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1. 发明授权

US5229680A Piezoelectric transformer using single crystal of LiNbO.sub.3 失效
标题翻译：使用LINBO3单晶压电变压器
公开(公告)号：US5229680A
公开(公告)日：1993-07-20
申请号：US761049
申请日：1991-09-18
申请人： Masuji Sato , Noboru Wakatsuki , Kiyoshi Nakamura , Yoshinori Adachi
发明人： Masuji Sato , Noboru Wakatsuki , Kiyoshi Nakamura , Yoshinori Adachi
IPC分类号： H01L41/107
CPC分类号： H01L41/107
摘要： A piezoelectric transformer includes a substrate of piezoelectric material, preferably a single crystal of LiNbO.sub.3. The substrate is uniformly polarized in a selected direction thereof and vibrated in a direction of the length thereof. An input voltage is applied across both sides of a portion of the substrate in a direction of the thickness thereof and thus excites a vibration by way of piezoelectric effect. Thereby another voltage is caused in the direction of the thickness of the substrate in a portion other than the portion to which the input voltage is applied, and taken out as an output voltage. As a result, it is possible to decrease the output impedance to obtain a large load current and thus fully heighten a step-up ratio of the piezoelectric transformer.

2. 发明授权

US5371430A Piezoelectric transformer producing an output A.C. voltage with reduced distortion 失效
标题翻译：压电变压器产生输出交流电压，具有减小的失真
公开(公告)号：US5371430A
公开(公告)日：1994-12-06
申请号：US57500
申请日：1993-05-06
申请人： Masuji Sato , Noboru Wakatsuki , Masanori Ueda , Hiroshi Hasegawa
发明人： Masuji Sato , Noboru Wakatsuki , Masanori Ueda , Hiroshi Hasegawa
IPC分类号： H01L41/107 , H01L41/08
CPC分类号： H01L41/107
摘要： A piezoelectric transformer comprises a piezoelectric substrate carrying thereon an input electrode structure provided on an upper major surface of the piezoelectric substrate for receiving an a.c. voltage for causing an excitation of an elastic wave in the substrate such that the elastic wave propagates through the substrate in a longitudinal direction, an output electrode structure provided on a lower major surface of the piezoelectric substrate for producing an output a.c. voltage by converting the elastic wave into an electric voltage, wherein the input electrode structure and the output electrode structure have a periodical structure in the longitudinal direction with a pitch corresponding to a wavelength of the elastic wave, and wherein at least one of the first and second electrode structures extend in the longitudinal direction from the first longitudinal edge to the second longitudinal edge substantially continuously.
摘要翻译：一种压电变压器包括一个压电基板，其上带有一个输入电极结构，该输入电极结构设置在压电基板的上主表面上，用于接收一个直流电压。使弹性波沿着纵向传播通过基板的输出电压结构的输出电极结构的输出电压结构的输出电极结构。通过将弹性波转换成电压，其中，所述输入电极结构和所述输出电极结构在纵向方向上具有对应于所述弹性波的波长的间距的周期性结构，并且其中，所述第一和第二电极结构基本上连续地从第一纵向边缘延伸到第二纵向边缘。

