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1. 发明授权

US4426595A Acoustic surface wave device with improved band-pass characteristics 失效
标题翻译：具有改善带通特性的声表面波装置
公开(公告)号：US4426595A
公开(公告)日：1984-01-17
申请号：US341683
申请日：1982-01-22
申请人： Kuninori Kawaura , Sumio Yamada , Noboru Wakatsuki , Masaaki Ono , Shigeo Tanji , Yoshiro Fujiwara , Masanobu Yanagisawa
发明人： Kuninori Kawaura , Sumio Yamada , Noboru Wakatsuki , Masaaki Ono , Shigeo Tanji , Yoshiro Fujiwara , Masanobu Yanagisawa
IPC分类号： H03H9/25 , H03H3/08 , H03H9/02 , H03H9/64 , H01L41/10
CPC分类号： H03H9/02842 , H03H9/02866
摘要： An acoustic surface wave device comprises a piezoelectric substrate (1), an input transducer (2), an output transducer (3) and acoustical absorbent layer patterns (5, 6) for absorbing undesired acoustic surface waves and bulk waves (S.sub.4, S.sub.5). Each of the acoustical absorbent layer patterns (5, 6) has zigzag-shaped or triangular shaped edges, i.e., a recess portion (R.sub.1, R.sub.3) and a protruding portion (R.sub.2, R.sub.4). The recess portion has a further recess portion (R.sub.1 ', R.sub.3 ') which is formed diagonally with respect to the propagation path of acoustic surface waves.
摘要翻译：声表面波装置包括用于吸收不需要的声表面波和体波的压电基片（1），输入换能器（2），输出换能器（3）和吸声层图案（5,6）。每个吸声层图案（5,6）都具有锯齿状或三角形边缘，即凹部（R1，R3）和突出部分（R2，R4）。凹部具有相对于声表面波的传播路径对角地形成的另一凹部（R1'，R3'）。

2. 发明授权

US4583019A Piezoelectric resonator using 165.degree. Y-cut LiNbO.sub.3 失效
标题翻译：使用165°Y切割LiNbO3的压电谐振器
公开(公告)号：US4583019A
公开(公告)日：1986-04-15
申请号：US613187
申请日：1984-05-23
申请人： Sumio Yamada , Yoshiro Fujiwara , Noboru Wakatsuki , Yuji Kojima
发明人： Sumio Yamada , Yoshiro Fujiwara , Noboru Wakatsuki , Yuji Kojima
IPC分类号： H03H9/05 , H03H9/10 , H03H9/17 , H01L41/08
CPC分类号： H03H9/177 , H03H9/02031 , H03H9/0547 , H03H9/1014
摘要： A piezoelectric resonator with a rectangular parallelepiped resonator. A lithium niobate single crystal is used as the resonator chip material. Each of the opposed main surfaces of the resonator chip is arranged to be a surface of a rotated Y-cut plate which is rotated 165.+-.5 degrees about an X-axis. The angle of the longitudinal direction of the resonator chip is arranged to be 90.+-.5 degrees with respect to the X-axis of the rotated Y-cut plate.
摘要翻译：一种具有矩形平行六面体谐振器的压电谐振器。使用铌酸锂单晶作为谐振器芯片材料。谐振器芯片的相对的主表面中的每一个被布置为旋转的Y切割板的表面，其相对于X轴旋转165 +/- 5度。谐振器芯片的纵向方向的角度相对于旋转的Y切割板的X轴设置为90 +/- 5度。

