公开(公告)号：US20110171570A1

公开(公告)日：2011-07-14

申请号：US12860406

申请日：2010-08-20

申请人： Hitoshi TAKIMOTO ,  Masahiro Iwasaki ,  Daisuke Haruyama ,  Hidemi Nukada ,  Mitsuhide Nakamura ,  Koji Bando

发明人： Hitoshi TAKIMOTO ,  Masahiro Iwasaki ,  Daisuke Haruyama ,  Hidemi Nukada ,  Mitsuhide Nakamura ,  Koji Bando

IPC分类号： G03G15/00 ,  G03G21/18

CPC分类号： G03G5/14791 ,  G03G5/0539 ,  G03G5/0575 ,  G03G5/0614 ,  G03G5/076 ,  G03G5/14726 ,  G03G5/14747 ,  G03G5/14769 ,  G03G5/14786

摘要： The invention provides an electrophotographic photoreceptor having at least: a substrate; a photosensitive layer provided on the substrate; and an overcoat layer provided on the photosensitive layer. The overcoat layer of the photoreceptor includes at least: a cross-linked component that is obtained by cross-linking of at least one selected from a guanamine compound or a melamine compound and a charge-transporting material having at least one substituent group selected from —OH, —OCH3, —NH2, —SH, or —COOH; fluoro-resin particles; and a fluoro-alkyl group-containing copolymer. The ratio of fluorine atom present in an outermost surface of the overcoat layer as measured with energy dispersive X-ray analysis (EDS) is from approximately 1.0% by mass to approximately 20.0% by mass. The invention further provides a process cartridge, an image forming apparatus, and a method of producing the electrophotographic photoreceptor.

摘要翻译： 本发明提供一种至少具有：基材的电子照相感光体; 设置在基板上的感光层; 以及设置在感光层上的外涂层。 感光体的外涂层至少包括：通过交联选自胍胺化合物或三聚氰胺化合物中的至少一种和具有至少一个选自以下的取代基的电荷输送材料获得的交联成分： OH，-OCH 3，-NH 2，-SH或-COOH; 氟树脂颗粒; 和含氟烷基的共聚物。 用能量色散X射线分析（EDS）测定的外涂层的最表面存在的氟原子的比例为约1.0质量％〜约20.0质量％。 本发明还提供一种处理盒，图像形成装置和制造电子照相感光体的方法。

公开(公告)号：US08685600B2

公开(公告)日：2014-04-01

申请号：US12623916

申请日：2009-11-23

申请人： Hirofumi Nakamura ,  Keiko Matsuki ,  Shingo Hirahara ,  Takanori Suga ,  Daisuke Haruyama ,  Hirokazu Sakashita ,  Masahiro Iwasaki ,  Takayuki Yamashita ,  Mitsuhide Nakamura

发明人： Hirofumi Nakamura ,  Keiko Matsuki ,  Shingo Hirahara ,  Takanori Suga ,  Daisuke Haruyama ,  Hirokazu Sakashita ,  Masahiro Iwasaki ,  Takayuki Yamashita ,  Mitsuhide Nakamura

IPC分类号： G03G15/04 ,  G03G15/00

CPC分类号： G03G5/144 ,  G03G5/0542 ,  G03G5/0564 ,  G03G5/0592 ,  G03G5/0614 ,  G03G5/0696 ,  G03G5/1476 ,  G03G5/14769

摘要： There is provided an electrophotographic photoreceptor including a conductive substrate; an intermediate layer; a photosensitive layer; and a surface layer, in this order, the surface layer including two or more charge transporting materials each including a reactive substituent and respectively having mutually different ionization potentials, in an amount of 90% by weight or more relative to the total solid content of the surface layer, and the content ratio X of each of the two or more charge transporting materials satisfying the following Formula (1). X(n) represents a content ratio (weight %) of a charge transporting material that has the nth highest ionization potential among the two or more charge transporting materials; X(n−1) represents a content ratio (weight %) of a charge transporting material that has the (n−1)th highest ionization potential among the two or more charge transporting materials; and n is an integer of two or more and represents a variable equal to or lower than the number of charge transporting materials contained in the surface layer. X(n−1)≧X(n)  Formula (1).