3. 发明授权

US5251049A Reflection type active matrix liquid crystal apparatus 失效
标题翻译：反射型有源矩阵液晶装置
公开(公告)号：US5251049A
公开(公告)日：1993-10-05
申请号：US717066
申请日：1991-06-18
申请人： Masuji Sato , Akira Tanaka , Noboru Wakatsuki
发明人： Masuji Sato , Akira Tanaka , Noboru Wakatsuki
IPC分类号： G02F1/137 , G02F1/139 , G02F1/133
CPC分类号： G02F1/1393 , G02F2203/02
摘要： A reflection type liquid crystal apparatus comprising a liquid crystal panel (26) composed of a pair of first and second opposed plates (30, 32) for accommodating a liquid crystal (34) therebetween. A reflecting layer (28) is provided in the inner surface of the second plate, and the first plate is transparent. A common electrode (36) is provided in the first plate, and picture electrodes (38) are located in the second plate. A beam splitter (24) is located in front of the liquid crystal panel (26) for supplying polarized light to the first plate and for selectively transmitting polarized light emerging from the liquid crystal panel (24). The liquid crystal (34) comprises a nematic liquid crystal material having a positive birefringence and arranged in a homogeneous orientation with a constant director (n). This arrangement being such that incident polarized light is propagated in the liquid crystal in a double refraction mode with a first birefringence value and the emerging polarized light thereof is substantially transmitted by the second polarizer means (24) when a voltage is not applied to the liquid crystal; and incident polarized light is propagated in the liquid crystal in a double refraction mode with a second birefringence value smaller than the first birefringence value and the emerging polarized light thereof is not substantially transmitted by the second polarizer means (24) when a voltage is applied to the liquid crystal.

4. 发明授权

US5424602A Piezoelectric transformer showing a reduced input impedance and step-up/step-down operation for a wide range of load resistance 失效
标题翻译：压电变压器显示减小的输入阻抗和升压/降压操作，适用于宽范围的负载电阻
公开(公告)号：US5424602A
公开(公告)日：1995-06-13
申请号：US111741
申请日：1993-08-25
申请人： Masuji Sato , Noboru Wakatsuki , Masanori Ueda , Hiroshi Hasegawa
发明人： Masuji Sato , Noboru Wakatsuki , Masanori Ueda , Hiroshi Hasegawa
IPC分类号： H01L41/107 , H01L41/08
CPC分类号： H01L41/107
摘要： A piezoelectric transformer comprises a piezoelectric substrate extending in a first direction, a first electrode structure provided on the substrate for exciting an elastic wave propagating through the substrate in the first direction as a result of the piezoelectric transverse effect, and a second electrode structure provided on the substrate for converting the elastic wave to an electric voltage, wherein the first electrode group occupies a first area on the substrate while the second electrode group occupies a second area on the substrate.
摘要翻译：压电变压器包括沿第一方向延伸的压电基片，设置在基板上的第一电极结构，用于激发由于压电横向效应而在第一方向上传播通过基板的弹性波;以及第二电极结构，用于将弹性波转换成电压的基板，其中第一电极组占据基板上的第一区域，而第二电极组占据基板上的第二区域。

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

US4420730A Surface acoustic wave filter 失效
标题翻译：表面声波滤波器
公开(公告)号：US4420730A
公开(公告)日：1983-12-13
申请号：US314430
申请日：1981-10-23
申请人： Noboru Wakatsuki , Yuji Kojima , Masaaki Ono
发明人： Noboru Wakatsuki , Yuji Kojima , Masaaki Ono
IPC分类号： H03H3/08 , H03H9/02 , H03H9/145 , H03H9/25 , H03H9/64 , H03H9/72 , H03H9/76 , H03H9/70
CPC分类号： H03H9/76 , H03H9/02795 , H03H9/1452 , H03H9/1455 , H03H9/14573 , H03H9/6479 , H03H9/6496 , H03H9/72 , H03H9/02992 , H03H9/14547
摘要： A surface acoustic wave filter which comprises: a substrate of piezoelectric material; a multistrip coupler for changing the track of a signal comprising a plurality of parallel conductive strips; at least two transducers disposed on one side of the multistrip coupler; at least another two transducers disposed on the other side of the multistrip coupler. The latter two transducers facing the former two transducers. One pair of the transducers which face each other through the multistrip coupler constitutes input transducers while the other pair of the transducers constitutes output transducers.
摘要翻译：一种表面声波滤波器，包括：压电材料的基板; 用于改变包括多个平行导电条的信号的轨迹的多段耦合器; 至少两个换能器设置在所述多段耦合器的一侧上; 至少另外两个换能器设置在多段耦合器的另一侧上。后两个传感器面对前两个传感器。通过多段耦合器彼此面对的一对换能器构成输入换能器，而另一对换能器构成输出换能器。

