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    • 5. 发明授权
    • Charging member, process cartridge, and electrophotographic apparatus
    • 充电构件,处理盒和电子照相设备
    • US08532534B2
    • 2013-09-10
    • US13217500
    • 2011-08-25
    • Tomohito TaniguchiSatoshi Koide
    • Tomohito TaniguchiSatoshi Koide
    • G03G15/02
    • G03G15/0233
    • A charging member includes a conductive substrate and a conductive resin layer. The conductive resin layer includes a binder, conductive fine particles, and bowl-shaped resin particles each of which has an opening. The bowl-shaped resin particles are contained in the conductive resin layer in such a way as not to be exposed to an outer surface of the charging member, and the surface of the charging member has concavities derived from openings of the bowl-shaped resin particles and protrusions derived from edges of the openings of the bowl-shaped resin particles. The bowl-shaped resin particles each has a roundish concavity and includes inner walls lined with the conductive resin layer.
    • 充电构件包括导电基板和导电树脂层。 导电性树脂层包括粘合剂,导电性细颗粒和各自具有开口的碗状树脂颗粒。 碗形树脂颗粒以不暴露于充电构件的外表面的方式包含在导电树脂层中,并且充电构件的表面具有源自碗状树脂颗粒的开口的凹部 以及源自碗状树脂颗粒的开口的边缘的突起。 碗状树脂颗粒各自具有圆形凹部,并且包括内壁形成有导电树脂层的内壁。