摘要翻译： 提供一种电子照相感光体，包括导电性基材; 中间层 感光层; 以及表面层，依次为包含两个或更多个电荷输送材料的表面层，每个电荷输送材料各自包含反应性取代基并且分别具有相互不同的电离电位，相对于该固体成分的总固体含量为90重量％以上 表面层，以及满足下述式（1）的两种以上电荷输送材料的含有比率X。 X（n）表示两种以上电荷输送材料中具有第n高电离电位的电荷输送材料的含量比（重量％）。 X（n-1）表示两种以上电荷输送材料中具有第（n-1）个最高电离电位的电荷输送材料的含量比（重量％）。 n为2以上的整数，表示包含在表层中的电荷输送材料的数量以下的变量。 X（n-1）≥X（n）式（1）。

公开(公告)号：US08655220B2

公开(公告)日：2014-02-18

申请号：US12247794

申请日：2008-10-08

申请人： Masahiro Iwasaki ,  Katsumi Nukada ,  Wataru Yamada ,  Kenta Ide ,  Hirofumi Nakamura ,  Mitsuhide Nakamura ,  Koji Bando ,  Kaori Iemula ,  Kazuya Hongo ,  Yasuhiro Nida

发明人： Masahiro Iwasaki ,  Katsumi Nukada ,  Wataru Yamada ,  Kenta Ide ,  Hirofumi Nakamura ,  Mitsuhide Nakamura ,  Koji Bando ,  Kaori Iemula ,  Kazuya Hongo ,  Yasuhiro Nida

IPC分类号： G03G21/18

CPC分类号： G03G5/076 ,  G03G5/0612 ,  G03G5/064 ,  G03G5/07 ,  G03G5/071 ,  G03G5/075 ,  G03G5/14769

摘要： An electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on a surface of the conductive substrate, an outermost layer of the photosensitive layer containing a crosslinked product formed from at least one charge transporting material having at least one substituent selected from the group consisting of —OH, —OCH3, —NH2, —SH, and —COOH and at least one selected from a guanamine compound or a melamine compound, the content of the at least one charge transporting material being at least about 90% by weight, and the content of the at least one selected from the guanamine compound or the melamine compound being from about 0.1% by weight to about 5% by weight.

摘要翻译： 一种电子照相感光体，包括导电基底和设置在导电基底表面上的感光层，感光层的最外层含有由至少一种电荷输送材料形成的交联产物，该电荷输送材料具有至少一个选自以下的取代基： -OH，-OCH 3，-NH 2，-SH和-COOH和选自胍胺化合物或三聚氰胺化合物中的至少一种，所述至少一种电荷输送材料的含量为至少约90重量％，并且 从胍胺化合物或三聚氰胺化合物中选出的至少一种的含量为约0.1重量％至约5重量％。

公开(公告)号：US08268521B2

公开(公告)日：2012-09-18

申请号：US12466701

申请日：2009-05-15

申请人： Katsumi Nukada ,  Hirofumi Nakamura ,  Mitsuhide Nakamura ,  Koji Bando ,  Kenny-tuan T Dinh ,  Giuseppa Baranyi ,  Nan-Xing Hu ,  Michael Zak

发明人： Katsumi Nukada ,  Hirofumi Nakamura ,  Mitsuhide Nakamura ,  Koji Bando ,  Kenny-tuan T Dinh ,  Giuseppa Baranyi ,  Nan-Xing Hu ,  Michael Zak

IPC分类号： G03G5/00 ,  G03G15/00

CPC分类号： G03G5/071 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0668 ,  G03G5/075 ,  G03G5/076 ,  G03G5/142 ,  G03G5/144 ,  G03G2215/00957

摘要： According to an aspect of the invention, an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on a surface of the conductive substrate is provided. In the electrophotographic photoreceptor, an outermost layer of the photosensitive layer containing a crosslinked product formed from at least one charge transporting material having at least one substituent selected from the group consisting of —OH, —OCH3, —NH2, —SH, and —COOH, an acidic substance, and at least one compound selected from the group consisting of compounds represented by the following formula (A) and compounds represented by the following formula (B).

