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    • 6. 发明授权
    • Rubber composition and pneumatic tire
    • 橡胶组合物和充气轮胎
    • US09284438B2
    • 2016-03-15
    • US14361206
    • 2012-06-26
    • Daisuke Sato
    • Daisuke Sato
    • C08K3/36B60C1/00C08L9/06C08L15/00C08C19/44
    • C08L9/06B60C1/00C08C19/44C08K3/36C08L15/00C08L2205/025C08L2205/03C08L2205/035C08L2666/08Y02T10/862
    • Provided are a rubber composition achieving balanced improvements in fuel economy, wet-grip performance, abrasion resistance, and handling stability, and a pneumatic tire including the composition. The rubber composition includes a rubber component including at least 95% by mass of conjugated diene polymers having a Tg of −75-0° C. and a Mw of 1.5×105-1.5×106, the rubber component (100% by mass) including 5-65% by mass of SBR (A) having a styrene content of at least 5% by mass but less than 15% by mass and a vinyl bond content of 10-70 mol %, and 20-75% by mass of SBR (B) having a styrene content of at least 15% by mass but less than 30% by mass and a vinyl bond content of 10-70 mol %, the composition including, per 100 parts by mass of the rubber component, 1-30 parts by mass of a low-molecular-weight conjugated diene polymer having a Tg of −75-0° C. and a Mw of at least 1.0×103 but less than 1.5×105, and 10-150 parts by mass of silica having a N2SA of 40-400 m2/g, the composition having a tan δ peak temperature of at least −20° C.
    • 提供了能够均衡地提高燃料经济性,湿抓地性能,耐磨性和操作稳定性的橡胶组合物,以及包含该组合物的充气轮胎。 橡胶组合物包括橡胶组分,其包含至少95质量%的Tg为-75-0℃,Mw为1.5×10 5 -1.5×10 6的共轭二烯聚合物,橡胶组分(100质量%) 包括苯乙烯含量为5质量%以上且15质量%以下且乙烯基含量为10〜70摩尔%的SBR(A)为5〜65质量%,以及20〜75质量% SBR(B)的苯乙烯含量为15质量%以上且30质量%以下,乙烯基含量为10-70摩尔%,该组合物包含:相对于100重量份的橡胶成分, 30质量份Tg为-75-0℃,Mw为1.0×10 3以上且小于1.5×10 5的低分子量共轭二烯系聚合物和10〜150质量份的二氧化硅 具有40-400m 2 / g的N 2 SA,该组合物具有至少-20℃的tanδ峰值温度。
    • 7. 发明授权
    • Motor drive method, motor drive device, and brushless motor
    • 电机驱动方式,电机驱动装置,无刷电机
    • US09225273B2
    • 2015-12-29
    • US14000237
    • 2012-03-13
    • Daisuke Sato
    • Daisuke Sato
    • H02P3/00H02P6/06H02P6/14
    • H02P6/06H02P6/15
    • A method for driving a motor including a stator wound with a coil and a rotor rotatably disposed and confronting the stator, whereby the coil is energized and driven at energizing timing of which phase is determined based on an advance angle amount to rotate the rotor. At this time, it is determined whether or not a power supply voltage supplied to the motor exceeds a predetermined voltage, and when it is determined that the power supply voltage exceeds the predetermined voltage, the advance angle amount is changed to increase a current amount flowing through the coil, for energizing and driving the coil.
    • 一种用于驱动电动机的方法,该电动机包括具有线圈的定子和可旋转地设置并面对定子的转子,由此线圈在通电转矩定时基于提前角量确定的激励定时被激励和驱动。 此时,确定供给电动机的电源电压是否超过规定电压,当判断为电源电压超过规定电压时,改变提前角量,增加电流量 通过线圈,用于激励和驱动线圈。
    • 8. 发明授权
    • Motor driving device and brushless motor
    • 电机驱动装置和无刷电机
    • US09203339B2
    • 2015-12-01
    • US14003059
    • 2012-08-07
    • Daisuke Sato
    • Daisuke Sato
    • H02P27/04H02P29/00H02P27/08H02P6/06B60L11/12
    • H02P29/00B60L11/12H02P6/06H02P27/08H02P2201/00Y02T10/642Y02T10/7077
    • A motor driving device according to the present invention includes: a PWM duty ratio detecting unit for detecting a target rotational speed based on a duty ratio of a PWM signal input from a host system; a PWM period detecting unit for detecting a period of the PWM signal; a PWM period error calculating unit for calculating an error between a PWM period output from the PWM period detecting unit and a PWM period previously set as a reference calculated by using the operational clock generator; a position detecting sensor for detecting a permanent magnet of the rotor; and an actual rotational speed calculating unit for calculating an actual rotational speed of the rotor by using a signal output from the position detecting sensor. The present motor driving device controls a speed while correcting the actual rotational speed based on the PWM period error.
    • 根据本发明的电动机驱动装置包括:PWM占空比检测单元,用于基于从主机系统输入的PWM信号的占空比来检测目标转速; PWM周期检测单元,用于检测PWM信号的周期; PWM周期误差计算单元,用于计算从PWM周期检测单元输出的PWM周期与预先设置为通过使用操作时钟发生器计算的基准的PWM周期之间的误差; 用于检测转子的永磁体的位置检测传感器; 以及实际转速计算单元,用于通过使用从位置检测传感器输出的信号来计算转子的实际转速。 本电动机驱动装置根据PWM周期误差来校正实际转速。
    • 9. 发明授权
    • Plugs for carburetors
    • 化油器插头
    • US09022363B2
    • 2015-05-05
    • US13551056
    • 2012-07-17
    • Noriyu NagataHidenori SasakiDaisuke Sato
    • Noriyu NagataHidenori SasakiDaisuke Sato
    • B01D47/02F02M19/06B21D53/84
    • F02M19/06B21D53/84Y10T29/49938
    • In accordance with one implementation, a carburetor includes a body having a fluid passage formed therein and a counterbore located along the fluid passage. The counterbore has a first sealing surface and a central axis, and the body further includes a second sealing surface located radially closer to the central axis than is the first sealing surface. The carburetor also includes a plug affixed to the body at the counterbore and in contact with both of the first and second sealing surfaces. Engagement of the plug with the two sealing surfaces may improve the connection between the plug and carburetor body. In at least some implementations, the plug may be held in place without aid of an adhesive or other secondary connector or connection aid.
    • 根据一个实施方式,化油器包括其中形成有流体通道的主体和沿着流体通道定位的沉孔。 沉孔具有第一密封表面和中心轴线,并且主体还包括位于比第一密封表面径向更靠近中心轴线的第二密封表面。 化油器还包括在沉孔处固定到主体并与第一和第二密封表面两者接触的塞子。 插头与两个密封面的接合可以改善塞子和化油器体之间的连接。 在至少一些实施方案中,插头可以在没有粘合剂或其它次要连接器或连接辅助件的帮助下被保持就位。