3. 发明授权

US4468582A Piezoelectric resonator chip and trimming method for adjusting the frequency thereof 失效
标题翻译：压电谐振器芯片和调整其频率的修整方法
公开(公告)号：US4468582A
公开(公告)日：1984-08-28
申请号：US486532
申请日：1983-04-19
申请人： Yoshiro Fujiwara , Yuji Kojima , Sumio Yamada , Hiroshi Hoshino , Noboru Wakatsuki
发明人： Yoshiro Fujiwara , Yuji Kojima , Sumio Yamada , Hiroshi Hoshino , Noboru Wakatsuki
IPC分类号： H03H3/04 , H03H9/13 , H03H9/17 , H01L41/08
CPC分类号： H03H9/177 , H03H3/04 , H03H9/132
摘要： A piezoelectric resonator chip which includes a piezoelectric chip plate and a pair of electrode patterns which is formed on the opposite surfaces of the piezoelectric chip plate, the electrode patterns face each other through the piezoelectric chip plate. At least one of the electrode patterns has an adjuster pattern which includes a narrow cutting pattern and a separation pattern which is connected to the electrode pattern through the cutting pattern and which faces the other electrode pattern.
摘要翻译：一种压电谐振器芯片，其包括形成在压电片片的相对表面上的压电片片和一对电极图案，电极图案通过压电片片彼此面对。电极图案中的至少一个具有包括窄切割图案的调节器图案和通过切割图案连接到电极图案并且面对另一个电极图案的分离图案。

4. 发明授权

US4454444A LiTaO.sub.3 Piezoelectric resonator 失效
标题翻译： LiTaO3压电谐振器
公开(公告)号：US4454444A
公开(公告)日：1984-06-12
申请号：US467810
申请日：1983-02-18
申请人： Yoshiro Fujiwara , Sumio Yamada , Hiroshi Hoshino , Noboru Wakatsuki
发明人： Yoshiro Fujiwara , Sumio Yamada , Hiroshi Hoshino , Noboru Wakatsuki
IPC分类号： H03H9/02 , H03H9/05 , H03H9/17 , H01L41/08
CPC分类号： H03H9/02031 , H03H9/02157 , H03H9/177
摘要： A piezoelectric resonator which resonates in thickness shear mode. The piezoelectric resonator includes a strip shaped resonance chip made of an X-cut plate of lithium tantalate crystal and having a rectangular cross-section. Electrodes are formed at the center portion with respect to the longitudinal direction of the resonance chip on each of two X-plane surfaces. The width of the electrodes is equal to the width of the resonance chip. The longitudinal direction of the resonance chip inclines with respect to the Y-axis by an angle of 50.degree..+-.2' in the clockwise direction in the X-plane so as to make the longitudinal direction of the resonance chip coincide with the displacement direction of primary oscillation of the crystal. Optimal ratios of the dimensions of the resonance chip and terminal connectors at the ends of the resonance chip are given to reduce spurious response. The temperature characteristic is optimized by selecting rotation angles about the Y-and Z-axes in relation to the amount of trapped energy.
摘要翻译：一种在厚度剪切模式下谐振的压电谐振器。压电谐振器包括由钽酸锂晶体的X切割板制成并具有矩形横截面的带状共振芯片。在两个X平面中的每一个上，相对于谐振芯片的纵向的中心部形成电极。电极的宽度等于谐振芯片的宽度。谐振芯片的纵向方向在X平面中沿着顺时针方向相对于Y轴倾斜50度+/- 2'的角度，以使谐振芯片的纵向方向与位移一致晶体主振荡方向。谐振芯片端部的谐振芯片和端子连接器的尺寸的最佳比例被给出以减少杂散响应。通过相对于被捕获能量的量选择关于Y轴和Z轴的旋转角来优化温度特性。

5. 发明授权

US5861705A Tuning-fork vibratory gyro and sensor system using the same 失效
标题翻译：调音叉振动陀螺仪和传感器系统使用相同
公开(公告)号：US5861705A
公开(公告)日：1999-01-19
申请号：US628530
申请日：1996-04-04
申请人： Noboru Wakatsuki , Masaaki Ono , Sumio Yamada , Kazutugu Kikuchi , Motoi Yamauchi
发明人： Noboru Wakatsuki , Masaaki Ono , Sumio Yamada , Kazutugu Kikuchi , Motoi Yamauchi
IPC分类号： G01C19/5607 , H03H9/21 , H01L41/047 , G01P9/04
CPC分类号： G01C19/5607 , H03H9/21
摘要： A vibratory gyro including a tuning-fork vibrator having a piezoelectric member and a supporting member supporting the tuning-fork vibrator. The tuning-fork vibrator has a driving-side vibration mode and a detection-side vibration mode. The tuning-fork vibrator resonates in the driving-side vibration mode, and the tuning-fork vibrator and the supporting member resonate as a whole in the detection-side vibration mode.
摘要翻译：一种振动陀螺仪，包括具有压电元件的音叉振动器和支撑音叉振子的支撑部件。音叉式振动器具有驱动侧振动模式和检测侧振动模式。音叉式振动器以驱动侧振动模式谐振，并且音叉振动器和支撑构件在检测侧振动模式下整体谐振。

