公开(公告)号：US20070019331A1

公开(公告)日：2007-01-25

申请号：US11283729

申请日：2005-11-22

申请人： Takuma Kido ,  Keiji Aruga ,  Shinji Koganezawa ,  Toru Watanabe

发明人： Takuma Kido ,  Keiji Aruga ,  Shinji Koganezawa ,  Toru Watanabe

IPC分类号： G11B5/48

CPC分类号： G11B5/4813 ,  G11B5/4826

摘要： A plate member is made of a metal material lighter than stainless steel in a suspension for a head slider. This leads to a reduction in the weight of the suspension. The natural frequency of the suspension is thus raised. Moreover, the viscoelastic member is interposed between the front surface of the plate member and the back surface of the flexure. This structure allows either the plate member or the flexure to act as a base and the other to act as a constraining member. In other words, the plate member, the flexure and the viscoelastic member in combination act as a so-called vibration damper including constraining layers. The viscoelastic member serves to further suppress vibration of the plate member and the flexure.

摘要翻译： 板构件由用于头滑块的悬架中的不同于不锈钢的金属材料制成。 这导致悬架的重量减小。 因此悬挂的固有频率提高。 此外，粘弹性构件插入在板构件的前表面和挠曲件的后表面之间。 该结构允许板构件或挠曲件用作基座，另一个用作约束构件。 换句话说，组合的板构件，挠曲件和粘弹构件用作包括约束层的所谓的振动阻尼器。 粘弹性构件用于进一步抑制板构件的振动和挠曲。

公开(公告)号：US20060221506A1

公开(公告)日：2006-10-05

申请号：US11208570

申请日：2005-08-23

申请人： Kenichiro Aoki ,  Toshiyuki Nakada ,  Keiji Aruga ,  Yoshiaki Nagasawa ,  Nobuyuki Hirono ,  Yasuhiro Hamada ,  Makoto Sakairi

发明人： Kenichiro Aoki ,  Toshiyuki Nakada ,  Keiji Aruga ,  Yoshiaki Nagasawa ,  Nobuyuki Hirono ,  Yasuhiro Hamada ,  Makoto Sakairi

IPC分类号： G11B5/48

CPC分类号： G11B5/4813

摘要： A method for manufacturing a head stack assembly that includes a pair of suspensions each of which supports a head, an arm that drives the head, and a pair of base plates that attach the pair of suspensions to both sides of the arm that has a perforation hole, each of the pair of base plates having a boss with an opening includes the step of swaging the pair of base plates with the arm by passing, in one direction, a processing member larger than the opening through the perforation hole and the base plates while the pair of base plates are being inserted into the perforation hole at both sides of the perforation hole, wherein where a neutral plane is defined as a plane that halves a thickness of the arm and is perpendicular to a section that includes a center axis of the perforation hole, a first position is defined as a position that has a minimum internal diameter of the base plate, and a second position is defined as a position closest to the neutral plane among contact positions between the base plates and the arm, a distance between the neutral plane and the first position is equal to or smaller than a distance between the neutral plane and the second position before the swaging step.

公开(公告)号：US20050152070A1

公开(公告)日：2005-07-14

申请号：US11043015

申请日：2005-01-25

申请人： Kei Funabashi ,  Keiji Aruga

发明人： Kei Funabashi ,  Keiji Aruga

IPC分类号： G11B5/48 ,  G11B5/55 ,  G11B21/08 ,  G11B21/21

CPC分类号： G11B5/4833 ,  G11B5/5582

摘要： The present invention relates to a magnetic head actuator and a magnetic disk device in which a magnetic head is moved to a predetermined position by actuating an arm on a revolving magnetic disk. A magnetic head actuator comprises an arm in which a suspension for supporting a magnetic head is provided, the arm being actuated to move the magnetic head. A damper material is provided on at least one side of the arm, the damper material comprising a restriction material and a viscoelastic material, the restriction material suppressing vibrations of the arm, and the viscoelastic material absorbing vibrations of the arm.

