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17 条记录 (耗时 0.029 秒)

    Head slider and disk drive device
    1.
    发明授权
    Head slider and disk drive device 有权
    磁头滑块和磁盘驱动器设备

    公开(公告)号：US07808741B2

    公开(公告)日：2010-10-05

    申请号：US12313610

    申请日：2008-11-21

    申请人： Tsuyoshi Matsumoto ,  Futoshi Kitaizumi ,  Yoshio Yamamoto ,  Hidetsugu Tanaka ,  Masayuki Ishikawa

    发明人： Tsuyoshi Matsumoto ,  Futoshi Kitaizumi ,  Yoshio Yamamoto ,  Hidetsugu Tanaka ,  Masayuki Ishikawa

    IPC分类号： G11B5/60 ,  G11B21/21

    CPC分类号： G11B5/54 ,  G11B5/6005 ,  G11B5/607

    摘要： Embodiments of the present invention help to adjust the recess depth of a head element portion of a head slider. In an embodiment of the present invention, in a test step in manufacturing an HDD, the HDD examines the recess depth of a head element portion and decreases and adjusts the recess depth if the recess depth of the head element portion does not satisfy the predetermined condition. The HDD moves an actuator to a ramp of a retract position and supplies power to a heater in a head slider. If the heater power is large, the head element portion undergoes plastic deformation. The plastic deformation of the head element portion decreases the recess depth of the head element portion.

    摘要翻译： 本发明的实施例有助于调整磁头滑块的磁头元件部分的凹陷深度。 在本发明的一个实施例中，在制造HDD的测试步骤中，如果头元件部分的凹陷深度不满足预定条件，则HDD检查头元件部分的凹陷深度并减小并调节凹陷深度 。 HDD将致动器移动到缩回位置的斜坡，并向头滑块中的加热器供电。 如果加热器功率大，则头元件部分发生塑性变形。 头元件部分的塑性变形减小了头元件部分的凹陷深度。

    Head slider and disk drive device
    2.
    发明申请
    Head slider and disk drive device 有权
    磁头滑块和磁盘驱动器设备

    公开(公告)号：US20090168248A1

    公开(公告)日：2009-07-02

    申请号：US12313610

    申请日：2008-11-21

    申请人： Tsuyoshi Matsumoto ,  Futoshi Kitaizumi ,  Yoshio Yamamoto ,  Hidetsugu Tanaka ,  Masayuki Ishikawa

    发明人： Tsuyoshi Matsumoto ,  Futoshi Kitaizumi ,  Yoshio Yamamoto ,  Hidetsugu Tanaka ,  Masayuki Ishikawa

    IPC分类号： G11B5/60

    CPC分类号： G11B5/54 ,  G11B5/6005 ,  G11B5/607

    摘要： Embodiments of the present invention help to adjust the recess depth of a head element portion of a head slider. In an embodiment of the present invention, in a test step in manufacturing an HDD, the HDD examines the recess depth of a head element portion and decreases and adjusts the recess depth if the recess depth of the head element portion does not satisfy the predetermined condition. The HDD moves an actuator to a ramp of a retract position and supplies power to a heater in a head slider. If the heater power is large, the head element portion undergoes plastic deformation. The plastic deformation of the head element portion decreases the recess depth of the head element portion.

    摘要翻译： 本发明的实施例有助于调整磁头滑块的磁头元件部分的凹陷深度。 在本发明的一个实施例中，在制造HDD的测试步骤中，如果头元件部分的凹陷深度不满足预定条件，则HDD检查头元件部分的凹陷深度并减小并调整凹槽深度 。 HDD将致动器移动到缩回位置的斜坡，并向头滑块中的加热器供电。 如果加热器功率大，则头元件部分发生塑性变形。 头元件部分的塑性变形减小了头元件部分的凹陷深度。

    Servo track write at low pressure using pressure insensitive air bearing surface
    3.
    发明授权
    Servo track write at low pressure using pressure insensitive air bearing surface 失效
    伺服磁道在低压下使用压力不敏感的空气轴承表面

    公开(公告)号：US07280306B2

    公开(公告)日：2007-10-09

    申请号：US11339861

    申请日：2006-01-25

    申请人： Hidetsugu Tanaka ,  Tsuyoshi Matsumoto ,  Atsushi Tatsugawa ,  Tatsushi Aoki

