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13 条记录 (耗时 0.039 秒)

    Charging roller, process cartridge and electrophotographic apparatus
    7.
    发明授权
    Charging roller, process cartridge and electrophotographic apparatus 有权
    充电辊，处理盒和电子照相设备

    公开(公告)号：US07835669B2

    公开(公告)日：2010-11-16

    申请号：US12704818

    申请日：2010-02-12

    申请人： Takumi Furukawa ,  Tomohito Taniguchi ,  Hidekazu Matsuda ,  Yusuke Yagisawa

    发明人： Takumi Furukawa ,  Tomohito Taniguchi ,  Hidekazu Matsuda ,  Yusuke Yagisawa

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0233

    摘要： The present invention provides a charging roller having a stable chargeability and capable of preventing occurrence of “fogging” on an electrophotographic image. The invention relates to a contact-charging type charging roller which includes a conductive support and a surface layer. The surface layer contains a binder, resin particles containing a carbon black dispersed in the binder, and graphitized particles dispersed in the binder; and the surface layer has, on its surface, convex portions derived from the resin particles, and convex portions derived from the graphitized particles. These convex portions have a specific relationship.

    摘要翻译： 本发明提供一种具有稳定的带电性并能够防止在电子照相图像上发生“起雾”的充电辊。 本发明涉及一种接触充电型充电辊，其包括导电支撑件和表面层。 表面层含有粘合剂，分散在粘合剂中的含有炭黑的树脂颗粒和分散在粘合剂中的石墨化颗粒; 并且表面层在其表面上具有衍生自树脂颗粒的凸部和源自石墨化颗粒的凸部。 这些凸部具有特定关系。

    CHARGING MEMBER, MANUFACTURING METHOD THEREFOR, A PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
    8.
    发明申请
    CHARGING MEMBER, MANUFACTURING METHOD THEREFOR, A PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS 审中-公开
    充电会员，其制造方法，工艺盒和电子照相设备

    公开(公告)号：US20140128233A1

    公开(公告)日：2014-05-08

    申请号：US14127864

    申请日：2012-06-15

    申请人： Takumi Furukawa ,  Taichi Sato

    发明人： Takumi Furukawa ,  Taichi Sato

    IPC分类号： B05C1/08 ,  B05D5/12 ,  G03G15/02 ,  B44C1/26

    CPC分类号： C23C14/58 ,  G03G5/02 ,  G03G15/0233 ,  G03G15/0241 ,  G03G21/18 ,  G03G2215/0863 ,  Y10T428/22

    摘要： To provide a charging member which suppresses the generation of density nonuniformity in an electrophotographic image caused by charge nonuniformity due to adhesion of charged substances, such as toner particles. There is provided a charging member which has a surface layer, the surface layer includes conductive zinc oxide whiskers each formed of a nuclear portion and four needle crystal portions extending radially outward therefrom, and the needle crystal portions are exposed to form convex portions of a surface of the surface layer.

    摘要翻译： 提供一种充电构件，其抑制由于诸如调色剂颗粒的带电物质的粘附而引起的由电荷不均匀性引起的电子照相图像中的密度不均匀性的产生。 提供了具有表面层的充电部件，表面层包括由核部分形成的导电氧化锌晶须和从其径向向外延伸的四个针状晶体部分，并且针状晶体部分暴露以形成表面的凸部 的表面层。

    ELECTRO-CONDUCTIVE MEMBER FOR ELECTROPHOTOGRAPHY, ELECTROPHOTOGRAPHIC APPARATUS, AND PROCESS CARTRIDGE
    9.
    发明申请
    ELECTRO-CONDUCTIVE MEMBER FOR ELECTROPHOTOGRAPHY, ELECTROPHOTOGRAPHIC APPARATUS, AND PROCESS CARTRIDGE 有权
    电子摄影用电子导电元件，电子照相设备和工艺盒