摘要翻译： 根据本发明的一个方面，提供一种电子照相感光体，其包括设置在导电性基板的表面上的导电性基板和感光层。 在电子照相感光体中，感光层的最外层包含由至少一种电荷输送材料形成的交联产物，该电荷输送材料具有至少一个选自-OH，-OCH 3，-NH 2，-SH和-COOH的取代基 ，酸性物质和选自由下式（A）表示的化合物和下式（B）表示的化合物中的至少一种化合物。

公开(公告)号：US06876371B2

公开(公告)日：2005-04-05

申请号：US10683273

申请日：2003-10-14

申请人： Takahiro Suzuki ,  Taketoshi Hoshizaki ,  Katsumi Nukada ,  Mitsuhide Nakamura ,  Kazuhiro Koseki ,  Takayuki Yamashita ,  Wataru Yamada ,  Koji Bando

发明人： Takahiro Suzuki ,  Taketoshi Hoshizaki ,  Katsumi Nukada ,  Mitsuhide Nakamura ,  Kazuhiro Koseki ,  Takayuki Yamashita ,  Wataru Yamada ,  Koji Bando

IPC分类号： G03G15/01 ,  G03G5/05 ,  G03G5/07 ,  G03G5/147 ,  G03G15/00 ,  G03G15/02 ,  G03G15/04 ,  G03G15/16 ,  H04N1/113 ,  B41J2/385 ,  G03G15/09

CPC分类号： G03G15/75 ,  G03G5/0578 ,  G03G5/14773 ,  G03G2215/00957

摘要： The invention provides an image forming apparatus comprising at least: an electrophotographic photoreceptor comprising at least a conductive substrate and a photosensitive layer provided on the conductive substrate; a charging device; an exposure device; a developing device; and a transfer device, wherein the exposure device is of a multi beam exposure system which has a surface emitting laser array having two or more light-emitting elements as an exposure light source and which scan the electrophotographic photoreceptor with plural light beams thereby forming electrostatic latent image, and wherein the outermost layer in the electrophotographic photoreceptor, positioned most distant from the conductive substrate, contains a silicon-containing resin containing at least a charge transporting compound or a characteristic group derived from a charge transporting compound, and having a structure in which bonds formed by crosslinking of an O atom with neighboring Si atoms are formed three dimensionally.

摘要翻译： 本发明提供一种图像形成装置，其至少包括：电子照相感光体，至少包括导电基底和设置在导电基底上的感光层; 充电装置; 曝光装置; 显影装置 以及转印装置，其中所述曝光装置是具有表面发射激光器阵列的多光束曝光系统，所述表面发射激光器阵列具有两个或更多个发光元件作为曝光光源，并且用多个光束扫描所述电子照相感光体，从而形成静电潜像 图像，并且其中位于最远离导电基底的电子照相感光体中的最外层包含至少含有电荷输送化合物或源自电荷输送化合物的特征基团的含硅树脂，并且具有以下结构： 由O原子与相邻的Si原子交联形成的键三维形成。

公开(公告)号：US09075326B2

公开(公告)日：2015-07-07

申请号：US13452238

申请日：2012-04-20

申请人： Jiro Korenaga ,  Keiko Matsuki ,  Masahiro Iwasaki ,  Mitsuhide Nakamura

发明人： Jiro Korenaga ,  Keiko Matsuki ,  Masahiro Iwasaki ,  Mitsuhide Nakamura

IPC分类号： G03G5/00 ,  G03G5/04 ,  G03G15/00 ,  G03G5/05 ,  G03G5/06 ,  G03G5/07 ,  G03G5/147

CPC分类号： G03G5/0539 ,  G03G5/0592 ,  G03G5/0596 ,  G03G5/0614 ,  G03G5/071 ,  G03G5/075 ,  G03G5/14726 ,  G03G5/14786 ,  G03G5/14791 ,  G03G5/14795 ,  G03G2215/00957

摘要： Provided is an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein an uppermost surface layer thereof is constituted with a cured film of a composition that contains at least two kinds of reactive charge transporting materials selected from a first reactive charge transporting material having an —OH group as a reactive functional group and a second reactive charge transporting material having an —OCH3 group as a reactive functional group, fluororesin particles, and an alkyl fluoride group-containing copolymer having repeating units represented by the following Structural Formulae A and B, and a relative dielectric constant ∈r of the uppermost surface layer satisfies the following Formula (1):

摘要翻译： 本发明提供一种电子照相感光体，其包括导电性基材和设置在导电性基材上的感光层，其最表面层由含有至少两种选自第一反应性的反应性电荷输送材料的组合物的固化膜构成 具有-OH基作为反应性官能团的电荷输送材料和具有-OCH 3基作为反应性官能团的第二反应性电荷输送材料，氟树脂颗粒和含有以下结构的重复单元的含氟烷基的共聚物 公式A和B以及最上表面层的相对介电常数εr满足下式（1）：

公开(公告)号：US5085732A

公开(公告)日：1992-02-04

申请号：US409681

申请日：1989-09-20

申请人： Mitsuhide Nakamura ,  Shiro Kimura

发明人： Mitsuhide Nakamura ,  Shiro Kimura

IPC分类号： G03G5/08 ,  G03G5/00 ,  G03G5/082

CPC分类号： G03G5/005 ,  G03G5/08207

摘要： A method for removing an amorphous selenium-containing photosensitive layer from an electrophotographic photoreceptor including an electroconductive metallic substrate having thereon the amorphous selenium-containing photo-sensitive layer using a method in which the combination of substrate and selenium-containing photosensitive layer is treated with an aqueous solution of sodium sulfide or sodium thiourea.

