公开(公告)号：US20180088475A1

公开(公告)日：2018-03-29

申请号：US15801286

申请日：2017-11-01

申请人： FUJI ELECTRIC CO., LTD.

发明人： Shinjiro SUZUKI ,  Tomoki HASEGAWA ,  Hirotaka KOBAYASHI

IPC分类号： G03G5/05 ,  G03G5/047 ,  G03G5/06

CPC分类号： G03G5/0564 ,  G03G5/047 ,  G03G5/0525 ,  G03G5/056 ,  G03G5/0612 ,  G03G5/0614 ,  G03G5/0629 ,  G03G5/0668 ,  G03G5/0672 ,  G03G5/0696

摘要： An electrophotographic photoreceptor causing no image defect even in long-term use and has excellent wear performance, a method of producing the same, and an electrophotographic device are provided. The electrophotographic photoreceptor includes a photosensitive layer on a conductive substrate. The slope k of a straight line obtained by plotting the average film density of outermost layer and the boiling point of solvent used for the formation of the outermost layer along the ordinate and the abscissa, respectively, is 1.50E-4 (g/cm3·° C.) or greater, and the difference in film density of the outermost layer between the surface side and the side close to the conductive substrate is 0.030 g/cm3 or less.

公开(公告)号：US20180046100A1

公开(公告)日：2018-02-15

申请号：US15668774

申请日：2017-08-04

申请人： KYOCERA Document Solutions Inc.

发明人： Keiji MARUO ,  Tomofumi SHIMIZU ,  Jun AZUMA

IPC分类号： G03G5/05 ,  G03G5/06 ,  G03G5/10 ,  G03G15/00

CPC分类号： G03G5/056 ,  G03G5/0609 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0668 ,  G03G5/0672 ,  G03G5/0696 ,  G03G5/102 ,  G03G15/75

摘要： An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The photosensitive layer is a single-layer photosensitive layer. The photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The binder resin contains a polyarylate resin. The polyatylate resin is represented by general formula (1). The hole transport material contains a compound represented by general formula (HTM1), (HTM2), (HTM3), (HTM4), (HTM5), (HTM6), or (HTM7). The photosensitive layer has a scratch resistance depth of no greater than 0.50 μm. The photosensitive layer has a Vickers hardness of at least 17.0 HV.

公开(公告)号：US08278016B2

公开(公告)日：2012-10-02

申请号：US12480702

申请日：2009-06-09

申请人： Keisuke Shimoyama ,  Eiji Kurimoto ,  Takaaki Ikegami ,  Kohsuke Yamamoto ,  Tadayoshi Uchida ,  Takumi Shinohara ,  Hajime Suzuki

发明人： Keisuke Shimoyama ,  Eiji Kurimoto ,  Takaaki Ikegami ,  Kohsuke Yamamoto ,  Tadayoshi Uchida ,  Takumi Shinohara ,  Hajime Suzuki

IPC分类号： G03G5/06

CPC分类号： G03G5/0517 ,  G03G5/0605 ,  G03G5/0609 ,  G03G5/0611 ,  G03G5/0614 ,  G03G5/0668 ,  G03G5/0672

摘要： An electrophotographic photoconductor including an electroconductive support and a photoconductive layer provided thereon, wherein the photoconductive layer includes a charge generating material, an electron transporting material and a hole transporting material, the electron transporting material being a diphenoquinone compound represented by formula (1) described herein, the hole transporting material being a compound represented by formula (2) described herein.

摘要翻译： 一种电子照相感光体，包括导电载体和设置在其上的光电导层，其中光电导层包括电荷产生材料，电子传输材料和空穴传输材料，电子传输材料是本文所述的由式（1）表示的联苯醌化合物 ，空穴传输材料是由本文所述的式（2）表示的化合物。

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：US20110183246A1

公开(公告)日：2011-07-28

申请号：US12921374

申请日：2009-07-09

申请人： Fengqiang Zhu ,  Yoichi Nakamura ,  Ikuo Takaki ,  Seizo Kitagawa ,  Shinjirou Suzuki

发明人： Fengqiang Zhu ,  Yoichi Nakamura ,  Ikuo Takaki ,  Seizo Kitagawa ,  Shinjirou Suzuki

IPC分类号： G03G5/047 ,  C07C211/43

CPC分类号： C07C211/54 ,  G03G5/0614 ,  G03G5/0668 ,  G03G5/0696

摘要： An ethylene compound having general formula (I) below: wherein R1, R2 and R3 are each independently a hydrogen atom, a halogen atom, an alkyl group of 1 to 6 carbons or an alkoxyl group of 1 to 6 carbons; R4 is an alkyl group of 1 to 3 carbons, phenyl or tolyl; and Ar is an aryl group of 7 to 20 carbons or a heterocyclic group, functions as a charge transport material in an electrophotographic photoreceptor. This compound suppresses photodeterioration, causes little light-induced fatigue, can prevent a rise in the residual potential associated with such light-induced fatigue, has stable properties as an electrophotographic photoreceptor even when used for an extended period of time, and is able to stably provide a satisfactory image.

