公开(公告)号：US07095591B2

公开(公告)日：2006-08-22

申请号：US10643267

申请日：2003-08-19

申请人： Takahiro Imamura ,  Yukihiro Uematsu ,  Hitoshi Kanai ,  Shinji Koganezawa ,  Ryosuke Koishi ,  Takeaki Shimanouchi

发明人： Takahiro Imamura ,  Yukihiro Uematsu ,  Hitoshi Kanai ,  Shinji Koganezawa ,  Ryosuke Koishi ,  Takeaki Shimanouchi

IPC分类号： G11B5/60

CPC分类号： G11B5/5552 ,  G11B5/6082

摘要： A pair of slits are defined in a slider body of a head slider so as to extend from a trailing end surface to the leading end on the slider body. A movable block is established in the slider body between the slits. The slits ensure the extent of movement for the movable block. Elongated plates enable a relative displacement between the movable block and a stationary block. A head element is mounted on a trailing end surface of the movable block. The thickness of a non-magnetic layer corresponds to the gap length of the head element. The gap length of the head element can easily be controlled based on deposition of the non-magnetic layer. The thickness of the non-magnetic layer can be reduced in a relatively facilitated manner, so that the gap length of the head element can easily be minimized.

摘要翻译： 一个狭缝被限定在头部滑动件的滑块体中，以便从滑动件主体的后端表面延伸到前端。 在滑块体之间在狭缝之间建立可动块。 狭缝确保可移动块的移动程度。 细长的板使得可移动块和固定块之间的相对位移。 头元件安装在可移动块的后端表面上。 非磁性层的厚度对应于头元件的间隙长度。 基于非磁性层的沉积可以容易地控制头元件的间隙长度。 可以以相对便利的方式减小非磁性层的厚度，使得头元件的间隙长度可以容易地最小化。

公开(公告)号：US06327120B1

公开(公告)日：2001-12-04

申请号：US09057174

申请日：1998-04-08

申请人： Shinji Koganezawa ,  Toru Kohei ,  Tomoyoshi Yamada ,  Yukihiro Uematsu ,  Tadayoshi Noguchi ,  Hisashi Nakano ,  Ryuma Sakamoto ,  Junichi Inoue ,  Tetsuya Suzuki

发明人： Shinji Koganezawa ,  Toru Kohei ,  Tomoyoshi Yamada ,  Yukihiro Uematsu ,  Tadayoshi Noguchi ,  Hisashi Nakano ,  Ryuma Sakamoto ,  Junichi Inoue ,  Tetsuya Suzuki

IPC分类号： G11B2110

CPC分类号： G11B21/106 ,  G11B5/5552 ,  H01L41/0993

摘要： An actuator having a simple configuration requiring no high dimensional accuracy, high in positioning accuracy and low in cost, and a head-positioning mechanism using the actuator are disclosed. An actuator according to a first application comprises a shear-type piezoelectric element of predetermined thickness and an opposed electrode formed on two electrodes in spaced relationship on a base member. The opposed electrode is displaced in accordance with the direction of polarization of the shear-type piezoelectric element upon applying a voltage between the two electrodes. The opposed electrode thus constitutes an operating section of the actuator. An actuator according to a second application comprises a movable member arranged on a drive member including a shear-type piezoelectric element on a base member. The drive member includes a plurality of layers of piezoelectric elements polarized in alternately opposite directions perpendicular to the thickness of the devices. A plurality of conductive layers are formed adjacently to the respective layers of the devices to permit voltage application thereto. The movable member can be driven in parallel to the base member upon application of a voltage between the conductive layers. Any one of these actuators can be incorporated as a part of the head actuator to constitute a head-positioning mechanism capable of displacing the head by a minuscule distance independently of the operation of the head actuator.

公开(公告)号：US06538854B2

公开(公告)日：2003-03-25

申请号：US09872037

申请日：2001-06-01

申请人： Shinji Koganezawa ,  Tomoyoshi Yamada ,  Yukihiro Uematsu ,  Tadayoshi Noguchi ,  Hisashi Nakano ,  Ryuma Sakamoto ,  Junichi Inoue ,  Tetsuya Suzuki

发明人： Shinji Koganezawa ,  Tomoyoshi Yamada ,  Yukihiro Uematsu ,  Tadayoshi Noguchi ,  Hisashi Nakano ,  Ryuma Sakamoto ,  Junichi Inoue ,  Tetsuya Suzuki

IPC分类号： G11B2110

CPC分类号： G11B21/106 ,  G11B5/5552 ,  H01L41/0993

摘要： An actuator includes a shear-type piezoelectric element of predetermined thickness and an opposed electrode formed on two electrodes in spaced relationship on a base member. The opposed electrode is displaced in accordance with the direction of polarization of the shear-type piezoelectric element upon applying a voltage between the two electrodes. The opposed electrode thus constitutes an operating section of the actuator. The actuator can be incorporated as a part of the head actuator to constitute a head-positioning mechanism capable of displacing the head by a minuscule distance independently of the operation of the head actuator.

