公开(公告)号：US07964327B2

公开(公告)日：2011-06-21

申请号：US11762296

申请日：2007-06-13

申请人： Masanobu Gondoh ,  Akihiro Sugino ,  Hideo Nakamori ,  Shinji Nohsho ,  Tomoyuki Shimada ,  Takaaki Ikegami

发明人： Masanobu Gondoh ,  Akihiro Sugino ,  Hideo Nakamori ,  Shinji Nohsho ,  Tomoyuki Shimada ,  Takaaki Ikegami

IPC分类号： G03G5/047

CPC分类号： G03G5/14708 ,  G03G5/0525 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0679 ,  G03G5/14704 ,  G03G5/14734 ,  G03G5/14752

摘要： An electrophotographic photoreceptor, including an electroconductive substrate; and a photosensitive layer, located overlying the electroconductive substrate, wherein an outermost layer of the electrophotographic photoreceptor includes an amine compound and a charge transport material, and wherein the amine compound includes an amine site having an electrostatic potential with a dimensionless unit not greater than −0.27.

摘要翻译： 电子照相感光体，包括导电性基材; 以及位于导电基底上的感光层，其中电子照相感光体的最外层包括胺化合物和电荷输送材料，并且其中胺化合物包括具有静电势的胺位点，其具有不大于 - 0.27。

公开(公告)号：US07879519B2

公开(公告)日：2011-02-01

申请号：US12030886

申请日：2008-02-14

申请人： Naohiro Toda ,  Yoshiki Yanagawa ,  Takaaki Ikegami ,  Makoto Yasuda ,  Takeshi Orito

发明人： Naohiro Toda ,  Yoshiki Yanagawa ,  Takaaki Ikegami ,  Makoto Yasuda ,  Takeshi Orito

IPC分类号： G03G15/00

CPC分类号： G03G5/14791 ,  G03G5/0507 ,  G03G5/0542 ,  G03G5/056 ,  G03G5/0564 ,  G03G5/0575 ,  G03G5/0614 ,  G03G5/064 ,  G03G5/0696 ,  G03G2215/00957

摘要： This invention relates to image bearing member and an image forming apparatus that employs the image bearing member. The image bearing member contains an electroconductive substrate; a charge generation layer; a charge transport layer; a cross-linking surface protective layer, and a monomer having one radical polymerizable functional group with a charge transport structure. The cross-linking surface protective layer is formed by curing a monomer having at least three radical polymerizable functional groups without a charge transport structure. For the image bearing member, the ratio of the layer thickness of the cross linking surface protective layer to the layer thickness of the charge transport layer is from 0.7 to 1.3.

摘要翻译： 本发明涉及图像承载部件和采用图像承载部件的图像形成装置。 图像承载部件包含导电基板; 电荷产生层; 电荷传输层; 交联表面保护层和具有带电荷输送结构的具有一个自由基聚合性官能团的单体。 交联表面保护层通过固化具有至少三个可自由基聚合的官能团的单体而没有电荷传输结构而形成。 对于图像承载部件，交联表面保护层的层厚度与电荷输送层的层厚度之比为0.7〜1.3。

公开(公告)号：US20070287083A1

公开(公告)日：2007-12-13

申请号：US11762296

申请日：2007-06-13

申请人： Masanobu Gondoh ,  Akihiro Sugino ,  Hideo Nakamori ,  Shinji Nohsho ,  Tomoyuki Shimada ,  Takaaki Ikegami

发明人： Masanobu Gondoh ,  Akihiro Sugino ,  Hideo Nakamori ,  Shinji Nohsho ,  Tomoyuki Shimada ,  Takaaki Ikegami

IPC分类号： G03G5/147

CPC分类号： G03G5/14708 ,  G03G5/0525 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0679 ,  G03G5/14704 ,  G03G5/14734 ,  G03G5/14752

摘要： An electrophotographic photoreceptor, including an electroconductive substrate; and a photosensitive layer, located overlying the electroconductive substrate, wherein an outermost layer of the electrophotographic photoreceptor includes an amine compound and a charge transport material, and wherein the amine compound includes an amine site having an electrostatic potential with a dimensionless unit not greater than −0.27.

