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    Surface acoustic wave resonator
    1.
    发明授权
    Surface acoustic wave resonator 失效
    表面声波谐振器

    公开(公告)号：US4760359A

    公开(公告)日：1988-07-26

    申请号：US763

    申请日：1987-01-06

    申请人： Takashi Shiba ,  Norio Hosaka ,  Takemitsu Buma ,  Jun Yamada

    发明人： Takashi Shiba ,  Norio Hosaka ,  Takemitsu Buma ,  Jun Yamada

    IPC分类号： H03H9/02 ,  H03H9/25

    CPC分类号： H03H9/0285 ,  H03H9/25

    摘要： A surface acoustic wave resonator has two solid-type interdigital transducers and two grating reflectors arranged on a piezoelectric substrate or on a surface acoustic wave substrate which contains a piezoelectric material and the reflectors are arranged outside these transducers. If the electrode pitch of the interdigital transducers is suitably different from the pitch of grating of the reflectors, ripples caused by the triple transit echo at frequencies other than the peak frequency are deviated so as to lie outside the stop band of the reflectors, so that spurious responses are suppressed. In this case, the number of electrode pairs Ni of the interdigital transducers should satisfy a relation, Ni.gtoreq..pi./.epsilon., wherein .epsilon. denotes a characteristic mechanical impedance mismatch contribution on the surface of the electrode and on the free surface in the interdigital transducers, so that a peak caused by the trapping of energy in the interdigital transducers is brought into agreement with a peak caused by the triple transit echo to decrease the losses and to increase the Q value.

    摘要翻译： 表面声波谐振器具有两个固体型叉指式换能器和布置在压电基片上的两个光栅反射器或包含压电材料的表面声波基片，反射器设置在这些换能器之外。 如果叉指式换能器的电极间距适当地不同于反射器的光栅的间距，则在峰值频率以外的频率处由三次转接回波引起的波纹偏离，以便位于反射器的阻带之外，使得 杂散响应被抑制。 在这种情况下，叉指式换能器的电极对Ni的数量应满足关系式，其中，ε表示在电极表面上和叉指中的自由表面上的特征性机械阻抗失配贡献 换能器，使得由叉指式换能器中的能量捕获引起的峰值与由三通道回波引起的峰值相一致，以减少损耗并增加Q值。

    Hole cover for motor vehicle
    5.
    发明申请
    Hole cover for motor vehicle 审中-公开
    汽车孔盖

    公开(公告)号：US20060108782A1

    公开(公告)日：2006-05-25

    申请号：US10527168

    申请日：2003-09-10

    申请人： Yasuo Kanazawa ,  Jun Yamada ,  Takashi Shiba

    发明人： Yasuo Kanazawa ,  Jun Yamada ,  Takashi Shiba

    IPC分类号： B62D1/16

    CPC分类号： F16J15/50 ,  B60R13/0846 ,  B60R13/0853 ,  B62D1/16 ,  F16J15/3224 ,  F16J15/3276

    摘要： A hole cover for a vehicle, for covering an opening on a panel through which a steering element is to pass includes an elastic seal portion having a steering penetration portion through which the steering element passes and being in close contact with a sealing surface formed on the edge of the opening of the panel, and a latch member adapted to be pressed against the panel substantially along the axis of the steering element.

    摘要翻译： 一种用于覆盖操纵元件所通过的面板上的开口的用于车辆的孔盖包括具有转向穿透部分的弹性密封部分，所述转向穿透部分通过所述转向穿透部分，所述转向穿透部分通过所述转向穿透部分并与形成在 面板的开口的边缘，以及适于基本上沿着转向元件的轴线压靠在面板上的闩锁构件。

    Surface acoustic wave device having apodized transducer provided with irregular pitch electrode group
    6.
    发明授权
    Surface acoustic wave device having apodized transducer provided with irregular pitch electrode group 失效
    具有不规则间距电极组的变迹传感器的声表面波装置

    公开(公告)号：US4918349A

    公开(公告)日：1990-04-17

    申请号：US267294

    申请日：1988-11-04

    申请人： Takashi Shiba ,  Yuji Fujita ,  Toshimitsu Takahashi ,  Jun Yamada

    发明人： Takashi Shiba ,  Yuji Fujita ,  Toshimitsu Takahashi ,  Jun Yamada

    IPC分类号： H03H9/02 ,  H03H9/145

    CPC分类号： H03H9/02889 ,  H03H9/02755 ,  H03H9/02992 ,  H03H9/14505 ,  H03H9/14508 ,  H03H9/1452 ,  H03H9/14552

    摘要： A surface acoustic wave device characterized in that in addition to linear first bus-bar electrodes which connect in alignment the edges of the same potential electrodes of interdigital electrodes, second bus-bar electrodes are provided which connect the same potential electrodes in the vicinity of the overlapping positions. Also disclosed is a surface acoustic wave device characterized in that the metalized ratio g/p, which is the ratio of the width of an electrode and the intercentral distance between the adjacent electrodes in an irregular pitch electrode group, is varied between 0.1 to 0.4 or between 0.6 to 0.9.

