公开(公告)号：US06856070B2

公开(公告)日：2005-02-15

申请号：US10632638

申请日：2003-08-01

申请人： Zhihong Wang ,  Tamon Kasajima ,  Masashi Shiraishi ,  Ping Shang ,  Kai Wu

发明人： Zhihong Wang ,  Tamon Kasajima ,  Masashi Shiraishi ,  Ping Shang ,  Kai Wu

IPC分类号： G11B5/55 ,  G11B21/10 ,  G11B21/20 ,  H01L41/04 ,  H01L41/09 ,  H02N2/00 ,  H02N2/10

CPC分类号： G11B5/5552 ,  G11B21/106 ,  G11B21/20 ,  H01L41/096 ,  H02N2/10

摘要： A piezoelectric actuator is disclosed including an annular piezoelectric element and a base. There is a gap along the radial direction of the annular piezoelectric element. One of the two ends, i.e., the fixed end of the said annular element, is connected to the base, while the other end is free. The base is made of piezoelectric materials. Furthermore, the annular element is divided into two or more annular parts along the direction of its circumference by the electrode patterns applied on its two opposite surface and/or its polarization directions. When driving voltages are applied, the actuator can generate roughly a rotary motion around the center of the annular piezoelectric element. The annular rotary actuator could be either a single plate or with multilayer structure. The present invention further relates to a dual stage head positioning actuator system of a hard disk drive with a plurality of disks and a plurality of vertically aligned head sliders mounted on distal ends of a plurality of suspensions via the annular piezoelectric actuators.

摘要翻译： 公开了一种压电致动器，其包括环形压电元件和基座。 沿着环形压电元件的径向存在间隙。 两个端部中的一个，即所述环形元件的固定端连接到基座，而另一端是自由的。 基座由压电材料制成。 此外，通过施加在其两个相对表面和/或其偏振方向上的电极图案，环形元件沿其圆周方向被分成两个或更多个环形部分。 当施加驱动电压时，致动器可围绕环形压电元件的中心大致产生旋转运动。 环形旋转致动器可以是单板或具有多层结构。 本发明还涉及具有多个盘的硬盘驱动器的双级头定位致动器系统和经由环形压电致动器安装在多个悬架的远端上的多个垂直对准的头滑块。

公开(公告)号：US06653763B2

公开(公告)日：2003-11-25

申请号：US09811112

申请日：2001-03-16

申请人： Zhihong Wang ,  Tamon Kasajima ,  Masashi Shiraishi ,  Ping Shang ,  Kai Wu

发明人： Zhihong Wang ,  Tamon Kasajima ,  Masashi Shiraishi ,  Ping Shang ,  Kai Wu

IPC分类号： H01L4108

CPC分类号： G11B5/5552 ,  G11B21/106 ,  G11B21/20 ,  H01L41/096 ,  H02N2/10

摘要： A piezoelectric actuator is disclosed including an annular piezoelectric element and a base. There is a gap along the radial direction of the annular piezoelectric element. One of the two ends, i.e., the fixed end of the said annular element, is connected to the base, while the other end is free. The base is made of piezoelectric materials. Furthermore, the annular element is divided into two or more annular parts along the direction of its circumference by the electrode patterns applied on its two opposite surface and/or its polarization directions. When driving voltages are applied, the actuator can generate roughly a rotary motion around the center of the annular piezoelectric element. The annular rotary actuator could be either a single plate or with multilayer structure. The present invention further relates to a dual stage head positioning actuator system of a hard disk drive with a plurality of disks and a plurality of vertically aligned head sliders mounted on distal ends of a plurality of suspensions via the annular piezoelectric actuators.

摘要翻译： 公开了一种压电致动器，其包括环形压电元件和基座。 沿着环形压电元件的径向存在间隙。 两个端部中的一个，即所述环形元件的固定端连接到基座，而另一端是自由的。 基座由压电材料制成。 此外，通过施加在其两个相对表面和/或其偏振方向上的电极图案，环形元件沿其圆周方向被分成两个或更多个环形部分。 当施加驱动电压时，致动器可围绕环形压电元件的中心大致产生旋转运动。 环形旋转致动器可以是单板或具有多层结构。 本发明还涉及具有多个盘的硬盘驱动器的双级头定位致动器系统和经由环形压电致动器安装在多个悬架的远端上的多个垂直对准的头滑块。

公开(公告)号：US07440216B2

公开(公告)日：2008-10-21

申请号：US10455507

申请日：2003-06-04

申请人： Kai Wu ,  Tamon Kasajima ,  Masashi Shiraishi ,  Ping Shang

发明人： Kai Wu ,  Tamon Kasajima ,  Masashi Shiraishi ,  Ping Shang

IPC分类号： G11B21/02 ,  G11B5/58 ,  G11B21/24

CPC分类号： G11B5/5552

摘要： The invention relates to a microactuator comprising a movable structure having a symmetric axis about which the movable structure are divided into two parts which can produce the same movement but in opposite directions; two active arms built with piezoelectric material; two stationary structures to connect the two active arms at their two ends, respectively. The invention also relates to a disk drive suspension which is incorporated with the microactuator.