    发明人： Hidetsugu Tanaka ,  Tsuyoshi Matsumoto ,  Atsushi Tatsugawa ,  Tatsushi Aoki

    IPC分类号： G11B21/02

    CPC分类号： G11B21/21 ,  G11B5/59627 ,  G11B5/6005 ,  G11B5/6082 ,  Y10T29/49025 ,  Y10T29/49032

    摘要： Embodiments of the invention provide a manufacturing method for a disk drive which allows highly accurate recording of servo data without substituting the internal gas of the disk drive, and such a magnetic disk drive and servo track writer. In one embodiment, a disk, a magnetic head slider with a head for writing data onto and reading out data from the disk, a suspension for retaining the magnetic head slider, an arm for supporting the suspension, and a driving section for driving the arm are stored into an enclosure. When a servo track write operation is conducted, the enclosure interior is depressurized to an atmospheric pressure lower than normal pressure and then servo data is recorded on the disk.

    摘要翻译： 本发明的实施例提供了一种用于磁盘驱动器的制造方法，其允许伺服数据的高精度记录而不代替盘驱动器的内部气体，以及这种磁盘驱动器和伺服轨迹写入器。 在一个实施例中，盘，具有用于将数据写入盘并从盘读出数据的头的磁头滑块，用于保持磁头滑块的悬架，用于支撑悬架的臂和用于驱动臂的驱动部 存储在外壳中。 当进行伺服磁道写入操作时，外壳内部被减压至低于常压的大气压，然后将伺服数据记录在磁盘上。

    Servo track write at low pressure using pressure insensitive air bearing surface
    4.
    发明申请
    Servo track write at low pressure using pressure insensitive air bearing surface 失效
    伺服磁道在低压下使用压力不敏感的空气轴承表面

    公开(公告)号：US20060164752A1

    公开(公告)日：2006-07-27

    申请号：US11339861

    申请日：2006-01-25

    申请人： Hidetsugu Tanaka ,  Tsuyoshi Matsumoto ,  Atsushi Tatsugawa ,  Tatsushi Aoki

    发明人： Hidetsugu Tanaka ,  Tsuyoshi Matsumoto ,  Atsushi Tatsugawa ,  Tatsushi Aoki

    IPC分类号： G11B5/012 ,  G11B5/127

    CPC分类号： G11B21/21 ,  G11B5/59627 ,  G11B5/6005 ,  G11B5/6082 ,  Y10T29/49025 ,  Y10T29/49032

    摘要： Embodiments of the invention provide a manufacturing method for a disk drive which allows highly accurate recording of servo data without substituting the internal gas of the disk drive, and such a magnetic disk drive and servo track writer. In one embodiment, a disk, a magnetic head slider with a head for writing data onto and reading out data from the disk, a suspension for retaining the magnetic head slider, an arm for supporting the suspension, and a driving section for driving the arm are stored into an enclosure. When a servo track write operation is conducted, the enclosure interior is depressurized to an atmospheric pressure lower than normal pressure and then servo data is recorded on the disk.

    摘要翻译： 本发明的实施例提供了一种用于磁盘驱动器的制造方法，其允许伺服数据的高精度记录而不代替盘驱动器的内部气体，以及这种磁盘驱动器和伺服轨迹写入器。 在一个实施例中，盘，具有用于将数据写入盘并从盘读出数据的头的磁头滑块，用于保持磁头滑块的悬架，用于支撑悬架的臂和用于驱动臂的驱动部 存储在外壳中。 当进行伺服磁道写入操作时，外壳内部被减压至低于常压的大气压，然后将伺服数据记录在磁盘上。

    Disk drive disk with landing zone having textured and untextured regions
    5.
    发明授权
    Disk drive disk with landing zone having textured and untextured regions 失效
    具有着陆区域的磁盘驱动盘具有纹理和非纹理区域

    公开(公告)号：US06927941B1

    公开(公告)日：2005-08-09

    申请号：US09049861

    申请日：1998-03-27

    申请人： Hidetsugu Tanaka ,  Yoshio Yamamoto ,  Yoshinao Harada ,  Takao Chikazawa

    发明人： Hidetsugu Tanaka ,  Yoshio Yamamoto ,  Yoshinao Harada ,  Takao Chikazawa

    IPC分类号： G11B5/54 ,  G11B5/82 ,  G11B21/21

    CPC分类号： G11B5/54 ,  G11B5/82

    摘要： A disk storage medium and a disk drive which reduce friction during landing of the head/slider is described. The minimum fly height area of the head/slider is positioned over a texture free portion of the landing zone on the disk surface landing. In a preferred embodiment, the landing zone of a magnetic disk is a laser texture zone comprising a great number of bumps and is positioned during landing adjacent an area other than the minimum fly height area of the head/slider. The area facing the minimum fly height area of a head/slider has no bumps, i.e. is a bump free zone.

