专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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。

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

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。

4. 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。

5. 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'）。

6. 发明授权

US4810965A Position detecting apparatus using a magnetic sensor and a closed magnetic circuit with non-uniform magnetic flux distribution 失效
标题翻译：位置检测装置使用磁传感器和具有不均匀磁通分布的封闭磁路
公开(公告)号：US4810965A
公开(公告)日：1989-03-07
申请号：US906027
申请日：1986-09-11
申请人： Yoshiro Fujiwara , Michiko Endo , Yuji Kojima , Noboru Wakatsuki , Akira Hirano , Kazunari Komenou
发明人： Yoshiro Fujiwara , Michiko Endo , Yuji Kojima , Noboru Wakatsuki , Akira Hirano , Kazunari Komenou
IPC分类号： G01D5/20 , G01B7/14 , G01R33/04 , H01L43/08
CPC分类号： G01D5/20
摘要： A position detector having a magnetic sensor for measuring linear or angular displacement, or detecting a position of a body without contact thereto. The detector has a closed circuit including magnets and yokes. The magnetic leakage flux which emanates from the inside surfaces of the yokes is utilized to detect the position of the body. The magnetic sensor is transferred along the inside surfaces of the yokes by a transferring circuit, which senses the magnetic field intensity of the leakage flux distributed thereon. This enables the detector to have a longer measuring range than that of a prior art detectors. An output signal is stable due to the shielding effect of the yokes. The magnetic closed circuit has many magnetic and mechanical configurations. For example, for the magnet, a permanent magnet and an electromagnet can be used. Further, improvements are proposed for enhancing the linearity of the output signal voltage with respect to the transferring distance of the sensing element and for compensating the offset drift of an amplifier or changing the coercive force of permanent magnets.
摘要翻译：一种位置检测器，具有用于测量线性或角位移的磁传感器，或者检测身体的位置而不与其接触。检测器具有包括磁体和轭的封闭电路。利用从轭的内表面发出的漏磁通来检测身体的位置。磁传感器通过传递电路沿着轭的内表面传递，传输电路感测分布在其上的漏磁通的磁场强度。这使得检测器具有比现有技术的检测器更长的测量范围。输出信号由于磁轭的屏蔽效应而稳定。磁闭环具有许多磁力和机械结构。例如，对于磁体，可以使用永磁体和电磁体。此外，提出了相对于感测元件的传送距离来增强输出信号电压的线性度并且用于补偿放大器的偏移漂移或改变永磁体的矫顽力的改进。

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

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。

9. 发明授权

US06271739B1 Surface-acoustic-wave device having an improved pass-band characteristic and an improved degree of freedom for setting input and output impedances 有权
标题翻译：表面声波装置具有改善的通带特性和提高设定输入和输出阻抗的自由度
公开(公告)号：US06271739B1
公开(公告)日：2001-08-07
申请号：US09363751
申请日：1999-07-30
申请人： Masanori Ueda , Gou Endoh , Osamu Kawachi , Yoshiro Fujiwara
发明人： Masanori Ueda , Gou Endoh , Osamu Kawachi , Yoshiro Fujiwara
IPC分类号： H03H964
CPC分类号： H03H9/6469 , H03H9/0038 , H03H9/0042 , H03H9/0061 , H03H9/1071 , H03H9/25 , H03H9/6436 , H03H9/6459 , H03H9/6466 , H03H9/6489
摘要： A surface acoustic wave device supported by a package body. At least one surface acoustic wave element having interdigital electrodes disposed on a propagation path of a surface acoustic wave on the piezoelectric substrate. These interdigital electrodes include an input-side interdigital electrode connected to a ground pad on the package body and an output-side interdigital electrode connected to another ground pad on the package body.
摘要翻译：由包装体支撑的表面声波装置。至少一个表面声波元件，其具有设置在压电基板上的表面声波的传播路径上的叉指电极。这些叉指电极包括连接到封装主体上的接地焊盘的输入侧交叉指状电极和连接到封装主体上的另一接地焊盘的输出侧叉指电极。

10. 发明授权

US6111481A Surface-acoustic-wave three interdigital electrodes with different numbers of finger pairs 有权
标题翻译：具有不同数量手指对的表面声波三叉指电极
公开(公告)号：US6111481A
公开(公告)日：2000-08-29
申请号：US363804
申请日：1999-07-30
申请人： Masanori Ueda , Gou Endoh , Osamu Kawachi , Yoshiro Fujiwara
发明人： Masanori Ueda , Gou Endoh , Osamu Kawachi , Yoshiro Fujiwara
IPC分类号： H01L41/09 , H03H9/00 , H03H9/10 , H03H9/145 , H03H9/25 , H03H9/64
CPC分类号： H03H9/6469 , H03H9/0038 , H03H9/0042 , H03H9/0061 , H03H9/1071 , H03H9/25 , H03H9/6436 , H03H9/6459 , H03H9/6466 , H03H9/6489
摘要： A double-mode surface-acoustic device having a piezoelectric substrate with two reflectors placed on the piezoelectric substrate and first through third interdigital electrodes placed on the substrate consecutively between the two reflectors. Each electrode containing first through third number of pairs of electrode fingers, respectively.
摘要翻译：一种双模表面声学装置，其具有压电基板，其具有放置在压电基板上的两个反射器和在两个反射器之间连续放置在该基板上的第一至第三指状电极。每个电极分别包含第一至第三对电极指。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式