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    • 62. 发明申请
    • PIEZOELECTRIC DRIVEN MEMS APPARATUS AND PORTABLE TERMINAL
    • 压电驱动MEMS器件和便携式终端
    • US20090051251A1
    • 2009-02-26
    • US12133027
    • 2008-06-04
    • Takashi KawakuboToshihiko NaganoMichihiko Nishigaki
    • Takashi KawakuboToshihiko NaganoMichihiko Nishigaki
    • H01L41/047
    • H01G5/16H01H2057/006H01L41/094H01L41/0946
    • A piezoelectric driven MEMS apparatus includes: a substrate; a support part provided on the substrate; a fixed electrode provided on the substrate; and an actuator having a first electrode film, a piezoelectric film formed on the first electrode film, and a second electrode film formed on the piezoelectric film, a first end of the actuator being supported by the support part, a second end of the actuator being disposed so as to be opposed to the fixed electrode. The second end of the actuator is divided into a plurality of electrode parts by a plurality of slits which pass through the first electrode film, the piezoelectric film and the second electrode film, at least a part of each electrode part is linked to parts of adjacent electrode parts, and each electrode part is capable of generating bending deformation individually.
    • 压电驱动MEMS装置包括:基板; 设置在基板上的支撑部; 设置在基板上的固定电极; 以及致动器,其具有第一电极膜,形成在所述第一电极膜上的压电膜和形成在所述压电膜上的第二电极膜,所述致动器的第一端由所述支撑部支撑,所述致动器的第二端为 被设置为与固定电极相对。 致动器的第二端通过穿过第一电极膜,压电膜和第二电极膜的多个狭缝分成多个电极部分,每个电极部分的至少一部分连接到相邻部分 电极部分,并且每个电极部分能够分别产生弯曲变形。
    • 63. 发明授权
    • Bar material supply device of numerically controlled automatic lathe
    • 数控自动车床棒料供料装置
    • US07461577B2
    • 2008-12-09
    • US10579747
    • 2004-11-22
    • Takaichi NakayaTakashi KawakuboTadahiro IidaYouhei Nonaka
    • Takaichi NakayaTakashi KawakuboTadahiro IidaYouhei Nonaka
    • B23B17/00B23Q5/02
    • B23B13/128B23B13/021Y10T82/2514Y10T82/2518Y10T82/2521
    • There is provided a bar material supply device of a simple configuration suited to machining of a bar material without increasing machining cost even when a short bar material such as an end material is machined. The bar material supply device includes a stocker 12 for supplying a bar material w on an axis C of a spindle 230, a base 10 attached to a head stock 220, a push rod 15 disposed in the base 10 to move back and forth on the axis C and to push the bar material w fed from the stocker 12, a push rod guide 11 disposed in the base 10 to guide the back-and-forth movement of the push rod 15, a plurality of rollers arranged on both sides of the axis C of the base 10 to hold the push rod 15 on the axis C therebetween, one of the plurality of rollers being constituted as a driving roller 135 which is rotated by a driving body disposed in the base, and at least one of the other rollers excluding the driving roller 135 being constituted as a driven roller 132 which is rotated without any slippage with the push rod 15, and rotation detection means 133 for detecting the rotation of the driven roller 132.
    • 提供了一种简单配置的棒材料供应装置,即使在诸如端材料的短棒材料被加工时,也可以不增加加工成本而适用于棒材的加工。 棒材供给装置包括用于在主轴230的轴线C上供给棒料w的储料器12,附接到头料220的基座10,设置在基座10中的推杆15, 并且推动从储料器12供给的棒材w;设置在基座10中的引导杆11,用于引导推杆15的往复运动;多个辊, 基座10的轴线C,以将推杆15保持在其间的轴线C上,多个辊中的一个被构造为由设置在基座中的驱动体旋转的驱动辊135,并且至少一个 不包括驱动辊135的辊被构成为与推杆15无任何滑动而旋转的从动辊132,以及用于检测从动辊132的旋转的旋转检测装置133。
    • 64. 发明申请
    • MEMS SWITCH
    • MEMS开关
    • US20080017489A1
    • 2008-01-24
    • US11673984
    • 2007-02-12
    • Takashi KawakuboToshihiko NaganoMichihiko Nishigaki
    • Takashi KawakuboToshihiko NaganoMichihiko Nishigaki
    • H01H57/00
    • H01H59/0009H01H1/20H01H1/50H01H2057/006
    • A MEMS switch according to one aspect of the present invention comprises: a substrate; a fixing portion formed on the substrate; a movable beam including a lower electrode, a first insulation layer formed on the lower electrode, and an upper electrode formed on the first insulation layer, the movable beam having one end fixed by the fixing portion, the lower electrode and the first insulation layer having an opening going through both of the lower electrode and the first insulation layer; a fixed electrode formed on the substrate facing to a bottom surface of the other end of the movable beam, the fixed electrode facing to the opening; a contact electrode formed in the opening so as to project below the bottom surface of the movable beam and to be electrically connected to the upper electrode as well as to be insulated from the lower electrode; and a second insulation layer formed on the fixed electrode and having an opening facing to the contact electrode so as to insulate the lower electrode from the fixed electrode and to permit the contact electrode to come into contact with the fixed electrode.