摘要翻译： 致动器包括具有预定厚度的剪切型压电元件和在两个电极上形成的相对电极，在基底构件上间隔开。 相对的电极在施加两个电极之间的电压时根据剪切型压电元件的偏振方向移位。 因此，相对的电极构成致动器的操作部分。 致动器可以作为头部致动器的一部分并入，以构成头部定位机构，该头部定位机构能够独立于头部致动器的操作而使头部移动微小的距离。

公开(公告)号：US20090288491A1

公开(公告)日：2009-11-26

申请号：US12364193

申请日：2009-02-02

申请人： Yoshitaka Suzuki ,  Takahiro Imamura ,  Shinji Koganezawa

发明人： Yoshitaka Suzuki ,  Takahiro Imamura ,  Shinji Koganezawa

IPC分类号： G01L11/04 ,  G11B33/14

CPC分类号： G01L9/008 ,  G01L11/04 ,  G11B33/1486

摘要： A receiver receives an acoustic wave in an atmospheric pressure measuring apparatus. Since a variation in the intensity of an acoustic wave reflects a variation in the atmospheric pressure, the atmospheric pressure can be measured based on the intensity of the acoustic wave received at the receiver. The atmospheric pressure can in this manner easily be measured with a simplified structure.

摘要翻译： 接收机在大气压测量装置中接收声波。 由于声波的强度的变化反映了大气压力的变化，所以可以基于在接收器处接收到的声波的强度来测量大气压力。 以这种方式可以容易地用简化的结构测量大气压力。

公开(公告)号：US06724560B2

公开(公告)日：2004-04-20

申请号：US09738163

申请日：2000-12-15

申请人： Shinji Koganezawa ,  Takahiro Imamura

发明人： Shinji Koganezawa ,  Takahiro Imamura

IPC分类号： G11B5596

CPC分类号： G11B5/5556 ,  G11B5/5552 ,  H05K1/023

摘要： A head suspension supporting a head at the tip end is allowed to swing at the tip end of a carriage in a recording disk drive. A microactuator is interposed between the head suspension and the carriage. A resistor is connected to the microactuator in serial. The microactuator is allowed to function as a capacitance. A combination of the microactuator and the resistor enables establishment of a so-called low pass filter. A high frequency noise involuntarily introduced in the driving voltage for the microactuator can be eliminated or removed from the driving voltage. Elimination of the high frequency noise enables a reliable prevention of the mechanical or physical resonance or vibration in the head suspension. A tracking action of the head related to a target recording track can reliably be stabilized.

摘要翻译： 允许在尖端处支撑头部的头悬架在记录盘驱动器中的托架的尖端处摆动。 微型致动器插入在头部悬架和托架之间。 电阻串联连接到微致动器。 允许微致动器用作电容。 微致动器和电阻器的组合使得能够建立所谓的低通滤波器。 可以从驱动电压中消除或去除微致动器的驱动电压中不自主地引入的高频噪声。 消除高频噪声使得可以可靠地防止头部悬架中的机械或物理共振或振动。 可以可靠地稳定与目标记录轨道相关的头部的跟踪动作。

公开(公告)号：US08006562B2

公开(公告)日：2011-08-30

申请号：US12364193

申请日：2009-02-02

申请人： Yoshitaka Suzuki ,  Takahiro Imamura ,  Shinji Koganezawa

发明人： Yoshitaka Suzuki ,  Takahiro Imamura ,  Shinji Koganezawa

IPC分类号： G01L11/00

CPC分类号： G01L9/008 ,  G01L11/04 ,  G11B33/1486

摘要： A receiver receives an acoustic wave in an atmospheric pressure measuring apparatus. Since a variation in the intensity of an acoustic wave reflects a variation in the atmospheric pressure, the atmospheric pressure can be measured based on the intensity of the acoustic wave received at the receiver. The atmospheric pressure can in this manner easily be measured with a simplified structure.

摘要翻译： 接收机在大气压测量装置中接收声波。 由于声波的强度的变化反映了大气压力的变化，所以可以基于在接收器处接收到的声波的强度来测量大气压力。 以这种方式可以容易地用简化的结构测量大气压力。

公开(公告)号：US20090284870A1

公开(公告)日：2009-11-19

申请号：US12359746

申请日：2009-01-26

申请人： Yusuke Nojima ,  Shinji Koganezawa

发明人： Yusuke Nojima ,  Shinji Koganezawa

IPC分类号： G11B5/48

CPC分类号： G11B5/4853

摘要： An arm has one end coupled to a head suspension and the other end defining a domed surface in a head suspension assembly. The domed surface establishes point contact against the side surface of a head slider. The arm is designed to restrain the direction of application of a force along an imaginary plane including the back surface of the head slider. A piezoelectric element is bonded to the arm at a position between the one end and the other end of the arm. The head suspension assembly allows the arm to curve in response to expansion/shrinkage of the piezoelectric element. A driving force is applied from the arm to the head slider based on the curvature of the arm. Since point contact is established between the arm and the side surface of the head slider, the curvature of the arm cannot be restrained.

