利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

130 条记录 (耗时 0.026 秒)

    Magneto-optical recording medium
    2.
    发明授权
    Magneto-optical recording medium 失效
    磁光记录介质

    公开(公告)号：US5644566A

    公开(公告)日：1997-07-01

    申请号：US432683

    申请日：1995-05-02

    申请人： Junichiro Nakayama ,  Michinobu Mieda ,  Hiroyuki Katayama ,  Junji Hirokane ,  Akira Takahashi ,  Kenji Ohta

    发明人： Junichiro Nakayama ,  Michinobu Mieda ,  Hiroyuki Katayama ,  Junji Hirokane ,  Akira Takahashi ,  Kenji Ohta

    IPC分类号： G11B11/105 ,  G11B7/00

    CPC分类号： G11B11/10586 ,  G11B11/10517

    摘要： An intermediate layer is formed between a memory layer and a writing layer. The intermediate layer shows in-plane magnetization at room temperature, and perpendicular magnetization within a temperature range within which the coercive force of the memory layer is lower than that of the writing layer. The Curie point of the intermediate layer is lower than that of the memory layer. Like a conventional method, light-intensity modulation overwriting is performed by irradiating laser light whose intensity has been modulated between high level and low level while applying a recording magnetic field after performing an initialization. Even when there are variations in the raised temperature by the irradiation of laser light of high level, it is possible to perform stable overwriting with light-intensity modulation by satisfactorily restraining the exchange forces between the intermediate layer and the writing layer from causing coupling.

    摘要翻译： 在存储层和写入层之间形成中间层。 中间层在室温下显示出平面内的磁化强度，在存储层的矫顽力低于书写层的温度范围内的垂直磁化强度。 中间层的居里点低于存储层的居里点。 像传统方法一样，通过在执行初始化之后照射记录磁场的同时照射强度已经被调制在高电平和低电平之间的激光来执行光强调制重写。 即使通过高水平的激光照射而升高的温度存在变化，也可以通过令人满意地抑制中间层与书写层之间的交换作用而进行光强调制来进行稳定的重写。

    Magneto-optical recording method of overwriting without requiring an initialization magnet
    3.
    发明授权
    Magneto-optical recording method of overwriting without requiring an initialization magnet 失效
    重写磁光记录方法，不需要初始化磁铁

    公开(公告)号：US5402408A

    公开(公告)日：1995-03-28

    申请号：US964428

    申请日：1992-10-21

    申请人： Junji Hirokane ,  Hiroyuki Katayama ,  Junichiro Nakayama ,  Michinobu Mieda ,  Kenji Ohta

    发明人： Junji Hirokane ,  Hiroyuki Katayama ,  Junichiro Nakayama ,  Michinobu Mieda ,  Kenji Ohta

    IPC分类号： G11B11/105 ,  G11B11/10 ,  G11B7/24

    CPC分类号： G11B11/10584 ,  G11B11/10506 ,  G11B11/10519 ,  G11B11/10586

    摘要： A magneto-optical recording method for rewriting of information including the steps of projecting a light beam, whose intensity varies in response to information to be recorded, onto a magnetic thin film with perpendicular magnetization while an external magnetic field of a constant intensity is being applied thereto; and arranging the magnetization direction of an area irradiated with the light beam of the magnetic thin film with perpendicular magnetization in the direction of the external magnetic field when projecting the light beam of high intensity, while arranging it in the direction of demagnetizing field, opposite to the direction of the external magnetic field generated by magnetization in the vicinity of the irradiated area when projecting the light beam of low intensity, and a magneto-optical memory element provided with a base whereon the magnetic thin film with perpendicular magnetization and an in-plane magnetization film are formed. With the above arrangement, an overwriting operation can be carried out through light intensity modulation without requiring an initialization magnet.

