Piezoelectric actuator
    1.
    发明授权
    Piezoelectric actuator 失效
    压电执行器

    公开(公告)号:US06201339B1

    公开(公告)日:2001-03-13

    申请号:US09050792

    申请日:1998-03-30

    IPC分类号: H01L4108

    摘要: A piezoelectric actuator has a vibrating member having a generally central portion and a vibratable cantilever extending from the central portion. The cantilever has a first major surface, a second major surface opposite the first major surface, a first end integrally connected to the central portion, and a second free end. A piezoelectric element is connected to the second major surface of the cantilever and is driven by a voltage signal applied thereto to undergo expansion and contraction to vibrationally drive the cantilever. A moving member is in contact with the first major surface of the cantilever to be frictionally driven by vibration of the cantilevers in response to expansion and contraction of the piezoelectric element.

    摘要翻译: 压电致动器具有振动构件,该振动构件具有从中心部分延伸的大致中心部分和可振动悬臂。 悬臂具有第一主表面,与第一主表面相对的第二主表面,与中心部分一体连接的第一端和第二自由端。 压电元件连接到悬臂的第二主表面,并被施加到其上的电压信号驱动以进行膨胀和收缩以振动地驱动悬臂。 移动构件与悬臂的第一主表面接触,以响应于压电元件的膨胀和收缩而被悬臂的振动摩擦驱动。

    Fine drive and positioning units and memory apparatus
    2.
    发明授权
    Fine drive and positioning units and memory apparatus 失效
    精细的驱动和定位单元和存储设备

    公开(公告)号:US06362938B1

    公开(公告)日:2002-03-26

    申请号:US09404937

    申请日:1999-09-23

    IPC分类号: G11B2124

    CPC分类号: G11B21/106 G11B5/5552

    摘要: A fine drive unit comprises a suspension arm having a head portion and a support member supporting the suspension arm for undergoing pivotal movement. The support member has a coupling portion connected to the suspension arm, a spring portion connected to the coupling portion, at least one pair of bi-directional cantilevers, and piezoelectric members each disposed on a respective one of the cantilevers. When a voltage having a preselected frequency is applied to the piezoelectric members, the cantilevers are vibrated to cause the cantilevers to contact the suspension arm and thereby finely drive the head portion.

    摘要翻译: 精细驱动单元包括具有头部的悬架臂和支撑悬架臂以支撑枢转运动的支撑构件。 支撑构件具有连接到悬架臂的联接部分,连接到联接部分的弹簧部分,至少一对双向悬臂和各自设置在悬臂的相应一个上的压电部件。 当将具有预选频率的电压施加到压电元件时,悬臂被振动以使悬臂与悬臂接触,从而精细地驱动头部。

    Piezoelectric actuator, piezoelectric actuator driving method and computer readable storage medium stored with program for making computer execute piezoelectric actuator driving method
    3.
    发明授权
    Piezoelectric actuator, piezoelectric actuator driving method and computer readable storage medium stored with program for making computer execute piezoelectric actuator driving method 有权
    压电致动器,压电致动器驱动方法和存储有用于使计算机执行压电致动器驱动方法的程序的计算机可读存储介质

    公开(公告)号:US06323578B1

    公开(公告)日:2001-11-27

    申请号:US09478239

    申请日:2000-01-04

    IPC分类号: H01L4108

    摘要: A piezoelectric actuator has a rotational moving member and a supporting member disposed opposite to the rotational moving member and having cantilever portions. Each of the cantilever portions of the supporting member has a fixed end and a free end opposite to the fixed end for contacting the rotational moving member when the supporting member is oscillated. A piezoelectric member is disposed on a respective one of the cantilevers of the supporting member. A power source supplies a voltage to each of the piezoelectric members to oscillate the supporting member in a vibration mode higher than a secondary mode of vibration so that the free ends of the cantilevers make sufficient contact with the rotational moving member to thereby rotate the rotational moving member.

