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55 条记录 (耗时 0.04 秒)

    Surface acoustic wave device and duplexer
    2.
    发明授权
    Surface acoustic wave device and duplexer 有权
    表面声波装置和双工器

    公开(公告)号：US07800464B2

    公开(公告)日：2010-09-21

    申请号：US12103814

    申请日：2008-04-16

    申请人： Motoyuki Tajima ,  Toshio Nishizawa ,  Osamu Ikata

    发明人： Motoyuki Tajima ,  Toshio Nishizawa ,  Osamu Ikata

    IPC分类号： H03H9/15 ,  H01L41/083

    CPC分类号： H03H9/02559 ,  H03H9/02574 ,  H03H9/02866 ,  H03H9/6483

    摘要： A surface acoustic wave device includes a supporting substrate, a LiTaO3 piezoelectric substrate joined on the supporting substrate, which has a normal line direction on a main surface thereof in a direction rotated 43° to 53° from a Y axis to a Z axis direction about an X axis, and an electrode pattern formed on the piezoelectric substrate.

    摘要翻译： 表面声波装置包括支撑基板，连接在支撑基板上的LiTaO3压电基板，该基板在其主表面上沿从Y轴向Z轴方向旋转43°至53°的方向具有法线方向 X轴，以及形成在压电基板上的电极图案。

    Acceleration sensor
    4.
    发明授权
    Acceleration sensor 失效
    加速度传感器

    公开(公告)号：US06796181B2

    公开(公告)日：2004-09-28

    申请号：US10322632

    申请日：2002-12-19

    申请人： Hiroshi Tanaka ,  Hiroshi Ishikawa ,  Osamu Ikata

    发明人： Hiroshi Tanaka ,  Hiroshi Ishikawa ,  Osamu Ikata

    IPC分类号： G01P1509

    CPC分类号： G01P15/0922

    摘要： An acceleration sensor includes a piezoelectric single-plate having a weight part and a detection part. The piezoelectric single-plate is, for example, an X-cut plate of LiNbO3.

    摘要翻译： 加速度传感器包括具有重量部分和检测部分的压电单板。 压电单板例如是LiNbO 3的X切割板。

    Surface acoustic wave filter
    5.
    再颁专利
    Surface acoustic wave filter 有权
    表面声波滤波器

    公开(公告)号：USRE37375E1

    公开(公告)日：2001-09-18

    申请号：US09158074

    申请日：1998-09-22

    申请人： Yoshio Satoh ,  Osamu Ikata ,  Tsutomu Miyashita ,  Takashi Matsuda ,  Mitsuo Takamatsu

    发明人： Yoshio Satoh ,  Osamu Ikata ,  Tsutomu Miyashita ,  Takashi Matsuda ,  Mitsuo Takamatsu

    IPC分类号： H03H964

    CPC分类号： H03H9/6436 ,  H03H9/0576 ,  H03H9/1071 ,  H03H9/6433 ,  H03H9/6483 ,  H03H9/72 ,  H03H9/725 ,  H03H2250/00

    摘要： A SAW filter includes a first SAW resonator having a pair of terminals and a predetermined resonance frequency (frp), the first SAW resonator being provided in a parallel arm of the SAW filter. A second SAW resonator has a pair of terminals and a predetermined resonance frequency (frs) approximately equal to a predetermined antiresonance frequency of the first SAW resonator (fap). The second SAW resonator is provided in a series arm of the SAW filter. An inductance element is connected in series to the first SAW resonator.

    摘要翻译： SAW滤波器包括具有一对端子和预定谐振频率（frp）的第一SAW谐振器，第一SAW谐振器设置在SAW滤波器的并联臂中。 第二SAW谐振器具有大约等于第一SAW谐振器（fap）的预定反谐振频率的一对端子和预定谐振频率（frs）。 第二SAW谐振器设置在SAW滤波器的串联臂中。 电感元件与第一SAW谐振器串联连接。

    Multimode surface acoustic wave filter with a coupling section not being a uniform metal film
    6.
    发明授权
    Multimode surface acoustic wave filter with a coupling section not being a uniform metal film 失效
    具有耦合部分的多模表面声波滤波器不是均匀的金属膜

    公开(公告)号：US06121860A

    公开(公告)日：2000-09-19

    申请号：US831332

    申请日：1997-03-31

    申请人： Jun Tsutsumi ,  Osamu Ikata ,  Yoshio Satoh

    发明人： Jun Tsutsumi ,  Osamu Ikata ,  Yoshio Satoh

    IPC分类号： H03H9/145 ,  H03H9/00 ,  H03H9/64

    CPC分类号： H03H9/6479 ,  H03H9/0028 ,  H03H9/643 ,  H03H9/6463

    摘要： The multimode surface acoustic wave filter includes two surface acoustic wave resonators closely arranged on a piezoelectric substrate in a direction perpendicular to the propagation direction of surface acoustic waves and acoustically coupled by a coupling section, each of the surface acoustic wave resonators including an interdigital transducer and two reflectors disposed closely on both sides of the interdigital transducer in a direction parallel to the propagation direction of the surface acoustic waves, the interdigital transducer having an excitation section for exciting the surface acoustic waves and a signal terminal section for inputting an electric signal, each of the reflectors having a grating section and a terminal section, wherein the velocity of surface acoustic waves propagating through the coupling section is a little larger than the velocity of the surface acoustic waves propagating through the excitation section of the interdigital transducer.

