公开(公告)号：US07126252B2

公开(公告)日：2006-10-24

申请号：US11251896

申请日：2005-10-18

申请人： Hiroyuki Kita

发明人： Hiroyuki Kita

IPC分类号： H01L41/09

CPC分类号： G11B5/596 ,  G11B5/5552 ,  H01L41/042 ,  H02N2/0075

摘要： A position control device has a piezoelectric actuator, a power supply for applying voltage to the piezoelectric actuator, a position control unit, and a reverse low voltage control unit. The position control unit identifies a position control state in which position control is performed by displacing the piezoelectric actuator and a standby state that does not require the position control, and controls the position. When the position control unit identifies the standby state, the reverse low voltage control unit sets a reverse low voltage that is directed opposite to the polarization direction of the piezoelectric film and is lower than a coercive voltage and a set time during which the reverse low voltage is applied, and transmits a power supply control signal for generating the set reverse low voltage and set time to the power supply. Thus, a large displacement amount is achieved and a long lifetime can be realized.

摘要翻译： 位置控制装置具有压电致动器，用于向压电致动器施加电压的电源，位置控制单元和反向低压控制单元。 位置控制单元通过移动压电致动器和不需要位置控制的待机状态来识别执行位置控制的位置控制状态，并且控制位置。 当位置控制单元识别待机状态时，反向低电压控制单元设置与压电膜的偏振方向相反的反向低电压，并且低于矫顽电压和反相低电压的设定时间 并且将用于产生设定的反向低电压的电源控制信号和设定时间传送到电源。 因此，实现了大的位移量并且可以实现长的寿命。

公开(公告)号：US07102274B2

公开(公告)日：2006-09-05

申请号：US10847316

申请日：2004-05-18

申请人： Hiroyuki Kita

发明人： Hiroyuki Kita

IPC分类号： H01L41/08

CPC分类号： H01L41/0805 ,  H01L41/0986 ,  H01L41/1876 ,  H01L41/316

摘要： A piezoelectric device includes a first electrode film, a second electrode film, and a piezoelectric thin film enclosed by the first electrode film and second electrode film, in which the piezoelectric thin film is an oxide piezoelectric thin film having an oxygen deficiency amount of more than 0% and not more than 10% of the stoichiometric composition. The piezoelectric device composed of the piezoelectric thin film having such oxygen deficiency has a greater piezoelectric performance as compared with the oxide piezoelectric thin film in an oxidized state of stoichiometric composition, and by manufacturing under such a condition, the film forming speed is increased, so that the mass producibility can be improved.

摘要翻译： 压电装置包括第一电极膜，第二电极膜和由第一电极膜和第二电极膜包围的压电薄膜，其中压电薄膜是氧缺乏量大于的氧化物压电薄膜 0％且不超过化学计量组成的10％。 由具有这种缺氧的压电薄膜构成的压电装置与化学计量组成的氧化态的氧化物压电薄膜相比具有更大的压电性能，并且通过在这种条件下制造成膜速度增加， 可以提高大规模生产能力。

公开(公告)号：US06903497B2

公开(公告)日：2005-06-07

申请号：US10933879

申请日：2004-09-02

申请人： Hirokazu Uchiyama ,  Yuko Ogawa ,  Hiroyuki Kita

发明人： Hirokazu Uchiyama ,  Yuko Ogawa ,  Hiroyuki Kita

IPC分类号： G11B5/596 ,  G11B21/10 ,  G11B21/21 ,  H01L41/09 ,  H01L41/18 ,  H01L41/22 ,  H01L41/23 ,  H01L41/313 ,  H01L41/08

CPC分类号： H01L41/332 ,  H01L41/314 ,  Y10S29/001 ,  Y10S29/016 ,  Y10T29/42 ,  Y10T29/49128 ,  Y10T29/49155 ,  Y10T29/4981

摘要： A thin film piezoelectric element including a first structure having a sequential stack of layers, a first main electrode layer, a first opposed electrode layer and a first piezoelectric thin film having a first polarizing direction located between the first electrode layers, a second structure having as a sequential stack of layers, a second main electrode layer, a second opposed electrode layer and a second piezoelectric thin film having a second polarizing direction located between the second electrode layers, an insulating resin layer covering peripheral portions of the first and second structures, and at least one connecting electrode pad located at a side of one of the first and second structures, for connecting the main electrode layer and the opposed electrode layer of the structures to external equipment, wherein each first and second structures has a cross-sectional shape such that the piezoelectric thin film is tapered, diminishing in width, from a portion near the main electrode layer to a portion near the opposed electrode layer, and the first and second opposed electrode layers of adjacent structures are bonded to each other, and each polarizing direction of the piezoelectric thin films is identical to the direction of each opposed electrode layer.

