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    • 4. 发明申请
    • MAGNETIC RECORDING MEDIUM MANUFACTURING DEVICE
    • 磁记录介质制造设备
    • US20110186225A1
    • 2011-08-04
    • US13055329
    • 2009-07-21
    • Tsutomu NishihashiTadashi MoritaKazuhiro WatanabeKenji SatoTakuya UzumakiTsutomu Tanaka
    • Tsutomu NishihashiTadashi MoritaKazuhiro WatanabeKenji SatoTakuya UzumakiTsutomu Tanaka
    • H01L21/3065
    • G11B5/855
    • A magnetic recording medium is manufactured without the disappearance of the surface of a substrate that comprises a magnetic recording layer by ion milling and without being influenced by the atmosphere. A magnetic recording medium manufacturing device manufactures a magnetic recording medium by implanting an ion beam into a substrate that comprises a magnetic recording layer and removing by ashing the surface of the substrate that comprises the magnetic recording layer after the ion beam is implanted. The magnetic recording medium manufacturing device comprising an ion implantation chamber for implanting the ion beam into the substrate that comprises the magnetic recording layer coated with a resist film or a metal mask, and an ashing chamber for removing, by ashing, with plasma, the resist film or the metal mask of the substrate that comprises the magnetic recording layer coated with the resist film or the metal mask. The ion implantation chamber and the ashing chamber are coupled in a vacuum state. The magnetic recording medium manufactured device is provided with a substrate carrier for carrying the substrate into which the ion beam is implanted from the ion implantation chamber to the ashing chamber.
    • 通过离子研磨而不受大气的影响,制造磁记录介质,而不会消失包括磁记录层的基板的表面。 磁记录介质制造装置通过将离子束注入到包含磁记录层的基板中,并且在离子束被植入之后通过灰化包括磁记录层的基板的表面去除而制造磁记录介质。 该磁记录介质制造装置包括用于将离子束注入基片的离子注入室,所述离子注入室包括涂覆有抗蚀剂膜或金属掩模的磁记录层,以及灰化室,用灰浆除去等离子体, 膜或包含涂覆有抗蚀剂膜或金属掩模的磁记录层的基板的金属掩模。 离子注入室和灰化室在真空状态下耦合。 磁记录介质制造装置设置有用于承载离子束从离子注入室注入至灰化室的基板的基板载体。
    • 10. 发明授权
    • Apparatus and method for measuring remanence curve of a magnetic material
    • 用于测量磁性材料的剩磁曲线的装置和方法
    • US06407545B1
    • 2002-06-18
    • US09442261
    • 1999-11-17
    • Kenji SatoTakuya UzumakiTadashi Mizoguchi
    • Kenji SatoTakuya UzumakiTadashi Mizoguchi
    • G01R3312
    • G01R33/14
    • An apparatus and a method for measuring the remanence curve of a magnetic material with high accuracy is disclosed. First and second pulse magnetic field coils generate a rapidly-changing pulse magnetic field in the space where a magnetic material is located. First and second air-core coils generate a space of a zero magnetic field as well as a finite magnetic field gradient around the magnetic material after application of a pulse magnetic field. A detector detects the force generated by the cooperation between the magnetic field gradient and the magnetic moment of the magnetic material. An arithmetic unit 33 determines the residual magnetization characteristic of the magnetic material based on the detection result in the detector.
    • 公开了一种用于高精度地测量磁性材料的剩磁曲线的装置和方法。 第一和第二脉冲磁场线圈在磁性材料所在的空间中产生快速变化的脉冲磁场。 第一和第二空心线圈在施加脉冲磁场之后产生零磁场的空间以及磁性材料周围的有限磁场梯度。 检测器检测由磁场梯度和磁性材料的磁矩之间的协调产生的力。 算术单元33基于检测器中的检测结果来确定磁性材料的剩余磁化特性。