    公开(公告)号：US20120288302A1

    公开(公告)日：2012-11-15

    申请号：US13557097

    申请日：2012-07-24

    申请人： Takumi Furukawa ,  Yusuke Yagisawa

    发明人： Takumi Furukawa ,  Yusuke Yagisawa

    IPC分类号： G03G15/02 ,  G03G21/18

    CPC分类号： C08G65/2609 ,  C08G2261/128 ,  C08L9/02 ,  C08L71/02 ,  G03G2215/00957 ,  Y10T428/31855

    摘要： When a polymer blend of an NBR and an alkylene oxide-polymerized polymer is used as the electro-conductive elastic layer of an electro-conductive member for electrophotography, a change in shape of the electro-conductive member occurs owing to its expansion due to water absorption, thereby causing image unevenness in some cases. In addition, when the ratio at which the alkylene oxide-polymerized polymer is blended is reduced for suppressing the shape change due to water absorption, image unevenness resulting from the insufficiency of electro-conductivity occurs in some cases. When an electro-conductive member for electrophotography having an electro-conductive elastic layer containing an NBR to which a specific alkylene oxide oligomer is graft-bonded is used, high ionic electro-conductivity is obtained and a change in its shape due to water absorption is reduced.

    摘要翻译： 当使用NBR和烯化氧聚合的聚合物的聚合物共混物作为用于电子照相的导电部件的导电弹性层时，导电部件的形状由于水的膨胀而发生变化 吸收，从而在某些情况下引起图像不均匀。 此外，为了抑制由于吸水而引起的形状变化，当混合烯化氧聚合的聚合物的比例降低时，在某些情况下会发生由电导率不足导致的图像不均匀。 使用具有含有特定环氧烷低聚物的NBR的导电性弹性层的电子照相用导电性构件时，可以获得高离子导电性，并且由于吸水而导致的形状变化为 减少

    Electro-conductive member for electrophotography, electrophotographic apparatus, and process cartridge
    10.
    发明授权
    Electro-conductive member for electrophotography, electrophotographic apparatus, and process cartridge 有权
    用于电子照相，电子照相设备和处理盒的导电构件

    公开(公告)号：US08445113B2

    公开(公告)日：2013-05-21

    申请号：US13557097

    申请日：2012-07-24

    申请人： Takumi Furukawa ,  Yusuke Yagisawa

    发明人： Takumi Furukawa ,  Yusuke Yagisawa

    IPC分类号： B32B27/00 ,  G03G21/16 ,  G03G15/02

    CPC分类号： C08G65/2609 ,  C08G2261/128 ,  C08L9/02 ,  C08L71/02 ,  G03G2215/00957 ,  Y10T428/31855

    摘要： When a polymer blend of an NBR and an alkylene oxide-polymerized polymer is used as the electro-conductive elastic layer of an electro-conductive member for electrophotography, a change in shape of the electro-conductive member occurs owing to its expansion due to water absorption, thereby causing image unevenness in some cases. In addition, when the ratio at which the alkylene oxide-polymerized polymer is blended is reduced for suppressing the shape change due to water absorption, image unevenness resulting from the insufficiency of electro-conductivity occurs in some cases. When an electro-conductive member for electrophotography having an electro-conductive elastic layer containing an NBR to which a specific alkylene oxide oligomer is graft-bonded is used, high ionic electro-conductivity is obtained and a change in its shape due to water absorption is reduced.

    摘要翻译： 当使用NBR和烯化氧聚合的聚合物的聚合物共混物作为用于电子照相的导电部件的导电弹性层时，导电部件的形状由于水的膨胀而发生变化 吸收，从而在某些情况下引起图像不均匀。 此外，为了抑制由于吸水而引起的形状变化，当混合烯化氧聚合的聚合物的比例降低时，在某些情况下会发生由电导率不足导致的图像不均匀。 使用具有含有特定环氧烷低聚物的NBR的导电性弹性层的电子照相用导电性构件时，可以获得高离子导电性，并且由于吸水而导致的形状变化为 减少