    摘要翻译： 一种表面声波装置，其特征在于，除了连接在叉指电极的相同电位电极的边缘上的线性第一汇流条电极之外，还提供了第二汇流条电极，其将相邻的电位电极 重叠位置 还公开了一种弹性表面波器件，其特征在于，在不规则间距电极组中，电极宽度与相邻电极之间的中心距离之比的金属化率g / p在0.1至0.4之间变化或 介于0.6至0.9之间。

    Surface elastic wave device
    7.
    发明授权
    Surface elastic wave device 失效
    表面弹性波装置

    公开(公告)号：US4689586A

    公开(公告)日：1987-08-25

    申请号：US869979

    申请日：1986-06-02

    申请人： Jun Yamada ,  Akitsuna Yuhara ,  Takashi Shiba ,  Yuji Fujita

    发明人： Jun Yamada ,  Akitsuna Yuhara ,  Takashi Shiba ,  Yuji Fujita

    IPC分类号： H03H9/02 ,  H03H9/145 ,  H03H9/42

    CPC分类号： H03H9/14505

    摘要： A surface acoustic wave (SAW) device comprises a piezo-electric surface acoustic substrate, and plural sets of input/output interdigital electrodes disposed on the substrate. A phase shifter is provided between a sending electrode and a reflecting electrode included in the input or output interdigital electrodes for producing an electrical phase difference to implement a unidirectional electrode. The sending electrode and the reflecting electrode are mutually connected through the phase shifter including two pure reactance elements serially connected between the sending and the reflecting electrodes and a pure reactance element connected to the junction between the two serially connected reactance elements so as to form a T-circuit. When the two serially connected pure reactance elements are selected equal to each other, the operating frequency band is broadened. The phase shifter includes no ohmic resistance and thus is lossless.

    摘要翻译： 表面声波（SAW）器件包括压电表面声学衬底和设置在衬底上的多组输入/输出叉指电极。 在发送电极和包括在输入或输出叉指电极中的反射电极之间提供移相器，用于产生电相差以实现单向电极。 发送电极和反射电极通过移相器相互连接，该移相器包括串联连接在发送电极和反射电极之间的两个纯电抗元件和连接到两个串联的电抗元件之间的接点的纯电抗元件，从而形成T 电路 当选择两个串联的纯电抗元件彼此相等时，工作频带变宽。 移相器不包含欧姆电阻，因此无损耗。

    Dust Cover for a Steering Shaft
    8.
    发明申请
    Dust Cover for a Steering Shaft 有权
    转向轴防尘罩

    公开(公告)号：US20080231003A1

    公开(公告)日：2008-09-25

    申请号：US10586091

    申请日：2005-01-14

    申请人： Seiichi Moriyama ,  Hiroshi Satou ,  Jun Yamada ,  Takashi Shiba ,  Tomohiko Ikenoya ,  Jun Watanabe

    发明人： Seiichi Moriyama ,  Hiroshi Satou ,  Jun Yamada ,  Takashi Shiba ,  Tomohiko Ikenoya ,  Jun Watanabe

    IPC分类号： B62D1/20 ,  F16J15/16 ,  F16J3/04

    CPC分类号： F16J3/041 ,  B60R13/0846 ,  B62D1/16

    摘要： [Problem] A dust cover for a steering prevents offensive sounds from emitting during an operation of a steering wheel.[Means for Solving] A dust cover for a steering shaft according to the present invention includes: a bush 2 of low-frictional material, through which a steering shaft 20 penetrates; a plurality of bellows 3 made of rubber, provided in an axial direction of the steering shaft 20, and arranged between the bush 2 and a panel 19, for sealing the clearance; and an annular seal lip 4 in contact with the outer periphery of the steering shaft 20.