摘要翻译： 磁头驱动器和磁盘装置技术领域本发明涉及一种磁头驱动器和磁盘装置，其中磁头通过驱动旋转磁盘上的臂而移动到预定位置。 磁头致动器包括一臂，其中设有用于支撑磁头的悬架，所述臂被致动以移动磁头。 阻尼材料设置在臂的至少一侧上，阻尼材料包括限制材料和粘弹性材料，所述限制材料抑制臂的振动，并且所述粘弹性材料吸收臂的振动。

公开(公告)号：US06466400B1

公开(公告)日：2002-10-15

申请号：US09712362

申请日：2000-11-14

申请人： Hiroyuki Iwahara ,  Keiji Aruga ,  Yoshinori Ogawa ,  Yoshiaki Koizumi ,  Mitsuhiro Izumi ,  Mitsuaki Yoshida ,  Yasuhiro Miura

发明人： Hiroyuki Iwahara ,  Keiji Aruga ,  Yoshinori Ogawa ,  Yoshiaki Koizumi ,  Mitsuhiro Izumi ,  Mitsuaki Yoshida ,  Yasuhiro Miura

IPC分类号： G11B1702

CPC分类号： G11B17/0287 ,  G11B33/08

摘要： Disclosed herein is a magnetic disk drive including a spindle shaft fixed to a base, a coil mounted on the spindle shaft, a spindle hub rotatably mounted on the spindle shaft, a magnetic disk fixed to the spindle hub and having a plurality of tracks, a permanent magnet fixed to the spindle hub, a magnetic head for reading/writing information from/to the magnetic disk, and an actuator for moving the magnetic head across the tracks of the magnetic disk. The magnetic disk drive further includes a cover fixed to the base and having a hole at a position corresponding to the spindle shaft, a first metal washer placed on the cover at a portion around the hole, a second metal washer for sandwiching the cover at the portion around the hole in cooperation with the first metal washer, and a screw for securing the first and second metal washers to the spindle shaft.

摘要翻译： 这里公开了一种磁盘驱动器，其包括固定到基座的主轴，安装在主轴上的线圈，可旋转地安装在主轴上的主轴毂，固定到主轴毂并具有多个轨道的磁盘， 固定到主轴毂的永磁体，用于从/向磁盘读取/写入信息的磁头，以及用于使磁头移动通过磁盘的轨道的致动器。 所述磁盘驱动器还包括固定到所述基座并且在与所述主轴相对应的位置处具有孔的盖，在所述孔周围的部分上放置在所述盖上的第一金属垫圈，用于将所述盖夹在所述盖上的第二金属垫圈 与第一金属垫圈相配合的孔周围，以及用于将第一和第二金属垫圈固定到主轴上的螺钉。

公开(公告)号：US6064541A

公开(公告)日：2000-05-16

申请号：US848138

申请日：1997-04-28

申请人： Tatsuro Sasamoto ,  Isamu Tomita ,  Keiji Aruga

发明人： Tatsuro Sasamoto ,  Isamu Tomita ,  Keiji Aruga

IPC分类号： G11B5/596 ,  G11B21/10

CPC分类号： G11B5/59688

摘要： Disclosed are a servo pattern writing method for magnetic disk drives making it possible to write a high-density and easily controllable servo pattern with high producibility, and a magnetic disk drive in which a servo pattern is written according to the method. The servo pattern writing method for magnetic disk drives in which a servo pattern is written on a plurality of surfaces in a magnetic disk drive having the plurality of surfaces comprises a step of writing a master servo pattern on a master surface that is one of the plurality of surfaces, and a step of writing a servo pattern on the surfaces other than the master surface while performing positioning on the basis of the master servo pattern. The master servo pattern contains a pattern identical to the servo pattern to be written on the surfaces other than the master surface. The master servo pattern is written before the master surface is incorporated in a main unit of the magnetic disk drive. Part of the master servo pattern other than the pattern identical to the servo pattern is deleted after the servo pattern is written on the surfaces other than the master surface.

摘要翻译： 公开了一种用于磁盘驱动器的伺服模式写入方法，其可以以高可生产性写入高密度且容易控制的伺服模式，以及根据该方法写入伺服模式的磁盘驱动器。 在具有多个表面的磁盘驱动器的多个表面上写入伺服图形的磁盘驱动器的伺服图案写入方法包括在主表面上写入主伺服图案的步骤，该主表面是多个 并且在基于主伺服模式执行定位的同时，在主表面以外的表面上写入伺服图案的步骤。 主伺服模式包含与要写在主表面以外的表面上的伺服模式相同的模式。 在将主表面并入磁盘驱动器的主单元之前，写入主伺服模式。 伺服模式写在主表面以外的表面上，删除与伺服模式相同的模式以外的主伺服模式的一部分。