摘要翻译： 本发明涉及一种微致动器，其包括具有对称轴的可移动结构，所述可移动结构围绕所述可移动结构分成两部分，所述两部分可以产生相同的运动但是在相反的方向上; 两个用压电材料制成的主动臂; 两个固定结构分别在两端连接两个活动臂。 本发明还涉及一种与微型致动器并入的磁盘驱动器悬架。

公开(公告)号：US06633458B2

公开(公告)日：2003-10-14

申请号：US09811113

申请日：2001-03-16

申请人： Kai Wu ,  Tamon Kasajima ,  Masashi Shiraishi ,  Ping Shang

发明人： Kai Wu ,  Tamon Kasajima ,  Masashi Shiraishi ,  Ping Shang

IPC分类号： G11B2124

CPC分类号： G11B5/5552

摘要： The invention relates to a microactuator comprising a movable structure having a symmetric axis about which the movable structure are divided into two parts which can produce the same movement but in opposite directions; two active arms built with piezoelectric material; two stationary structures to connect the two active arms at their two ends, respectively. The invention also relates to a disk drive suspension which is incorporated with the microactuator.

摘要翻译： 本发明涉及一种微致动器，其包括具有对称轴的可移动结构，所述可移动结构围绕所述可移动结构分成两部分，所述两部分可以产生相同的运动但是在相反的方向上; 两个用压电材料制成的主动臂; 两个固定结构分别在两端连接两个活动臂。 本发明还涉及一种与微型致动器并入的磁盘驱动器悬架

公开(公告)号：US06680826B2

公开(公告)日：2004-01-20

申请号：US09810821

申请日：2001-03-16

申请人： Masashi Shiraishi ,  Tamon Kasajima ,  Kai Wu ,  Zhihong Wang ,  Weiguang Zhu ,  Xi Yao

发明人： Masashi Shiraishi ,  Tamon Kasajima ,  Kai Wu ,  Zhihong Wang ,  Weiguang Zhu ,  Xi Yao

IPC分类号： G11B2124

CPC分类号： H01L41/096 ,  G11B5/5552

摘要： A piezoelectric device comprises an integral body of piezoelectric material having a length and width greater than its thickness; wherein the device further includes, in contact with the body, respective pairs of electrodes, wherein the electrodes of each pair are opposed in the thickness direction, wherein the body deflects along said transverse direction when a voltage is applied to the electrode pair. The present invention further provisdes a disk drive suspension and a head gimbal assembly.

摘要翻译： 一种压电装置，包括具有大于其厚度的长度和宽度的压电材料的整体; 其中所述装置还包括与所述主体接触的各对电极，其中每对电极在厚度方向上相对，其中当电压施加到所述电极对时，所述主体沿着所述横向方向偏转。 本发明进一步限制了磁盘驱动器悬架和磁头万向架组件。

公开(公告)号：US06760194B2

公开(公告)日：2004-07-06

申请号：US10369889

申请日：2003-02-19

申请人： Masashi Shiraishi ,  Tamon Kasajima ,  Kai Wu ,  Zhihong Wang ,  Weiguang Zhu ,  Xi Yao

发明人： Masashi Shiraishi ,  Tamon Kasajima ,  Kai Wu ,  Zhihong Wang ,  Weiguang Zhu ,  Xi Yao

IPC分类号： G11B2116

CPC分类号： H01L41/096 ,  G11B5/5552

摘要： A piezoelectric device comprises an integral body of piezoelectric material having a length and width greater than its thickness; wherein the device further includes, in contact with the body, respective pairs of electrodes, wherein the electrodes of each pair are opposed in the thickness direction, wherein the body deflects along said transverse direction when a voltage is applied to the electrode pair. The present invention further provisdes a disk drive suspension and a head gimbal assembly.

