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108 条记录 (耗时 0.029 秒)

    Information recording medium and information memory apparatus
    72.
    发明授权
    Information recording medium and information memory apparatus 失效
    信息记录介质和信息存储装置

    公开(公告)号：US5958649A

    公开(公告)日：1999-09-28

    申请号：US621881

    申请日：1996-03-26

    申请人： Akemi Hirotsune ,  Motoyasu Terao ,  Yasushi Miyauchi

    发明人： Akemi Hirotsune ,  Motoyasu Terao ,  Yasushi Miyauchi

    IPC分类号： G11B7/243 ,  G11B7/00 ,  G11B7/24 ,  G11B7/258 ,  G11B7/30 ,  G11B11/00

    CPC分类号： G11B7/243 ,  G11B7/258 ,  G11B2007/24306 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B7/24 ,  G11B7/2531 ,  G11B7/2534 ,  Y10S430/146

    摘要： An information memory apparatus includes an information storage medium having a thin film formed as a recording layer or a superresolution reading mask layer on a substrate directly or via a foundation layer to record and/or reproduce information stored in the form of an atom configuration change caused by irradiation of an energy beam. The information storage medium includes reflective layers as well. The information memory apparatus further includes a laser used for at least recording. The laser has a wavelength. The light absorptance of the recording layer or mask layer of the medium in a crystalline state at the wavelength is greater than or equal to the light absorptance of the recording layer or mask layer of the medium in an amorphous state at the wavelength. The information memory apparatus further includes an optical head control circuit, a tracking error detector, an optical head moving driver, a recording data modulator, a laser driver, a reproduced signal processor and a reproduced data sending unit.

    摘要翻译： 一种信息存储装置，包括：信息存储介质，其具有在基板上直接或经由基础层形成为记录层的薄膜或超分辨率读取掩模层，以记录和/或再现以原子配置变化形式存储的信息 通过照射能量束。 信息存储介质也包括反射层。 信息存储装置还包括用于至少记录的激光。 激光器有一个波长。 在波长处的结晶状态的介质的记录层或掩模层的光吸收率大于或等于在波长处于非晶态的介质的记录层或掩模层的光吸收率。 信息存储装置还包括光头控制电路，跟踪误差检测器，光头移动驱动器，记录数据调制器，激光驱动器，再现信号处理器和再现数据发送单元。

    Optical recording medium and information processing apparatus used therefor
    75.
    发明授权
    Optical recording medium and information processing apparatus used therefor 失效
    光记录媒体及其信息处理装置

    公开(公告)号：US5846625A

    公开(公告)日：1998-12-08

    申请号：US519977

    申请日：1995-08-28

    申请人： Motoyasu Terao ,  Tetsuya Nishida ,  Yasushi Miyauchi ,  Akemi Hirotsune

    发明人： Motoyasu Terao ,  Tetsuya Nishida ,  Yasushi Miyauchi ,  Akemi Hirotsune

    IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/006 ,  G11B7/125 ,  G11B7/24 ,  G11B7/257 ,  B32B3/00

    CPC分类号： G11B7/252 ,  G11B7/126 ,  G11B7/24 ,  G11B2007/24306 ,  G11B2007/24308 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716 ,  G11B7/00454 ,  G11B7/006 ,  G11B7/2534 ,  G11B7/2595 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21 ,  Y10T428/31678

    摘要： An optical disk apparatus using an optical disk in which a layer (a reflectivity adjustment layer) in which the optical constants are changed by melting at the time of irradiation of light is provided separately from a recording layer using a phase change, and the reflectivity at a portion having a high reflectivity on the recording track is 40% or lower at the time of irradiation of strong light, and the reflectivity at the same portion is 60% or higher at the time of irradiation of weak light, wherein when the laser power is set to a power which is higher than the power at which the optical constants of the reflectivity adjustment layer are greatly changed at the time of rewriting and at which a high melting-point component is not melted, remaining of an unerased portion during rewriting due to a difference in reflectivity between the written mark portion and the other portions can be prevented and the possible number of rewritings can be increased, and hence an optical disk which has a high recording sensitivity, can be read by a CD player or others, and can be rewritten by overwriting and an optical disk apparatus using it can be obtained.

