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    • 2. 发明授权
    • Chip-type piezoelectric resonator and method for adjusting resonance frequency thereof
    • 片式压电谐振器及其谐振频率的调节方法
    • US06215229B1
    • 2001-04-10
    • US09310237
    • 1999-05-12
    • Hideaki KurodaMasaya WajimaRyuhei Yoshida
    • Hideaki KurodaMasaya WajimaRyuhei Yoshida
    • H03H917
    • H03H9/177H03H3/04H03H9/0561H03H9/1035H03H2003/0428
    • A capacitor-included, chip-type piezoelectric resonator allows minute and highly precise adjustment of electrostatic capacitance and the resonance frequency after production of the piezoelectric resonator by laminating a piezoelectric element and dielectric substrates. The resonator includes a piezoelectric substrate laminated with dielectric substrates and external electrodes disposed on the laminate body. A plurality of external electrodes are arranged to extend from the outer major surface of the first dielectric substrate to the outer major surface of the second dielectric substrate along first and second side surfaces disposed opposite to each other. On the outer major surface of the second dielectric substrate, at least one external electrode is divided into first and second electrode portions.
    • 包含电容器的芯片型压电谐振器通过层叠压电元件和电介质基板,能够在制造压电谐振器之后对静电电容和谐振频率进行微调和高度精确的调整。 谐振器包括层叠有电介质基板的压电基板和设置在层叠体上的外部电极。 多个外部电极布置成沿着彼此相对设置的第一和第二侧表面从第一电介质基板的外主表面延伸到第二电介质基板的外主表面。 在第二电介质基板的外主表面上,至少一个外电极被分成第一和第二电极部分。
    • 3. 发明授权
    • Piezoelectric vibration device and piezoelectric resonance component
    • 压电振动装置和压电谐振元件
    • US06362561B1
    • 2002-03-26
    • US09501086
    • 2000-02-09
    • Hideaki KurodaRyuhei Yoshida
    • Hideaki KurodaRyuhei Yoshida
    • H01L4104
    • H03H9/177H03H9/0547H03H9/1014
    • An energy-trapping piezoelectric vibration device generates a thickness shear mode and includes an elongated piezoelectric element having first and second longitudinally opposed ends, top and bottom surfaces provided between the first and second ends such that the top and bottom surfaces oppose each other, and beveled surfaces disposed at a vicinity of the first and second ends such that the thickness of the piezoelectric element gradually decreases towards the first and second ends, respectively. First and second vibration electrodes are disposed on the top surface and the bottom surface of the piezoelectric element, respectively. The first and second vibration electrodes are located at an approximate middle portion of the piezoelectric element so as to oppose each other with the piezoelectric element disposed therebetween, to define opposing portions which constitute a vibrator. A roughness of the beveled surfaces is greater than a roughness of a flat portion of the top and bottom surfaces of the piezoelectric substrate disposed beneath the vibration electrodes.
    • 能量捕获压电振动装置产生厚度剪切模式,并且包括具有第一和第二纵向相对端的细长压电元件,顶表面和底表面设置在第一和第二端之间,使得顶表面和底表面彼此相对,并且倾斜 表面设置在第一端和第二端附近,使得压电元件的厚度分别朝向第一端和第二端逐渐减小。 第一和第二振动电极分别设置在压电元件的顶表面和底表面上。 第一和第二振动电极位于压电元件的大致中间部分处以彼此相对的压电元件设置在它们之间,以限定构成振动器的相对部分。 倾斜表面的粗糙度大于设置在振动电极下方的压电基板的顶表面和底表面的平坦部分的粗糙度。
    • 5. 发明授权
    • Oscillation circuit
    • 振荡电路
    • US5399997A
    • 1995-03-21
    • US37259
    • 1993-03-26
    • Ryuhei Yoshida
    • Ryuhei Yoshida
    • H03H9/17H03B5/04H03B5/32
    • H03B5/04H03B5/32
    • A Colpitts-type oscillation circuit, employing a ceramic resonator vibrating in the energy trapping thickness shear slide mode is disclosed in which, an antiresonance frequency of the ceramic resonator has a negative temperature characteristic which is less step than that of its resonance frequency. Capacitance between terminals of the ceramic resonator is set so that an oscillation frequency (Fosc) of the oscillation circuit at the ordinary temperature is higher than a central frequency ((Fr+Fa)/2) of the ceramic resonator. Thus, it is possible to employ a ceramic resonator having a large bandwidth (.DELTA.F), thereby improving the temperature characteristic of the oscillation frequency.
