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16 条记录 (耗时 0.021 秒)

    Method for data writing/read-out using a contact start and stop system
    3.
    发明授权
    Method for data writing/read-out using a contact start and stop system 失效
    使用联系人启动和停止系统进行数据写入/读出的方法

    公开(公告)号：US6057984A

    公开(公告)日：2000-05-02

    申请号：US325176

    申请日：1999-06-03

    申请人： Yoji Arita ,  Yuzo Seo

    发明人： Yoji Arita ,  Yuzo Seo

    IPC分类号： G11B5/60 ,  G11B5/82

    CPC分类号： G11B5/60 ,  G11B5/82

    摘要： A method for conducting data writing/reading-out utilizing a contact start and stop (CSS) system is provided. The system includes a magnetic disc having a data zone for writing/reading-out of data and a contact start and stop (CSS) zone having a taking-off/landing region, and a stopping region for contact start and stop operation of a magnetic head. A plurality of projections are provided in the CSS zone such that the relative height of the projections in the taking-off/landing region decreases in the radial outward direction from the center of the magnetic disc toward the data zone. An average gradient for the height of the projections in the taking-off/landing zone is between about 1.times.10.sup.-6 and about 5.times.10.sup.-5. Further, the maximum height of the projections in the CSS zone is greater than the flying height of the magnetic head in the data zone, and the minimum height of the projections in the CSS zone is lower than the flying height of the magnetic head in the data zone. The system also includes a contact-head for seeking and for spinning down/spinning up disc rotations on the sloped projections. Recording/reading operations are accomplished by flying the magnetic head at a height lower than the maximum height of the projections.

    摘要翻译： 提供了一种使用联系人启动和停止（CSS）系统进行数据写入/读出的方法。 该系统包括具有用于写入/读出数据的数据区的磁盘和具有起飞/着陆区域的触点启动和停止（CSS）区域，以及用于磁性的接触启动和停止操作的停止区域 头。 在CSS区域设置多个突起，使得起飞/着陆区域中的突起的相对高度在从磁盘的中心朝向数据区的径向向外方向上减小。 起飞/着陆区的突起的高度的平均梯度为约1×10 -6至约5×10 -5。 此外，CSS区域中的突起的最大高度大于数据区中的磁头的飞行高度，并且CSS区域中的突起的最小高度低于在该区域中的磁头的飞行高度 数据区。 该系统还包括用于在倾斜的突起上寻找和旋转/旋转盘旋转的接触头。 记录/读取操作通过使磁头在低于突起的最大高度的高度上飞行来实现。

    Motor
    4.
    发明授权
    Motor 失效
    发动机

    公开(公告)号：US4812692A

    公开(公告)日：1989-03-14

    申请号：US149923

    申请日：1988-01-29

    申请人： Yoji Arita

    发明人： Yoji Arita

    IPC分类号： H02K29/00 ,  H02K21/00 ,  H02K21/12 ,  H02K37/12 ,  H02K37/14 ,  H02K23/40

    CPC分类号： H02K37/14 ,  H02K37/12

    摘要： A motor comprises magnetic poles constituted by a permanent magnet magnetized in its radial direction and a core having salient poles placed inside or outside the magnetic poles wherein the magnetic flux distribution of the permanent magnet is controlled so that the cogging torque characteristic of the motor is rendered to be a specified condition.

    摘要翻译： 电动机包括由其径向磁化的永久磁铁构成的磁极和设置在磁极内部或外部的凸极的磁芯，其中永磁体的磁通分布被控制，使得电动机的齿槽转矩特性变得 成为指定条件。

    Magnetron sputtering apparatus
    6.
    发明授权
    Magnetron sputtering apparatus 失效
    磁控溅射装置

    公开(公告)号：US4964968A

    公开(公告)日：1990-10-23

    申请号：US321210

    申请日：1989-03-09

    申请人： Yoji Arita

    发明人： Yoji Arita

    IPC分类号： C23C14/35 ,  H01J37/34

    CPC分类号： H01J37/347 ,  C23C14/35 ,  H01J37/3408 ,  H01J37/3452 ,  H01J37/3458

    摘要： A magnetron sputtering apparatus has a target disposed above an inner magnetic pole surrounded by an outer magnetic pole of opposite polarity and a gradient adjusting means mounted underneath the target and interposed between the inner and outer magnetic poles. The gradient adjusting means operates such that the gradient of the component of the leakage magnetic field vertical to the target is reduced over the middle portion of the target, between the inner and outer magnetic poles, and is increased at portions closer to the magnetic poles. The gradient adjusting means may be made of a soft magnetic material or a permanent magnet material, and the soft magnetic material may be used alone or in combination with the permanent magnet material. A second permanent magnet may be used in conjunction with the use of a permanent magnet as the gradient adjusting means. The magnetron sputtering apparatus prevents localized erosion of the target, thus making the area of erosion on the target more uniform, prolonging the life of the target, and providing for more even sputtered films.