    • 根据本发明的一个方面的MEMS开关包括:基板; 形成在所述基板上的固定部; 可动梁,包括下电极,形成在下电极上的第一绝缘层和形成在第一绝缘层上的上电极,可动梁的一端由固定部分固定,下电极和第一绝缘层具有 穿过下电极和第一绝缘层的开口; 形成在所述基板上的固定电极,所述固定电极面对所述可动光束的另一端的底面,所述固定电极面向所述开口; 形成在所述开口中的接触电极,以便在所述可移动光束的底表面下方突出并且与所述上电极电连接并且与所述下电极绝缘; 以及形成在固定电极上并具有面向接触电极的开口以便使下电极与固定电极绝缘并允许接触电极与固定电极接触的第二绝缘层。
    • 65. 发明授权
    • Bulk acoustic wave device and method of manufacturing the same
    • 体声波装置及其制造方法
    • US07301260B2
    • 2007-11-27
    • US10736830
    • 2003-12-17
    • Takashi Kawakubo
    • Takashi Kawakubo
    • H01L41/08
    • H03H9/173H03H3/02H03H9/105H03H9/175
    • A bulk acoustic wave device includes: a bulk acoustic wave element including a piezoelectric layer formed on a substrate, a lower electrode contacting a lower surface of the piezoelectric layer, and an upper electrode contacting an upper surface of the piezoelectric layer and partially overlapping the lower electrode, a lower hollow section being formed between the substrate and the lower surface of the piezoelectric layer, a first through-hole reaching the lower hollow section being formed through the bulk acoustic wave element in a direction perpendicular to a surface of the piezoelectric layer; an upper hollow section forming layer forming an upper hollow section with the upper surface of the piezoelectric layer, a second through-hole reaching the upper hollow section being formed therethrough in a direction perpendicular to a surface thereof; and a sealing layer covering the upper hollow section forming layer and filling up the second through-hole.
    • 体声波装置包括:体声波元件,其包括形成在基板上的压电层,与压电层的下表面接触的下电极以及与压电层的上表面接触并与压电层的下表面部分重叠的上电极 电极,在所述基板和所述压电体层的下表面之间形成下部中空部,在与所述压电体层的表面垂直的方向上通过所述体声波元件形成到达所述下部中空部的第一贯通孔; 形成具有压电层的上表面的上部中空部分的上部中空部分形成层,到达上部中空部分的第二通孔沿与其表面垂直的方向形成; 以及覆盖上部中空部形成层并填充第二通孔的密封层。
    • 66. 发明授权
    • Piezoelectric actuator and micro-electromechanical device
    • 压电致动器和微机电装置
    • US07215066B2
    • 2007-05-08
    • US11196596
    • 2005-08-04
    • Takashi KawakuboToshihiko NaganoKazuhide AbeMichihiko Nishigaki
    • Takashi KawakuboToshihiko NaganoKazuhide AbeMichihiko Nishigaki
    • H01L41/053
    • H01H57/00H01G5/18H01G5/38H01H2057/006H01L41/094H01L41/0946H01L41/0953Y10S977/837
    • A piezoelectric actuator includes a first beam including a first bottom electrode, a first piezoelectric film on the first bottom electrode, and a first top electrode on the first piezoelectric film, a fixed end assigned at an end of the first beam and fixed on a substrate, a connecting end assigned at another end of the first beam and suspended over a free space; and a second beam including a second piezoelectric film connected to the first piezoelectric film at the connecting end, a second bottom electrode under the second piezoelectric film, and a second top electrode on the second piezoelectric film, a working end assigned at an end of the second beam opposite to another end to which the connecting end is assigned and suspended over the free space; wherein a distance between centers of the fixed end and the working end is shorter than a distance from the working end to the connecting end.
    • 压电致动器包括第一梁,该第一梁包括第一底电极,第一底电极上的第一压电膜和第一压电膜上的第一顶电极,分配在第一梁的端部并固定在基板上的固定端 ,分配在第一梁的另一端并悬挂在自由空间上的连接端; 以及第二光束,包括在连接端连接到第一压电膜的第二压电膜,第二压电膜下的第二底电极和第二压电膜上的第二顶电极,分配在第二压电膜的端部的工作端 第二梁相对于连接端被分配并悬挂在自由空间上的另一端; 其中固定端和工作端的中心之间的距离短于从工作端到连接端的距离。
    • 68. 发明授权
    • Thin-film capacitor device and RAM device using ferroelectric film
    • 薄膜电容器和使用铁电薄膜的RAM器件
    • US5889696A
    • 1999-03-30
    • US45958
    • 1998-03-23
    • Takashi KawakuboNoburu FukushimaKazuhide Abe
    • Takashi KawakuboNoburu FukushimaKazuhide Abe
    • H01L27/10G11C11/22H01L21/8242H01L21/8246H01L27/105H01L27/108
    • G11C11/22
    • A semiconductor memory device is constituted by arranging a plurality of memory cells in a matrix format, each of which includes a thin-film capacitor having a ferroelectric film and a pair of electrodes facing each other via the ferroelectric film, and a transfer gate transistor connected to the thin film capacitor. A voltage corresponding to the width of a hysteresis curve obtained when the thin-film capacitor is saturated and polarized falls within the range of 5% or higher to 20% or lower of the voltage difference between the positive and negative directions in a writing operation. A remanent polarization amount obtained when the thin-film capacitor is saturated and polarized falls within the range of 5% or higher to 30% or lower of the total polarization amount obtained upon application of a voltage in the writing operation.
    • 半导体存储器件通过以矩阵形式布置多个存储单元而构成,每个存储单元包括具有铁电膜的薄膜电容器和经由铁电体膜相互面对的一对电极,并且连接有传输栅极晶体管 到薄膜电容器。 当薄膜电容器饱和和极化时获得的滞后曲线的宽度对应的电压落在写入操作中正负方向之间的电压差的5%以上至20%以下的范围内。 当薄膜电容器饱和和极化时获得的剩余极化量落在在写入操作中施加电压时获得的总极化量的5%以上至30%以下的范围内。