利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

45 条记录 (耗时 0.026 秒)

    Wet-developing electrophotographic photoconductor and wet-developing image
    31.
    发明申请
    Wet-developing electrophotographic photoconductor and wet-developing image 有权
    湿显影电子照相感光体和湿显影图像

    公开(公告)号：US20060166117A1

    公开(公告)日：2006-07-27

    申请号：US10563507

    申请日：2004-11-17

    申请人： Jun Azuma ,  Fumio Sugai

    发明人： Jun Azuma ,  Fumio Sugai

    IPC分类号： G03G5/047 ,  G03G5/05

    CPC分类号： G03G5/0637 ,  G03G5/0436 ,  G03G5/0557 ,  G03G5/0564 ,  G03G5/0592 ,  G03G5/0596 ,  G03G5/0605 ,  G03G5/065 ,  G03G5/0651 ,  G03G5/0661

    摘要： It is an object of the present invention to provide a wet-developing electrophotographic photoconductor which can be manufactured stably by making use of particular physical property indexes of an electron transport agent and a binding resin and possesses the excellent durability and the excellent solvent resistance and a wet-developing image forming device which uses such a wet-developing electrophotographic photoconductor. To achieve such an object, in a wet-developing electrophotographic photoconductor which forms a photosensitive layer containing at least a charge generating agent, an electron transport agent, a hole transport agent and a binding resin on an electrically conductive base body thereof and a wet-developing image forming device which uses the wet-developing electrophotographic photoconductor, an inorganic value/organic value (I/O value) of the electron transport agent is set to 0.60 or more and an inorganic value/organic value (I/O value) of the binding resin is set to 0.37 or more, or a molecular weight of the electron transport agent is set to a value equal to or more than 600 and an inorganic value/organic value (I/O value) of the binding resin is set to 0.37 or more.

    摘要翻译： 本发明的目的是提供一种湿式显影电子照相感光体，其可以通过使用电子传输剂和粘合树脂的特定物理性能指标而稳定地制造，并且具有优异的耐久性和优异的耐溶剂性和 湿式显影图像形成装置，其使用这种湿式显影电子照相感光体。 为了实现这样的目的，在形成感光层的湿式显影电子照相感光体中，该感光层至少含有电荷发生剂，电子传输剂，空穴传输剂和粘合树脂，在导电性基体上， 使用湿式显影电子照相感光体的显影图像形成装置将电子传输剂的无机值/有机值（I / O值）设定为0.60以上，无机值/有机值（I / O值）为 将粘合树脂设定为0.37以上，将电子输送剂的分子量设定为600以上的值，将粘合树脂的无机/有机值（I / O值）设定为 0.37以上。

    Oxo-titanylphthalocyanine crystal, method for producing the same, and electrophotographic photoreceptor
    37.
    发明授权
    Oxo-titanylphthalocyanine crystal, method for producing the same, and electrophotographic photoreceptor 有权
    氧化钛氧基酞菁晶体，其制造方法和电子照相感光体

    公开(公告)号：US08242261B2

    公开(公告)日：2012-08-14

    申请号：US12924710

    申请日：2010-10-01

    申请人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

    发明人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

    IPC分类号： C09B67/04

    CPC分类号： C09B67/0026 ,  C09B67/0016 ,  G03G5/0696

    摘要： The invention provides an oxo-titanylphthalocyanine crystal which is stable, is superior in dispersibility in a photoreceptive layer and efficiently contributes to improvements in sensitivity and charge retention rate of an electrophotographic photoreceptor when it is used as a charge generating agent, a method for producing the oxo-titanylphthalocyanine crystal, and an electrophotographic photoreceptor. The oxo-titanylphthalocyanine crystal has predetermined optical characteristics and thermal properties and is produced by a production method including the following steps (a) to (d): (a) a step of dissolving a crude oxo-titanylphthalocyanine crystal in an acid to obtain an oxo-titanylphthalocyanine solution; (b) a step of adding the oxo-titanylphthalocyanine solution dropwise in a poor solvent to obtain a wet cake; (c) a step of washing the wet cake with an alcohol having 1 to 4 carbon atoms; and (d) a step of stirring the washed wet cake under heating in a nonaqueous solvent to obtain an oxo-titanylphthalocyanine crystal.

    摘要翻译： 本发明提供了一种稳定的氧代 - 钛氧基酞菁晶体，其在感光层中的分散性优异，并且有效地提高了当用作电荷产生剂时电子照相感光体的灵敏度和电荷保持率的提高， 氧代 - 钛氧基酞菁晶体和电子照相感光体。 氧代 - 钛氧基酞菁晶体具有预定的光学特性和热性质，并且通过包括以下步骤（a）至（d）的制备方法制备：（a）将粗的氧代 - 氧化钛酞菁结晶溶解在酸中以获得 氧代 - 钛氧基酞菁溶液; （b）将氧代 - 钛氧基酞菁溶液滴加到不良溶剂中以获得湿滤饼的步骤; （c）用具有1至4个碳原子的醇洗涤湿滤饼的步骤; 和（d）在非水溶剂中加热下搅拌洗涤的湿滤饼以获得氧代 - 氧化钛酞菁晶体的步骤。