公开(公告)号：US5986362A

公开(公告)日：1999-11-16

申请号：US40169

申请日：1998-03-17

申请人： Tomoo Sukagawa ,  Keiji Aruga

发明人： Tomoo Sukagawa ,  Keiji Aruga

IPC分类号： G11B21/02 ,  G11B5/55 ,  G11B25/04 ,  H02K33/18 ,  H02K41/035 ,  H02K41/02 ,  G11B33/00

CPC分类号： H02K41/0358 ,  G11B25/043 ,  G11B5/5521

摘要： A magnetic circuit for a voice coil motor of flat-coil type used with a magnetic device is disclosed. The magnetic circuit is intended to flatten the torque constant curve for swinging the rotor of the voice coil motor while at the same time preventing the torque constant from decreasing. For this purpose, the magnetic circuit comprises an upper yoke and a lower yoke opposed to a flat coil arranged on the rotor, a pair of side yokes for coupling the upper and lower yokes to each other at the ends thereof, and a magnet arranged on the lower yoke. The magnet is shaped arcuate so that the width in the neighborhood of each end thereof in the direction of motion of the flat coil is larger than a standard width and smaller than the standard width in the portions of the magnet between each end and the central portion thereof.

摘要翻译： 公开了一种用于与磁性装置一起使用的扁平线圈型音圈电动机的磁路。 磁路旨在使用于使音圈电机的转子摆动的转矩常数曲线变平坦，同时防止转矩常数降低。 为此，磁路包括上部轭和与设置在转子上的扁平线圈相对的下轭铁，一对用于将上轭铁和下轭铁在其端部彼此连接的侧轭铁和布置在 下轭。 磁体呈圆弧状，使得其扁平线圈的运动方向的每端的附近的宽度大于标准宽度，并且小于每个端部与中心部分之间的磁体部分的标准宽度 其中。

公开(公告)号：US07730763B2

公开(公告)日：2010-06-08

申请号：US11650952

申请日：2007-01-09

申请人： Toru Kohei ,  Nobuyoshi Nakayama ,  Shigeyuki Kotake ,  Keiji Aruga

发明人： Toru Kohei ,  Nobuyoshi Nakayama ,  Shigeyuki Kotake ,  Keiji Aruga

IPC分类号： G01N3/30

CPC分类号： H02K15/165

摘要： An apparatus that corrects a weight imbalance around an axis of a spindle motor that rotates a disc in a disc drive includes an impact applicator that applies an impact to a housing that houses the spindle motor and the disc, a plate that supports the housing and impact applicator, a spring member that supports the plate, and enables the plate and the housing to vibrate together when the spindle motor rotates, and a detector that detects a vibration of the housing when the spindle motor rotates.

摘要翻译： 校正围绕在盘驱动器中旋转盘的主轴电机的轴线的重量不平衡的装置包括冲击施加器，其对容纳主轴电机和盘的壳体施加冲击，支撑壳体和冲击的板 施加器，支撑板的弹簧构件，并且当主轴电机旋转时使板和壳体能够一起振动;以及检测器，其在主轴电机旋转时检测壳体的振动。

公开(公告)号：US07599150B2

公开(公告)日：2009-10-06

申请号：US11208570

申请日：2005-08-23

申请人： Kenichiro Aoki ,  Toshiyuki Nakada ,  Keiji Aruga ,  Yoshiaki Nagasawa ,  Nobuyuki Hirono ,  Yasuhiro Hamada ,  Makoto Sakairi

发明人： Kenichiro Aoki ,  Toshiyuki Nakada ,  Keiji Aruga ,  Yoshiaki Nagasawa ,  Nobuyuki Hirono ,  Yasuhiro Hamada ,  Makoto Sakairi

IPC分类号： G11B5/48

CPC分类号： G11B5/4813

摘要： A method for manufacturing a head stack assembly that includes a pair of suspensions each of which supports a head, an arm that drives the head, and a pair of base plates that attach the pair of suspensions to both sides of the arm that has a perforation hole, each of the pair of base plates having a boss with an opening includes the step of swaging the pair of base plates with the arm by passing, in one direction, a processing member larger than the opening through the perforation hole and the base plates while the pair of base plates are being inserted into the perforation hole at both sides of the perforation hole, wherein where a neutral plane is defined as a plane that halves a thickness of the arm and is perpendicular to a section that includes a center axis of the perforation hole, a first position is defined as a position that has a minimum internal diameter of the base plate, and a second position is defined as a position closest to the neutral plane among contact positions between the base plates and the arm, a distance between the neutral plane and the first position is equal to or smaller than a distance between the neutral plane and the second position before the swaging step.