    摘要翻译： [问题]用于转向的防尘罩防止在方向盘的操作期间发出的令人反感的声音。 具体实施方式根据本发明的用于转向轴的防尘罩包括：转向轴20穿过的低摩擦材料的衬套2; 多个由橡胶制成的波纹管3，设置在转向轴20的轴向上，并且布置在衬套2和面板19之间，用于密封间隙; 以及与转向轴20的外周接触的环形密封唇缘4。

    Method and apparatus for preparing crystal thin films by using a surface acoustic wave
    9.
    发明授权
    Method and apparatus for preparing crystal thin films by using a surface acoustic wave 失效
    通过使用表面声波制备晶体薄膜的方法和装置

    公开(公告)号：US5837332A

    公开(公告)日：1998-11-17

    申请号：US690030

    申请日：1996-07-31

    申请人： Migaku Takahashi ,  Katsuya Yokoyama ,  Jun Yamada ,  Takashi Shiba

    发明人： Migaku Takahashi ,  Katsuya Yokoyama ,  Jun Yamada ,  Takashi Shiba

    IPC分类号： C23C14/22 ,  C23C16/44 ,  G11B5/012 ,  G11B5/31 ,  G11B5/84 ,  G11B5/85 ,  G11B5/851 ,  H01F41/30 ,  H01L39/24 ,  B06B1/00 ,  H03H9/00

    CPC分类号： B82Y25/00 ,  B82Y40/00 ,  C23C14/22 ,  C23C16/4415 ,  G11B5/012 ,  G11B5/3163 ,  G11B5/8404 ,  G11B5/85 ,  G11B5/851 ,  H01F41/302 ,  H01L39/2496

    摘要： A method and apparatus for preparing thin films, a device, an electronic and magnetic apparatus, an information recording and reproducing apparatus, an information processing apparatus and a crystal preparing method from the molten state. A thin film is prepared as the substrate or the surface of the substrate is being excited and characterized by a device having at least a substrate and a thin film with at least one layer prepared thereon and an electronic and magnetic apparatus having integration of the devices, wherein at least one layer of the thin film is prepared as the surface of the substrate is being excited. The recording and reproducing apparatus for recording and reproducing information is composed of an information memory medium device having a recording layer of the thin film prepared as the surface of the substrate is being excited and a recording head whose core is prepared as the surface of the substrate is being excited. An information processing apparatus for use in input, record, process and output of information is composed of an information memory medium device having a recording layer which is prepared as the surface of the substrate is being excited and a processing part having a semiconductor device with a thin film prepared as the surface of the substrate is being excited.

    摘要翻译： 一种从熔融状态制备薄膜的方法和装置，装置，电子和磁性装置，信息记录和再现装置，信息处理装置和晶体制备方法。 制备薄膜作为衬底或者衬底的表面被激发并且通过具有至少一个衬底的薄膜和其上制备有至少一层的薄膜和具有这些器件集成的电子和磁性设备被激发并表征， 其中当衬底的表面被激发时，制备至少一层薄膜。 用于记录和再现信息的记录和再现装置由一个信息存储介质装置组成，该信息存储介质装置具有被激励的衬底表面所制备的薄膜的记录层，以及一个记录头，其芯准备为衬底的表面 正在兴奋 用于信息的输入，记录，处理和输出的信息处理装置由具有记录层的信息存储介质装置组成，该记录层是在被激励的基板的表面上准备的，并且具有半导体装置的处理部分具有 作为衬底表面制备的薄膜正在被激发。

    Surface acoustic wave filter with capacitive phase shifter
    10.
    发明授权
    Surface acoustic wave filter with capacitive phase shifter 失效
    具有电容移相器的表面声波滤波器

    公开(公告)号：US4818961A

    公开(公告)日：1989-04-04

    申请号：US181700

    申请日：1988-04-14

    申请人： Toshimitsu Takahashi ,  Takashi Shiba ,  Yuji Fujita ,  Jun Yamada

    发明人： Toshimitsu Takahashi ,  Takashi Shiba ,  Yuji Fujita ,  Jun Yamada

    IPC分类号： H03H9/02 ,  H03H9/145 ,  H03H9/64

    CPC分类号： H03H9/6493 ,  H03H9/14508

    摘要： A group-type unidirectional surface acoustic wave filter composed of sending electrodes, reflecting electrodes and meander electrodes constituted by interdigital electrodes, respectively. As a phase shifter of the filter, a capacitive element is used. The geometrical configuration of the meander electrode is determined in accordance with geometrical phase difference. The filter enjoys low insertion loss with a simplified structure.

    摘要翻译： 分别由发射电极，反射电极和由叉指电极构成的曲折电极组成的组型单向表面声波滤波器。 作为滤波器的移相器，使用电容元件。 曲折电极的几何结构根据几何相位差来确定。 该滤波器具有简单结构的低插入损耗。