7. 发明申请

US20060128177A1 Electric contact device 失效
公开(公告)号：US20060128177A1
公开(公告)日：2006-06-15
申请号：US11281949
申请日：2005-11-18
申请人： Noboru Wakatsuki , Yu Yonezawa , Yoshio Satoh , Tadashi Nakatani , Tsutomu Miyashita
发明人： Noboru Wakatsuki , Yu Yonezawa , Yoshio Satoh , Tadashi Nakatani , Tsutomu Miyashita
IPC分类号： H05K1/00
CPC分类号： H01H9/40 , H01H1/0036 , H01H9/42
摘要： An electrical contact device (X1) includes a first contactor with contact portions (C1, C2) and a second contactor with contact portions (C3, C4). The device (X1) also includes an electrical circuit having a branch path (YA) provided by the contact portions (C1, C3) and a branch path (YB) provided by the contact portions (C2, C4). When closed, the branch path (YA) has a smaller resistance, and the branch path (YB) a greater resistance. In a closing operation, the first and second contactors approach each other. Then the contact portion (C1) and the contact portion (C3) contact with each other after the contact portion (C2) and the contact portion (C4) contact with each other. In an opening operation, the first and second contactors separate from each other. Then the contact portion (C1) and the contact portion (C3) separate after the contact portion (C2) and the contact portion (C4) separate.

8. 发明授权

US07053739B2 Electrical contacting device and method of making the same 有权
标题翻译：电接触装置及其制造方法
公开(公告)号：US07053739B2
公开(公告)日：2006-05-30
申请号：US10725573
申请日：2003-12-03
申请人： Noboru Wakatsuki , Yu Yonezawa , Yoshio Satoh , Tadashi Nakatani , Tsutomu Miyashita
发明人： Noboru Wakatsuki , Yu Yonezawa , Yoshio Satoh , Tadashi Nakatani , Tsutomu Miyashita
IPC分类号： H01H9/30
CPC分类号： H01H9/42 , H01H1/0036 , H01H9/40 , H01H2001/0057
摘要： An electrical contacting device includes a plurality of current paths connected in parallel to each other, and a plurality of electrical contact points each having a first contact and a second contact that are mechanically opened and closed. Each current path is provided with a corresponding one of the contact points. For prevention of the occurrence of arc discharge at the contact points, each current path has its electrical characteristics adjusted in order not to allow the passage of the minimum discharge current.
摘要翻译：电接触装置包括彼此并联连接的多个电流路径，以及多个电接触点，每个电接触点具有机械地打开和关闭的第一接触和第二接触。每个电流路径都设有相应的一个接触点。为了防止在接触点处发生电弧放电，每个电流路径的电特性被调整以便不允许最小放电电流通过。

9. 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。

10. 发明授权

US4967598A Acceleration sensor 失效
标题翻译：加速度传感器
公开(公告)号：US4967598A
公开(公告)日：1990-11-06
申请号：US233428
申请日：1988-08-18
申请人： Noboru Wakatsuki , Shigemi Kurashima , Nobuyoshi Shimizu , Michiko Endoh , Akira Tanaka
发明人： Noboru Wakatsuki , Shigemi Kurashima , Nobuyoshi Shimizu , Michiko Endoh , Akira Tanaka
IPC分类号： G01P15/08 , G01P15/105
CPC分类号： G01P15/105 , G01P15/0802 , G01P2015/0817 , Y10S73/03
摘要： An acceleration sensor including a cantilever beam having a free end to which a permanent magnet is attached. A pair of magnetic sensors, each comprising a barber-pole type magnetoresistive sensing element, is arranged in symmetrically spaced and opposed relationship and in a common plane extending parallel to the magnetic flux of the permanent magnet with respect to respective, opposite sides of the magnet. The cantilever is bent and the magnet is moved accordingly in response to an acceleration force, which is detected as outputs from the magnetoresistive sensing elements.

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