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    FIXING DEVICE AND IMAGE FORMING APPARATUS
    21.
    发明申请
    FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
    固定装置和图像形成装置

    公开(公告)号：US20130251420A1

    公开(公告)日：2013-09-26

    申请号：US13552942

    申请日：2012-07-19

    申请人： Koji OKABE ,  Yasutaka Gotoh ,  Yuki Kubota ,  Takayuki Ryu

    发明人： Koji OKABE ,  Yasutaka Gotoh ,  Yuki Kubota ,  Takayuki Ryu

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2053 ,  G03G2215/2035 ,  G03G2215/2061 ,  G03G2215/2064

    摘要： A fixing device includes a fixing member that is rotatable and heated by a heater; an endless belt member that is rotatable while being in contact with the fixing member; and a pressing member that is disposed inside of the belt member. The pressing member presses the fixing member with the belt member therebetween so as to form a fixing nip between the fixing member and the belt member, the fixing nip allowing a recording medium to pass therethrough to fix a toner image onto the recording medium. In an output region of the fixing nip from which the recording medium is output from the fixing nip, a curvature of a cross-sectional shape of an end portion of the belt member in a width direction is larger than a curvature of a cross-sectional shape of a middle portion of the belt member in the width direction.

    摘要翻译： 固定装置包括可由加热器旋转和加热的固定构件; 环状带构件，其能够在与所述固定构件接触的状态下旋转; 以及设置在所述带构件内部的按压构件。 按压构件将固定构件压在固定构件之间，以在固定构件和带构件之间形成定影夹持部，定影夹持部使记录介质通过以将调色剂图像定影到记录介质上。 在从定影辊隙输出记录介质的定影辊隙的输出区域中，带部件的宽度方向的端部的截面形状的曲率大于横截面的曲率 带状部件的宽度方向的中央部的形状。

    Fixing device and image forming apparatus
    23.
    发明授权
    Fixing device and image forming apparatus 有权
    固定装置和成像装置

    公开(公告)号：US08862040B2

    公开(公告)日：2014-10-14

    申请号：US13552942

    申请日：2012-07-19

    申请人： Koji Okabe ,  Yasutaka Gotoh ,  Yuki Kubota ,  Takayuki Ryu

    发明人： Koji Okabe ,  Yasutaka Gotoh ,  Yuki Kubota ,  Takayuki Ryu

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2053 ,  G03G2215/2035 ,  G03G2215/2061 ,  G03G2215/2064

    摘要： A fixing device includes a fixing member that is rotatable and heated by a heater; an endless belt member that is rotatable while being in contact with the fixing member; and a pressing member that is disposed inside of the belt member. The pressing member presses the fixing member with the belt member therebetween so as to form a fixing nip between the fixing member and the belt member, the fixing nip allowing a recording medium to pass therethrough to fix a toner image onto the recording medium. In an output region of the fixing nip from which the recording medium is output from the fixing nip, a curvature of a cross-sectional shape of an end portion of the belt member in a width direction is larger than a curvature of a cross-sectional shape of a middle portion of the belt member in the width direction.

    摘要翻译： 固定装置包括可由加热器旋转和加热的固定构件; 环状带构件，其能够在与所述固定构件接触的状态下旋转; 以及设置在所述带构件内部的按压构件。 按压构件将固定构件压在固定构件之间，以在固定构件和带构件之间形成定影夹持部，定影夹持部使记录介质通过以将调色剂图像定影到记录介质上。 在从定影辊隙输出记录介质的定影辊隙的输出区域中，带部件的宽度方向的端部的截面形状的曲率大于横截面的曲率 带状部件的宽度方向的中央部的形状。

    Imaging optical system, and imaging apparatus incorporting the same
    24.
    发明授权
    Imaging optical system, and imaging apparatus incorporting the same 有权
    成像光学系统和成像设备

    公开(公告)号：US08482867B2

    公开(公告)日：2013-07-09

    申请号：US13135778

    申请日：2011-07-11

    申请人： Yuki Kubota

    发明人： Yuki Kubota

    IPC分类号： G02B9/12

    CPC分类号： G02B27/0006 ,  G02B13/0045 ,  G02B13/02

    摘要： The invention provides an imaging optical system comprising, in order from an object side to an image side thereof, a first lens group of positive refracting power, a second lens group having positive or negative refracting power and a third lens group of positive refracting power. The optical system includes an aperture stop located between an object-side surface in the first lens group and an object-side surface in the second lens group. The lens on the most object side of the first lens group and the lens on the most image side of the third lens group remain constantly fixed, and upon focusing from a far distance to a near distance, only the second lens group moves axially. The third lens group comprises a front lens subgroup of positive refracting power located on the object side and a rear lens subgroup of negative refracting power located on the image side, with the largest axial air separation in the third lens group interposed between them.

    摘要翻译： 本发明提供了一种成像光学系统，其从物体侧到其像侧依次包括正折射率的第一透镜组，具有正或负折射光焦度的第二透镜组和正折射率的第三透镜组。 光学系统包括位于第一透镜组中的物体侧表面和第二透镜组中的物体侧表面之间的孔径光阑。 第一透镜组的最物体侧的透镜和第三透镜组的最大像侧的透镜保持恒定地固定，并且当从远距离聚焦到近距离时，仅第二透镜组轴向移动。 第三透镜组包括位于物体侧的正折射力的前透镜子组和位于图像侧的负折射力的后透镜子组，其中第三透镜组中的最大轴向空气分离在它们之间。

    Zoom lens system and image pickup apparatus using the same
    27.
    发明申请
    Zoom lens system and image pickup apparatus using the same 有权
    变焦镜头系统及使用其的摄像装置

    公开(公告)号：US20100238564A1

    公开(公告)日：2010-09-23

    申请号：US12661173

    申请日：2010-03-11

    申请人： Yuki Kubota ,  Masato Miyata ,  Nobumasa Kanbayashi

    发明人： Yuki Kubota ,  Masato Miyata ,  Nobumasa Kanbayashi

    IPC分类号： G02B15/14

    CPC分类号： G02B15/173

    摘要： A zoom lens system includes in order from an object side to an image side, a first lens unit G1 having a positive refracting power, a second lens unit G2 having a negative refracting power, a third lens unit G3 having a positive refracting power, and a fourth lens unit G4 having a positive refracting power. At the time of zooming from a wide angle end to a telephoto end, distances between the lens units change. The third lens unit includes a first cemented lens component having a concave image-side surface on the image side, and a second cemented lens component having a concave object-side surface on the object side, which is disposed immediately after the image side of the first cemented lens component. The first cemented lens component includes a positive lens, and a negative lens having a concave image-side surface which is disposed on the image side of the positive lens. The second cemented lens component includes a negative lens having a concave object-side surface on the object side, and a positive lens which is disposed on the image side of the negative lens.

    摘要翻译： 变焦透镜系统包括从物体侧到像侧的顺序，具有正折射率的第一透镜单元G1，具有负折射力的第二透镜单元G2，具有正折射率的第三透镜单元G3，以及 具有正折射率的第四透镜单元G4。 在从广角端到长焦端的变焦时，透镜单元之间的距离发生变化。 第三透镜单元包括在图像侧具有凹面像侧表面的第一胶合透镜部件和在物体侧具有凹面物侧表面的第二胶合透镜部件，其紧邻在 第一胶合透镜组件。 第一胶合透镜部件包括正透镜和设置在正透镜的像侧上的具有凹面像侧面的负透镜。 第二胶合透镜部件包括在物体侧具有凹形物体侧表面的负透镜，以及设置在负透镜的像侧的正透镜。