公开(公告)号：US6115213A

公开(公告)日：2000-09-05

申请号：US913343

申请日：1997-09-11

申请人： Hiroshi Ikeda ,  Shinobu Yoshida ,  Masahiko Sega

发明人： Hiroshi Ikeda ,  Shinobu Yoshida ,  Masahiko Sega

IPC分类号： F16C19/54 ,  F16C19/56 ,  G11B5/55 ,  G11B17/038 ,  G11B25/04 ,  G11B17/08 ,  F16C19/00 ,  H02K5/16

CPC分类号： G11B25/043 ,  F16C19/54 ,  F16C19/56 ,  G11B17/038 ,  G11B5/5521 ,  F16C2370/12

摘要： A magnetic disk drive which is to be used for recording and/or reproducing information, and a bearing assembly for use in the same magnetic disk drive. The bearing assembly includes two bearings of different diameters, of which a small-diameter bearing is arranged within an inner periphery of a large-diameter bearing. The two bearings are joined by means of bearing coupling members for connecting respectively inner rings and outer rings of the bearings. The small-diameter bearing is arranged within the inner periphery of the large-diameter bearing, and therefore a height of the bearing assembly can be made thinner to about one and a half times a height of a single bearing. It is therefore possible to make the magnetic disk drive smaller and thinner by employing this bearing assembly.

摘要翻译： PCT No.PCT / JP95 / 00480 Sec。 371日期：1997年9月11日 102（e）1997年9月11日PCT PCT 1995年3月17日PCT公布。 第WO96 / 29521号公报 日期1996年9月26日用于记录和/或再现信息的磁盘驱动器，以及用于同一磁盘驱动器的轴承组件。 轴承组件包括两个不同直径的轴承，其中小直径轴承布置在大直径轴承的内周边内。 两个轴承通过用于连接轴承的内圈和外圈的轴承联接构件连接。 小直径轴承布置在大直径轴承的内周内，因此轴承组件的高度可以变得更薄到单个轴承的高度的大约1.5倍。 因此，可以通过使用该轴承组件来使磁盘驱动器变得越来越小。

公开(公告)号：US5241435A

公开(公告)日：1993-08-31

申请号：US541724

申请日：1990-06-21

申请人： Shigeyoshi Saito ,  Yuji Hata ,  Takuji Ogawa ,  Jyousei Shimizu ,  Tsuyoshi Takahashi ,  Masahiko Sega ,  Kazuo Ono

发明人： Shigeyoshi Saito ,  Yuji Hata ,  Takuji Ogawa ,  Jyousei Shimizu ,  Tsuyoshi Takahashi ,  Masahiko Sega ,  Kazuo Ono

IPC分类号： G11B5/596

CPC分类号： G11B5/59633

摘要： A method of recording a servo signal on each track of a magnetic disk includes a first signal for demagnetizing the magnetic disk and a second signal for forming the servo signal. The recording width (core width) of the magnetic head is made greater than the width of the track. Parts for recording signals and not recording signals are set in each track. The first and second signals are selected and recorded in the signal recording part, thereby to form the servo signal. Current to be conducted to the magnetic head is cut in the part for not recording signals, and the track is skipped to the next part for recording signals. When the recording of the track has ended, the magnetic head is moved to the next track, and the above steps are repeated.

摘要翻译： 在磁盘的每个磁道上记录伺服信号的方法包括用于磁化磁化的第一信号和用于形成伺服信号的第二信号。 使磁头的记录宽度（磁心宽度）大于磁道的宽度。 在每个轨道中设置用于记录信号而不记录信号的部分。 第一和第二信号被选择并记录在信号记录部分中，从而形成伺服信号。 要在磁头上传输的电流被切断，不记录信号，并将磁道跳到下一部分进行记录信号。 当轨道的记录结束时，磁头被移动到下一个轨道，并重复上述步骤。

公开(公告)号：US5862011A

公开(公告)日：1999-01-19

申请号：US699425

申请日：1996-08-19

申请人： Masahiko Sega ,  Tomio Suzuki ,  Tsuyoshi Takahashi ,  Hiroyuki Mitsuhashi ,  Tetsuo Yuki ,  Takashi Matsuki

发明人： Masahiko Sega ,  Tomio Suzuki ,  Tsuyoshi Takahashi ,  Hiroyuki Mitsuhashi ,  Tetsuo Yuki ,  Takashi Matsuki

IPC分类号： G11B25/04 ,  G11B33/12 ,  G11B5/012

CPC分类号： G11B33/121 ,  G11B25/043

摘要： A magnetic disk device has a large capacity with a small and thin structure and includes a spindle system, an actuator system, a control package for controlling the systems, and a PCMCIA connector. The spindle system is of an in-hub structure wherein two magnetic disks are rotated in inside diameter portions of the magnetic disks. The actuator system has sliders mounting magnetic heads for writing and reading magnetic information to and from the magnetic disks, guide arms and suspension structures. The suspension structures also include a coil, a magnetic circuit for imparting a drive force in cooperation with the coil, a coil holder for supporting the coil, a pivot sleeve for rocking the guide arms, the coil holder and spacers which are integrally laminated to each other, bearings and a pivot shaft. The PCMCIA connector connects to the control package and is fixed by the housing and a package cover.

