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    Image forming method and electrostatic image developing toner
    23.
    发明授权
    Image forming method and electrostatic image developing toner 有权
    图像形成方法和静电图像显影调色剂

    公开(公告)号：US06689522B2

    公开(公告)日：2004-02-10

    申请号：US10126255

    申请日：2002-04-19

    申请人： Hiroshi Yamazaki ,  Ken Ohmura ,  Akihiko Itami ,  Meizo Shirose ,  Asao Matsushima ,  Hiroyuki Kozuru ,  Tomoko Tanma

    发明人： Hiroshi Yamazaki ,  Ken Ohmura ,  Akihiko Itami ,  Meizo Shirose ,  Asao Matsushima ,  Hiroyuki Kozuru ,  Tomoko Tanma

    IPC分类号： G03G1301

    CPC分类号： G03G9/0819 ,  G03G13/08 ,  G03G2215/0119

    摘要： An image forming method, comprising steps of: forming a latent image on a photoreceptor having an electrically conductive support having thereon a charge generating layer and a charge transporting layer; developing the latent image with a developer containing a toner to form a toner image on the photoreceptor; and transferring the toner image onto an image receiving member, wherein the ratio of 50% volume particle diameter to 50% number particle diameter of the toner is within the range of 1.0 to 1.15, the ratio of the cumulative 75% volume particle diameter from the largest particle diameter to the cumulative 75% number particle diameter from the largest particle diameter of the toner is 1.0 to 1.20 and the number of toner particles having a particle diameter of not larger than 0.7×Dp50 is at most 10% of the number of all the toner particles in the toner.

    摘要翻译： 一种图像形成方法，包括以下步骤：在其上具有电荷产生层和电荷输送层的导电载体的感光体上形成潜像; 用含有调色剂的显影剂显影潜像以在感光体上形成调色剂图像; 并将调色剂图像转印到图像接收部件上，其中调色剂的50体积粒径与50％数量的粒径之比在1.0至1.15的范围内，累积的75％体积粒径与 最大粒径与调色剂的最大粒径的累积75％数量的粒径为1.0〜1.20，粒径不大于0.7×Dp50的调色剂颗粒数量为全部数量的10％以下 调色剂中的调色剂颗粒。

    Electrophotographic photoreceptor, image forming method, image forming apparatus and process cartridge
    25.
    发明授权
    Electrophotographic photoreceptor, image forming method, image forming apparatus and process cartridge 有权
    电子照相感光体，成像方法，成像设备和处理盒

    公开(公告)号：US08241824B2

    公开(公告)日：2012-08-14

    申请号：US12817684

    申请日：2010-06-17

    申请人： Akihiko Itami

    发明人： Akihiko Itami

    IPC分类号： G03G5/00

    CPC分类号： G03G15/751 ,  G03G5/047 ,  G03G5/0517 ,  G03G5/0605 ,  G03G5/0614 ,  G03G5/0696

    摘要： An electrophotographic photoreceptor comprising an electrically conductive support having thereon a photo sensitive layer having a laminated structure comprising a charge generation layer and a charge transport layer, wherein the charge generation layer comprises a titanyl phthalocyanine pigment having a crystal structure exhibiting the following peaks of Bragg angles 2θ (±0.2°) of X-ray powder diffraction employing a characteristic X-ray of a CuKα radiation (having a wavelength of 1.542 Å): at least a largest diffraction peak at 27.2°, major diffraction peaks at 9.4°, 9.6° and 24.0°, and a diffraction peak of a lowest angle at 7.3° while exhibiting no peak between the peaks of 7.3° and 9.4° and no peak at 26.3°; and the charge transport layer comprises a compound represented by Formula (1) or (2), wherein A, B, C and D are not simultaneously a hydrogen atom:

