公开(公告)号：US06362936B1

公开(公告)日：2002-03-26

申请号：US09254572

申请日：1999-03-04

申请人： Hiroo Inoue ,  Keishi Takahashi ,  Hiroshi Matsuda ,  Fujio Harako

发明人： Hiroo Inoue ,  Keishi Takahashi ,  Hiroshi Matsuda ,  Fujio Harako

IPC分类号： G11B2116

摘要： A head support assembly for a disk drive is comprised of a head suspension assembly connected to an actuator arm at one end and supporting a head at the other end, wherein a projection is formed on a flexure closely fixed on a thin-plate load beam, said projection projecting toward a disk surface and having a smooth surface. The projection is formed at a region somewhat close to the head supporting end from the hinge portion of the load beam. When shock is applied to the disk drive, bending occurs around the hinge portion of the load beam. During such bending, the projection having a smooth round surface is caused to contact the disk, whereby the disk surface is prevented from being damaged.

公开(公告)号：US5671104A

公开(公告)日：1997-09-23

申请号：US582292

申请日：1996-01-03

申请人： Kohji Takahashi ,  Hiroshi Matsuda ,  Keishi Takahashi

发明人： Kohji Takahashi ,  Hiroshi Matsuda ,  Keishi Takahashi

IPC分类号： G11B21/02 ,  G11B21/22 ,  G11B25/04 ,  G11B5/54

CPC分类号： G11B21/22 ,  G11B25/043

摘要： A disk drive comprises a disk recording medium; an actuator traveling on the surface of the disk recording medium; a lock device vertically movable for locking the actuator when located upward or for releasing the actuator when located downward, composed of an elastic plate spring; a first magnetic-field supply for latching the lock device to the lower position by the action of a first magnetic force; a second magnetic-field supply for latching the lock device to the upper position by the action of a second magnetic force; and a lock device motor to move the lock device to the upper position when a first current supplied or as to move the lock device to the lower position when the second current different from the first current is supplied.

摘要翻译： 磁盘驱动器包括盘记录介质; 在盘记录介质的表面上行进的致动器; 锁定装置，其可垂直移动，用于当位于向上时用于锁定致动器，或者当位于向下时释放致动器，由弹性板簧构成; 用于通过第一磁力的作用将锁定装置锁定到下部位置的第一磁场供应; 第二磁场电源，用于通过第二磁力的作用将锁定装置锁定到上部位置; 以及锁定装置马达，当提供第一电流时，将锁定装置移动到上部位置，或者当提供与第一电流不同的第二电流时将锁定装置移动到下部位置。

公开(公告)号：US5760997A

公开(公告)日：1998-06-02

申请号：US810962

申请日：1997-02-27

申请人： Ichiroh Koyanagi ,  Hiroshi Matsuda ,  Shinichi Matsuzaki ,  Koji Serizawa ,  Keishi Takahashi

发明人： Ichiroh Koyanagi ,  Hiroshi Matsuda ,  Shinichi Matsuzaki ,  Koji Serizawa ,  Keishi Takahashi

IPC分类号： G11B21/02 ,  G11B5/48 ,  G11B25/04 ,  H05K1/18 ,  H05K3/00 ,  G11B5/012 ,  G11B33/00 ,  H01R9/09 ,  H05K1/00

CPC分类号： G11B5/4846 ,  G11B25/043 ,  H05K1/189 ,  H01R12/59 ,  H05K2201/056 ,  H05K2201/2009 ,  H05K3/0058

摘要： In a hard disk drive, power and signals are transferred through a flexible cable 42 between a carriage having a magnetic head reading magnetic information while the positioning of the magnetic head is controlled on a magnetic disk and a card provided on the lower surface of a base. The movable section 44 of the flexible cable 42 is supported by the carriage to follow the carriage. A nonmovable section 46 is bent so as to enclose a reinforcement plate 50 and installed on the base through the reinforcement plate 50. The reinforcement plate 50 is used as a reinforcement for installing an AE module 54 on the upper surface 52 thereof. The reinforcement plate is also used as a reinforcement for connecting a carriage connector 84 to the card 40 through the lower surface 60 thereof. The reinforcement plate is used for maintaining an attitude to maintain the attitude of the movable section 44 in the lateral direction on a surface 64 of thickness of the plate. One reinforcement plate is needed for performing these operations.