6. 发明授权

US06253613B1 Tuning fork vibratory gyro utilizing a piezoelectric transversal effect 失效
标题翻译：调谐叉振动陀螺利用压电横向效应
公开(公告)号：US06253613B1
公开(公告)日：2001-07-03
申请号：US08803497
申请日：1997-02-20
申请人： Masanori Yachi , Yoshio Satoh , Masaaki Ono , Yoshiro Fujiwara , Sumio Yamada , Hiroshi Ishikawa
发明人： Masanori Yachi , Yoshio Satoh , Masaaki Ono , Yoshiro Fujiwara , Sumio Yamada , Hiroshi Ishikawa
IPC分类号： G01P904
CPC分类号： G01C19/5607
摘要： A tuning-fork vibratory gyro has first and second arms and a base integrally connected to the first and second arms. The gyro includes drive electrodes used to generate tuning-fork vibrations due to a piezoelectric transversal effect, and detection electrodes provided on the first and second arms and used to output a detection voltage due to an angular velocity.
摘要翻译：音叉式振动陀螺仪具有第一和第二臂和与第一和第二臂一体连接的基座。陀螺仪包括用于由于压电横向效应而产生音叉振动的驱动电极，以及设置在第一和第二臂上的检测电极，用于输出由角速度引起的检测电压。

7. 发明授权

US06484576B2 Tuning-fork vibratory gyro 失效
标题翻译：调音叉振动陀螺仪
公开(公告)号：US06484576B2
公开(公告)日：2002-11-26
申请号：US09741834
申请日：2000-12-22
申请人： Masanori Yachi , Yoshio Satoh , Masaaki Ono , Yoshiro Fujiwara , Sumio Yamada , Hiroshi Ishikawa
发明人： Masanori Yachi , Yoshio Satoh , Masaaki Ono , Yoshiro Fujiwara , Sumio Yamada , Hiroshi Ishikawa
IPC分类号： G01P904
CPC分类号： G01C19/5607
摘要： A tuning-fork vibratory gyro has first and second arms and a base integrally connected to the first and second arms. The gyro includes drive electrodes used to generate tuning-fork vibrations due to a piezoelectric transversal effect, and detection electrodes provided on the first and second arms and used to output a detection voltage due to an angular velocity.
摘要翻译：音叉式振动陀螺仪具有第一和第二臂和与第一和第二臂一体连接的基座。陀螺仪包括用于由于压电横向效应而产生音叉振动的驱动电极，以及设置在第一和第二臂上的检测电极，用于输出由角速度引起的检测电压。

8. 发明授权

US06177756B1 Piezoelectric gyro and method of driving the piezoelectric gyro 失效
标题翻译：压电陀螺仪和驱动压电陀螺仪的方法
公开(公告)号：US06177756B1
公开(公告)日：2001-01-23
申请号：US09223282
申请日：1998-12-30
申请人： Masanori Yachi , Noboru Wakatsuki , Sumio Yamada
发明人： Masanori Yachi , Noboru Wakatsuki , Sumio Yamada
IPC分类号： H01L4108
CPC分类号： G01C19/5607
摘要： In a piezoelectric gyro, an amplifier 42 receives and amplifies a detected signal from detecting electrodes 19 through 26, and a bandpass filter 43 extracts only a detection-side resonant frequency component from the amplified signal. The extracted resonant frequency component is phase-shifted by a phase-shifting circuit 44, and the resultant signal is passed through a limiting resistor 45 to prepare a constant-current drive signal, and the drive signal is inputted to drive electrodes 11 through 18. As a result, the piezoelectric gyro oscillates self-excitedly at the detection-side resonant frequency. The present invention provides a piezoelectric gyro capable of maintaining a high sensitivity with respect to a change in temperature by improving detection sensitivity.
摘要翻译：在压电陀螺仪中，放大器42接收并放大来自检测电极19至26的检测信号，带通滤波器43仅从放大信号中提取检测侧谐振频率分量。所提取的谐振频率分量被移相电路44相移，并且所得到的信号通过限制电阻器45以制备恒流驱动信号，并且驱动信号被输入到驱动电极11至18。结果，压电陀螺以检测侧共振频率自激振荡。本发明提供一种能够通过提高检测灵敏度来维持相对于温度变化的高灵敏度的压电陀螺仪。