摘要翻译： 一种用于制造头堆叠组件的方法，其包括一对悬架，每个悬架支撑头部，驱动头部的臂和一对底板，其将一对悬架连接到臂的两侧，所述两侧具有穿孔 所述一对基板中的每一个具有带有开口的凸台，所述一对基板中的每一个具有开口的凸台包括：使所述一对基板与所述臂成一体的步骤，所述步骤沿一个方向通过穿过所述穿孔而大于所述开口的处理构件 而一对基板正在插入到穿孔的两侧的穿孔中，其中中性平面被定义为将臂的厚度减半并且垂直于包括中心轴的部分的平面 穿孔，第一位置被定义为具有基板的最小内径的位置，并且第二位置被定义为在接触位置中最靠近中立平面的位置为 在基板和臂之间，中间平面与第一位置之间的距离等于或小于在模锻步骤之前的中性平面和第二位置之间的距离。

公开(公告)号：US07414810B2

公开(公告)日：2008-08-19

申请号：US10925564

申请日：2004-08-25

申请人： Kenichiro Aoki ,  Toshinori Hoshino ,  Toshiyuki Nakada ,  Keiji Aruga ,  Hiroshi Maeda

发明人： Kenichiro Aoki ,  Toshinori Hoshino ,  Toshiyuki Nakada ,  Keiji Aruga ,  Hiroshi Maeda

IPC分类号： G11B5/23 ,  G11B5/235

CPC分类号： G11B5/127 ,  G11B5/17 ,  G11B5/3106 ,  G11B5/3123 ,  G11B5/3133 ,  G11B5/3136 ,  G11B5/6005

摘要： A magnetic head structure has a coil and a magnetic pole allowing a magnetic flux generated by the coil to be transmitted therethrough and forming a magnetic gap. An insulating layer surrounds the coil, and a protective layer covers the insulating layer and the magnetic pole. The insulating layer has a volume equal to or greater than a value which is determined with respect to a thickness of the protective layer. It is preferable to increase the volume of the insulating layer as the thickness of the protective layer is made greater. By increasing the volume of the insulating layer, the protrusion of a portion of a floating surface of the magnetic head slider near the magnetic pole, toward the disk, is reduced.

摘要翻译： 磁头结构具有线圈和磁极，其允许由线圈产生的磁通量穿过其并形成磁隙。 绝缘层包围线圈，保护层覆盖绝缘层和磁极。 绝缘层具有等于或大于相对于保护层的厚度确定的值的体积。 当保护层的厚度增大时，优选增加绝缘层的体积。 通过增加绝缘层的体积，磁头滑块附近的磁极的浮动面的一部分朝向磁盘的突起减小。

公开(公告)号：US20070253291A1

公开(公告)日：2007-11-01

申请号：US11489697

申请日：2006-07-19

申请人： Keiji Watanabe ,  Keiji Aruga ,  Hiroshi Chiba

发明人： Keiji Watanabe ,  Keiji Aruga ,  Hiroshi Chiba

IPC分类号： G11B11/00

CPC分类号： G11B17/02 ,  G11B17/038

摘要： A first component defines a threaded bore. A second component is kept in contact with the first component. A clamping screw penetrates through the second component and is screwed in the threaded bore. A lubricating agent film is interposed between the threaded bore and the clamping screw. The lubricating agent film is made of a macromolecular compound having a polar end group. The lubricating agent film serves to reduce the friction between the threaded bore and the clamping screw. Generation of dust is prevented when the clamping screw is being screwed into the threaded bore. In addition, the clamping screw exhibits a larger axial force at a certain amount of a fastening torque as compared with a conventional clamping screw. A larger axial force can thus be applied to hold the second component onto the first component.

摘要翻译： 第一部件限定螺纹孔。 第二组分与第一组分保持接触。 夹紧螺钉穿过第二部件并拧入螺纹孔。 润滑剂膜介于螺纹孔和夹紧螺钉之间。 润滑剂膜由具有极性端基的高分子化合物制成。 润滑剂膜用于减小螺纹孔和夹紧螺钉之间的摩擦。 当夹紧螺丝拧入螺纹孔时，防止产生灰尘。 此外，与常规的夹紧螺钉相比，夹紧螺钉在一定量的紧固扭矩下表现出较大的轴向力。 因此可以施加较大的轴向力以将第二部件保持在第一部件上。