    摘要翻译： 描述了在头/滑块的着陆期间减少摩擦的磁盘存储介质和磁盘驱动器。 头/滑块的最小飞行高度区域位于盘表面着陆上着陆区的无纹理部分上。 在优选实施例中，磁盘的着陆区域是包括大量凸块的激光纹理区域，并且在与头部/滑块的最小飞行高度区域以外的区域相邻的位置处定位。 面对头/滑块的最小飞行高度区域的区域没有凸起，即是无凸起区域。

    Production of pinacolone
    7.
    发明授权
    Production of pinacolone 失效
    频哪酮的生产

    公开(公告)号：US4224252A

    公开(公告)日：1980-09-23

    申请号：US39300

    申请日：1979-05-15

    申请人： Sunao Kyo ,  Haruo Tsuchiya ,  Hidetsugu Tanaka

    发明人： Sunao Kyo ,  Haruo Tsuchiya ,  Hidetsugu Tanaka

    IPC分类号： C07C45/00 ,  C07C45/45 ,  C07C45/60 ,  C07C45/02

    CPC分类号： C07C45/45 ,  C07C45/00 ,  C07C45/60

    摘要： Disclosed are improved procedures for preparing pinacolone from compounds of general formula (I) ##STR1## wherein, either adjacent two of A, B, C and D form a single bond between them and the remaining two are hydrogen atoms, or both A and D are hydrogen atoms and one of B and C is a hydrogen atom and the other represents OH, Cl, Br, HSO.sub.4, H.sub.2 PO.sub.4 or ClO.sub.4, anda new procedure which enables preparing pinacolone from a compound of general formula (II) ##STR2## wherein, both W and Y are each hydrogen atoms and X and Z are the same or different and each represents OH, Cl, Br, HSO.sub.4, H.sub.2 PO.sub.4, ClO.sub.4 or RCOO wherein R is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, or one of W and Y is a hydrogen atom and the other forms a single bond together with X, and Z represents OH, Cl, Br, HSO.sub.4 H.sub.2 PO.sub.4, ClO.sub.4 or RCOO where R is defined as above. In the process of preparing pinacolone from compounds of formula (I) by reacting them with formaldehyde in the presence of a strong inorganic acid, the process can be improved by adding a salt of a strong inorganic acid, or a compound of formula (II). Pinacolone can also be produced by heating a compound of general formula (II) in the presence of a strong inorganic acid and this reaction, too, can be improved by the addition of a salt of a strong inorganic acid. The use of a salt of a strong inorganic acid according to the invention makes it possible to reduce the concentration and the amount of strong acid normally required, and to improve the yield of pinacolone.

    摘要翻译： 公开了通式（I）化合物（I）制备频哪酮的改进方法，其中A，B，C和D中的相邻两个在它们之间形成单键，其余两个是氢原子或两者 A和D是氢原子，B和C之一是氢原子，另一个表示OH，Cl，Br，HSO 4，H 2 PO 4或ClO 4，以及能够由通式（II）化合物制备频哪酮的新方法 （II）其中W和Y各自为氢原子，X和Z相同或不同，并且各自表示OH，Cl，Br，HSO 4，H 2 PO 4，ClO 4或RCOO，其中R是氢原子或烷基 1至3个碳原子，或W和Y中的一个为氢原子，另一个与X一起形成单键，Z表示OH，Cl，Br，HSO 4，H 2 PO 4，ClO 4或RCOO，其中R如上定义。 在强力无机酸存在下，通过与式（I）化合物的反应制备频哪酮可以通过加入强无机酸的盐或式（II）的化合物来改善， 。 倍他乐龙也可以通过在强无机酸存在下加热通式（II）的化合物来制备，该反应也可以通过加入强无机酸的盐来改善。 使用根据本发明的强无机酸的盐使得可以降低通常需要的强酸的浓度和量，并且可以提高频那酮的产率。