摘要翻译： 一种薄膜压电元件，包括具有顺序叠层的第一结构，第一主电极层，第一相对电极层和具有位于第一电极层之间的第一偏振方向的第一压电薄膜，第二结构具有如 层叠顺序堆叠，第二主电极层，第二相对电极层和具有位于第二电极层之间的第二偏振方向的第二压电薄膜，覆盖第一和第二结构的周边部分的绝缘树脂层，以及 至少一个连接电极焊盘，位于所述第一和第二结构之一的一侧，用于将所述主电极层和所述结构的相对电极层连接到外部设备，其中每个第一和第二结构具有如下的横截面形状： 压电薄膜与主电极附近的部分呈锥形，宽度减小 并且相邻结构的第一和第二相对电极层彼此接合，并且压电薄膜的每个偏振方向与每个相对电极层的方向相同。

公开(公告)号：USD504165S1

公开(公告)日：2005-04-19

申请号：US29207996

申请日：2004-06-21

申请人： Hiroyuki Kita ,  Keizo Suenaga

设计人： Hiroyuki Kita ,  Keizo Suenaga

公开(公告)号：US06817073B2

公开(公告)日：2004-11-16

申请号：US10287797

申请日：2002-11-05

申请人： Hirokazu Uchiyama ,  Yuko Ogawa ,  Hiroyuki Kita

发明人： Hirokazu Uchiyama ,  Yuko Ogawa ,  Hiroyuki Kita

IPC分类号： H04R1700

CPC分类号： H01L41/332 ,  H01L41/314 ,  Y10S29/001 ,  Y10S29/016 ,  Y10T29/42 ,  Y10T29/49128 ,  Y10T29/49155 ,  Y10T29/4981

摘要： A method of manufacturing a thin film piezoelectric element, wherein main electrode layer, piezoelectric thin film, and opposed electrode layer respectively having specified shapes are first formed on first substrate and second substrate, and after that, the opposed electrodes are opposed and bonded to each other, and insulating resin layer is formed over the peripheral portion thereof, and then the second substrate is removed, the insulating resin layer is etched, and connecting electrode pad is formed, and finally, the first substrate is removed to obtain a completely separated thin film piezoelectric element. By this method, it is possible to improve the reproducibility of shapes and to prevent trouble such as shorting between the electrodes which hold the piezoelectric thin film, thereby making it possible to provide a thin film piezoelectric element that may assure high yield without variation in piezoelectric characteristics, and its manufacturing method.

摘要翻译： 首先，在第一基板和第二基板上首先形成分别具有特定形状的主电极层，压电薄膜和相对电极层的薄膜压电元件的制造方法，然后将相对的电极相对并贴合 其它绝缘树脂层形成在其周边部分上，然后除去第二基板，蚀刻绝缘树脂层，形成连接电极焊盘，最后移除第一基板以获得完全分离的薄片 薄膜压电元件。 通过这种方法，可以提高形状的再现性，并且可以防止保持压电薄膜的电极之间的短路等故障，从而可以提供可以保证高产率而不会在压电变化的情况下提供的薄膜压电元件 特点及其制造方法。