    摘要翻译: 压电致动器具有旋转移动构件和与旋转移动构件相对设置并具有悬臂部分的支撑构件。 支撑构件的每个悬臂部分具有固定端和与固定端相对的自由端,用于当支撑构件摆动时与旋转运动构件接触。 压电构件设置在支撑构件的悬臂的相应一个上。 电源向每个压电元件提供电压,以使振动模式高于二次振动模式振荡支撑构件,使得悬臂的自由端与旋转移动构件充分接触,从而使旋转移动 会员。

    Method of correcting a resonance frequency of a small rotary actuator
    4.
    发明授权
    Method of correcting a resonance frequency of a small rotary actuator 失效
    校正小型旋转致动器的共振频率的方法

    公开(公告)号:US06307299B1

    公开(公告)日:2001-10-23

    申请号:US09201181

    申请日:1998-11-30

    IPC分类号: H01L4108

    摘要: In a small rotary actuator having a rotor and a plurality of oscillators, each having a piezoelectric element that is excited by application of energy thereto so that the piezoelectric element oscillates at a resonance frequency thereof, the resonance frequency of the respective oscillators varies to some degree. This variation reduces the efficiency of rotation of the rotor. In order to reduce this variation, one or more of the piezoelectric elements of the oscillators is etched so that its resonance frequency is increased to match the resonance frequency of the other oscillators.

    摘要翻译: 在具有转子和多个振荡器的小型旋转致动器中,每个都具有通过施加能量而被激发的压电元件,使得压电元件以其谐振频率振荡,各个振荡器的谐振频率在一定程度上变化 。 这种变化降低了转子的旋转效率。 为了减小这种变化,振荡器的一个或多个压电元件被蚀刻,使得其谐振频率增加以匹配其它振荡器的谐振频率。

    Thermally-assisted magnetic recording head having photoelectric wiring lines integrally formed on waveguide
    5.
    发明授权
    Thermally-assisted magnetic recording head having photoelectric wiring lines integrally formed on waveguide 有权
    具有一体形成在波导上的光电布线的热辅助磁记录头

    公开(公告)号:US08467276B2

    公开(公告)日:2013-06-18

    申请号:US12736993

    申请日:2009-05-19

    IPC分类号: G11B11/00

    摘要: An information recording and reproduction apparatus has a magnetic recording medium, a light source that outputs a light beam to heat the medium, and a near-field light head confronting a surface of the medium. An optical waveguide introduces a light beam from the light source into the near-field light head to generate near-field light. A control section supplies a current to a recording element of the near-field light head for generating a recording magnetic field in a direction of the medium. A photoelectric composite wiring line has the optical waveguide and at least one electric wiring line integral with the optical waveguide and electrically connecting the near-field light head to the control section. The optical waveguide and the electric wiring line branch off from a distal side of the photoelectric composite wiring line so as to connect to the near-field light head.

    摘要翻译: 信息记录和再现装置具有磁记录介质,输出光束以加热介质的光源和面对介质表面的近场光头。 光波导将来自光源的光束引入近场光头以产生近场光。 控制部分向近场光头的记录元件提供电流,用于在介质的方向上产生记录磁场。 光电复合布线具有光波导和与光波导成一体的至少一个电布线,并将近场光头与控制部电连接。 光波导和电布线从光电复合布线的远侧分支,以便连接到近场光头。

    Head gimbal assembly
    6.
    发明授权
    Head gimbal assembly 有权
    头万向节装配

    公开(公告)号:US08411391B2

    公开(公告)日:2013-04-02

    申请号:US12586796

    申请日:2009-09-28

    IPC分类号: G11B21/16

    摘要: A head gimbal assembly comprises a slider having reproduction/reproducing elements for reproducing and recording information to/from a surface of a recording medium. A suspension flexibly supports the slider opposite to a surface of a recording medium. A light source is disposed on the suspension for emitting a light beam. An optical waveguide is disposed between the slider and the laser light source for introducing a light beam from the light source into the slider.

