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    • 91. 发明授权
    • Thrust balance device
    • 推力平衡装置
    • US06193462B1
    • 2001-02-27
    • US09295162
    • 1999-04-20
    • Yasushi Kubota
    • Yasushi Kubota
    • F01D304
    • F04D29/2266F04D29/0416
    • A flow channel and pressure equalizing sections introduce a fluid having substantially no angular momentum into a thrust balance chamber of a thrust balance device. The introduction of this fluid reduces the angular momentum of the fluid in the thrust balance chamber, facilitating the discharge of fluid out of the thrust balance chamber through a variable orifice. The thrust balance chamber exerts a variable pressure onto a rear surface of an impeller of a centrifugal pump. This pressure prevents significant displacement of the impeller during pump operation. The result is a centrifugal pump having good thrust balance properties regardless of flow rate and impeller speed.
    • 流动通道和压力平衡部分将基本上没有角动量的流体引入推力平衡装置的推力平衡室中。 该流体的引入减少了推力平衡室中的流体的角动量,便于流体通过可变孔排出推力平衡室。 推力平衡室对离心泵的叶轮的后表面施加可变的压力。 这种压力可防止在泵运行期间叶轮的显着位移。 结果是离心泵具有良好的推力平衡性能,不管流速和叶轮速度如何。
    • 93. 发明授权
    • Signal amplifier, signal amplifier circuit, signal line drive circuit
and image display device
    • 信号放大器,信号放大电路,信号线驱动电路和图像显示装置
    • US6054976A
    • 2000-04-25
    • US4327
    • 1998-01-08
    • Yasushi KubotaKenichi KatohHiroshi Yoneda
    • Yasushi KubotaKenichi KatohHiroshi Yoneda
    • G09G3/20G09G3/36G11C19/00H03F1/30H03G1/00H04N5/14H04N5/16H04N5/66H04N5/68H04N5/70
    • G09G3/2011G09G3/3688G11C19/00H03F1/303H03G1/00H04N5/68H04N5/148H04N5/16H04N5/66H04N5/70
    • An image display device includes an operational amplifier, a signal amplifier provided with a condenser for setting a gain of the operational amplifier, a signal amplifier circuit having such signal amplifier or a buffer amplifier, the signal amplifier circuit being provided with an offset adjusting function, and a data signal line drive circuit having a signal amplifier or a signal line drive circuit. The described arrangement enables the gain of the signal amplifier to be set by a capacitance of the condenser, thereby providing a signal amplifier circuit which permits the gain to be set much more precisely as compared to the conventional signal amplifier circuits even when adopting a signal amplifier formed on a semiconductor thin film such as a polycrystalline silicone thin film. The arrangement also provides a signal amplifier circuit which permits a voltage in the same level as a voltage of the input signal to be outputted. Furthermore, the arrangement provides high quality data signal line drive circuit and the image display device.
    • 图像显示装置包括运算放大器,设置有用于设置运算放大器的增益的电容器的信号放大器,具有这种信号放大器的信号放大器电路或缓冲放大器,信号放大器电路具有偏移调整功能, 以及具有信号放大器或信号线驱动电路的数据信号线驱动电路。 所描述的布置使得信号放大器的增益可以由电容器的电容设置,从而提供信号放大器电路,其允许与传统的信号放大器电路相比更加精确地设置增益,即使采用信号放大器 形成在诸如多晶硅薄膜的半导体薄膜上。 该装置还提供一种信号放大器电路,其允许输出与输入信号的电压相同电平的电压。 此外,该装置提供高质量的数据信号线驱动电路和图像显示装置。
    • 95. 发明授权
    • Scanning circuit and image display apparatus
    • 扫描电路和图像显示装置
    • US5892495A
    • 1999-04-06
    • US725314
    • 1996-10-02
    • Tamotsu SakaiKenichi KatohYasushi Kubota
    • Tamotsu SakaiKenichi KatohYasushi Kubota
    • G02F1/133G09G3/20G09G3/36G09G5/00
    • G09G3/3677G09G3/3688G09G2310/06G09G3/3648
    • A scanning circuit is provided with a plurality of address lines and AND circuits. The address lines respectively supply bit signals constituting an address signal and inverted bit signals, and each AND circuit conducts a logical operation on a predetermined number of bit signals and inverted bit signals selected from the bit signals and inverted bit signals supplied from the address lines. The AND circuits are connected to the address lines so that only one bit is switched when the address signal carries. Furthermore, a frequency of the least significant bit of the address signal is set to 1/4 of the dot frequency, while the two bits at the high end are set to have the same frequency and a phase difference of 90.degree. each other. With the described arrangement, a phase shift is prevented from occurring to an outputted signal when the address signal carries. Furthermore, the arrangement ensures that the scanning circuit can be realized in a simple circuit arrangement and operates at low frequencies, thereby ensuring a decrease in power consumption.