摘要翻译： 在硬盘驱动器中，电源和信号通过柔性电缆42传送到具有读取磁信息的磁头的托架之间，磁头的定位被控制在磁盘上，而卡设置在基座的下表面上 。 柔性电缆42的可移动部分44由滑架支撑以跟随滑架。 弯曲不可移动部分46以包围加强板50并通过加强板50安装在基座上。加强板50用作在其上表面52上安装AE模块54的加强件。 加强板还用作通过其下表面60将托架连接器84连接到卡40的加强件。 加强板用于保持姿态以将可动部44的姿态沿横向保持在板的厚度的表面64上。 执行这些操作需要一个加强板。

公开(公告)号：US06900956B2

公开(公告)日：2005-05-31

申请号：US09825649

申请日：2001-04-04

申请人： Hiroki Kitahori ,  Kenji Kuroki ,  Hiroshi Matsuda ,  Satoshi Noguchi ,  Mutsuro Ohta ,  Keishi Takahashi ,  Hitoshi Tamura

发明人： Hiroki Kitahori ,  Kenji Kuroki ,  Hiroshi Matsuda ,  Satoshi Noguchi ,  Mutsuro Ohta ,  Keishi Takahashi ,  Hitoshi Tamura

IPC分类号： G11B5/024 ,  H01F7/14 ,  G11B5/03 ,  G11B5/02

CPC分类号： G11B5/0245 ,  H01F7/14

摘要： A magnetic circuit is provided in an enclosure that can efficiently generate magnetic flux from the enclosure, configuring a magnetic disk, to a magnetic disk. Thus, by providing such a magnetic circuit, a magnetic field different from that in other enclosure parts, that is, a local magnetic field, is generated from the magnetic circuit in case the disk device is set in an external magnetic field. Hence, this local magnetic field can effectively erase data in the magnetic disk. In particular, since the local magnetic field is generated even if the external magnetic field is weak, it is possible to not only suppress the demagnetization of permanent magnets used in the spindle motor at minimum, but also effectively erase data in the magnetic disk.

摘要翻译： 在外壳中提供磁路，其可以有效地从壳体产生磁通量，将磁盘配置到磁盘。 因此，通过设置这样的磁路，在将磁盘装置设定在外部磁场的情况下，从磁路产生与其它外壳部分不同的磁场，即磁场。 因此，该局部磁场可以有效地擦除磁盘中的数据。 具体地说，由于即使外部磁场较弱也产生局部磁场，所以不仅可以抑制主轴电动机中使用的永久磁铁的退磁至少，还可以有效地擦除磁盘中的数据。

公开(公告)号：US5896242A

公开(公告)日：1999-04-20

申请号：US924219

申请日：1997-09-05

申请人： David W. Albrecht ,  Hiroshi Matsuda ,  Keishi Takahashi

发明人： David W. Albrecht ,  Hiroshi Matsuda ,  Keishi Takahashi

IPC分类号： F16C19/08 ,  F16C19/52 ,  F16C35/063 ,  G11B19/20 ,  H02K5/173 ,  F16C35/067 ,  G11B33/14

CPC分类号： H02K5/1735 ,  F16C19/525 ,  F16C35/063 ,  F16C19/08

摘要： A spindle motor assembly includes a hub, a motor, and a bearing cartridge having a plurality of bearing balls disposed between a sleeve and a shaft. The shaft includes a cylindrical hollow portion which is attached to a cylindrical protrusion portion of the hub to provide a stable attachment between the hub and shaft without increasing the height of the spindle motor assembly. Grooves are formed on the outer peripheral surface of the cylindrical protrusion portion to alleviate stress between the hub and shaft resulting from thermal expansion.

摘要翻译： 主轴电动机组件包括轮毂，电动机和具有设置在套筒和轴之间的多个轴承滚珠的轴承盒。 轴包括圆柱形中空部分，其连接到轮毂的圆柱形突出部分，以在轮毂和轴之间提供稳定的附接，而不增加主轴马达组件的高度。 在圆柱形突起部分的外周表面上形成凹槽以减轻由热膨胀引起的毂和轴之间的应力。

公开(公告)号：US06639758B2

公开(公告)日：2003-10-28

申请号：US09791993

申请日：2001-02-21

申请人： Mutsuro Ohta ,  Hiroshi Matsuda ,  Takahide Nakamura ,  Keishi Takahashi

发明人： Mutsuro Ohta ,  Hiroshi Matsuda ,  Takahide Nakamura ,  Keishi Takahashi

IPC分类号： G11B554

CPC分类号： G11B5/54 ,  G11B21/22

摘要： The present invention provides a depopulation version hard disk drive apparatus that has a reduced number of magnetic heads and suspension arms from a standard hard disk drive apparatus, wherein the magnetic head can still be properly controlled during a loading state. The hard disk drive apparatus includes a ramp which interfaces with the suspension arm when loading and unloading the arm. An angle of a second slope surface 61c of the ramp in the depopulation version hard disk drive is set larger than that of the corresponding slope surface of the ramp 6 the a standard version hard disk drive.

