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    Magneto-optical recording medium
    1.
    发明授权
    Magneto-optical recording medium 有权
    磁光记录介质

    公开(公告)号：US6117544A

    公开(公告)日：2000-09-12

    申请号：US336094

    申请日：1999-06-18

    申请人： Junji Hirokane ,  Noboru Iwata ,  Akira Takahashi

    发明人： Junji Hirokane ,  Noboru Iwata ,  Akira Takahashi

    IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B5/66

    CPC分类号： G11B11/10593 ,  G11B11/10584 ,  G11B11/10515 ,  Y10S428/90

    摘要： A recording layer and a flux adjustment layer have different magnetic polarities so that their magnetizations are countervailed at room temperature, with the result that a weakened leakage magnetic flux is released therefrom. A reproducing layer, a reproducing assist layer and an in-plane magnetization layer exhibit in-plane magnetization at room temperature. In a first temperature area having a temperature not more than the critical temperature of the reproducing layer, the reproducing layer 1 exhibits in-plane magnetization so that magnetization of a recording magnetic domain is not copied to the reproducing layer. In contrast, a second temperature area having a temperature rise between the critical temperature and the Curie temperature of the reproducing layer, the flux adjustment layer and the in-plane magnetization layer have reached their Curie temperatures and lost their magnetization; thus, a leakage magnetic flux generated by the magnetization of the recording magnetic domain is copied to the reproducing assist layer that is in a perpendicular magnetization state, and further copied to the reproducing layer. Moreover, in a third temperature area having a temperature rise exceeding the Curie temperature of the reproducing layer, the reproducing layer has lost its magnetization.

    摘要翻译： 记录层和磁通调节层具有不同的磁极性，使得它们的磁化在室温下抵消，结果是从其中释放出弱化的漏磁通。 再现层，再现辅助层和平面内磁化层在室温下表现出平面内的磁化强度。 在温度不超过再生层的临界温度的第一温度区域中，再现层1表现出平面内的磁化，使得记录磁畴的磁化不被复制到再现层。 相反，具有临界温度和再生层的居里温度之间的温度上升的第二温度区域，通量调节层和面内磁化层已经达到居里温度并失去其磁化强度; 因此，由记录磁畴的磁化产生的泄漏磁通被复制到处于垂直磁化状态的再现辅助层，并进一步复制到再现层。 此外，在温度升高超过再现层的居里温度的第三温度区域中，再现层已经失去其磁化。

    Magneto-optical storage media
    2.
    发明授权
    Magneto-optical storage media 有权
    磁光存储介质

    公开(公告)号：US06278668B1

    公开(公告)日：2001-08-21

    申请号：US09442794

    申请日：1999-11-18

    申请人： Junji Hirokane ,  Noboru Iwata ,  Akira Takahashi

    发明人： Junji Hirokane ,  Noboru Iwata ,  Akira Takahashi

    IPC分类号： G11B1100

    CPC分类号： G11B11/10584 ,  G11B11/10515 ,  G11B11/10593

    摘要： A magneto-optical storage medium includes: a reproduction layer exhibiting an in-plane magnetization state at room temperature and changing to a perpendicular magnetization state at a transition temperature Tp1; a supplementary reproduction layer exhibiting an in-plane magnetization state at room temperature and changing to a perpendicular magnetization state at a transition temperature Tp2; a non-magnetic intermediate layer; and a storage layer made of a perpendicular magnetization film, the layers being deposited in this order, the magneto-optical storage medium being arranged so as to satisfy: Tp1

    摘要翻译： 磁光存储介质包括：在室温下呈平面内的磁化状态并在转变温度Tp1处变为垂直磁化状态的再现层;在室温下呈现面​​内磁化状态的补充再生层 到转变温度Tp2的垂直磁化状态;非磁性中间层; 和由垂直磁化膜制成的存储层，这些层按此顺序沉积，磁光存储介质被布置为满足：这种布置使得磁光存储介质能够放大存储在存储层中的磁信息 并将其复制到再现层，并且其信号的周期等于或低于从存储层再现的光的衍射极限，而不减小振幅。

    Optical storage medium, optical read/write apparatus, and optical read/write method
    4.
    发明申请
    Optical storage medium, optical read/write apparatus, and optical read/write method 有权
    光存储介质，光读/写装置和光读/写方式

