onto/from which an information signal is recorded and reproduced with a light of a predetermined wavelength, wherein if it is assumed that the groove has a bottom width W1 and an opening width W2, then a groove average width X [&mgr;m] can be expressed as follows: X=(W1+W2)/2, and if the groove has a depth Y nm, then X and Y satisfy the following relationships: Y≧4736X2−4764X+1239 X≦−0.000127Y2+0.018624Y−0.075043 X>0.40.

    摘要翻译： 本发明提供一种与DVD-ROM再现装置兼容并且采用凹槽记录方法的可重写光盘。 该光盘具有一记录层，该记录层具有在预定波长的光下记录和再现信息信号的槽9和槽9，如果假定槽具有底宽W1和开口 宽度W2，则沟槽平均宽度X um可以表示如下：并且如果凹槽具有深度Y nm，则X和Y满足以下关系：