摘要翻译： 本发明提供了一种从标准硬盘驱动装置中减少了数量的磁头和悬臂的销售版本的硬盘驱动装置，其中磁头在装载状态下仍可被适当地控制。 硬盘驱动装置包括当装载和卸载臂时与悬架臂接合的斜坡。 减数版硬盘驱动器中斜坡的第二倾斜表面61c的角度被设置为大于标准版本硬盘驱动器的斜坡6的相应斜面的角度。

公开(公告)号：US20050057848A1

公开(公告)日：2005-03-17

申请号：US10889827

申请日：2004-07-12

申请人： Kazutaka Okasaka ,  Hiroki Kitahori ,  Taichi Nakamura ,  Keishi Takahashi

发明人： Kazutaka Okasaka ,  Hiroki Kitahori ,  Taichi Nakamura ,  Keishi Takahashi

IPC分类号： G11B25/04 ,  G11B33/12 ,  G11B17/00

CPC分类号： G11B33/121 ,  G11B25/043

摘要： A portable, small magnetic disk drive to be mounted on a portable device operates silently at low power consumption. In one embodiment, a spindle motor is fixed to the bottom wall of a metal base plate formed in the shape of a box by press working. The spindle motor is provided with a fluid dynamic bearing (FDB). A spindle hub is supported on the FDB, and a small magnetic disk having a diameter of about 1.8 in. (45.7 mm) or below is mounted on the spindle hub and is fastened to the spindle hub with a top clamp. The rotating speed of the spindle motor is about 4200 rpm or below. Gram load for pressing a magnetic head toward the magnetic disk is about 0.5 gf or above and less than about 1.0 gf.

摘要翻译： 要安装在便携式设备上的便携式小型磁盘驱动器以低功耗静音运行。 在一个实施例中，主轴电动机通过冲压加工固定在形成为箱形的金属底板的底壁上。 主轴电机设有流体动力轴承（FDB）。 主轴毂支撑在FDB上，直径约为1.8英寸（45.7 mm）或以下的小型磁盘安装在主轴毂上，并用顶部夹具固定在主轴毂上。 主轴电机的转速约为4200 rpm或更低。 用于将磁头朝向磁盘按压的克负荷约为0.5gf或以上且小于约1.0gf。

公开(公告)号：US6163440A

公开(公告)日：2000-12-19

申请号：US69033

申请日：1998-04-27

申请人： Kohji Takahashi ,  Keishi Takahashi ,  Vijayeshwar D. Khanna ,  Thomas R. Albrecht ,  Suresh Kumar ,  Muthuthamby Sri-Jayantha

发明人： Kohji Takahashi ,  Keishi Takahashi ,  Vijayeshwar D. Khanna ,  Thomas R. Albrecht ,  Suresh Kumar ,  Muthuthamby Sri-Jayantha

IPC分类号： G11B5/54 ,  G11B21/02 ,  G11B21/22

CPC分类号： G11B5/54 ,  G11B21/22

摘要： The present invention relates to an inertial latch mechanism of an actuator of a thin disk drive device. An inertial latch mechanism comprises a latch lever rotatable on a pivot from a release position to a latch position, and an inertial lever which is rotatable on a pivot and has a moment of inertia larger than that of the latch lever. The inertial lever rotates counterclockwise when a counterclockwise shock is given to the actuator, and pulls the latch lever at a first latch part by a first latch projection to move the latch lever to the latch position. The inertial lever also rotates clockwise when a clockwise shock is given to the actuator, and pushes the latch lever at a second latch part by a second latch projection to latch the actuator which has bumped against a crash stop and is reversely rotating.