    Disk drive device and clearance control method thereof
    9.
    发明申请
    Disk drive device and clearance control method thereof 审中-公开
    磁盘驱动装置及其间隙控制方法

    公开(公告)号：US20090141391A1

    公开(公告)日：2009-06-04

    申请号：US12290533

    申请日：2008-10-30

    申请人： Kenichi Kuramoto ,  Masayuki Kurita ,  Yoshihiko Maeda ,  Hidetsugu Tanaka ,  Akihiro Sera ,  Katsumasa Yamazaki

    发明人： Kenichi Kuramoto ,  Masayuki Kurita ,  Yoshihiko Maeda ,  Hidetsugu Tanaka ,  Akihiro Sera ,  Katsumasa Yamazaki

    IPC分类号： G11B21/02

    CPC分类号： G11B5/581 ,  G11B5/583

    摘要： Embodiments of the present invention help to precisely control the clearance between a head and disk for the pressure without using a barometric sensor. In an embodiment of the present invention, an HDD determines a clearance from variations in operational parameters, and further determines a variation in pressure by deducting the clearance variation caused by a variation in temperature from the clearance. When the HDD controls the clearance in accordance with the pressure change, the HDD checks for head-disk contact. The accuracy and reliability in pressure measurement (clearance measurement) using operational parameters are not high. Therefore, confirming the pressure measurement by the presence or absence of head-disk contact eliminates head-disk contact in the following read/write operation to attain a securer margin for the clearance.

    摘要翻译： 本发明的实施例有助于在不使用气压传感器的情况下精确地控制压头与盘之间的压力间隙。 在本发明的一个实施例中，HDD确定与操作参数变化之间的间隙，并且通过减去由间隙的温度变化引起的间隙变化来进一步确定压力变化。 当HDD根据压力变化控制间隙时，HDD检查头盘接触。 使用操作参数的压力测量（间隙测量）的精度和可靠性不高。 因此，通过头盘接触的存在或不存在来确认压力测量可以在随后的读/写操作中消除头盘接触，以获得间隙的安全裕度。

    Hard disk drive magnetic head coated with low surface energy material
    10.
    发明授权
    Hard disk drive magnetic head coated with low surface energy material 失效
    硬盘驱动器磁头涂有低表面能材料

    公开(公告)号：US06421202B1

    公开(公告)日：2002-07-16

    申请号：US09571921

    申请日：2000-05-16

    申请人： Hidetsugu Tanaka ,  Masayuki Kanamaru ,  Masahiro Nagayoshi

    发明人： Hidetsugu Tanaka ,  Masayuki Kanamaru ,  Masahiro Nagayoshi

    IPC分类号： G11B540

    CPC分类号： G11B5/40 ,  G11B5/10 ,  G11B5/60 ,  G11B11/1058

    摘要： At least part of the surface of a read/write element of the magnetic head surface is coated with low surface energy materials. The low surface energy materials have sufficient humidity resistance, wetting resistance, and hydrophobicity to repel water from the coated surfaces. Such properties yield improved corrosion resistance for the coated surfaces. The low surface energy materials include fluorocarbon compounds (FCOC) and special materials such as perfluoroalkylpolyoxyethyleneethanol. The low surface energy materials are coated on the magnetic heads as thin films. The thin films have a thickness in the range of 5-100 angstroms, but are preferred in the range of 10-20 angstroms. The thin films provide sufficient adhesion on and corrosion protection of the heads without decreasing their performance.

    摘要翻译： 磁头表面的读/写元件的表面的至少一部分涂覆有低表面能材料。 低表面能材料具有足够的耐湿性，耐湿性和疏水性，以排斥涂层表面的水分。 这种性能对涂覆表面产生改善的耐腐蚀性。 低表面能材料包括碳氟化合物（FCOC）和特殊材料如全氟烷基聚氧乙烯乙醇。 低表面能材料作为薄膜涂覆在磁头上。 薄膜的厚度在5-100埃的范围内，但优选在10-20埃的范围内。 这些薄膜在不降低其性能的情况下提供了头部的足够的粘合性和防腐蚀性。