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    • 81. 发明授权
    • Magneto-optical recording medium having a plurality of magnetic layers
    • 具有多个磁性层的磁光记录介质
    • US5838645A
    • 1998-11-17
    • US866594
    • 1997-05-30
    • Junji HirokaneMichinobu MiedaJunichiro NakayamaAkira Takahashi
    • Junji HirokaneMichinobu MiedaJunichiro NakayamaAkira Takahashi
    • G11B11/10G11B11/105G11B11/00
    • G11B11/10515G11B11/10586
    • A magneto-optical disk provided with a record layer having a recording magnetic domain where data are recorded, an auxiliary reproduction layer for transferring the record data in the record layer to a reproduction layer by generating a floating magnetic field corresponding to the data in the record layer, and the reproduction layer from which the data are read out through irradiation of a light beam, which are sequentially layered while interposing nonmagnetic intermediate layers therebetween. The stable magnetic domain width in the auxiliary reproduction layer is shorter than the recording magnetic domain width at room temperature and extends as the temperature rises and becomes longer at or above a first temperature. The stable magnetic domain width in the reproduction layer is longer than the recording magnetic domain width at room temperature and lessens as the temperature rises and becomes shorter at or above a second temperature which is lower than the first temperature. The first and second temperatures satisfy a condition expressed as: room temperature
    • 具有记录数据的记录磁畴的磁光盘,用于通过产生与记录中的数据相对应的浮动磁场将记录层中的记录数据传送到再现层的辅助再现层 层,以及通过照射光束从中读出数据的再现层,它们在其间插入非磁性中间层的顺序层叠。 辅助再生层中的稳定的磁畴宽度比室温下的记录磁畴宽度短,随着温度升高而延长,在第一温度以上也变长。 再生层中的稳定的磁畴宽度比室温下的记录磁畴宽度长,随着温度的升高而降低,在比第一温度低的第二温度以上也变短。 第一和第二温度满足条件表示为:室温<第二温度<第一温度APPROXLESS光束点中的最大温度。 因此,在再现层中立即产生并擦除反向磁畴,并且所得到的再现信号是矩形信号,从而可以提供能够精确地再现高密度记录数据的磁光记录介质。
    • 82. 发明授权
    • Magneto-optical recording medium having a plurality of magnetic layers
    • 具有多个磁性层的磁光记录介质
    • US5684764A
    • 1997-11-04
    • US595259
    • 1996-02-01
    • Junji HirokaneMichinobu MiedaJunichiro NakayamaAkira Takahashi
    • Junji HirokaneMichinobu MiedaJunichiro NakayamaAkira Takahashi
    • G11B11/10G11B11/105G11B11/00
    • G11B11/10515G11B11/10586
    • A magneto-optical disk provided with a record layer having a recording magnetic domain where data are recorded, an auxiliary reproduction layer for transferring the record data in the record layer to a reproduction layer by generating a floating magnetic field corresponding to the data in the record layer, and the reproduction layer from which the data are read out through irradiation of a light beam, which are sequentially layered while interposing non-magnetic intermediate layers therebetween. The stable magnetic domain width in the auxiliary reproduction layer is shorter than the recording magnetic domain width at room temperature and extends as the temperature rises and becomes longer at or above a first temperature. The stable magnetic domain width in the reproduction layer is longer than the recording magnetic domain width at room temperature and lessens as the temperature rises and becomes shorter at or above a second temperature which is lower than the first temperature. The first and second temperatures satisfy a condition expressed as: room temperature
    • 具有记录数据的记录磁畴的磁光盘,用于通过产生与记录中的数据相对应的浮动磁场将记录层中的记录数据传送到再现层的辅助再现层 层,以及通过照射光束从中读出数据的再现层,它们在介于其间的非磁性中间层的顺序层叠。 辅助再生层中的稳定的磁畴宽度比室温下的记录磁畴宽度短,随着温度升高而延长,在第一温度以上也变长。 再生层中的稳定的磁畴宽度比室温下的记录磁畴宽度长,随着温度的升高而降低,在比第一温度低的第二温度以上也变短。 第一和第二温度满足表示为:室温<第二温度<第一温度