摘要翻译： 臂的一端联接到头部悬挂，另一端在头部悬挂组件中限定圆顶表面。 圆顶表面与头部滑块的侧面建立点接触。 臂被设计成限制沿着包括头部滑块的后表面的假想平面施加力的方向。 压电元件在臂的一端和另一端之间的位置处结合到臂上。 头悬挂组件允许臂响应于压电元件的膨胀/收缩而弯曲。 基于臂的曲率，从臂向头滑块施加驱动力。 由于在头部滑块的臂和侧表面之间建立点接触，所以不能抑制臂的曲率。

公开(公告)号：US07215068B2

公开(公告)日：2007-05-08

申请号：US10929995

申请日：2004-08-30

申请人： Shinji Koganezawa ,  Hideki Kashima

发明人： Shinji Koganezawa ,  Hideki Kashima

IPC分类号： H01L41/047

CPC分类号： G11B5/5552 ,  G11B5/4826 ,  G11B5/4853 ,  H01L41/0475 ,  H01L41/0993

摘要： A piezoelectric element of a piezoelectric actuator is clamped by two electrodes, each of which has a conductive layer on a insulating layer. At least a connection terminal is formed by extending the conductive layer outside the insulating layer.

摘要翻译： 压电致动器的压电元件由两个电极夹持，每个电极在绝缘层上具有导电层。 至少一个连接端子是通过将导电层延伸到绝缘层之外而形成的。

公开(公告)号：US06741012B2

公开(公告)日：2004-05-25

申请号：US10025018

申请日：2001-12-19

申请人： Shinji Koganezawa ,  Kenichi Makino ,  Shuichi Heya ,  Shinji Hiraoka

发明人： Shinji Koganezawa ,  Kenichi Makino ,  Shuichi Heya ,  Shinji Hiraoka

IPC分类号： H01L4108

CPC分类号： G11B5/5521 ,  G11B5/4813 ,  H01L41/0475 ,  H01L41/0993

摘要： The small and light piezoelectric actuator of the present invention is capable of highly precisely positioning a magnetic head assemblies, etc. The piezoelectric actuator comprises: a movable member to which a head suspension is fixed; a fixed member fixed to a carriage arm; piezoelectric elements provided between the movable member and the fixed member and capable of adjusting a position of the head suspension by their deformation; and an electrode member electrically connected to one of electrodes of each of the piezoelectric elements. The movable member is adhered on the piezoelectric elements and electrically insulated from the other electrodes of the piezoelectric elements. The electric conductive layer of the electrode member and the other electrode of each of the piezoelectric elements are electrically connected to cables, which are provided to the head suspension so as to actuate the piezoelectric elements.

摘要翻译： 本发明的小而轻的压电致动器能够精确地定位磁头组件等。压电致动器包括：固定有磁头悬架的可动构件，固定到滑架臂的固定构件，设置在滑架臂之间的压电元件 可移动构件和固定构件，并且能够通过其变形来调节头部悬置的位置，以及电连接到每个压电元件的电极的电极构件。 可动构件粘附在压电元件上并与压电元件的另一个电极电绝缘。 电极构件的导电层和每个压电元件的另一个电极电连接到电缆，电缆被设置到磁头悬架上以驱动压电元件。

公开(公告)号：US06671120B2

公开(公告)日：2003-12-30

申请号：US09426092

申请日：1999-10-22

申请人： Shinji Koganezawa ,  Tomoyoshi Yamada

发明人： Shinji Koganezawa ,  Tomoyoshi Yamada

IPC分类号： G11B5596

CPC分类号： G11B5/5521

摘要： A head carriage assembly drive system has a head carriage assembly having a head, a head carriage for moving the head in a radial direction of a rotating disk, a first drive unit for generating the power to rotate the head carriage and a second drive unit having a torque constant smaller than the torque constant of the first drive unit. Mainly the first drive unit is operated in a low-frequency band and mainly the second drive unit is operated in a high-frequency band, thereby reducing overall power consumption during tracking.

摘要翻译： 头托架组件驱动系统具有头托架组件，其具有头部，用于沿旋转盘的径向移动头部的头托架，用于产生旋转头托架的动力的第一驱动单元和具有旋转头托架的动力的第一驱动单元， 小于第一驱动单元的转矩常数的转矩常数。 主要是第一驱动单元在低频带中操作，主要是第二驱动单元在高频带中操作，从而降低跟踪期间的总体功耗。