公开(公告)号：US4864402A

公开(公告)日：1989-09-05

申请号：US64013

申请日：1987-06-19

申请人： Norio Ebihara ,  Takayuki Sasaki ,  Hiroyuki Kita ,  Yoshihito Ohsawa

发明人： Norio Ebihara ,  Takayuki Sasaki ,  Hiroyuki Kita ,  Yoshihito Ohsawa

IPC分类号： G11C7/10 ,  H04N5/907 ,  H04N9/877

CPC分类号： G11C7/1036 ,  H04N5/907 ,  H04N9/877

摘要： A video memory, for use with a video tape recorder, a television receiver of the like to process a picture, is simplified and can achieve the functions of a time base corrector, a noise reducer and a comb filter, so as to considerably improve the quality of a video picture. A frequency converting circuit for use with the video memory includes a comparator for comparing first and second address signals and an address correction circuit connected to receive an output signal from the comparator. When a crossing occurs between the first and second address signals, the sequential order in which an address signal is supplied to the memory is switched by the address correcting circuit, to thereby derive a continuous output signal from the memory.

摘要翻译： 用于录像机的视频存储器，类似于其的处理图像的电视接收机被简化，可以实现时基校正器，降噪器和梳状滤波器的功能，从而显着改善 视频图片的质量。 用于视频存储器的频率转换电路包括用于比较第一和第二地址信号的比较器和连接以从比较器接收输出信号的地址校正电路。 当在第一和第二地址信号之间发生交叉时，由地址校正电路切换提供给存储器的地址信号的顺序，从而从存储器导出连续的输出信号。

公开(公告)号：USD559678S1

公开(公告)日：2008-01-15

申请号：US29244370

申请日：2005-12-09

申请人： Masahiro Shiiya ,  Takao Takaki ,  Hiroyuki Kita ,  Keizo Suenaga

设计人： Masahiro Shiiya ,  Takao Takaki ,  Hiroyuki Kita ,  Keizo Suenaga

公开(公告)号：USD553978S1

公开(公告)日：2007-10-30

申请号：US29244368

申请日：2005-12-09

申请人： Masahiro Shiiya ,  Takao Takaki ,  Hiroyuki Kita ,  Keizo Suenaga

设计人： Masahiro Shiiya ,  Takao Takaki ,  Hiroyuki Kita ,  Keizo Suenaga

公开(公告)号：US07288877B2

公开(公告)日：2007-10-30

申请号：US11013994

申请日：2004-12-16

申请人： Hiroyuki Kita ,  Hirokazu Uchiyama ,  Toshiyuki Matsunaga ,  Fumiyo Tojo

发明人： Hiroyuki Kita ,  Hirokazu Uchiyama ,  Toshiyuki Matsunaga ,  Fumiyo Tojo

IPC分类号： H01L41/04 ,  H01L41/08

CPC分类号： H01L41/0933 ,  B25J7/00 ,  B25J15/12 ,  G02B6/3512 ,  G02B6/352 ,  G02B6/3578 ,  G02B6/359 ,  G02B26/0825 ,  G02B26/0858 ,  H01L41/094 ,  H01L41/0986

摘要： A piezoelectric film device has a piezoelectric film element and a power supply circuit. The piezoelectric film element is formed of a first electrode, a second electrode, and a piezoelectric film that is sandwiched between the first electrode and second electrode and has a polarization vector in the film thickness direction. The polarization vector is inverted by application of a predetermined voltage or higher through the first electrode and second electrode. The power supply circuit supplies voltage for inverting the polarization vector. The piezoelectric film has each different lattice constant depending on the direction of the polarization vector. The piezoelectric film device keeps a different displacement position corresponding to the direction of the polarization vector even when the voltage application is stopped.

摘要翻译： 压电薄膜器件具有压电薄膜元件和电源电路。 压电膜元件由夹在第一电极和第二电极之间并具有膜厚度方向的偏振矢量的第一电极，第二电极和压电膜形成。 通过施加通过第一电极和第二电极的预定电压而使极化矢量反转。 电源电路提供用于反转偏振矢量的电压。 压电膜根据极化矢量的方向具有不同的晶格常数。 即使在施加电压停止时，压电膜装置保持与极化矢量的方向对应的不同位移位置。

公开(公告)号：USD552986S1

公开(公告)日：2007-10-16

申请号：US29244369

申请日：2005-12-09

申请人： Masahiro Shiiya ,  Takao Takaki ,  Hiroyuki Kita ,  Keizo Suenaga

设计人： Masahiro Shiiya ,  Takao Takaki ,  Hiroyuki Kita ,  Keizo Suenaga