摘要翻译： 电子照相感光体，包括导电性基材; 以及位于导电基底上的感光层，其中电子照相感光体的最外层包括胺化合物和电荷输送材料，并且其中胺化合物包括具有静电势的胺位点，其具有不大于 - 0.27。

公开(公告)号：US07220522B2

公开(公告)日：2007-05-22

申请号：US10792607

申请日：2004-03-04

申请人： Takaaki Ikegami ,  Tomoyuki Shimada ,  Yasuo Suzuki

发明人： Takaaki Ikegami ,  Tomoyuki Shimada ,  Yasuo Suzuki

IPC分类号： G03G5/00

CPC分类号： G03G5/0517 ,  G03G5/056 ,  G03G5/0605 ,  G03G5/0614 ,  G03G5/0668 ,  G03G5/075

摘要： A photoreceptor including a photosensitive layer including a specific diamine compound, or a photoreceptor including an electroconductive substrate; a photosensitive layer located overlying the electroconductive substrate; and optionally a protective layer located overlying the photosensitive layer, wherein an outermost layer of the photoreceptor includes a filler, an organic compound having an acid value of from 10 to 700 mgKOH/g and a specific diamine compound. An image forming method, an image forming apparatus and a process cartridge using the photoreceptor are also provided. A method for manufacturing the photoreceptor including the steps of preparing a coating liquid including the filler, the organic compound, the specific diamine compound and an antioxidant; and coating the coating liquid is also provided.

摘要翻译： 包含特定二胺化合物的感光层或包含导电性基材的感光体的感光体; 位于导电衬底上的感光层; 以及任选的覆盖感光层的保护层，其中感光体的最外层包括填料，酸值为10-700mgKOH / g的有机化合物和特定的二胺化合物。 还提供了一种图像形成方法，图像形成装置和使用感光体的处理盒。 一种制造感光体的方法，包括以下步骤：制备包括填料，有机化合物，特定二胺化合物和抗氧化剂的涂布液; 并且还提供涂布液体。

公开(公告)号：US07112392B2

公开(公告)日：2006-09-26

申请号：US10784872

申请日：2004-02-24

申请人： Tomoyuki Shimada ,  Takaaki Ikegami ,  Yasuo Suzuki

发明人： Tomoyuki Shimada ,  Takaaki Ikegami ,  Yasuo Suzuki

IPC分类号： G03G5/06

CPC分类号： G03G5/075 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0666 ,  G03G5/0668 ,  G03G5/0672 ,  G03G5/076 ,  G03G5/078

摘要： An electrophotographic photoreceptor including an electroconductive substrate and a photosensitive layer on the electroconductive substrate, wherein the photosensitive layer includes at least a compound having a substituted or unsubstituted alkylamino group and a charge transport material, and wherein an oxidation potential (Eox1) of the substituted or unsubstituted alkylamino group and an oxidation potential (Eox2) of the charge transport material satisfy the following relationship (I): Eox1−Eox2≧−0.2.  (I)

摘要翻译： 在导电性基体上具有导电性基体和感光层的电子照相感光体，其中感光层至少含有具有取代或未取代的烷基氨基的化合物和电荷输送性物质，其中，取代或未取代的氧化电位（Eox1） 未取代的烷基氨基和电荷输送材料的氧化电位（Eox2）满足以下关系式（I）：<？in-line-formula description =“In-line formula”end =“lead”？> Eox1-Eox2 = -0.2。 （I）<？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US20050118518A1

公开(公告)日：2005-06-02

申请号：US10938585

申请日：2004-09-13

申请人： Takaaki Ikegami ,  Shinji Nohsho ,  Eiji Kurimoto ,  Hidetoshi Kami ,  Akihiro Sugino ,  Yasuyuki Yamashita ,  Hideo Nakamori ,  Takeshi Takada

发明人： Takaaki Ikegami ,  Shinji Nohsho ,  Eiji Kurimoto ,  Hidetoshi Kami ,  Akihiro Sugino ,  Yasuyuki Yamashita ,  Hideo Nakamori ,  Takeshi Takada

IPC分类号： G03G5/047 ,  G03G5/06 ,  G03G5/147 ,  G03G13/00 ,  G03G15/00

CPC分类号： G03G5/14708 ,  G03G5/0614

摘要： The present invention relates to an electrophotographic photoconductor comprising a photoconductive layer, a protective layer, and a conductive support, wherein the protective layer is disposed as the outermost layer of the photoconductive layer, and 20% by volume to 60% by volume of fine particles of fluorine-contained resin and at least one compound selected from amine aromatic compounds and hydroxy aromatic compounds are incorporated into the protective layer. According to the present invention, high durability may be achieved, image degradation such as lags may be controlled from the increase of residual potential and decrease of charging, and high quality images may be formed stably even after the prolonged and repeated usage. The present invention also relates to an electrophotographic process, an electrophotographic apparatus and a process cartridge for the electrophotographic apparatus which utilize the electrophotographic photoconductor respectively.