    摘要翻译： 使用光盘的光盘装置，其中通过使用相变而与记录层分开设置光照射时光学常数被熔化而变化的层（反射率调节层）的光盘，并且反射率在 在强光照射时，在记录轨道上具有高反射率的部分为40％以下，在弱光照射时同一部分的反射率为60％以上，其中，当激光功率 被设定为高于在重写时反射率调节层的光学常数大大改变并且高熔点成分不熔化的功率的功率，在重写期间剩余未消耗部分 可以防止写入标记部分和其他部分之间的反射率差异，并且可以增加可能的重写次数，并且因此可以提供ha 具有高记录灵敏度，可以由CD播放机等读取，并且可以通过重写来重写，并且可以获得使用它的光盘装置。

    Perpendicular magnetic recording media having low medium noise and systems using the same
    77.
    发明授权
    Perpendicular magnetic recording media having low medium noise and systems using the same 有权
    具有低介质噪声的垂直磁记录介质和使用其的系统

    公开(公告)号：US08592060B2

    公开(公告)日：2013-11-26

    申请号：US12975197

    申请日：2010-12-21

    申请人： Ichiro Tamai ,  Yotsuo Yahisa ,  Akemi Hirotsune ,  Kiwamu Tanahashi

    发明人： Ichiro Tamai ,  Yotsuo Yahisa ,  Akemi Hirotsune ,  Kiwamu Tanahashi

    IPC分类号： G11B5/66

    CPC分类号： G11B5/65 ,  G11B5/667 ,  G11B5/732 ,  G11B5/7325

    摘要： In one embodiment, a perpendicular magnetic recording medium includes a substrate, a soft-magnetic underlayer above the substrate, a seed layer above the soft-magnetic underlayer, a first intermediate layer above the seed layer, a second intermediate layer above the first intermediate layer, a recording layer above the second intermediate layer, and a protective layer above the recording layer. The second intermediate layer includes an Ru alloy having an element selected from a group consisting of: Ti in a range from about 20 at. % to about 50 at. %, Nb in a range from about 20 at. % to about 50 at. %, Al in a range from about 20 at. % to about 40 at. %, Ta in a range from about 30 at. % to about 50 at. %, and Si in a range about 20 at. % to about 40 at. %. Other magnetic media and systems using this media are described according to more embodiments.

    摘要翻译： 在一个实施例中，垂直磁记录介质包括基底，在基底上方的软磁性底层，软磁性底层上方的晶种层，种子层上方的第一中间层，第一中间层上方的第二中间层 ，第二中间层上方的记录层和记录层上方的保护层。 第二中间层包括具有选自以下的元素的Ru合金：Ti为约20at。 ％至约50。 ％，Nb在约20英寸的范围内。 ％至约50。 ％，Al在约20英寸的范围内。 ％至约40 at。 ％，Ta在约30 at范围内。 ％至约50。 ％，Si在约20at。 ％至约40 at。 ％。 根据更多实施例描述使用该介质的其它磁性介质和系统。

    PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE APPARATUS USING THE SAME
    78.
    发明申请
    PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE APPARATUS USING THE SAME 有权
    全磁性记录介质及其使用的磁存储装置

    公开(公告)号：US20120087034A1

    公开(公告)日：2012-04-12

    申请号：US12903135

    申请日：2010-10-12

    申请人： Akemi Hirotsune ,  Yotsuo Yahisa ,  Ichiro Tamai

    发明人： Akemi Hirotsune ,  Yotsuo Yahisa ,  Ichiro Tamai

    IPC分类号： G11B5/82 ,  G11B21/02

    CPC分类号： G11B5/82 ,  G11B5/732 ,  G11B5/7325

    摘要： According to one embodiment, a perpendicular magnetic recording medium includes a soft magnetic underlayer formed above a substrate, a lower seed layer formed above the soft magnetic underlayer, at least one upper seed layer formed above the lower seed layer, an interlayer formed above the at least one upper seed layer, a perpendicular recording layer formed above the interlayer, and a protective layer formed above the perpendicular recording layer, wherein the at least one upper seed layer comprises Ni or a Ni based alloy including N, and wherein the lower seed layer includes Ni and at least one element selected from a group consisting of: W and Cr. Other embodiments are described herein regarding perpendicular magnetic recording systems and methods of producing perpendicular magnetic media.

    摘要翻译： 根据一个实施例，垂直磁记录介质包括形成在基底上方的软磁性底层，形成在软磁性底层上方的下部种子层，形成在下部种子层上方的至少一个上部种子层， 至少一个上部种子层，形成在中间层上方的垂直记录层和形成在垂直记录层上方的保护层，其中至少一个上部种子层包含Ni或包含N的Ni基合金，并且其中下部种子层 包括Ni和选自由W和Cr组成的组中的至少一种元素。 本文描述了关于垂直磁记录系统和产生垂直磁性介质的方法的其它实施例。