摘要翻译： 磁盘装置具有体积小，结构薄的大容量，包括主轴系统，致动器系统，用于控制系统的控制组件和PCMCIA连接器。 主轴系统是内嵌式结构，其中两个磁盘在磁盘的内径部分中旋转。 致动器系统具有安装用于向磁盘，引导臂和悬架结构写入和读取磁信息的磁头的滑块。 悬架结构还包括线圈，用于与线圈相配合的驱动力的磁路，用于支撑线圈的线圈架，用于摆动引导臂的枢轴套筒，线圈夹持器和间隔件，它们被整体层合到每个 其他轴承和枢轴。 PCMCIA连接器连接到控制包，并由外壳和包装盖固定。

公开(公告)号：US5267111A

公开(公告)日：1993-11-30

申请号：US790680

申请日：1991-11-08

申请人： Yuji Nishimura ,  Tsuyoshi Takahashi ,  Masahiko Sega ,  Jyousei Shimizu ,  Tomio Suzuki

发明人： Yuji Nishimura ,  Tsuyoshi Takahashi ,  Masahiko Sega ,  Jyousei Shimizu ,  Tomio Suzuki

IPC分类号： H02K33/18 ,  G11B5/55 ,  G11B21/22

CPC分类号： G11B5/5521

摘要： In a voice coil motor having a voice coil, and a magnetic circuit which generates a magnetic flux traversing the voice coil; the magnetic circuit includes a yoke which is divided so as to form a plurality of magnetic paths traversing the voice coil and which is provided with hollows, and adjustment members which are inserted into the hollows so as to adjust the magnetic fluxes of the magnetic paths independently of one another.

摘要翻译： 在具有音圈的音圈电机和产生穿过音圈的磁通的磁路中; 磁路包括被分割成形成穿过音圈的多个磁路并设置有中空部的磁轭和插入到中空部中的调整部件，以便独立地调节磁路的磁通量 彼此之间

公开(公告)号：US06982852B2

公开(公告)日：2006-01-03

申请号：US10372833

申请日：2003-02-26

申请人： Shin Nagahiro ,  Masahiko Sega ,  Toshihiro Arisaka ,  Toshihiko Shimizu ,  Hiromitsu Masuda ,  Tetsuya Hamaguchi ,  Gentaro Nakamura ,  Takenori Atumi

发明人： Shin Nagahiro ,  Masahiko Sega ,  Toshihiro Arisaka ,  Toshihiko Shimizu ,  Hiromitsu Masuda ,  Tetsuya Hamaguchi ,  Gentaro Nakamura ,  Takenori Atumi

IPC分类号： G11B5/55

CPC分类号： G11B5/4833 ,  G11B5/5582

摘要： A magnetic disk drive having a high recording density and enabling high speed transfer is achieved by reducing vibration of a carriage arm assembly to reduce a positioning error. The disk drive is configured so that a carriage arm is configured by two arm portions, the arm portions being coupled to each other by a restraint member through a viscoelastic material, the restraint member being supported on a carriage body or an area of the carriage arm in the vicinity of the body by means of adhesion or a viscoelastic material. By providing a high damping effect against various vibration modes in which in-plane bending and out-plane bending of the carriage arm are generated, vibration of the carriage arm assembly is suppressed, so that the positioning error is reduced, thereby the magnetic disk drive having a high recording density can be achieved.

公开(公告)号：US5416658A

公开(公告)日：1995-05-16

申请号：US67106

申请日：1993-05-26

申请人： Masahiko Sega ,  Jiro Kaneko ,  Tsuyoshi Takahashi

发明人： Masahiko Sega ,  Jiro Kaneko ,  Tsuyoshi Takahashi

IPC分类号： G11B5/55 ,  G11B33/08

CPC分类号： G11B5/5521 ,  G11B33/08

摘要： Degradation of a detector-head positioning in an information storage device using a rotary recording medium may be prevented. A reaction force which gives a vibration to a positioning mechanism in a magnetic disk drive generally occurs when the detector heads seek a destination track on a rotary recording medium. This vibration or impact may be decreased or eliminated if an actuator magnet is supported on a linear-slider member or a rotary-slider member. Sliding motion is received with a pneumatic spring to softly result in no vibration being transmitted to the spindle or other positioning mechanism. The pneumatic spring can drastically reduce a proper vibration frequency of the positioning mechanism (magnetic-circuit support) to such an extent that an electrical servo system can catch the vibration frequency and can hold down a location error. Even if a reaction force is too big to prevent resonance from being caused, the pneumatic spring can quickly attenuate the reaction force using its own throttle hole. In case the magnetic disk drive is fixed on an incline or a slant, another spring between a magnetic circuit and a housing can regulate a positional relationship relative to peripheral members including the actuator.

摘要翻译： 可以防止使用旋转记录介质在信息存储装置中检测器头定位的劣化。 当检测器头在旋转记录介质上寻找目的地轨道时，通常会发生对磁盘驱动器中的定位机构产生振动的反作用力。 如果致动器磁体被支撑在直线滑动构件或旋转滑块构件上，则可以减小或消除这种振动或冲击。 滑动运动用气动弹簧接收，以轻柔地导致没有振动传递到主轴或其他定位机构。 气动弹簧可以大大降低定位机构（磁路支撑）的适当振动频率，使得电动伺服系统能够捕捉振动频率并且可以抑制位置误差。 即使反作用力太大而不能产生共振，气动弹簧也可以使用其自身的节流孔来快速衰减反作用力。 在磁盘驱动器固定在倾斜或倾斜的情况下，磁路和壳体之间的另一个弹簧可以调节与包括致动器的周边构件的位置关系。