    • 扫描电路设有多个地址线和“与”电路。 地址线分别提供构成地址信号和反相位信号的位信号,并且每个AND电路根据从地址线提供的位信号和反转位信号中选择的预定数量的位信号和反相位信号进行逻辑运算。 AND电路连接到地址线,使得只有一个位在地址信号传输时被切换。 此外,地址信号的最低有效位的频率被设置为点频的+ E,fra 1/4 + EE,而高端的两位被设置为具有相同的频率和相位差 90°对方。 利用所述的布置,当地址信号携带时,防止对输出信号发生相移。 此外,该布置确保了扫描电路可以以简单的电路布置实现并且在低频下操作,从而确保功耗的降低。
    • 96. 发明授权
    • Image display device
    • 图像显示装置
    • US5754155A
    • 1998-05-19
    • US591281
    • 1996-01-25
    • Yasushi KubotaIchiro Shiraki
    • Yasushi KubotaIchiro Shiraki
    • G02F1/133G09G3/20G09G3/36
    • G09G3/3688G09G3/3648G09G3/3696G09G2300/0408G09G2320/041G09G2330/02G09G3/2011
    • In an image display device, a reference voltage generating circuit of a power supply circuit, which applies power supply voltages V.sub.GH and V.sub.GL to a scan signal line driving circuit, is formed on a substrate where picture elements for display are formed, and a transistor which composes the reference voltage generating circuit has the approximately same threshold voltage as a picture element transistor TR.sub.(PIX) which composes the picture elements for display. As a result, the power supply voltages V.sub.GH and V.sub.GL to the scan signal line driving circuit automatically obtain which is optimized for a characteristic of the transistor TR(PIX) which composes the picture elements for display. Therefore, the power supply voltages V.sub.GH and V.sub.GL do not require adjustment per picture element array or every time when the usage environment is changed. As a result, the cost of adjustment is reduced and convenience of the usage is improved.