    摘要翻译: 头万向架组件包括具有用于再现和记录信息到记录介质的表面的再现/再现元件的滑块。 悬架柔性地支撑滑块与记录介质的表面相对。 光源设置在用于发射光束的悬架上。 光滑波导设置在滑块和激光光源之间,用于将来自光源的光束引入滑块。

    Blood viscosity measurement device
    7.
    发明授权
    Blood viscosity measurement device 有权
    血液粘度测量装置

    公开(公告)号:US07833160B2

    公开(公告)日:2010-11-16

    申请号:US11341757

    申请日:2006-01-27

    IPC分类号: A61B8/00 A61B5/00

    CPC分类号: A61B8/06

    摘要: A blood viscosity measurement device has a flow rate calculating section that calculates a flow rate of blood flowing through a blood vessel of a living body. An inner diameter calculating section calculates an inner diameter of the blood vessel. A blood pressure data acquiring device acquires blood pressure data corresponding to a blood pressure of the blood vessel. A viscosity calculating section calculates a viscosity of the blood flowing through the blood vessel using each of the calculated flow rate, the calculated inner diameter, and the acquired blood pressure data.

    摘要翻译: 血液粘度测定装置具有计算流过生物体的血管的血液的流量的流量计算部。 内径计算部计算血管的内径。 血压数据获取装置获取与血管的血压对应的血压数据。 粘度计算部使用计算出的流量,计算出的内径和获取的血压数据,计算流过血管的血液的粘度。

    INFORMATION RECORDING AND REPRODUCTION APPARATUS
    8.
    发明申请
    INFORMATION RECORDING AND REPRODUCTION APPARATUS 有权
    信息记录和再现设备

    公开(公告)号:US20110122738A1

    公开(公告)日:2011-05-26

    申请号:US12736992

    申请日:2009-05-19

    IPC分类号: G11B13/08

    摘要: The present invention relates to an information recording and reproduction apparatus which records the information on a disk by heating the disk with near-field light and causing magnetization reversal by applying a recording magnetic field to the disk. An optical waveguide 32, which introduces light beam emitted from a laser light source into a slider, and a plurality of electric wiring lines 31, which electrically connects the slider and a control unit to each other, are provided. A photoelectric composite wiring line 33 is provided in which the optical waveguide 32 and the plurality of electric wiring line 31 are integrally formed.

    摘要翻译: 本发明涉及一种信息记录和再现装置,其通过用近场光加热盘并通过向盘施加记录磁场而使磁化反转来将信息记录在盘上。 提供了将从激光光源发射的光束引入滑块的光波导32和将滑块和控制单元彼此电连接的多个电线31。 提供光波导复合布线33,其中光波导32和多个电布线31一体形成。

    Head gimbal assembly
    9.
    发明申请
    Head gimbal assembly 有权
    头万向节装配

    公开(公告)号:US20100085664A1

    公开(公告)日:2010-04-08

    申请号:US12586796

    申请日:2009-09-28

    IPC分类号: G11B21/16

    摘要: [Problem] To provide a head gimbal assembly with a light guide structure and an information recording/reproducing apparatus which make it possible to reduce a cost of manufacture.[Means for Resolution] A head gimbal assembly 12 with a light guide structure that is included in a rotary member borne to be turnable on a pivot shaft disposed outside magnetic recording media which are rotated in a certain direction. The head gimbal assembly includes a support 40 borne by the rotary member, a slider 2 attached to the distal end of the support so that the slider will be opposed to the surface of a magnetic recording medium, an optical waveguide 32 that is coupled to the slider in order to introduce light, with which the magnetic recording medium is heated, into the slider, a light source 20 that routes a light beam to the optical waveguide, and an electric wiring 31 over which power is fed to the light source and slider, and the light source is disposed on the support.

    摘要翻译: [问题]提供一种具有导光结构和信息记录/再现装置的头万向节组件,其可以降低制造成本。 [分辨装置]具有导光结构的头万向架组件12,其包括在旋转构件中,该旋转构件被承载成可在设置在磁记录介质外部的枢转轴上转动,该旋转构件沿特定方向旋转。 头万向节组件包括由旋转构件承载的支撑件40,附接到支撑件的远端的滑块2,使得滑块将与磁记录介质的表面相对;光波导32,其耦合到 滑动器,以便将磁记录介质被加热的光引入到滑块中,将光束路由到光波导的光源20以及将电力馈送到光源和滑块的电线31 并且光源设置在支撑件上。