摘要翻译： 本发明涉及一种薄盘驱动装置的致动器的惯性锁定机构。 惯性闭锁机构包括一个可在从释放位置到锁定位置的枢轴上旋转的闩杆，以及可在枢轴上旋转并具有大于闩锁杆惯性矩的惯性杆。 当向致动器施加逆时针冲击时，惯性杆逆时针旋转，并且通过第一闩锁突起将闩锁杆拉到第一闩锁部分，以将闩锁杆移动到闩锁位置。 当向致动器施加顺时针冲击时，惯性杆也顺时针旋转，并且通过第二闩锁突起将闩锁杆推动在第二闩锁部分处，以将致动器闩锁以抵抗碰撞停止并反向旋转。

公开(公告)号：US08526132B2

公开(公告)日：2013-09-03

申请号：US12699581

申请日：2010-02-03

申请人： Thomas R. Albrecht ,  Masahito Kobayashi ,  Keishi Takahashi ,  Kei Yasuna

发明人： Thomas R. Albrecht ,  Masahito Kobayashi ,  Keishi Takahashi ,  Kei Yasuna

IPC分类号： G11B5/09 ,  G11B5/596 ,  G11B21/02

CPC分类号： G11B5/596 ,  G11B15/18

摘要： Embodiments herein illustrate patterned servo data that allows the patterned disk to be planarized with a relatively simple planarization process. A magnetic disk, in this regard, includes a data region having a plurality of tracks. The magnetic disk also includes a plurality of servo bursts patterned in the magnetic disk at a plurality of locations in each track. The servo bursts are operable to direct a controller to center a write head over a track in the data region and write a track identification. The servo bursts include magnetic lands and nonmagnetic grooves. The magnetic lands of the servo burst are generally configured with a uniform polarity of magnetization and a first uniform width. The nonmagnetic grooves are configured with a second uniform width.

摘要翻译： 本文的实施例示出了图案化的伺服数据，其允许图案化的盘通过相对简单的平坦化处理来平坦化。 在这方面，磁盘包括具有多个轨道的数据区域。 磁盘还包括在每个轨道中的多个位置处在磁盘中图案化的多个伺服脉冲串。 伺服突发可操作以引导控制器将写头置于数据区域中的轨道上，并写入轨迹标识。 伺服脉冲串包括磁场和非磁性凹槽。 伺服脉冲串的磁场通常被配置为具有均匀的磁化极性和第一均匀宽度。 非磁性槽配置有第二均匀宽度。

公开(公告)号：US06643087B1

公开(公告)日：2003-11-04

申请号：US09519142

申请日：2000-03-06

申请人： Kenji Kuroki ,  Thomas R. Albrecht ,  Fuminori Sai ,  Yuzo Nakagawa ,  Nobuhisa Koide ,  Masashi Murai ,  Keishi Takahashi ,  Timothy C. Reiley ,  Erno H. Klassen

发明人： Kenji Kuroki ,  Thomas R. Albrecht ,  Fuminori Sai ,  Yuzo Nakagawa ,  Nobuhisa Koide ,  Masashi Murai ,  Keishi Takahashi ,  Timothy C. Reiley ,  Erno H. Klassen

IPC分类号： G11B2102

CPC分类号： G11B21/12 ,  G11B19/04

摘要： A method and apparatus to provide a retract circuit that can correspond to the tendency toward miniaturization and low supply voltage. When drive supply voltage Vcc is applied, a retract circuit charges a retract condenser Cr with boosted voltage Vup, equal to three times Vcc, generated by a booster circuit. Then, if the drive supply voltage Vcc is cut off and a VCM driver stops, the retract circuit detects power-off with a power OFF sense circuit, and provides retract delay time by a retract delay circuit. Furthermore, when the retract delay time elapses after the drive power supply is turned off, the retract driver switches the switching circuits on, discharges the retract condenser, charged at the boosted voltage, supplies discharge current to a voice coil, and retracts the head assembly.

摘要翻译： 一种提供可以对应于小型化和低电源电压趋势的缩回电路的方法和装置。 当施加驱动电源电压Vcc时，后退电路对由升压电路产生的升压电压Vup等于三倍Vcc充电回缩电容器Cr。 然后，如果驱动器电源电压Vcc被切断并且VCM驱动器停止，则缩回电路用电源OFF感测电路检测掉电，并且通过缩回延迟电路提供缩回延迟时间。 此外，当在驱动电源关闭之后经过缩回延迟时间时，后退驱动器接通开关电路，放电收缩冷凝器，以升压电压充电，向扬声器提供放电电流，并使头部组件 。