    • 在图像显示装置中,在扫描信号线驱动电路上施加电源电压VGH,VGL的电源电路的基准电压产生电路形成在形成有显示用象素的基板上, 组成参考电压产生电路具有与组成用于显示的像素的像素晶体管TR(PIX)大致相同的阈值电压。 结果,扫描信号线驱动电路的电源电压VGH和VGL自动获得针对组成用于显示的像素的晶体管TR(PIX)的特性而被优化。 因此,电源电压VGH和VGL不需要对每个图像元素阵列进行调整,或者每当使用环境改变时。 结果,降低了调整成本,提高了使用的便利性。
    • 97. 发明授权
    • Image display device with plural data driving circuits for driving the
display at different voltage magnitudes and polarity
    • 图像显示装置具有用于以不同的电压幅度和极性驱动显示器的多个数据驱动电路
    • US5748165A
    • 1998-05-05
    • US363017
    • 1994-12-23
    • Yasushi KubotaHiroshi YonedaKenichi Katoh
    • Yasushi KubotaHiroshi YonedaKenichi Katoh
    • G09G3/20G09G3/36G09G3/22
    • G09G3/2011G09G3/3614G09G3/3648G09G3/3655G09G3/3659G09G3/3677G09G3/3688G09G2310/0224G09G2310/027G09G2310/0297G09G2330/021
    • In order to sufficiently save the power consumption and to lower the withstand voltage of elements, by having one data signal line per one row of pixels and one scanning signal line per one line of pixels, the polarity of data written in the data signal line is varied each one field period. The power source magnitude of the scanning signal lines to be written is further varied each one field period. Specifically, on opposing sides of the pixel array, data signal line driving circuits are provided. The data signal line driving circuits supply voltages of different magnitude and polarity. Adjoining pairs of data signal lines are connected to each of the data signal line driving circuits with analog switches. In a certain display period, such as every field period, the analog switches each select one of a pair of adjacent data signal lines. In the next display period, the reverse selection is made. This suppresses the charge and discharge current of the data signal lines, and thus the operating voltages of the data signal line driving circuits may be lowered. As a result, the power consumption of the image display device may be saved, and the withstand voltage of the constituent elements can be lowered. Thus, manufacturing cost and operating cost can be reduced.
    • 为了充分节省功耗并降低元件的耐受电压,通过每一行象素具有一行像素一条数据信号线和每行像素一条扫描信号线,写入数据信号线的数据的极性为 每个场地都有所变化。 要写入的扫描信号线的电源幅度在每个场周期中进一步变化。 具体地说,在像素阵列的相对侧设置有数据信号线驱动电路。 数据信号线驱动电路提供不同大小和极性的电压。 通过模拟开关将数据信号线对连接到数据信号线驱动电路。 在某个显示周期(例如每个场周期)中,模拟开关每个选择一对相邻数据信号线中的一个。 在下一个显示周期中,进行相反的选择。 这抑制了数据信号线的充放电电流,从而可能降低数据信号线驱动电路的工作电压。 结果,可以节省图像显示装置的功耗,并且可以降低组成元件的耐受电压。 因此,可以降低制造成本和运行成本。
    • 99. 发明申请
    • OPTICALLY ACTIVE AMMONIUM SALT COMPOUND, PRODUCTION INTERMEDIATE THEREOF, AND PRODUCTION METHOD THEREOF
    • US20100041881A1
    • 2010-02-18
    • US11817585
    • 2006-03-03
    • Keiji MaruokaYasushi Kubota
    • Keiji MaruokaYasushi Kubota
    • C07D487/10C07C25/18C07C43/205C07D223/14
    • B01J31/0271C07B53/00C07B2200/07C07C22/04C07C25/18C07C33/46C07C43/225C07D223/18C07D487/10
    • An optically active quaternary ammonium salt compound represented by formula (1), wherein R1 represents a halogen, a C1-8 alkyl which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8 heteroaryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted and which is linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted; R2 and R21 each independently represents hydrogen, halogen, nitro, a C1-8 alkyl which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted and which is linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted; one of combinations of R1 and R21, and R2 and R21, may bond to form a C1-6 alkylene which is optionally substituted, a C1-6 alkylenemonooxy which is optionally substituted, or a C1-6 alkylenedioxy which is optionally substituted; R3 and R4 each independently represents hydrogen, a C6-14 aryl which is optionally substituted, a C3-8 heteroaryl which is optionally substituted, or a C7-16 aralkyl which is optionally substituted, with a proviso that R3 and R4 are not hydrogen at the same time; R5 represents hydrogen, halogen, a C1-8 alkyl which is optionally substituted and which is linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, or a C2-8 alkynyl which is optionally substituted; R6 represents halogen, a C1-8 alkyl which is optionally substituted and which is linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, or a C2-8 alkynyl which is optionally substituted, and R5 and R6 may bond to form an aromatic ring which is optionally substituted; ring A and ring B do not have a same substituent at the same time; symbols * and ** represent an optical activity having an axial chirality; and X−1 represents an anion.