    摘要翻译： 一种用于重写信息的磁光记录方法，包括以下步骤：将强度随着要记录的信息而变化的光束投射到具有恒定强度的外部磁场的垂直磁化的磁性薄膜上， 到; 以及当投射高强度光束时，沿着外部磁场的方向，使磁性薄膜的光束照射的区域的磁化方向排列成与退磁场相反的方向 当投射低强度光束时，在照射区域附近由磁化产生的外部磁场的方向以及设置有具有垂直磁化和平面内的磁性薄膜的基底的磁光存储元件 形成磁化膜。 通过上述配置，可以通过光强调制而不需要初始化磁体来进行重写操作。

    Method of manufacturing a master plate where its guide groove has an inclined angle
    4.
    发明授权
    Method of manufacturing a master plate where its guide groove has an inclined angle 失效
    制造其导向槽具有倾斜角的主板的方法

    公开(公告)号：US5347510A

    公开(公告)日：1994-09-13

    申请号：US4266

    申请日：1993-01-14

    申请人： Junji Hirokane ,  Hiroyuki Katayama ,  Junichiro Nakayama ,  Michinobu Mieda ,  Kenji Ohta

    发明人： Junji Hirokane ,  Hiroyuki Katayama ,  Junichiro Nakayama ,  Michinobu Mieda ,  Kenji Ohta

    IPC分类号： G01Q80/00 ,  G11B7/007 ,  G11B7/24 ,  G11B7/26

    CPC分类号： G11B7/24076 ,  G11B7/261

    摘要： A master plate for manufacturing a stamper for injecting molding of an optical memory device has a substrate having a plurality of guiding grooves on a surface thereof with a predetermined interval. The respective edge portions of the guiding grooves are inclined with respect to the surface of the substrate at an angle not more than 30.degree.. According to a manufacturing method of the master plate, the post-baking process is carried out at a baking temperature of not less than 150.degree. C. and an etching gas containing O.sub.2 gas of 4 (SCCM) to 10 (SCCM) is used. Thus, even when the copying is carried out with respect to the substrate of the optical memory device according to the injection molding process wherein the stamper, which is manufactured based on the above-mentioned master plate, is used, the mold release of the stamper can be carried out without being caught by the substrate. Thus, it is possible to keep the respective shapes of the guiding grooves of the s tamper, thereby enabling of manufacturing the substrate of the optical memory device with high repeatability.

    摘要翻译： 用于制造用于注射成型光学存储器件的压模的母板具有在其表面上以预定间隔具有多个导向槽的衬底。 引导槽的各个边缘部分相对于基板的表面以不大于30°的角度倾斜。 根据主板的制造方法，后烘烤处理在不低于150℃的烘烤温度下进行，并且使用含有4（SCCM）至10（SCCM）的O 2气体的蚀刻气体。 因此，即使在使用根据上述主板制造的压模的注射成型工艺相对于光学存储器件的基板进行复印时，压模的脱模 可以在不被基材捕获的情况下进行。 因此，可以保持篡改器的引导槽的各自的形状，从而能够以高重复性制造光学存储器件的基板。

    Magneto-optical recording medium and method of recording and reproducing using the same
    5.
    发明授权
    Magneto-optical recording medium and method of recording and reproducing using the same 失效
    磁光记录介质及使用其的记录和再现方法

    公开(公告)号：US5683803A

    公开(公告)日：1997-11-04

    申请号：US433088

    申请日：1995-05-03

    申请人： Junichiro Nakayama ,  Michinobu Mieda ,  Junji Hirokane ,  Akira Takahashi ,  Kenji Ohta

    发明人： Junichiro Nakayama ,  Michinobu Mieda ,  Junji Hirokane ,  Akira Takahashi ,  Kenji Ohta

    IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B5/66 ,  B32B5/16

    CPC分类号： G11B11/10586 ,  G11B11/10506 ,  G11B11/10515 ,  G11B11/10523 ,  Y10S428/90 ,  Y10T428/26 ,  Y10T428/265

    摘要： A magneto-optical recording medium includes a first magnetic layer and a second magnetic layer being laminated. When information is to be recorded on the first magnetic layer, first, a magnetization direction in the second magnetic layer is arranged in one direction with an application of an initialization magnetic field. Then, an intensity modulated light beam is projected while applying thereto a recording magnetic field so as to change the magnetization direction in the second magnetic layer. Thereafter, the magnetization direction in the second magnetic layer is copied to the first magnetic layer, thereby recording information. The first magnetic layer has a magnetization in an intermediate direction between a perpendicular direction and an in-plane direction at room temperature, while has a perpendicular magnetization at above a predetermined temperature. Therefore, a smaller exchange coupling force is exerted from the first magnetic layer to the second magnetic layer at room temperature, thereby enabling a rewriting information with a smaller initialization magnetic field compared with the conventional method, thereby achieving a reduction in size of the apparatus and power conservation.

    摘要翻译： 磁光记录介质包括层叠的第一磁性层和第二磁性层。 当要在第一磁性层上记录信息时，首先，通过施加初始化磁场，将第二磁性层中的磁化方向布置在一个方向上。 然后，施加强度调制光束，同时向其施加记录磁场，以改变第二磁性层中的磁化方向。 此后，将第二磁性层中的磁化方向复制到第一磁性层，从而记录信息。 第一磁性层在室温下具有在垂直方向和面内方向之间的中间方向上的磁化强度，同时具有高于预定温度的垂直磁化强度。 因此，与常规方法相比，在室温下从第一磁性层向第二磁性层施加较小的交换耦合力，从而能够实现与常规方法相比具有较小初始化磁场的重写信息，从而实现装置的尺寸减小 省电。

    Optical recording element and driving system
    6.
    发明授权
    Optical recording element and driving system 失效
    光学记录元件和驱动系统

    公开(公告)号：US5459711A

    公开(公告)日：1995-10-17

    申请号：US219253

    申请日：1994-03-29

    申请人： Kenji Ohta ,  Tetsuya Inui ,  Hiroyuki Katayama ,  Akira Takahashi ,  Junji Hirokane ,  Yukinori Nishitani ,  Michinobu Mieda ,  Kazuo Van

    发明人： Kenji Ohta ,  Tetsuya Inui ,  Hiroyuki Katayama ,  Akira Takahashi ,  Junji Hirokane ,  Yukinori Nishitani ,  Michinobu Mieda ,  Kazuo Van

    IPC分类号： G11B7/0045 ,  G11B7/013 ,  G11B7/09 ,  G11B7/125 ,  G11B7/24 ,  G11B7/24085 ,  G11B11/105 ,  G11B19/02 ,  G11B3/78

    CPC分类号： G11B7/0045 ,  G11B11/10528 ,  G11B11/10578 ,  G11B11/10595 ,  G11B19/02 ,  G11B7/0938 ,  G11B7/126 ,  G11B7/24 ,  G11B7/24085

    摘要： An optical recording element comprising a recording medium which includes an information recording area formed at every unit in a non-continuous condition, the recording medium further including sample pits disposed at intervals of a fixed distance for providing basic information about the locations of the recording units in same track. Each sample pit comprises a plurality of pits disposed next to the sequence of the recording units so that the spacing between the pits differs from the spacing between the recording units. At least one of the plurality of pits is a long-sized inclined pit which is inclined at an angle in the range of 6.degree. to 80.degree. to a recording track. A driving system for driving the optical recording element for recording information in the non-continuous recording area or erasing information stored therein with a light beam the output of which is varied as required and checking whether said recording or erasing has been correctly performed, within a very short time in which the light beam passes through the non-continuous recording area. By using the optical recording element in combination with its driving system, the processing speed for reducing, erasing and verifying these functions can be greatly improved and the irradiating position of the light beam at every recording unit can be correctly controlled.