摘要翻译： 本发明涉及一种包括光电导层，保护层和导电载体的电子照相感光体，其中保护层被设置为光电导层的最外层，并且20体积％至60体积％的细颗粒 的含氟树脂和至少一种选自胺芳族化合物和羟基芳族化合物的化合物引入到保护层中。 根据本发明，可以实现高耐久性，可以从残留电位的增加和充电的减少来控制诸如滞后的图像劣化，并且即使在长时间和重复使用之后也可以稳定地形成高质量的图像。 本发明还涉及分别利用电子照相感光体的电子照相方法，电子照相设备和用于电子照相设备的处理盒。

公开(公告)号：US20050105942A1

公开(公告)日：2005-05-19

申请号：US11019282

申请日：2004-12-23

申请人： Eiji Kurimoto ,  Ryohichi Kitajima ,  Yoshiaki Kawasaki ,  Akihiro Sugino ,  Takaaki Ikegami

发明人： Eiji Kurimoto ,  Ryohichi Kitajima ,  Yoshiaki Kawasaki ,  Akihiro Sugino ,  Takaaki Ikegami

IPC分类号： G03G5/04 ,  G03G5/047 ,  G03G5/05 ,  G03G5/147 ,  G03G21/00 ,  G03G21/10

CPC分类号： G03G5/14704 ,  G03G5/0507 ,  G03G21/0035 ,  G03G21/0076 ,  G03G2221/001

摘要： An image forming apparatus including a photoreceptor having an electroconductive substrate, a photosensitive layer overlying the electroconductive substrate, and a protection layer including an inorganic filler in an amount of from 3 to 25% by weight based on total weight of the protection layer and a binder resin, and overlying the photosensitive layer. The apparatus further including a charger, an irradiator, an image developer, and a transferer transferring a toner image onto a transfer material. The apparatus also includes a cleaner cleaning the photoreceptor, including a rotatable core and a looped brush fiber provided on the surface of the rotatable core so as to contact the photoreceptor. A top of the looped brush fiber is positioned on an upstream side from a root of the looped brush fiber relative to a rotating direction of the rotatable core.

公开(公告)号：US20050053853A1

公开(公告)日：2005-03-10

申请号：US10893302

申请日：2004-07-19

申请人： Akihiro Sugino ,  Shinji Nousho ,  Takaaki Ikegami ,  Eiji Kurimoto ,  Hideo Nakamori ,  Hidetoshi Kami ,  Yasuyuki Yamashita

发明人： Akihiro Sugino ,  Shinji Nousho ,  Takaaki Ikegami ,  Eiji Kurimoto ,  Hideo Nakamori ,  Hidetoshi Kami ,  Yasuyuki Yamashita

IPC分类号： G03G5/05 ,  G03G5/147 ,  G03G5/047

CPC分类号： G03G5/14726 ,  G03G5/0539

摘要： An electrophotographic photoreceptor including an electroconductive substrate and a photosensitive layer located overlying the electroconductive substrate, wherein an outermost layer of the electrophotographic photoreceptor includes a particulate fluorine-containing resin, and wherein a primary particle of the particulate fluorine-containing resin and a secondary particle formed of agglomerated primary particles thereof, which are projected from a surface of the outermost layer and have an average particle diameter of from 0.15 to 3 μm, are present in an area ratio not less than 10% based on total surface area of the outermost layer.