    摘要翻译： 多模声表面波滤波器包括两个表面声波谐振器，其紧密地布置在压电基片上，在与声表面波的传播方向垂直的方向上，并由耦合部分声学耦合，每个声表面波谐振器包括一指叉式换能器和 两个反射器在平行于表面声波的传播方向的方向上紧密地布置在叉指式换能器的两侧上，叉指换能器具有用于激励表面声波的激励部分和用于输入电信号的信号端子部分 具有光栅部分和端子部分的反射器，其中通过耦合部分传播的表面声波的速度比通过叉指换能器的激励部分传播的表面声波的速度稍大。

    Surface acoustic wave device with an angle .alpha. related to specific piezoelectric substrates
    7.
    发明授权
    Surface acoustic wave device with an angle .alpha. related to specific piezoelectric substrates 失效
    具有与特定压电基板相关的角度α的表面声波装置

    公开(公告)号：US6075426A

    公开(公告)日：2000-06-13

    申请号：US153336

    申请日：1998-09-15

    申请人： Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata ,  Yoshio Satoh

    发明人： Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata ,  Yoshio Satoh

    IPC分类号： H03H9/145 ,  H03H9/64

    CPC分类号： H03H9/14552 ,  H03H9/6426

    摘要： A surface acoustic wave device includes a piezoelectric substrate and plural IDTs for sending and receiving SAW mounted on the substrate. At least one of the IDTs includes a positive electrode including plural positive split electrodes (PSEs) and a negative electrode including plural negative split electrodes (NSEs). The PSEs and NSEs are arranged alternately. Each of the PSEs andNSEs has apair of electrode fingers. Two electrode fingers of each of the split electrodes are different in width in a direction in which a SAW is excited. An angle .alpha. determined by a direction transverse to the electrode fingers from one of the two electrode fingers having a smaller reflection factor toward the other one having a larger reflection factor and a direction in which the SAW excited by the IDT including the split electrodes travels to one of the IDTs for receiving the SAW is equal to or larger than 0.degree. and smaller than 90.degree., i.e., 0.ltoreq..alpha.

    摘要翻译： 表面声波装置包括压电基板和用于发送和接收安装在基板上的SAW的多个IDT。 IDT中的至少一个包括包括多个正分裂电极（PSE）的正电极和包括多个负分离电极（NSE）的负电极。 PSEs和NSEs交替排列。 每个PSE和NSE都有电极指的孔。 每个分离电极的两个电极指在SAW被激发的方向上的宽度不同。 由横向于电极指的方向由具有较小反射系数的两个电极指的另一个具有较大反射系数的方向确定的角度α和由包括分离电极的IDT激发的SAW的方向传播到 用于接收SAW的IDT之一等于或大于0°并小于90°，​​即0 <α<90°。

    Packaged surface acoustic wave filter chips utilizing an on-chip relay terminal
    9.
    发明授权
    Packaged surface acoustic wave filter chips utilizing an on-chip relay terminal 失效
    使用片上继电器端子的封装声表面波滤波器芯片

    公开(公告)号：US6023204A

    公开(公告)日：2000-02-08

    申请号：US153335

    申请日：1998-09-15

    申请人： Osamu Ikata ,  Yoshio Satoh ,  Takashi Matsuda ,  Jun Tsutsumi ,  Satoshi Miyamoto

    发明人： Osamu Ikata ,  Yoshio Satoh ,  Takashi Matsuda ,  Jun Tsutsumi ,  Satoshi Miyamoto

    IPC分类号： H03H9/25 ,  H03H9/05 ,  H03H9/64 ,  H03H9/10

    CPC分类号： H03H9/1071 ,  H03H2250/00

    摘要： A surface acoustic wave device includes a plurality of surface acoustic wave filter chips having external connection terminals and a package accommodating the plural surface acoustic wave filter chips. The package is provided with a plurality of terminals for connection with the surface acoustic wave filter chips, and one of the external connection terminals of a first one of the surface acoustic wave filter chips is connected with one of the terminals of the package via a second one of the surface acoustic wave filter chips.

    摘要翻译： 表面声波装置包括具有外部连接端子的多个表面声波滤波器芯片和容纳多个表面声波滤波器芯片的封装。 该封装设置有多个用于与表面声波滤波器芯片连接的端子，并且第一个声表面波滤波器芯片的外部连接端子中的一个外部连接端子通过第二个 一个声表面波滤波芯片。