    摘要翻译： 磁控管溅射装置具有设置在由相反极性的外磁极围绕的内磁极上方的靶和安装在靶下方并插入在内磁极与外磁极之间的梯度调节装置。 梯度调整装置的操作使得垂直于目标的泄漏磁场的分量的梯度在目标的中间部分之间在内部和外部磁极之间减小，并且在更靠近磁极的部分处增加。 梯度调节装置可以由软磁材料或永磁材料制成，并且软磁材料可以单独使用或与永久磁铁材料组合使用。 结合使用永磁体作为梯度调节装置，可以使用第二永久磁铁。 磁控溅射装置防止靶材的局部侵蚀，从而使目标上的侵蚀面积更均匀，延长靶材的寿命，并提供更均匀的溅射膜。

    Actuator
    7.
    发明授权
    Actuator 失效
    执行器

    公开(公告)号：US4945330A

    公开(公告)日：1990-07-31

    申请号：US329321

    申请日：1989-03-27

    申请人： Yoji Arita

    发明人： Yoji Arita

    IPC分类号： H01F7/02 ,  H01F7/08 ,  H01F7/14

    CPC分类号： H01F7/08 ,  H01F7/021 ,  H01F7/14

    摘要： An actuator is disclosed, in which an movable armature and a permanent magnet mounted on a stationary yoke are disposed to face each other with a small gap. The armature has at least one pair of protruding poles which are movable along a predetermined path. The permanent magnet comprises plural pairs of juxtaposed magnetic pieces whose polarities are opposite to each other. The plural pairs of magnetic pieces are arranged in juxtaposition with each other at positions adjacent to the path of the corresponding protruding pole so that adjacent two magnetic pieces of adjacent two pairs have the same polarity with each other. The permanent magnet generates such a magnetic pattern that the amount thereof gradually decreases from both ends of the path of each protruding pole towards the boundary of the magnet pieces of the corresponding pair to avoid the influences due to the reluctance torque and the drive torque.

    摘要翻译： 公开了一种致动器，其中安装在固定磁轭上的可移动电枢和永磁体以小间隙彼此面对设置。 电枢具有至少一对可沿预定路径移动的突出极。 永磁体包括极性彼此相反的多对并置的磁性片。 这些多个磁性片在相邻的突出极的路径相邻的位置处彼此并列布置，使得相邻的两对的相邻两个磁性片彼此具有相同的极性。 永磁体产生这样的磁性图案，其量从每个突出极的路径的两端朝向相应对的磁体片的边界逐渐减小，以避免由于磁阻转矩和驱动转矩引起的影响。

    Motor
    9.
    发明授权
    Motor 失效
    发动机

    公开(公告)号：US4994702A

    公开(公告)日：1991-02-19

    申请号：US554892

    申请日：1990-07-20

    申请人： Yoji Arita

    发明人： Yoji Arita

    IPC分类号： H02K1/27 ,  H02K29/00

    CPC分类号： H02K29/03 ,  H02K1/2786

    摘要： A motor includes a field magnet system comprised of plural permanent magnetic poles arranged in a circle and an armature with plural poles each facing the magnetic poles of the field magnetic system. The widthwise length of a magnetic flux generating area of the permanent magnetic poles varies with the rotational angle to eliminate a cogging torque caused by higher harmonic wave components of the magnetic flux.

    摘要翻译： 电动机包括由多个设置成圆形的永久磁极和具有多个极的电枢组成的场磁体系统，每个磁极均面对磁场系统的磁极。 永久磁极的磁通量产生区域的宽度方向的长度随着旋转角度而变化，以消除由磁通量的高次谐波分量引起的齿槽转矩。

    Magnetic recording medium, its production method and magnetic recording apparatus
    10.
    发明授权
    Magnetic recording medium, its production method and magnetic recording apparatus 失效
    磁记录介质，其制作方法和磁记录装置

    公开(公告)号：US06781779B2

    公开(公告)日：2004-08-24

    申请号：US09854679

    申请日：2001-05-15

    申请人： Yoji Arita ,  Hiroyuki Ikeda

    发明人： Yoji Arita ,  Hiroyuki Ikeda

    IPC分类号： G11B502

    CPC分类号： G11B5/59633 ,  G11B5/00 ,  G11B5/012 ,  G11B5/74 ,  G11B5/82 ,  G11B13/045 ,  G11B2005/0002

    摘要： A magnetic recording medium for recording information by forming a magnetic pattern for information thereon by a magnetic head, which is a longitudinal magnetic recording medium having a coercive force of at least 3000 Oe, and which has a magnetic pattern for control of the magnetic head preliminarily formed thereon, wherein the full width at half maximum of an isolated pulse of a reproducing signal of the magnetic pattern for control is smaller than the full width at half maximum of an isolated pulse of a reproducing signal of the magnetic pattern for information.

    摘要翻译： 一种磁记录介质，用于通过形成用于信息的磁图案来记录信息，所述磁头是作为具有至少3000Oe的矫顽力的纵向磁记录介质，并且具有预先控制磁头的磁图案 其中，用于控制的磁性图案的再现信号的隔离脉冲的半峰全宽小于用于信息的磁图案的再现信号的隔离脉冲的半峰全宽。