    公开(公告)号：US20100262981A1

    公开(公告)日：2010-10-14

    申请号：US12798333

    申请日：2010-03-31

    申请人： Junji Hirokane ,  Noboru Iwata

    发明人： Junji Hirokane ,  Noboru Iwata

    IPC分类号： G11B17/028 ,  G11B7/26

    CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/00454 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/1267 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/263 ,  G11B20/00086 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00253 ,  G11B2007/0013

    摘要： An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is readable/writeable separately from the other layers. In this case, the optical read/write apparatus operates so that data is read/written from/into a second data storage layer after fully recording a recordable area of a first data storage layer. Thus, light can be shone with uniform intensity across the substantially entire recordable area of the second data storage layer without using a complex read/write system even under such conditions that the transmittance to light of the first data storage layer in the recordable area may vary depending on whether any data is recorded in the recordable area.

    摘要翻译： 光学读/写装置使得来自照明装置的读/写光束仅对包括堆叠的数据存储层的光存储介质的一侧进行打印，每个存储层与其它层分开地可读/写。 在这种情况下，光学读/写装置的操作使得在完全记录第一数据存储层的可记录区域之后，数据从/向第二数据存储层进行读/写。 因此，即使在可记录区域中的第一数据存储层的透光率可以变化的条件下，也可以在第二数据存储层的大致整个可记录区域上照射光，而不使用复杂的读/写系统 取决于任何数据是否记录在可记录区域。

    Magneto-optical recording device with three distinct layers
    6.
    发明授权
    Magneto-optical recording device with three distinct layers 有权
    具有三个不同层的磁光记录装置

    公开(公告)号：US06430115B1

    公开(公告)日：2002-08-06

    申请号：US09386135

    申请日：1999-08-31

    申请人： Junji Hirokane ,  Noboru Iwata

    发明人： Junji Hirokane ,  Noboru Iwata

    IPC分类号： G11B1100

    CPC分类号： G11B11/10515 ,  G11B11/10584 ,  G11B11/10586

    摘要： A reproducing layer having perpendicular magnetization in a single layer, an in-plane magnetic layer, and a recording layer having perpendicular magnetization are formed in this order. When the reproducing layer, the in-plane magnetic layer, and the recording layer have the Curie temperatures of Tc1, Tc2, and Tc3, these values satisfy conditions of Tc2

    摘要翻译： 依次形成在单层中具有垂直磁化的再现层，面内磁性层和具有垂直磁化的记录层。 当再现层，面内磁性层和记录层具有Tc1，Tc2和Tc3的居里温度时，这些值满足Tc2

    Optical storage medium, optical read/write apparatus, and optical read/write method
    9.
    发明申请
    Optical storage medium, optical read/write apparatus, and optical read/write method 有权
    光存储介质，光读/写装置和光读/写方式

    公开(公告)号：US20070133371A1

    公开(公告)日：2007-06-14

    申请号：US11701942

    申请日：2007-02-02

    申请人： Junji Hirokane ,  Noboru Iwata

    发明人： Junji Hirokane ,  Noboru Iwata

    IPC分类号： G11B7/20

    CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/00454 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/1267 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/263 ,  G11B20/00086 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00253 ,  G11B2007/0013

    摘要： An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is readable/writeable separately from the other layers. In this case, the optical read/write apparatus operates so that data is read/written from/into a second data storage layer after fully recording a recordable area of a first data storage layer. Thus, light can be shone with uniform intensity across the substantially entire recordable area of the second data storage layer without using a complex read/write system even under such conditions that the transmittance to light of the first data storage layer in the recordable area may vary depending on whether any data is recorded in the recordable area.

    摘要翻译： 光学读/写装置使得来自照明装置的读/写光束仅对包括堆叠的数据存储层的光存储介质的一侧进行打印，每个存储层与其它层分开地可读/写。 在这种情况下，光学读/写装置的操作使得在完全记录第一数据存储层的可记录区域之后，数据从/向第二数据存储层进行读/写。 因此，即使在可记录区域中的第一数据存储层的透光率可以变化的条件下，也可以在第二数据存储层的大致整个可记录区域上照射光，而不使用复杂的读/写系统 取决于任何数据是否记录在可记录区域。