摘要翻译： 一种电子照相感光体，包括导电性基体和位于导电性基体上的感光层，其中电子照相感光体的最外层含有含氟树脂颗粒，其中形成含氟树脂粒子和二次粒子的一次粒子 从最外层的表面突出而具有0.15〜3μm的平均粒径的聚集的一次粒子的面积比以最外层的总表面积为10％以上。

公开(公告)号：US20050026058A1

公开(公告)日：2005-02-03

申请号：US10900204

申请日：2004-07-28

申请人： Hidetoshi Kami ,  Shinji Nousho ,  Takaaki Ikegami ,  Eiji Kurimoto ,  Hideo Nakamori ,  Akihiro Sugino ,  Yasuyuki Yamashita

发明人： Hidetoshi Kami ,  Shinji Nousho ,  Takaaki Ikegami ,  Eiji Kurimoto ,  Hideo Nakamori ,  Akihiro Sugino ,  Yasuyuki Yamashita

IPC分类号： G03G5/047 ,  G03G5/05 ,  G03G5/07 ,  G03G5/147

CPC分类号： G03G5/14734 ,  G03G5/047 ,  G03G5/0539 ,  G03G5/0546 ,  G03G5/14726

摘要： An electrophotographic photoreceptor including an electroconductive substrate; a photosensitive layer overlying the electroconductive substrate optionally via an undercoat layer; and optionally a protective layer overlying the photosensitive layer, wherein an outermost layer of the electrophotographic photoreceptor comprises a binder resin; a particulate fluorine-containing resin in an amount of from 20 to 70% by volume based on total volume of the outermost layer, wherein a surface free energy of the particulate fluorine-containing resin is larger than a surface free energy of the binder resin; and a fluorochemical surfactant in an amount of from 5 to 70% by weight based on total weight of the binder resin.

摘要翻译： 包含导电基片的电子照相感光体; 可选地通过底涂层覆盖导电基材上的感光层; 以及任选的覆盖感光层的保护层，其中电子照相感光体的最外层包含粘合剂树脂; 相对于最外层的总体积为20〜70体积％的颗粒状含氟树脂，其中，含氟树脂颗粒的表面自由能大于粘合剂树脂的表面自由能; 和基于粘合剂树脂的总重量的5-70重量％的含氟表面活性剂。

公开(公告)号：US08263297B2

公开(公告)日：2012-09-11

申请号：US12323096

申请日：2008-11-25

申请人： Takaaki Ikegami ,  Takeshi Takada ,  Toshihiko Koizumi ,  Hideki Nakamura ,  Hajime Suzuki ,  Keisuke Shimoyama ,  Kohsuke Yamamoto ,  Eiji Kurimoto

发明人： Takaaki Ikegami ,  Takeshi Takada ,  Toshihiko Koizumi ,  Hideki Nakamura ,  Hajime Suzuki ,  Keisuke Shimoyama ,  Kohsuke Yamamoto ,  Eiji Kurimoto

IPC分类号： G03G5/047 ,  G03G5/06

CPC分类号： G03G5/0614 ,  G03G5/0605 ,  G03G5/0668 ,  G03G5/0679 ,  G03G5/0683 ,  G03G15/75

摘要： An electrophotographic photoconductor including a conductive support and a photosensitive layer, wherein the photosensitive layer contains a charge generation agent, a charge transport agent and a binder resin, and wherein the charge generation agent contains an asymmetric disazo pigment represented by General Formula (I), the charge transport agent contains a triphenylamine compound represented General Formula (IX), and the mass ratio of the charge transport agent to the binder resin is 0.3 to 2.0, where R1 and R2 each represent a substituted or unsubstituted alkyl group, alkoxy group, aryl group or heterocyclic group, provided that R1 and R2 are different, where R3 to R5 each represent hydrogen, a halogen atom, an alkyl group having 1 to 6 carbon atoms, which may have a substituent, an alkoxy group having 1 to 6 carbon atoms, which may have a substituent, or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms.

摘要翻译： 一种电子照相感光体，包括导电性支持体和感光层，其中感光层含有电荷产生剂，电荷输送剂和粘合剂树脂，其中电荷产生剂含有由通式（I）表示的不对称双偶氮颜料， 电荷输送剂含有通式（IX）所示的三苯胺化合物，电荷输送剂与粘合剂树脂的质量比为0.3〜2.0，其中，R1和R2各自表示取代或未取代的烷基，烷氧基，芳基 基团或杂环基团，条件是R 1和R 2不同，其中R 3至R 5各自表示氢，卤素原子，具有1至6个碳原子的烷基，其可以具有取代基，具有1至6个碳原子的烷氧基 ，或可以具有取代基的取代或未取代的碳原子数为6〜12的芳基。