    DRUM UNIT AND IMAGE-FORMING APPARATUS INCLUDING THE SAME
    38.
    发明申请
    DRUM UNIT AND IMAGE-FORMING APPARATUS INCLUDING THE SAME 有权
    鼓单元和图像形成装置，包括它们

    公开(公告)号：US20100189482A1

    公开(公告)日：2010-07-29

    申请号：US12620704

    申请日：2009-11-18

    申请人： Jun Azuma ,  Kensuke Okawa ,  Eiji Morimoto

    发明人： Jun Azuma ,  Kensuke Okawa ,  Eiji Morimoto

    IPC分类号： G03G21/00

    CPC分类号： G03G21/1828 ,  G03G21/0011 ,  G03G21/007 ,  G03G21/1832 ,  G03G2221/0089

    摘要： In some embodiments, a drum unit may include an electrophotographic photosensitive member having a base member and a photosensitive layer on the base member. An embodiment may include a cleaning blade configured to abut the photosensitive layer to remove a developer remaining on the photosensitive layer of the electrophotographic photosensitive member. Some embodiments may include side seals disposed at both ends of the cleaning blade to inhibit leakage of the developer. In some embodiments, a portion of a side seal may be in contact with at least a portion of the surface and an end face of the photosensitive layer.

    摘要翻译： 在一些实施例中，鼓单元可以包括在基底构件上具有基底构件和感光层的电子照相感光构件。 实施例可以包括被配置为邻接感光层以去除残留在电子照相感光构件的感光层上的显影剂的清洁刮板。 一些实施例可以包括设置在清洁刮板两端的侧密封件，以抑制显影剂的泄漏。 在一些实施例中，侧密封件的一部分可以与感光层的表面和端面的至少一部分接触。

    Electrophotographic photoconductor and image forming apparatus
    39.
    发明申请
    Electrophotographic photoconductor and image forming apparatus 审中-公开
    电子照相感光体和成像装置

    公开(公告)号：US20080050666A1

    公开(公告)日：2008-02-28

    申请号：US11891861

    申请日：2007-08-14

    申请人： Junichiro Otsubo ,  Jun Azuma ,  Keiji Maruo ,  Yoshio Inagaki

    发明人： Junichiro Otsubo ,  Jun Azuma ,  Keiji Maruo ,  Yoshio Inagaki

    IPC分类号： G03G15/04 ,  G03G21/16

    CPC分类号： G03G15/751

    摘要： To provide an electrophotographic photoconductor which can effectively prevent the generation of exposure memory and the increase in residual potential by easily adjusting the electroconductivity in an intermediate layer, and an image forming apparatus using the electrophotographic photoconductor. An electrophotographic photoconductor comprising a base body, and an intermediate layer containing a titanium oxide and a binding resin and a photosensitive layer which are arranged on the base body, and an image forming apparatus using the same, wherein an average primary particle diameter of the titanium oxide is set to a value within the range of 5 to 30 nm, a thickness of the intermediate layer set to a value within the range of 0.5 to 3 μm, and the volume resistivity in the intermediate layer is set to a value within the range of 1×1010 to 5×1013 Ω·cm.

    摘要翻译： 提供一种能够有效地防止产生曝光记忆和通过容易地调节中间层的导电性而增加残留电位的电子照相感光体，以及使用电子照相感光体的图像形成装置。 包括基体的电子照相感光体和布置在基体上的包含氧化钛和粘合树脂和感光层的中间层以及使用其的图像形成装置，其中钛的平均一次粒径 将氧化物设定为5〜30nm的范围内，将中间层的厚度设定为0.5〜3μm的范围内，将中间层的体积电阻率设定为该范围内的值 为1×10 10至5×10 3Ω·cm。

    Image forming apparatus
    40.
    发明申请
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US20070217821A1

    公开(公告)日：2007-09-20

    申请号：US11717190

    申请日：2007-03-13

    申请人： Jun Azuma ,  Junichiro Otsubo

    发明人： Jun Azuma ,  Junichiro Otsubo

    IPC分类号： G03G15/00

    CPC分类号： G03G15/751 ,  G03G5/144

    摘要： Disclosed is an image forming apparatus composed of a combination of multi-layered electrophotographic photoreceptor wherein an undercoat layer is made of at least fine titanium oxide particles and a binder resin and has a thickness of 3 μm or less and the fine titanium oxide particles are surface treated with alumina and silica and have a number average primary particle size of 20 nm or less, and exposing means by LED exposure. Thus, an electrophotographic photoreceptor having good balance between dispersibility of titanium oxide and electrical insulation properties is obtained and image fog does not occur under high temperature and high humidity environment and also excellent image quality can be maintained during continuous printing under low temperature and low humidity environment.

    摘要翻译： 公开了一种图像形成装置，其由多层电子照相感光体的组合构成，其中底涂层由至少细小的氧化钛颗粒和粘合剂树脂制成，并且具有3μm或更小的厚度，并且细小的氧化钛颗粒是表面 用氧化铝和二氧化硅处理，数均原始粒径为20nm以下，通过LED曝光曝光。 因此，获得了在氧化钛的分散性和电绝缘性之间具有良好平衡的电子照相感光体，并且在高温和高湿度环境下不发生图像雾化，并且在低温和低湿度环境下连续印刷期间可以保持良好的图像质量 。