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8 条记录 (耗时 0.017 秒)

    Tryptanthrine compounds
    1.
    发明授权
    Tryptanthrine compounds 失效
    胰蛋白ine啶化合物

    公开(公告)号：US5817810A

    公开(公告)日：1998-10-06

    申请号：US685608

    申请日：1996-07-24

    申请人： Fumio Sugai ,  Syunichi Matsumoto ,  Nobuko Akiba ,  Yukimasa Watanabe ,  Hirofumi Kawaguchi ,  Sakae Saitoh

    发明人： Fumio Sugai ,  Syunichi Matsumoto ,  Nobuko Akiba ,  Yukimasa Watanabe ,  Hirofumi Kawaguchi ,  Sakae Saitoh

    IPC分类号： C07D487/04 ,  G03G5/06 ,  C07D471/04

    CPC分类号： C07D487/04 ,  G03G5/0651

    摘要： The present invention provides a novel tryptanthrine derivative represented by a general formula: ##STR1## wherein R.sup.1 is an oxygen atom, or group represented by a formula: ##STR2## wherein R.sup.2A and R.sup.2B are the same or different and indicate a hydrogen atom, a cyano group, an acyl group, an alkoxycarbonyl group or an alkyl group, provided that R.sup.2A and R.sup.2B are not hydrogen atoms simultaneously; and R.sup.3A, R.sup.3B, R.sup.3C, R.sup.3D, R.sup.4A, R.sup.4B, R.sup.4C and R.sup.4D are the same or different and indicate a hydrogen atom or an alkyl group which may have a substituent, provided that when R.sup.1 is an oxygen atom, any one of R.sup.3A through R.sup.4D is a cyano group. Such a tryptanthrine derivative has an excellent electron transport capability to be suitably used for the electrophotosensitive material.

    摘要翻译： 本发明提供了一种由以下通式表示的通式表示的新型色甘那宁衍生物：其中R2A和R2B相同或不同，表示氢原子，氰基，酰基，烷氧基羰基或 烷基，条件是R2A和R2B同时不是氢原子; R3A，R3B，R3C，R3D，R4A，R4B，R4C和R4D相同或不同，表示氢原子或可具有取代基的烷基，条件是当R1为氧原子时，R3A至 R4D是氰基。 这种吡啶啶衍生物具有优异的电子传递能力，适合用于光敏材料。

    Naphthoquinone derivative and electrophotosensitive material using the same
    3.
    发明授权
    Naphthoquinone derivative and electrophotosensitive material using the same 有权
    萘醌衍生物和使用其的电光敏材料

    公开(公告)号：US06395439B1

    公开(公告)日：2002-05-28

    申请号：US09594038

    申请日：2000-06-15

    申请人： Fumio Sugai ,  Nobuko Akiba

    发明人： Fumio Sugai ,  Nobuko Akiba

    IPC分类号： G03G5047

    CPC分类号： G03G5/0668 ,  C07C46/00 ,  C07C46/06 ,  C07C50/32 ,  G03G5/0609

    摘要： The present invention relates to a naphthoquinone derivative of the formula (1): wherein R1 and R2 are the same or different and each represents a hydrogen atom or an alkyl group having 1 to 6 alkyl group, and the electrophotosensitive material comprises a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein the photosensitive layer contains the naphthoquinone derivative (1).

    摘要翻译： 本发明涉及式（1）的萘醌衍生物：其中R 1和R 2相同或不同，各自表示氢原子或具有1-6个烷基的烷基，并且该电光敏材料包括导电基材和 设置在所述导电性基板上的感光层，其中，所述感光层含有所述萘醌衍生物（1）。

    Naphthoquinone derivative and electrophotographic material using the naphthoquinone derivative
    4.
    发明授权
    Naphthoquinone derivative and electrophotographic material using the naphthoquinone derivative 失效
    萘醌衍生物和使用萘醌衍生物的电子照相材料