    摘要翻译： 一种光记录元件，包括记录介质，该记录介质包括在非连续状态下在每个单元处形成的信息记录区域，所述记录介质还包括以固定距离间隔设置的样品坑，以提供关于记录单元的位置的基本信息 在同一轨道。 每个采样坑包括靠近记录单元序列设置的多个凹坑，使得凹坑之间的间隔与记录单元之间的间隔不同。 多个凹坑中的至少一个是相对于记录轨道以6°至80°的角度倾斜的长尺寸倾斜凹坑。 一种驱动系统，用于驱动用于在非连续记录区域中记录信息的光学记录元件，或者用存储在其中的光束擦除信息，该光束的输出根据需要变化，并且检查是否正确地执行了所述记录或擦除 光束通过非连续记录区域的非常短的时间。 通过与其驱动系统结合使用光学记录元件，可以大大提高用于减少，擦除和验证这些功能的处理速度，并且可以正确地控制每个记录单元处的光束的照射位置。

    Optical recording element and driving system
    10.
    发明授权
    Optical recording element and driving system 失效
    光学记录元件和驱动系统

    公开(公告)号：US5335220A

    公开(公告)日：1994-08-02

    申请号：US821361

    申请日：1992-01-16

    申请人： Kenji Ohta ,  Tetsuya Inui ,  Hiroyuki Katayama ,  Akira Takahashi ,  Junji Hirokane ,  Yukinori Nishitani ,  Michinobu Mieda ,  Kazuo Van

    发明人： Kenji Ohta ,  Tetsuya Inui ,  Hiroyuki Katayama ,  Akira Takahashi ,  Junji Hirokane ,  Yukinori Nishitani ,  Michinobu Mieda ,  Kazuo Van

    IPC分类号： G11B7/0045 ,  G11B7/013 ,  G11B7/09 ,  G11B7/125 ,  G11B7/24 ,  G11B7/24085 ,  G11B11/105 ,  G11B19/02 ,  G11B3/78

    CPC分类号： G11B7/0045 ,  G11B11/10528 ,  G11B11/10578 ,  G11B11/10595 ,  G11B19/02 ,  G11B7/0938 ,  G11B7/126 ,  G11B7/24 ,  G11B7/24085

    摘要： An optical recording element comprising a recording medium which includes an information recording area formed at every unit in a non-continuous condition, the recording medium further including sample pits disposed at intervals of a fixed distance for providing basic information about the locations of the recording units in same track. Each sample pit comprises a plurality of pits disposed next to the sequence of the recording units so that the spacing between the pits differs from the spacing between the recording units. At least one of the plurality of pits is a long-sized inclined pit which is inclined at an angle in the range of 6.degree. to 80.degree. to a recording track. A driving system for driving the optical recording element for recording information in the non-continuous recording area or erasing information stored therein with a light beam the output of which is varied as required and checking whether said recording or erasing has been correctly performed, within a very short time in which the light beam passes through the non-continuous recording area. By using the optical recording element in combination with its driving system, the processing speed for reducing, erasing and verifying these functions can be greatly improved and the irradiating position of the light beam at every recording unit can be correctly controlled.

    摘要翻译： 一种光记录元件，包括记录介质，该记录介质包括在非连续状态下在每个单元处形成的信息记录区域，所述记录介质还包括以固定距离间隔设置的样品坑，以提供关于记录单元的位置的基本信息 在同一轨道。 每个采样坑包括靠近记录单元序列设置的多个凹坑，使得凹坑之间的间隔与记录单元之间的间隔不同。 多个凹坑中的至少一个是相对于记录轨道以6°至80°的角度倾斜的长尺寸倾斜凹坑。 一种驱动系统，用于驱动用于在非连续记录区域中记录信息的光学记录元件，或者用存储在其中的光束擦除信息，该光束的输出根据需要变化，并且检查是否正确地执行了所述记录或擦除 光束通过非连续记录区域的非常短的时间。 通过与其驱动系统结合使用光学记录元件，可以大大提高用于减少，擦除和验证这些功能的处理速度，并且可以正确地控制每个记录单元处的光束的照射位置。