    摘要翻译： 一种电子照相感光体，其特征在于，具有导电性支持体，其上具有包含电荷产生层和电荷输送层的叠层结构的感光层，其中，所述电荷产生层包含具有下列峰的Bragg角的晶体结构的钛酞菁颜料 2＆thetas; 使用CuKα辐射（波长为1.542）的特征X射线的X射线粉末衍射（27.2°）处的至少最大衍射峰，9.4°，9.6°的主要衍射峰和 24.0°，最低角为7.3°的衍射峰，在7.3°和9.4°的峰之间没有峰，在26.3°处没有峰; 电荷传输层包含由式（1）或（2）表示的化合物，其中A，B，C和D不同时为氢原子：

    Electrophotographic photoreceptor and image forming method
    27.
    发明授权
    Electrophotographic photoreceptor and image forming method 有权
    电子照相感光体和成像方法

    公开(公告)号：US08029955B2

    公开(公告)日：2011-10-04

    申请号：US12361642

    申请日：2009-01-29

    申请人： Eiichi Sakai ,  Yoshihiko Eto ,  Kimiyuki Itou ,  Akihiko Itami ,  Takeo Oshiba

    发明人： Eiichi Sakai ,  Yoshihiko Eto ,  Kimiyuki Itou ,  Akihiko Itami ,  Takeo Oshiba

    IPC分类号： G03G15/00

    CPC分类号： G03G15/751 ,  G03G5/00 ,  G03G5/04 ,  G03G5/0525 ,  G03G5/0696 ,  G03G15/757

    摘要： Provide is an electrophotographic photoreceptor exhibiting excellent evenness of halftone images together with fine line reproduction, and an image forming method thereof, as to a photoreceptor in which an oxytitanium phthalocyanine pigment having a maximum diffraction peak at a Bragg angle (2θ±0.2°) of 27.2° in CuKα X-ray diffraction. Also disclosed is an electrophotographic photoreceptor possessing a body having cylindrical conductive support provided thereon photosensitive layer containing oxytitanium phthalocyanine pigment having maximum diffraction peak at a Bragg angle (2θ±0.2°) of 27.2° in CuKα X-ray diffraction, and flanges jointed at both ends of the body, wherein at least one of flanges is fitted with driving shaft having drive hole having at least 3 sides, and a ratio B/A of cross-sectional area B of engaging part of rotation shaft to rotate the electrophotographic photoreceptor with respect to cross-sectional area A of the drive hole is 0.890-0.998.

    摘要翻译： 提供一种电子照相感光体，其具有优异的半色调图像均匀性以及细线再现及其成像方法，其中具有在布拉格角（2θ;±0.2°）处具有最大衍射峰的氧钛酞菁颜料， 在CuKαX射线衍射中为27.2°。 还公开了一种电子照相感光体，其具有在CuKαX射线衍射中在其上设置有具有最大衍射峰（在布拉格角（2θ±0.2°））为27.2°的最大衍射峰的感光层的感光层，并且接合在 主体的两端，其中至少一个凸缘装配有具有至少3个侧面的驱动孔的驱动轴和旋转轴的接合部分的横截面积B的比率B / A，以使电子照相感光体与 相对于驱动孔的截面积A为0.890-0.998。

    Image forming method
    28.
    发明授权
    Image forming method 有权
    图像形成方法

    公开(公告)号：US07897312B2

    公开(公告)日：2011-03-01

    申请号：US10939356

    申请日：2004-09-14

    申请人： Akihiko Itami

    发明人： Akihiko Itami

    IPC分类号： G03G5/147

    CPC分类号： G03G5/142 ,  G03G5/047 ,  G03G5/10

    摘要： A photoreceptor for electrophotography is disclosed. Thickness of the under coat layer is 6-15 μm, thickness of the charge transport layer is 5-15 μm, and coefficient of working function of the under coat layer α is not more than 0.8.

    摘要翻译： 公开了一种用于电子照相术的感光体。 底涂层的厚度为6〜15μm，电荷输送层的厚度为5〜15μm，底涂层α的作用功能系数不大于0.8。