    • 公开了一种使用以能量捕获厚度剪切滑动模式振动的陶瓷谐振器的Colpitts型振荡电路,其中陶瓷谐振器的反谐振频率具有比其谐振频率小的阶跃的负温度特性。 设定陶瓷谐振器的端子之间的电容,使得常温下的振荡电路的振荡频率(Fosc)高于陶瓷谐振器的中心频率((Fr + Fa)/ 2)。 因此,可以使用具有大带宽(DELTA F)的陶瓷谐振器,从而提高振荡频率的温度特性。
    • 6. 发明授权
    • Film production method
    • 电影制作方法
    • US08075832B2
    • 2011-12-13
    • US12348124
    • 2009-01-02
    • Ryuhei YoshidaShinji HikitaHiroki Sato
    • Ryuhei YoshidaShinji HikitaHiroki Sato
    • B29C71/00
    • B29C47/34B29C47/0021B29C47/0033B29C47/0057B29C47/0842B29C47/884B29L2007/002B29L2031/7644
    • A solution casting apparatus includes a drive roller as a conveying means. The drive roller conveys a polymer film peeled from a belt, the polymer film still containing a solvent. The drive roller has corrugation valleys and corrugation peaks formed on a peripheral surface along a circumferential direction of the drive roller. Each of the corrugation valleys and the corrugation peaks has a substantially semicircular cross section. The corrugation valleys and the corrugation peaks are disposed alternately in an axial direction of the drive roller. A pitch Pv between the corrugation valleys and a pitch Pm between the corrugation peaks are in the range of 0.01 to 2 mm, and a height Hv-m from a lowest point of the corrugation valley to a highest point of the corrugation peak is in the range of 0.01 to 1 mm. A curvature radius Rv of the corrugation valley and a curvature radius Rm of the corrugation peak are in the range of 0.1 to 0.5 mm.
    • 溶液浇铸装置包括作为输送装置的驱动辊。 驱动辊传送从带剥离的聚合物膜,聚合物膜仍含有溶剂。 驱动辊具有沿着驱动辊的圆周方向形成在外周表面上的波纹谷和波纹峰。 每个波纹谷和波纹峰具有基本上半圆形的横截面。 波纹谷和波纹峰在驱动辊的轴向上交替设置。 波纹谷之间的间距Pv和波纹峰之间的间距Pm在0.01至2mm的范围内,并且从波纹谷的最低点到波纹峰的最高点的高度Hv-m在 范围为0.01至1 mm。 波纹谷的曲率半径Rv和波纹峰的曲率半径Rm在0.1〜0.5mm的范围内。
    • 8. 发明授权
    • Piezoelectric resonator
    • 压电谐振器
    • US6163101A
    • 2000-12-19
    • US299492
    • 1999-04-26
    • Ryuhei YoshidaNobuhiro KitajimaKenichi Sakai
    • Ryuhei YoshidaNobuhiro KitajimaKenichi Sakai
    • H03H9/19H03H9/02H03H9/10H03H9/17
    • H03H9/1035H03H9/0207H03H9/0211H03H9/177
    • A piezoelectric resonator includes two sealing substrates, a seal portion, and an energy-trap type piezoelectric resonance element which is adapted to vibrate in a third harmonic of thickness extensional vibration. The piezoelectric resonance element includes a piezoelectric substrate and a pair of excitation electrodes, which are disposed on opposite major surfaces of the piezoelectric substrate. A portion of the piezoelectric substrate sandwiched by the excitation electrodes defines a vibrating portion. The sealing substrates each have a cavity formed therein and are attached onto the corresponding major surfaces of the piezoelectric substrate such that the cavities define a space for vibration. The seal portion is formed around the vibration space so as to damp leaking vibration. The vibrating portion is arranged such that the approximate center thereof is spaced from the approximate center of the vibration space as viewed along the major surfaces of the piezoelectric resonance element.
    • 压电谐振器包括两个密封基板,密封部分和适于以厚度延伸振动的三次谐波振动的能量陷阱型压电谐振元件。 压电谐振元件包括压电基片和一对激励电极,它们设置在压电基片的相对主表面上。 由激励电极夹持的压电基板的一部分限定振动部分。 密封基板各自具有形成在其中的空腔并且附着到压电基板的相应的主表面上,使得空腔限定用于振动的空间。 密封部分形成在振动空间周围以便阻止泄漏振动。 振动部分被布置成使得其大致中心与沿着压电谐振元件的主表面观察的振动空间的大致中心间隔开。
    • 9. 发明授权
    • Composite type piezoelectric component
    • 复合型压电元件
    • US5345136A
    • 1994-09-06
    • US66321
    • 1993-05-21
    • Ryoji TakagiMakoto MiyaderaTakashi YamamotoRyuhei Yoshida
    • Ryoji TakagiMakoto MiyaderaTakashi YamamotoRyuhei Yoshida
    • H03H9/05H01L41/00
    • H03H9/0528H03H9/0547
    • A composite type piezoelectric component has electrodes formed on both major surfaces of a piezoelectric device. These electrodes are electrically connected and mechanically attached to two terminals having top ends shaped so as to receive and support both ends of the piezoelectric device. A capacitor is constructed with a pair of divided electrodes formed on one major surface of a dielectric substrate and another such pair on the other major surface thereof. The capacitor is attached to the two terminals by joining the divided electrodes on one of the major surfaces of the capacitor to the top ends of the terminals so as to leave a clearance between the capacitor and the piezoelectric device. A third terminal is connected to both of the other pair of divided electrodes. These two pairs of electrodes are substantially equally shaped such that directionality is not critical when the capacitor is attached to the terminals.
    • 复合型压电元件具有形成在压电器件的两个主表面上的电极。 这些电极电连接并且机械地附接到具有顶端的两个端子,其端部被成形为接收和支撑压电装置的两端。 电容器由在电介质基板的一个主表面上形成的一对分开的电极构成,另一个在另一个主表面上形成。 电容器通过将电容器的一个主表面上的分隔电极连接到端子的顶端而连接到两个端子,以便在电容器和压电器件之间留有间隙。 第三端子连接到另一对分开的电极。 这两对电极基本相同的形状,使得当电容器附接到端子时方向性不是关键的。