公开(公告)号：US07016155B2

公开(公告)日：2006-03-21

申请号：US10842555

申请日：2004-05-11

申请人： Tamon Kasajima ,  Masashi Shiraishi

发明人： Tamon Kasajima ,  Masashi Shiraishi

IPC分类号： G11B5/60

CPC分类号： G11B33/08 ,  G11B5/4826

摘要： A vibration-canceling mechanism includes a vibration transfer member of a plane shape inserted between a vibration-origination system having at least one resonance frequency and an object to which a vibration is applied from the vibration-origination system. The vibration transfer member has a resonance frequency equal to or near the at least one resonance frequency of the vibration-origination system. A center of one end section of the vibration transfer member is coupled by a single arm section to a center of the other end section of the vibration transfer member. The one end section of the vibration transfer member is fixed to the vibration-origination system and the other end section of the vibration transfer member is fixed to the object so that an apparent vibration of the object is substantially canceled by a resonance of the vibration transfer member.

公开(公告)号：US06972929B2

公开(公告)日：2005-12-06

申请号：US10649740

申请日：2003-08-28

申请人： Tamon Kasajima ,  Masashi Shiraishi

发明人： Tamon Kasajima ,  Masashi Shiraishi

IPC分类号： G11B5/00 ,  G11B5/17 ,  G11B5/31

CPC分类号： G11B5/313 ,  G11B5/17 ,  G11B2005/0013

摘要： A thin-film magnetic head includes an insulation gap, a pair of yoke layers with one ends and the other ends, respectively, the one ends constituting magnetic poles separated with each other by the insulation gap, the other ends being magnetically coupled with each other, a coil conductor wound around at least one of the pair of yoke layers, first and second trace conductors with one ends electrically connected to both ends of the coil conductor, respectively, and first and second connection bumps electrically connected to the other ends of the first and second trace conductors, respectively. The first trace conductor includes a lower conductor layer and an upper conductor layer connected in parallel with each other, the second trace conductor including a lower conductor layer and an upper conductor layer connected in parallel with each other. The upper conductor layer of the first trace conductor and the lower conductor layer of the second trace conductor are arranged from top to bottom to face to each other. The upper conductor layer of the second trace conductor and the lower conductor layer of the first trace conductor are arranged from top to bottom to face to each other.

摘要翻译： 薄膜磁头包括绝缘间隙，分别具有一端和另一端的一对磁轭层，构成磁极的一端通过绝缘间隙彼此分离，另一端彼此磁耦合 缠绕在所述一对磁轭层中的至少一个磁轭层上的线圈导体，分别与所述线圈导体的两端电连接的一端的第一和第二轨迹导体，以及与所述线圈导体的另一端电连接的第一和第二连接凸块 第一和第二迹线导体。 第一迹线导体包括彼此并联连接的下导体层和上导体层，第二迹线导体包括彼此并联连接的下导体层和上导体层。 第一迹线导体的上导体层和第二导线导体的下导体层从上到下布置成彼此面对。 第二迹线导体的上导体层和第一迹线导体的下导体层从上到下布置成彼此面对。

公开(公告)号：US07099115B2

公开(公告)日：2006-08-29

申请号：US10235586

申请日：2002-09-06

申请人： Ming Gao Yao ,  Masashi Shiraishi ,  Tamon Kasajima

发明人： Ming Gao Yao ,  Masashi Shiraishi ,  Tamon Kasajima

IPC分类号： G11B5/596 ,  G11B21/24

CPC分类号： G11B5/4853 ,  G11B5/486

摘要： An HGA includes a head slider with at least one head element, a precise positioning actuator fixed to the head slider for precisely positioning the at least one head element, and a support for supporting the actuator. The actuator has a pair of movable arms capable of displacing in response to a drive signal applied to the actuator. The head slider is mounted between the pair of movable arms. The head slider and the actuator are adhered by at least one adhesive film.

公开(公告)号：US07079356B2

公开(公告)日：2006-07-18

申请号：US10633566

申请日：2003-08-05

申请人： Tamon Kasajima ,  Masashi Shiraishi

发明人： Tamon Kasajima ,  Masashi Shiraishi

IPC分类号： G11B5/48

CPC分类号： G11B5/4833

摘要： An HAA includes a head slider having at least one head element, a high-stiffness arm member for supporting the head slider at one end section, an actuator, mounted to the other end section of the arm member, for rotationally moving the arm member in a direction substantially parallel with a recording medium surface around a horizontal rotation axis of the arm member, and a resilient plate spring for generating a load, the plate spring having one end section fixed to the arm member and the other end section provided with a load point for energizing the head slider in a direction to the recording medium surface.

摘要翻译： HAA包括具有至少一个头部元件的头部滑动器，用于在一个端部处支撑头部滑块的高刚度臂构件，安装到臂构件的另一端部的致动器，用于将臂构件旋转移动 与臂构件的水平旋转轴线周围的记录介质表面基本平行的方向，以及用于产生负载的弹性板簧，所述板簧具有一个端部固定到臂构件，另一端部设有负载 用于在朝向记录介质表面的方向上激励磁头滑块。