摘要翻译： 一种从包含导电性金属基板的电子照相感光体中除去含有非晶硒感光层的方法，所述电子照相感光体上具有含有非晶硒的光敏层的方法，其中将基板和含硒感光层的组合用 硫化钠水溶液或硫脲钠水溶液。

公开(公告)号：US6094551A

公开(公告)日：2000-07-25

申请号：US303668

申请日：1999-05-03

申请人： Mitsuhide Nakamura ,  MasahiKo Hozumi

发明人： Mitsuhide Nakamura ,  MasahiKo Hozumi

IPC分类号： B41J2/525 ,  G03G15/01 ,  G03G21/14 ,  G03G15/00 ,  G01D15/06

CPC分类号： G03G15/0173 ,  G03G15/0121 ,  G03G2215/0177

摘要： In the formation of a multicolor image for generating a color print by repeating operation for transferring on an intermediate transfer member every color after one color toner image is formed on a photoreceptor drum, when an image of each color is written on the photoconductor, the image writing start position of each color is differentiated in a process direction of the photoconductor on the basis of a position reference mark on the intermediate transfer member detected by a sensor. This prevents a defect on the photoconductor from being enlarged and visually conspicuous.

摘要翻译： 在形成用于通过在感光鼓上形成一色调色剂图像之后的每种颜色的中间转印部件上的转印的重复操作的多色图像的形成中，当将每种颜色的图像写在感光鼓上时，图像 基于由传感器检测到的中间转印部件上的位置参考标记，在感光体的处理方向上区分每种颜色的写入开始位置。 这防止光电导体上的缺陷被放大并且在视觉上显着。

公开(公告)号：US08669028B2

公开(公告)日：2014-03-11

申请号：US13052405

申请日：2011-03-21

申请人： Yukimi Kawabata ,  Yuko Yamano ,  Kazuyuki Tada ,  Kenji Ikeda ,  Mitsuhide Nakamura

发明人： Yukimi Kawabata ,  Yuko Yamano ,  Kazuyuki Tada ,  Kenji Ikeda ,  Mitsuhide Nakamura

IPC分类号： G03G5/147

CPC分类号： G03G15/751 ,  G03G5/0525 ,  G03G5/0539 ,  G03G5/0575 ,  G03G5/0614 ,  G03G5/071 ,  G03G5/14726 ,  G03G5/14769 ,  G03G5/14786 ,  G03G5/14791 ,  G03G5/14795 ,  G03G2215/00957

摘要： An electrophotographic photoreceptor is provided, which includes: a substrate; a photosensitive layer; and a surface protective layer, in this order, in which the protective layer contains a crosslinked product of a curable charge transporting material in a content of from about 90 to 98% by weight, and fluorinated resin particles in a content of from about 2 to 10% by weight, and the protective layer satisfies Formula (1): 0.5≦b/a≦1, wherein, “a” represents a ratio of fluorine atoms to the sum of carbon atoms, oxygen atoms, and fluorine atoms present in a region of the protective layer ranging from the photosensitive layer side surface thereof to a point corresponding to about ⅔ of the thickness thereof, and “b” represents the ratio in a region of the protective layer ranging from the outer surface thereof to a point corresponding to about ⅓ of the thickness thereof.

摘要翻译： 提供电子照相感光体，其包括：基板; 感光层; 和表面保护层，其中保护层含有约90至98重量％含量的可固化电荷输送材料的交联产物，含氟树脂颗粒的含量为约2至 10重量％，保护层满足式（1）：0.5≤b/a≤1，其中，“a”表示氟原子与碳原子之间存在的碳原子，氧原子和氟原子之和的比例 保护层的区域从感光层侧表面到对应于其厚度的约2/3的点，“b”表示保护层的从其外表面到点的区域中的比例 对应于其厚度的约1/3。