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251 条记录 (耗时 0.032 秒)

    Digital-control Colpitts oscillator circuit
    1.
    发明授权
    Digital-control Colpitts oscillator circuit 失效
    数字控制Colpitts振荡电路

    公开(公告)号：US06304152B1

    公开(公告)日：2001-10-16

    申请号：US09628356

    申请日：2000-07-28

    申请人： Yutaka Takahashi ,  Kouji Nakamura

    发明人： Yutaka Takahashi ,  Kouji Nakamura

    IPC分类号： H03B536

    CPC分类号： H03B5/364 ,  H03B2201/025 ,  H03J2200/10

    摘要： The Colpitts circuit is configured so that an equivalent capacitance of the voltage-dividing first and second capacitors connected in series through the output of the transistor amplifier is variable under the condition that the ratio of the capacitance of the first capacitor to that of the second capacitor is kept unchanged at a prescribed value. The first and second capacitors are, as a whole, configured as a matrix of elemental capacitors with 2 rows and a plural number n of columns, an array of the elemental capacitors in the first row being allotted to the first capacitor and an array of the elemental capacitors in the second row being allotted to the second capacitor. Two elemental capacitors in each column j (j=1, 2, . . . n) are connected in series and the ratio of the capacitance of the elemental capacitor corresponding to the 1j element of the matrix to the capacitance of the elemental capacitor corresponding to the 2j element has the prescribed value. The Colpitts circuit further has a first switch and a second switch allotted to each of the columns. Each of the elemental capacitors allocated to the first row is connected to the control electrode of the transistor amplifier through the first switch, and the junction of the two elemental capacitors allocated to each column is connected to the output of said transistor amplifier through the second switch. The first and second switches are operated synchronously for every column.

    摘要翻译： Colpitts电路被配置为使得通过晶体管放大器的输出串联连接的分压第一和第二电容器的等效电容在第一电容器的电容与第二电容器的电容的比率 保持在规定值不变。 作为整体，第一和第二电容器被配置为具有2行和多个n列的元素电容器的矩阵，第一行中的元件电容器的阵列被分配给第一电容器，并且阵列的 第二排中的元素电容器被分配给第二电容器。 每列j（j = 1,2，...）中的两个元素电容器被串联连接，并且与矩阵的1j元素相对应的元件电容器的电容与对应于 2j元素具有规定值。 Colpitts电路还具有分配给每个列的第一开关和第二开关。 分配给第一行的每个元件电容器通过第一开关连接到晶体管放大器的控制电极，并且分配给每一列的两个元件电容器的结通过第二开关连接到所述晶体管放大器的输出端 。 第一和第二开关为每列同步运行。

    Developer pump with restricted detection time and image forming device
    3.
    发明授权
    Developer pump with restricted detection time and image forming device 有权
    显影泵具有受限的检测时间和成像装置

    公开(公告)号：US09547257B2

    公开(公告)日：2017-01-17

    申请号：US14547574

    申请日：2014-11-19

    申请人： Junichi Matsumoto ,  Kiyonori Tsuda ,  Nobuo Takami ,  Yutaka Takahashi ,  Kentaro Mikuniya ,  Keinosuke Kondoh ,  Akihiro Kawakami ,  Toshio Koike

    发明人： Junichi Matsumoto ,  Kiyonori Tsuda ,  Nobuo Takami ,  Yutaka Takahashi ,  Kentaro Mikuniya ,  Keinosuke Kondoh ,  Akihiro Kawakami ,  Toshio Koike

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0879 ,  G03G15/0858

    摘要： An image forming apparatus includes a developer conveyance device to transport developer, using a positive-displacement pump to alternately generate positive pressure and negative pressure by changing a volume of an internal space thereof, a destination developer container to which the developer conveyance device transports developer, a sensor provided to the destination developer container, to detect developer in the destination developer container, and a controller to control the positive-displacement pump according to a detection result generated by the sensor. The controller disabled detection of developer by the sensor in a non-detection period that starts from a stop of the positive-displacement pump.

    摘要翻译： 图像形成装置包括：显影剂输送装置，用于输送显影剂，使用正排量泵，通过改变其内部空间的体积来交替产生正压和负压;显影剂输送装置输送显影剂的目标显影剂容器; 提供给目的地显影剂容器的传感器，用于检测目标显影剂容器中的显影剂，以及根据由传感器产生的检测结果来控制正排量泵的控制器。 控制器在从容积泵的停止开始的非检测时段内禁止传感器检测显影剂。

    Driving force transmission mechanism and image forming apparatus
    6.
    发明授权
    Driving force transmission mechanism and image forming apparatus 有权
    驱动力传递机构和图像形成装置

    公开(公告)号：US09109633B2

    公开(公告)日：2015-08-18

    申请号：US13398063

    申请日：2012-02-16

    申请人： Hideo Yoshizawa ,  Kiyonori Tsuda ,  Takuzi Yoneda ,  Yutaka Takahashi ,  Emi Kita ,  Yuki Oshikawa ,  Kohichi Utsunomiya

    发明人： Hideo Yoshizawa ,  Kiyonori Tsuda ,  Takuzi Yoneda ,  Yutaka Takahashi ,  Emi Kita ,  Yuki Oshikawa ,  Kohichi Utsunomiya

