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    • 3. 发明授权
    • Position detecting apparatus
    • 位置检测装置
    • US08664943B2
    • 2014-03-04
    • US12831625
    • 2010-07-07
    • Ichiro Okada
    • Ichiro Okada
    • G01B7/14
    • G01R33/07G01D5/145G01D5/24438
    • The present invention provides a single component implementing highly precise pulse detection for rotational or liner position detecting apparatuses for jog dials and mechanical products. Focusing on the fact that the phase difference between the magnetic fields in circumferential and radial directions generated by a magnetized ring is precisely 90 degrees, a position detecting apparatus of the present invention includes two Hall elements placed at a distance; a protective film provided on magnetic sensitive portions of the two Hall elements to cover the magnetic sensitive portions; a thin-film magnetic plate placed on the protective film to cover the magnetic sensitive portions of the two Hall elements; and further a processing circuit calculating the sum and difference of the signals from the two Hall elements to generate signals having an accurate phase difference of 90 degrees. The position detecting apparatus can therefore detect the rotation direction and precise rotation angle.
    • 本发明提供了用于微动拨盘和机械产品的旋转或线性位置检测装置的高精度脉冲检测的单个部件。 针对由磁化环产生的圆周方向和径向方向上的磁场的相位差精确地为90度这样的事实,本发明的位置检测装置包括两个远离放置的霍尔元件; 设置在所述两个霍尔元件的磁敏部分上以覆盖所述感光部分的保护膜; 放置在保护膜上以覆盖两个霍尔元件的磁敏部分的薄膜磁性板; 以及进一步计算来自两个霍尔元件的信号的和和差的处理电路,以产生具有90度的精确相位差的信号。 因此,位置检测装置可以检测旋转方向和精确的旋转角度。
    • 5. 发明申请
    • POSITION DETECTING APPARATUS
    • 位置检测装置
    • US20120007589A1
    • 2012-01-12
    • US12831625
    • 2010-07-07
    • Ichiro Okada
    • Ichiro Okada
    • G01B7/30G01R33/07
    • G01R33/07G01D5/145G01D5/24438
    • The present invention provides a single component implementing highly precise pulse detection for rotational or liner position detecting apparatuses for jog dials and mechanical products. Focusing on the fact that the phase difference between the magnetic fields in circumferential and radial directions generated by a magnetized ring is precisely 90 degrees, a position detecting apparatus of the present invention includes two Hall elements placed at a distance; a protective film provided on magnetic sensitive portions of the two Hall elements to cover the magnetic sensitive portions; a thin-film magnetic plate placed on the protective film to cover the magnetic sensitive portions of the two Hall elements; and further a processing circuit calculating the sum and difference of the signals from the two Hall elements to generate signals having an accurate phase difference of 90 degrees. The position detecting apparatus can therefore detect the rotation direction and precise rotation angle.
    • 本发明提供了用于微动拨盘和机械产品的旋转或线性位置检测装置的高精度脉冲检测的单个部件。 针对由磁化环产生的圆周方向和径向方向上的磁场的相位差精确地为90度的事实,本发明的位置检测装置具有两个远离放置的霍尔元件, 设置在所述两个霍尔元件的磁敏部分上以覆盖所述感光部分的保护膜; 放置在保护膜上以覆盖两个霍尔元件的磁敏部分的薄膜磁性板; 以及进一步计算来自两个霍尔元件的信号的和和差的处理电路,以产生具有90度的精确相位差的信号。 因此,位置检测装置可以检测旋转方向和精确的旋转角度。
    • 10. 发明授权
    • Shock absorber having bidirectional valve and flow restricting passage parallel to the valve
    • 具有与阀门平行的双向阀和流动限制通道的减震器
    • US06202805B1
    • 2001-03-20
    • US09206304
    • 1998-12-07
    • Ichiro OkadaIchisei Kamimura
    • Ichiro OkadaIchisei Kamimura
    • F16F934
    • F16F9/3214B60G2500/11B60G2600/184F16F9/3484F16F9/462F16F9/468
    • Shock absorber including a cylinder body and a piston cooperating to two chambers one and the other of which respectively function as high-pressure and low-pressure chambers, a piston rod fixed to the piston, and a damping force control device including (i) a hard valve which permits a flow of a working fluid from the high-pressure chamber toward the low-pressure chamber when a difference between fluid pressures in the high-pressure and low-pressure chambers is larger than a predetermined threshold, (ii) a soft valve which permits the fluid flow from the high-pressure chamber toward the low-pressure chamber when the pressure difference is not larger than the threshold, and (iii) a flow restricting fluid passage disposed in parallel with at least one of the hard and soft valves, and wherein at least one of the hard and soft valves and the soft valve permits a flow of the fluid therethrough during both elongation and contraction of the shock absorber.
    • 减震器包括一个缸体和一个与两个室相配合的活塞,一个又一个分别用作高压和低压室,一个固定在活塞上的活塞杆,以及一个阻尼力控制装置,包括:(i) 当高压室和低压室中的流体压力差大于预定阈值时,允许工作流体从高压室流向低压室的硬阀,(ii)软的 阀,其允许当压力差不大于阈值时,流体从高压室流向低压室;以及(iii)流动限制流体通道,其与至少一个硬和软的平行设置 阀,并且其中硬和软阀和软阀中的至少一个允许在减震器的伸长和收缩期间流体流过其中。