9. 发明授权

US06404108B1 Piezoelectric actuator 失效
标题翻译：压电执行器
公开(公告)号：US06404108B1
公开(公告)日：2002-06-11
申请号：US09219367
申请日：1998-12-23
申请人： Masanori Yachi , Noboru Wakatsuki , Sumio Yamada
发明人： Masanori Yachi , Noboru Wakatsuki , Sumio Yamada
IPC分类号： H01L4108
CPC分类号： H01L41/042 , F04D33/00 , H01H57/00 , H01L41/0825
摘要： A piezoelectric actuator includes a main driver electrode 4 and a sensor electrode 5. A feedback signal is generated from the sensor electrode 5 in order to eliminate a primary vibration mode due to a primary resonance frequency. The main driver electrode extends to a fixture portion of the actuator, the fixture portion being fitted into a support member 11. The extending portion of the main driver electrode eliminates the electromechanical coupling against a secondary vibration mode due to a second resonance frequency. Features of the piezoelectric actuator suppress the resonance phenomenon, thus improving the response characteristics of the actuator.
摘要翻译：压电致动器包括主驱动电极4和传感器电极5.从传感器电极5产生反馈信号，以消除由初级共振频率引起的主振动模式。主驱动器电极延伸到致动器的固定部分，固定部分装配到支撑构件11中。由于第二共振频率，主驱动器电极的延伸部分消除了针对二次振动模式的机电耦合。压电致动器的特征抑制共振现象，从而提高致动器的响应特性。

10. 发明授权

US4757581A Method for producing a piezoelectric resonator 失效
标题翻译：压电谐振器的制造方法
公开(公告)号：US4757581A
公开(公告)日：1988-07-19
申请号：US938457
申请日：1986-12-05
申请人： Sumio Yamada , Yoshiro Fujiwara , Yuji Kojima , Hiroshi Hoshino
发明人： Sumio Yamada , Yoshiro Fujiwara , Yuji Kojima , Hiroshi Hoshino
IPC分类号： H03H3/02 , H03H9/10 , H03H9/17 , H01L41/08
CPC分类号： H03H9/177 , H03H3/02 , H03H9/1014 , Y10T29/42 , Y10T29/49144
摘要： A piezoelectric resonator includes a base plate and a strip-type, energy trapping piezoelectric resonator chip mounted on the base plate. The piezoelectric resonator chip includes a piezoelectric chip plate and a pair of electrode patterns formed on the opposed main surfaces of the piezoelectric chip plate. One main surface of the piezoelectric chip plate faces the base plate and is parallel therewith, and a conductive layer is formed on each end of the main surface facing the base plate. The thickness of the conductive layer is greater than that of the electrode pattern so that the electrode pattern is separated from the base plate. The conductive layer is directly mounted onto a conductive portion of the base plate, so as to electrically connect the electrode pattern and the conductive portion of the base plate.
摘要翻译：压电谐振器包括安装在基板上的基板和带式能量捕获压电谐振器芯片。压电谐振器芯片包括压电芯片板和形成在压电芯片板的相对主表面上的一对电极图案。压电片片的一个主表面面向基板并与其平行，并且在主表面的与底板相对的每个端部上形成导电层。导电层的厚度大于电极图案的厚度，使得电极图案与基板分离。导电层直接安装在基板的导电部分上，以将电极图案和基板的导电部分电连接。

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