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    Electrophotographic photoreceptor and image forming apparatus
    1.
    发明授权
    Electrophotographic photoreceptor and image forming apparatus 有权
    电子照相感光体和成像装置

    公开(公告)号：US07625682B2

    公开(公告)日：2009-12-01

    申请号：US11198405

    申请日：2005-08-08

    申请人： Tomoko Kanazawa ,  Kotaro Fukushima

    发明人： Tomoko Kanazawa ,  Kotaro Fukushima

    IPC分类号： G03G5/06

    CPC分类号： G03G5/0672 ,  G03G5/00 ,  G03G5/0596 ,  G03G5/0601 ,  G03G5/0605 ,  G03G5/0614 ,  G03G5/0666 ,  G03G5/0668

    摘要： An electrophotographic photoreceptor having an organic photosensitive layer at the surface layer is provided which can improve the wear resistance, durability and operation stability of the surface layer and can form images with no injury and unevenness in the density for a long period of time. The electrophotographic photoreceptor includes a conductive substrate, an undercoat layer, and a photosensitive layer having a charge generating layer and a charge transporting layer. In the photoreceptor, the photosensitive layer has a creep value CIτ of 2.70% or more and an elastic ratio ηHU of 47% or more in a case where an indentation maximum load of 5 mN is loaded on the surface under a circumstance at a temperature of 25° C. and at a relatively humidity of 50%.

    摘要翻译： 提供了在表面层具有有机感光层的电子照相感光体，其可以提高表面层的耐磨性，耐久性和操作稳定性，并且可以长时间形成没有损伤和密度不均匀的图像。 电子照相感光体包括导电基底，底涂层和具有电荷产生层和电荷输送层的感光层。 在感光体中，感光层的蠕变值CItau为2.70％以上，弹性率ηaHU为47％以上，在表面上在5mN的压痕最大载荷的情况下，在温度为 25℃，相对湿度为50％。

    Electrophotographic photoconductor and image forming apparatus provided with the same
    4.
    发明授权
    Electrophotographic photoconductor and image forming apparatus provided with the same 有权
    电子照相感光体及其成像装置

    公开(公告)号：US08343697B2

    公开(公告)日：2013-01-01

    申请号：US12422636

    申请日：2009-04-13

    申请人： Tomoko Kanazawa ,  Hiroshi Sugimura

    发明人： Tomoko Kanazawa ,  Hiroshi Sugimura

    IPC分类号： G03G15/00

    CPC分类号： G03G5/0614 ,  G03G5/0517 ,  G03G5/0564 ,  G03G2215/00957

    摘要： An electrophotographic photoconductor containing at least a charge generation material and a charge transport material on a conductive support, the electrophotographic photoconductor comprising a diamine compound represented by the formula (1), and also a polyarylate resin having a structural unit represented by the following formula (I).

    摘要翻译： 一种在导电载体上至少含有电荷产生材料和电荷传输材料的电子照相感光体，该电子照相感光体包括由式（1）表示的二胺化合物，以及具有由下式表示的结构单元的多芳基化合物树脂 一世）。

    Electrophotographic photoconductor
    6.
    发明授权
    Electrophotographic photoconductor 有权
    电子照相感光体

    公开(公告)号：US07638248B2

    公开(公告)日：2009-12-29

    申请号：US11593504

    申请日：2006-11-07

    申请人： Kotaro Fukushima ,  Hisayuki Utsumi ,  Tomoko Kanazawa ,  Katsuya Takano

    发明人： Kotaro Fukushima ,  Hisayuki Utsumi ,  Tomoko Kanazawa ,  Katsuya Takano

    IPC分类号： G03G5/05

    CPC分类号： G03G5/0564 ,  G03G5/043 ,  G03G5/047 ,  G03G5/0614 ,  G03G5/0672 ,  G03G5/14708 ,  G03G5/14756

    摘要： An electrophotographic photoconductor containing a conductive substrate and at least a charge generating layer and a charge transporting layer successively layered on the substrate, wherein the charge transporting layer contains a charge transporting material (M) and a binder resin (B) and further has a layered structure composed of a plurality of the charge transporting layers wherein the outermost layer of the charge transporting layers show 50% or higher elastic power (ηHu) and hardness (Hplast) of plastic deformation in a range from 220 N/mm2 or higher to 275 N/mm2 or lower.

    摘要翻译： 一种电子照相感光体，其含有导电性基板和至少具有电荷产生层和电荷输送层的电荷输送层，所述电荷输送层依次层叠在所述基板上，所述电荷输送层含有电荷输送材料（M）和粘合剂树脂（B），并且还具有层叠体 由多个电荷输送层构成的结构，其中电荷输送层的最外层显示出在220N / mm 2以上至275N以下的塑性变形的50％以上的弹性功率（η）和硬度（Hplast） / mm2以下。

    Electrophotographic photoreceptor and image forming apparatus
    7.
    发明申请
    Electrophotographic photoreceptor and image forming apparatus 有权
    电子照相感光体和成像装置

    公开(公告)号：US20060029874A1

    公开(公告)日：2006-02-09

    申请号：US11198405

    申请日：2005-08-08

    申请人： Tomoko Kanazawa ,  Kotaro Fukushima

    发明人： Tomoko Kanazawa ,  Kotaro Fukushima

    IPC分类号： G03G5/06

    CPC分类号： G03G5/0672 ,  G03G5/00 ,  G03G5/0596 ,  G03G5/0601 ,  G03G5/0605 ,  G03G5/0614 ,  G03G5/0666 ,  G03G5/0668

    摘要： An electrophotographic photoreceptor having an organic photosensitive layer at the surface layer is provided which can improve the wear resistance, durability and operation stability of the surface layer and can form images with no injury and unevenness in the density for a long period of time. The electrophotographic photoreceptor includes a conductive substrate, an undercoat layer, and a photosensitive layer having a charge generating layer and a charge transporting layer. In the photoreceptor, the photosensitive layer has a creep value CIτ of 2.70% or more and an elastic ratio ηHU of 47% or more in a case where an indentation maximum load of 5 mN is loaded on the surface under a circumstance at a temperature of 25° C. and at a relatively humidity of 50%.