    IPC分类号： G03G15/08 ,  G03G15/00 ,  F16D1/10 ,  F16D3/223

    CPC分类号： F16D1/101 ,  F16D2001/102 ,  F16D2003/22326

    摘要： A driving force transmission mechanism includes a connection for integrally rotating a driving shaft on the driving source side and a driven shaft of a rotary member. The connection includes a tubular boss portion; and a fitting shaft portion fitted into the tubular boss portion. An inner shaft portion is provided in a projecting manner from bottom center of the tubular boss portion toward inside the tubular boss portion. An inner recessed portion into which the inner shaft portion fits is provided in center of a leading edge plane for fitting of the fitting shaft portion. Micro gaps are provided between an inner surface of the tubular boss portion and an outer surface of the fitting shaft portion and between an inner surface of the inner recessed portion and an outer surface of the inner shaft portion.

    摘要翻译： 驱动力传递机构包括用于使驱动源侧的驱动轴一体旋转的连接部和旋转部件的从动轴。 连接包括管状凸台部分; 以及嵌合在筒状凸起部中的嵌合轴部。 内筒部分从管状凸台部分的底部中心向管状凸台部分的内侧突出设置。 内轴部配合的内部凹部设置在前端面的中心，用于嵌合轴部的嵌合。 在管状凸台部的内表面和嵌合轴部的外表面之间以及内凹部的内表面与内轴部的外表面之间设置微小间隙。

    Image forming apparatus incorporating developing device with first and second seals
    7.
    发明授权
    Image forming apparatus incorporating developing device with first and second seals 有权
    图像形成装置包括具有第一和第二密封件的显影装置

    公开(公告)号：US08923726B2

    公开(公告)日：2014-12-30

    申请号：US13430004

    申请日：2012-03-26

    申请人： Kiyonori Tsuda ,  Hideo Yoshizawa ,  Kohichi Utsunomiya ,  Takuzi Yoneda ,  Yutaka Takahashi ,  Emi Kita ,  Yuki Oshikawa

    发明人： Kiyonori Tsuda ,  Hideo Yoshizawa ,  Kohichi Utsunomiya ,  Takuzi Yoneda ,  Yutaka Takahashi ,  Emi Kita ,  Yuki Oshikawa

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0942

    摘要： A development device includes a development casing, a developer bearer disposed facing a latent image bearer through an opening formed in the development casing, a magnetic field generator, a developer regulator disposed facing the developer bearer, a first seal member to cover a clearance between the latent image bearer and a rim of the development casing upstream from the opening, and a second seal member. The first seal member includes a first end portion fixed to the rim of the development casing and a second end portion in contact with the latent image bearer, and the second seal member includes a first end portion fixed to an inner face of the development casing farther from the latent image bearer than the first seal member, and a second end portion hanging to contact the developer carried on the developer bearer downstream from the developer regulator.

    摘要翻译： 显影装置包括显影壳体，通过形成在显影壳体中的开口面向潜像载体设置的显影剂载体，磁场发生器，与显影剂载体相对设置的显影剂调节器，第一密封构件， 潜像承载体和开口壳体的边缘，以及第二密封构件。 第一密封构件包括固定到显影壳体的边缘的第一端部和与潜像载体接触的第二端部，并且第二密封构件包括固定到显影壳体的内表面的第一端部 从第一密封构件的潜像载体和与显影剂调节器下游显影剂载体接触的显影剂悬挂的第二端部。

    DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
    9.
    发明申请
    DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 有权
    开发设备和形成装置的图像形成装置

    公开(公告)号：US20120269553A1

    公开(公告)日：2012-10-25

    申请号：US13435168

    申请日：2012-03-30

    申请人： Hideo Yoshizawa ,  Kiyonori Tsuda ,  Takuzi Yoneda ,  Emi Kita ,  Yutaka Takahashi ,  Yuki Oshikawa ,  Kohichi Utsunomiya

    发明人： Hideo Yoshizawa ,  Kiyonori Tsuda ,  Takuzi Yoneda ,  Emi Kita ,  Yutaka Takahashi ,  Yuki Oshikawa ,  Kohichi Utsunomiya

    IPC分类号： G03G15/06

    CPC分类号： G03G15/0812

    摘要： A development device includes a development casing, a developer bearer disposed facing a latent image bearer through an opening in the development casing to carry developer, a magnetic field generator disposed inside the developer bearer, a developer regulator extending in an axial direction of the developer bearer to adjust an amount of developer carried on the developer bearer, and a first axial end seal provided in an axial end portion of the development device outside an image range, in contact with an upstream face of the developer regulator to reduce a size of a clearance between the developer regulator and the development casing.

    摘要翻译： 显影装置包括显影壳体，显影剂载体，其通过显影壳体中的开口面向潜像载体以承载显影剂;设置在显影剂载体内部的磁场发生器;显影剂调节器，其沿显影剂载体的轴向方向延伸 调节显影剂载体上承载的显影剂的量，以及设置在显影装置的轴向端部外的图像范围内的第一轴向端部密封件，与显影剂调节器的上游面接触以减小间隙的尺寸 在显影剂调节器和开发套管之间。