    公开(公告)号：US5976742A

    公开(公告)日：1999-11-02

    申请号：US83981

    申请日：1998-05-26

    申请人： Fumio Sugai ,  Nobuko Akiba ,  Kazunari Hamasaki

    发明人： Fumio Sugai ,  Nobuko Akiba ,  Kazunari Hamasaki

    IPC分类号： C07D241/36 ,  C07D241/38 ,  G03G5/06 ,  G03G5/04

    CPC分类号： G03G5/0664 ,  C07D241/38 ,  G03G5/0609 ,  G03G5/067

    摘要： The present invention provides a novel naphthoquinone derivative preferred as an electron transporting agent and an electrophotographic photosensitive material of high sensitivity which contains a novel naphtoquinone derivative having a general formula (1) ##STR1## wherein R.sup.1 represents a hydrogen atom, an alkyl group which may have a substituent, or an aryl group which may contain a substituent, and R.sup.2 represents a hydrogen atom, an alkyl group which may have a substituent, a halogenated alkyl group, an aldehyde or a nitro group. The derivative is contained in a photosensitive layer of an electrophotographic photosensitive material as an electron transporting agent.

    摘要翻译： 本发明提供优选作为电子传输剂的新型萘醌衍生物和高灵敏度的电子照相感光材料，其含有通式（1）的新颖的萘醌衍生物，其中R1表示氢原子，可具有取代基的烷基 或可以含有取代基的芳基，R 2表示氢原子，可以具有取代基的烷基，卤代烷基，醛或硝基。 该衍生物包含在作为电子传输剂的电子照相感光材料的感光层中。

    Single-layer type electrophotosensitive material and image forming apparatus using the same
    5.
    发明授权
    Single-layer type electrophotosensitive material and image forming apparatus using the same 有权
    单层型电光敏材料及使用其的成像装置

    公开(公告)号：US06432595B1

    公开(公告)日：2002-08-13

    申请号：US09717397

    申请日：2000-11-22

    申请人： Hirofumi Kawaguchi ,  Yuji Tanaka ,  Yukikatsu Imanaka ,  Nobuko Akiba

    发明人： Hirofumi Kawaguchi ,  Yuji Tanaka ,  Yukikatsu Imanaka ,  Nobuko Akiba

    IPC分类号： G03G1500

    CPC分类号： G03G13/22 ,  G03G5/0605 ,  G03G5/0609 ,  G03G5/0614 ,  G03G5/0651 ,  G03G5/0672 ,  G03G5/0696

    摘要： The present invention relates to a positive charging single-layer type electrophotosensitive material comprising a conductive substrate and a photosensitive layer formed on the conductive layer, the photosensitive layer containing a phthalocyanine compound as an electric charge generating material, wherein a large half-life exposure between a half-life exposure on positive charging and a half-life exposure on negative charging is four times or less as much as that of the other half-life exposure., and a reversal development type digital image forming apparatus, comprising the electrophotosensitive material, said reversal development type digital image forming apparatus being provided with at least a main charging step, an exposure step, a developing step, a transferring step, a charge neutralizing step and a cleaning step in the forward direction of the electrophotosensitive material, characterized in that the voltage to be applied in the transferring step has a polarity reverse to that of the voltage to be applied in the charging step.

    摘要翻译： 本发明涉及一种正电荷单层型电光敏材料，其包括形成在导电层上的导电基底和感光层，该感光层含有酞菁化合物作为电荷产生材料，其中半衰期大 在正电荷下的半衰期暴露和负电荷的半衰期暴露是其他半衰期暴露的四分之一或更少的反转显影型数字图像形成装置，其包括电光敏材料， 所述反转显影型数字图像形成装置至少具有主要充电步骤，曝光步骤，显影步骤，转印步骤，电荷中和步骤和电光敏材料的正向清洁步骤，其特征在于： 在转印步骤中施加的电压具有与tha相反的极性 t在充电步骤中施加的电压。