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13 条记录 (耗时 0.031 秒)

    Electrophotographic photoconductor and method of producing same
    3.
    发明授权
    Electrophotographic photoconductor and method of producing same 失效
    电子照相感光体及其制造方法

    公开(公告)号：US5958638A

    公开(公告)日：1999-09-28

    申请号：US99039

    申请日：1998-06-18

    申请人： Satoshi Katayama ,  Takahiro Teramoto ,  Kiyofumi Morimoto ,  Satoshi Machino ,  Tatsuhiro Morita ,  Tomoko Kanazawa

    发明人： Satoshi Katayama ,  Takahiro Teramoto ,  Kiyofumi Morimoto ,  Satoshi Machino ,  Tatsuhiro Morita ,  Tomoko Kanazawa

    IPC分类号： G03G5/06 ,  G03G5/14

    CPC分类号： G03G5/0659 ,  G03G5/142 ,  G03G5/144

    摘要： An object of the invention is to provide an electrophotographic photoconductor featuring uniform chargeability to a predetermined potential, low residual potential and excellent stability in the operating environment and repeated use thereof, as well as a method of producing the same. An undercoat layer between a substrate and a photosensitive layer is formed by the use of a coating fluid for undercoat layer containing a coupling agent having an unsaturated bond, a metal oxide, a binder and a mixture solvent. The coupling agent increases affinity of the metal oxide for the binder so that the coating fluid does not suffer the aggregation of the metal oxide or gelation thereof, presenting homogeneity and excellent can-stability. Thus is obtained a uniform undercoat layer. A photoconductor having this undercoat layer is adapted to be uniformly charged to a predetermined potential and to suppress the rise of residual potential and particularly the rise of residual potential due to a use thereof under low-temperature, low-humidity conditions or the repeated use thereof over an extended period of time, thus offering a high photosensitivity in a stable manner.

    摘要翻译： 本发明的一个目的是提供一种电子照相感光体及其制造方法，该电子照相感光体具有预定电位的均匀带电性，低残留电位和优异的操作环境稳定性及其重复使用。 通过使用含有具有不饱和键的偶联剂，金属氧化物，粘合剂和混合溶剂的底涂层用涂布液，形成基材和感光层之间的底涂层。 偶联剂增加金属氧化物对粘合剂的亲和力，使得涂布液不会发生金属氧化物的凝集或其凝胶化，具有均匀性和优异的罐稳定性。 得到均匀的底涂层。 具有该底涂层的感光体适于均匀地充电至预定电位，并且抑制残留电位的上升，特别是由于在低温，低湿度条件下使用而导致的残留电位的上升，或者其重复使用 延长时间，从而以稳定的方式提供高光敏性。

    Electrophotographic photoconductor and image forming apparatus provided with the same
    6.
    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 photoreceptor, process for production thereof, and image-forming apparatus using same
    7.
    发明授权
    Electrophotographic photoreceptor, process for production thereof, and image-forming apparatus using same 有权
    电子照相感光体及其制造方法以及使用其的图像形成装置

    公开(公告)号：US6136485A

    公开(公告)日：2000-10-24

    申请号：US188342

    申请日：1998-11-09

    申请人： Kazuya Ishida ,  Satoshi Katayama ,  Takahiro Teramoto ,  Akihiko Kawahara ,  Kazushige Morita ,  Tomoko Kanazawa

    发明人： Kazuya Ishida ,  Satoshi Katayama ,  Takahiro Teramoto ,  Akihiko Kawahara ,  Kazushige Morita ,  Tomoko Kanazawa

    IPC分类号： G03G5/05 ,  C08K3/22 ,  C08L29/14 ,  G03G5/14

    CPC分类号： G03G5/144 ,  G03G5/142

    摘要： The object of the invention is to provide a highly characteristic and lesser defective image using an electrophotographic photoreceptor which can be produced with a better coating property and which is highly sensitive and hardly loses the electrostatic stability during repeated use. A water-soluble or water/alcohol-soluble polyvinyl acetal and an inorganic pigment are involved in an underlayer provided between a conductive support and a photoconductive layer. Particularly, it is favorable to use titanium oxide as the inorganic pigment, make the ratio of polyvinyl acetal/titanium oxide 1/9-9/1 by weight, make the underlayer 0.5-5 .mu.m in thickness, use the titanium oxide of which the surface is treated with alumina, use the titanium oxide of which the titanium oxide component is 95% by weight or lower and of which the surface is treated with alumina, use the polyvinyl acetal of which the sodium ion concentration is 40 ppm or lower, and use the photo-conductive layer which contains a vinyl chloride-vinyl acetate type copolymer. As for a dispersing medium for coating the underlayer, water/alcohol=1/9-7/3 (ratio by weight) is selected. The aforementioned photoreceptor is applied to an image-forming apparatus using an inversion development process.

    摘要翻译： 本发明的目的是提供一种使用电子照相感光体的高度特征和较小的缺陷图像，该电子照相感光体可以以更好的涂层性能制造，并且在反复使用中高度敏感并且几乎不损失静电稳定性。 水溶性或水/醇可溶性聚乙烯醇缩醛和无机颜料参与设置在导电载体和光电导层之间的底层。 特别是，优选使用氧化钛作为无机颜料，使聚乙烯醇缩醛/氧化钛的比例为1 / 9-9 / 1，使底层的厚度为0.5-5μm，使用其中的氧化钛 用氧化铝处理表面，使用氧化钛成分为95重量％以下的氧化钛，其表面用氧化铝处理，使用钠离子浓度为40ppm以下的聚乙烯醇缩醛， 并使用含有氯乙烯 - 乙酸乙烯酯型共聚物的光导层。 对于用于涂覆底层的分散介质，选择水/醇= 1 / 9-7 / 3（重量比）。 使用反转显影处理将上述感光体应用于图像形成装置。

    Electrophotographic photoreceptor and image forming apparatus
    8.
    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
    10.
    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。