    • 83. 发明授权
    • Magneto-optical recording medium and method of reproducing from same
    • 磁光记录介质及其再现方法
    • US5659537A
    • 1997-08-19
    • US459338
    • 1995-06-02
    • Junji HirokaneJunichiro NakayamaMichinobu MiedaAkira Takahashi
    • Junji HirokaneJunichiro NakayamaMichinobu MiedaAkira Takahashi
    • G11B11/10G11B11/105G11B7/00
    • G11B11/10593G11B11/10515G11B11/10584
    • A recording layer including a recording magnetic domain for recording thereon information is formed. A reproducing layer for reproducing information by projecting thereto a light beam is formed on the recording layer. A non-magnetic intermediate layer for intercepting a magnetic exchange coupling force exerted between the recording layer and the reproducing layer is formed between the recording layer and the reproducing layer. The reproducing layer is arranged such that the width of the stable magnetic domain on the reproducing layer at room temperature is larger than the width of the recording magnetic domain in the recording layer. At a reproducing temperature by the light beam, the width of the stable magnetic domain becomes smaller than the width of the recording magnetic domain, and the information is copied by the leakage magnetic flux of the recording magnetic domain. Depending on whether or not the information transferred to the reproducing layer is reproduced, the effects from other magnetic domain adjacent to the magnetic domain to be reproduced from the reproducing layer can be prevented, thereby enabling a high density recording of information on the recording layer.
    • 形成包括用于在其上记录信息的记录磁畴的记录层。 在记录层上形成用于通过向其投射光来再现信息的再现层。 在记录层和再现层之间形成用于截取在记录层和再现层之间施加的磁交换耦合力的非磁性中间层。 再现层被布置成使得在室温下再现层上的稳定磁畴的宽度大于记录层中记录磁畴的宽度。 在光束的再现温度下,稳定磁畴的宽度变得小于记录磁畴的宽度,并且通过记录磁畴的泄漏磁通来复制信息。 根据传送到再现层的信息是否被再现,可以防止从再现层再现的与磁畴相邻的其它磁畴的影响,从而能够在记录层上高密度地记录信息。
    • 89. 发明申请
    • Method of laser beam maching and laser beam machining apparatus
    • 激光束加工方法和激光束加工装置
    • US20060166469A1
    • 2006-07-27
    • US10526855
    • 2003-09-03
    • Junichiro NakayamaShinya Okazaki
    • Junichiro NakayamaShinya Okazaki
    • H01L21/20
    • H01L21/02675H01L21/02678H01L21/2026
    • An object of the invention is to credibly crystallize an amorphous material for use as a semiconductor material and effect crystallization to a region of desired scope. A first region drawn on a surface of a layer of amorphous material formed on the surface layer of sample (21) is irradiated with laser beam to thereby effect melting, solidification and crystallization of the amorphous material. A second region drawn on the surface of the layer of amorphous material so as to partially overlap the first region is determined, and the second region is irradiated with laser beam to thereby melt the amorphous material within the second region. At the time of solidification of the molten amorphous material, epitaxial growth with the use of the crystal of the first region as a seed crystal is carried out to thereby attain crystallization. Shifting of the first and second regions to be irradiated with laser beam on the surface of the layer of amorphous material and irradiation with laser beam are repeated until the region of crystallization of the amorphous material reaches a desired scope.
    • 本发明的目的是可靠地结晶用作半导体材料的无定形材料并且将结晶化到所需范围的区域。 用激光束照射在样品(21)的表面层上形成的无定形材料层的表面上绘制的第一区域,从而进行无定形材料的熔融,固化和结晶。 确定在非晶材料层的表面上绘制以与第一区域部分重叠的第二区域,并且用激光束照射第二区域,从而熔化第二区域内的非晶材料。 在熔融无定形材料固化时,进行利用第一区域的晶体作为晶种的外延生长,从而进行结晶化。 重复将激光束照射在第一和第二区域的非晶材料层的表面上并用激光束照射,直到无定形材料的结晶区域达到期望的范围。