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    • 3. 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。
    • 4. 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。
    • 6. 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。
    • 7. 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。
    • 9. 发明授权
    • Piezoelectric resonator and manufacturing method thereof
    • 压电谐振器及其制造方法
    • US06798116B2
    • 2004-09-28
    • US10323660
    • 2002-12-20
    • Ryuhei YoshidaKenichi Sakai
    • Ryuhei YoshidaKenichi Sakai
    • H01L4108
    • H01L41/187H03H3/02
    • A method for producing an energy trap piezoelectric resonator which operates in a thickness longitudinal vibration mode and which includes a piezoelectric member and first and second vibrating electrodes disposed on respective major surfaces of the piezoelectric member, involves the use of a piezoelectric material having an R value and an A value which are selected such that Qe=C/(R×A), where R and A are the average pore size in micrometers and the porosity in percent of the piezoelectric member, respectively. Here, Qe is a value at a frequency to be used and C is a constant that is determined by the piezoelectric material of the piezoelectric member. An energy trap, thickness longitudinal piezoelectric resonator produced by this method has a sufficiently high response to a vibration mode to be used, without any limitation on the type of piezoelectric material and size of the piezoelectric member and the frequency to be used.
    • 一种用于制造以厚度纵向振动模式操作并且包括压电构件和设置在压电构件的各个主表面上的第一和第二振动电极的能量陷阱压电谐振器的方法,包括使用具有R值的压电材料 和选择为Qe = C /(RxA)的A值,其中R和A分别是微米的平均孔径和压电元件的孔隙率。 这里,Qe是要使用的频率的值,C是由压电构件的压电材料确定的常数。 通过该方法制造的能量阱,厚度纵向压电谐振器对所使用的振动模式具有足够高的响应,对压电材料的类型和压电元件的尺寸以及使用的频率没有任何限制。