    摘要翻译： 提供了在表面层具有有机感光层的电子照相感光体，其可以提高表面层的耐磨性，耐久性和操作稳定性，并且可以长时间形成没有损伤和密度不均匀的图像。 电子照相感光体包括导电基底，底涂层和具有电荷产生层和电荷输送层的感光层。 在感光体中，感光层的蠕变值为0.70％以上，弹性比ηη为47％以上，在压痕最大值 在25℃的温度和50％的相对湿度的情况下，在表面上加载5mN的载荷。

    ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS INCLUDING THE SAME
    8.
    发明申请
    ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS INCLUDING THE SAME 审中-公开
    电子照相机和图像形成装置，包括它们

    公开(公告)号：US20080138727A1

    公开(公告)日：2008-06-12

    申请号：US11950865

    申请日：2007-12-05

    申请人： Kotaro FUKUSHIMA ,  Tomoko Kanazawa ,  Tomomi Nakamura

    发明人： Kotaro FUKUSHIMA ,  Tomoko Kanazawa ,  Tomomi Nakamura

    IPC分类号： G03G15/02 ,  G03G15/00

    CPC分类号： G03G5/0614 ,  G03G5/0668 ,  G03G5/0672 ,  G03G5/0696 ,  G03G5/144 ,  G03G5/14704

    摘要： It is an object of the present invention to provide a highly durable electrophotographic photoreceptor which is superior in mechanical and electrical durability and does not cause abnormal images to occur for prolonged repeated use, and an image forming apparatus including the same. An electrophotographic photoreceptor comprising at least a charge generation layer and a charge transport layer in this order on a conductive substrate, wherein the outermost surface layer of the electrophotographic photoreceptor contains filler particles and the filler particles in the layer satisfy the following equation (I): 1.0×10−3≦(df×b3)/(dm×a3)≦2.5×10−2 ,   (I) wherein “a” is an average filler interparticle distance (nm), “b” is an average diameter (nm) of filler particles, “df” is a density (g/cm3) of the filler particles, and “dm” is an average density (g/cm3) of a solid in the outermost surface layer is provided.

    摘要翻译： 本发明的目的是提供一种耐久性高的电子照相感光体，它具有优异的机械和电气耐久性，并且不会引起长时间反复使用时出现异常图像，以及包括该电子照相感光体的图像形成装置。 电子照相感光体在导电性基材上依次包含至少电荷产生层和电荷输送层，其中，电子照相感光体的最表面层含有填料粒子，层中的填料粒子满足下式（I）： <？in-line-formula description =“In-line Formulas”end =“lead”？> 1.0×10 -3 <=（dfxb 3+）/（dmxa < （I）<= 2.5×10 -2，（I）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中“a “是平均填料颗粒间距离（nm），”b“是填料颗粒的平均直径（nm），”df“是填料颗粒的密度（g / cm 3） “dm”是提供最外表面层中的固体的平均密度（g / cm 3）。

    Electrophotographic photoconductor
    9.
    发明申请
    Electrophotographic photoconductor 有权

    公开(公告)号：US20070105031A1

    公开(公告)日：2007-05-10

    申请号：US11593504

    申请日：2006-11-07

    申请人： Kataro Fukushima ,  Hisayuki Utsumi ,  Tomoko Kanazawa ,  Katsuya Takano

    发明人： Kataro Fukushima ,  Hisayuki Utsumi ,  Tomoko Kanazawa ,  Katsuya Takano

    IPC分类号： G03G5/05

    CPC分类号： G03G5/0564 ,  G03G5/043 ,  G03G5/047 ,  G03G5/0614 ,  G03G5/0672 ,  G03G5/14708 ,  G03G5/14756

    摘要： An electrophotographic photoconductor comprising a conductive substrate and at least a charge generating layer and a charge transporting layer successively layered on the substrate, wherein the charge transporting layer comprises a charge transporting material (M) and a binder resin (B) which contains, as a main component, a compound represented by the general formula (1): in which R1, R2, R3, R4, R5, R6, R7 and R8, may be the same or different each other and each independently denote a hydrogen atom, a halogen atom, or a substituted or unsubstituted C1 to C6 alkyl group; and R9 and R10 may be the same or different each other and each independently denote a hydrogen atom, a halogen atom, a substituted or unsubstituted C1 to C6 alkyl group, a saturated cyclic C4 to C10 hydrocarbyl group, or a substituted or unsubstituted aryl group; and n denotes an integer: and further has a layered structure composed of a plurality of said charge transporting layers wherein the outermost layer of the said charge transporting layers show 50% or higher elastic power (ηHU) measured in the surface coating hardness test by applying a highest pushing load of 5 mN to the surface layer at ambient temperature of 25° C. and at 50% relative humidity and hardness (Hplast) of plastic deformation in a range from 220 N/mm2 or higher to 275 N/mm2 or lower. The ratio M/B by weight of the charge transporting material (M) of the outermost layer and the binder resin (B) is controlled to be preferably 30/70 or lower and more preferably in a range from 7/93 or higher and 20/80 or lower and a preferable enamine type charge transporting material (2) is added to obtain an electrophotographic photoconductor excellent in printing durability and high photo-response.