摘要翻译： 具有通式（I）的乙烯化合物：其中R1，R2和R3各自独立地为氢原子，卤素原子，1至6个碳原子的烷基或1至6个碳原子的烷氧基; R4是1〜3个碳的烷基，苯基或甲苯基; 并且Ar为7〜20个碳原子的芳基或杂环基，作为电子照相感光体中的电荷输送材料起作用。 这种化合物抑制光老化，引起轻微的疲劳，可以防止与这种光诱导疲劳相关的残余电位的上升，即使长时间使用也具有作为电子照相感光体的稳定性能，并且能够稳定地 提供令人满意的图像。

公开(公告)号：US07625682B2

公开(公告)日：2009-12-01

申请号：US11198405

申请日：2005-08-08

申请人： Tomoko Kanazawa ,  Kotaro Fukushima

发明人： Tomoko Kanazawa ,  Kotaro Fukushima

IPC分类号： G03G5/06

CPC分类号： G03G5/0672 ,  G03G5/00 ,  G03G5/0596 ,  G03G5/0601 ,  G03G5/0605 ,  G03G5/0614 ,  G03G5/0666 ,  G03G5/0668

摘要： An electrophotographic photoreceptor having an organic photosensitive layer at the surface layer is provided which can improve the wear resistance, durability and operation stability of the surface layer and can form images with no injury and unevenness in the density for a long period of time. The electrophotographic photoreceptor includes a conductive substrate, an undercoat layer, and a photosensitive layer having a charge generating layer and a charge transporting layer. In the photoreceptor, the photosensitive layer has a creep value CIτ of 2.70% or more and an elastic ratio ηHU of 47% or more in a case where an indentation maximum load of 5 mN is loaded on the surface under a circumstance at a temperature of 25° C. and at a relatively humidity of 50%.

摘要翻译： 提供了在表面层具有有机感光层的电子照相感光体，其可以提高表面层的耐磨性，耐久性和操作稳定性，并且可以长时间形成没有损伤和密度不均匀的图像。 电子照相感光体包括导电基底，底涂层和具有电荷产生层和电荷输送层的感光层。 在感光体中，感光层的蠕变值CItau为2.70％以上，弹性率ηaHU为47％以上，在表面上在5mN的压痕最大载荷的情况下，在温度为 25℃，相对湿度为50％。

公开(公告)号：US07507509B2

公开(公告)日：2009-03-24

申请号：US11245135

申请日：2005-10-07

申请人： Kazukiyo Nagai ,  Tetsuro Suzuki ,  Hiroshi Tamura ,  Hongguo Li

发明人： Kazukiyo Nagai ,  Tetsuro Suzuki ,  Hiroshi Tamura ,  Hongguo Li

IPC分类号： G03G5/047

CPC分类号： G03G5/0668 ,  G03G5/0542 ,  G03G5/0546 ,  G03G5/0553 ,  G03G5/0592 ,  G03G5/0614 ,  G03G5/0672 ,  G03G5/071 ,  G03G5/14708 ,  G03G5/1473 ,  G03G5/14734 ,  G03G5/14791

摘要： An electrophotographic photoreceptor, including a crosslinked material including: units obtained from a radical polymerizing monomer A having three or more radical polymerizing groups; a compound B having the following formula (1): B1—Ar1—CH═CH—Ar2—B2   (1) wherein Ar1 represents a substituted or an unsubstituted monovalent group or bivalent group formed of an aromatic hydrocarbon skeleton; Ar2 represents a monovalent group or a bivalent group formed of an aromatic hydrocarbon skeleton or heterocyclic compound skeleton having one or more tertiaryamino group; and at least one of B1 and B2 is a hydrogen atom, and the other is an acryloyloxy group; a methacryloyloxy group; a vinyl group; an alkyl group having an acryloyloxy group, a methacryloyloxy group or a vinyl group; or an alkoxy group having an acryloyloxy group, a methacryloyloxy group or a vinyl group; and a photo polymerization initiator.

摘要翻译： 一种电子照相感光体，包括交联材料，包括：由具有三个或更多个自由基聚合基团的自由基聚合单体A获得的单元; 具有下式（1）的化合物B：<？in-line-formula description =“In-line formula”end =“lead”→> B1-Ar1-CH-CH-Ar2-B2（1） -line-formula description =“In-line Formulas”end =“tail”？>其中Ar1表示由芳烃骨架形成的取代或未取代的一价基团或二价基团; Ar2表示由具有一个或多个叔氨基的芳烃骨架或杂环化合物骨架形成的一价基团或二价基团; B1和B2中的至少一个是氢原子，另一个是丙烯酰氧基; 甲基丙烯酰氧基; 乙烯基; 具有丙烯酰氧基的烷基，甲基丙烯酰氧基或乙烯基; 或具有丙烯酰氧基的烷氧基，甲基丙烯酰氧基或乙烯基; 和光聚合引发剂。

公开(公告)号：US20080232850A1

公开(公告)日：2008-09-25

申请号：US12045876

申请日：2008-03-11

申请人： Makoto Shishido

发明人： Makoto Shishido

IPC分类号： G03G15/00

CPC分类号： G03G15/0216 ,  G03G5/04 ,  G03G5/0614 ,  G03G5/0668 ,  G03G5/0672 ,  G03G15/0266 ,  G03G15/0291

摘要： An image forming apparatus comprises charging means, etc. sequentially arranged around a periphery of an electrophotographic photoconductor, wherein, when a projection area of the charging means per time relative to the photosensitive layer surface of the electrophotographic photoconductor is set to be S (cm2) and a current value applied to the charging means is set to be ICC (μA), an inflow current value represented by ICC/S (μA/cm2) is set to a value within the range of from 5 to 25 μA/cm2, and the electrophotographic photoconductor is a monolayer type electrophotographic photoconductor and also a specific amine compound is contained.

摘要翻译： 图像形成装置包括依次布置在电子照相感光体的周围的充电装置等，其中当每个时间相对于电子照相感光体的感光层表面的充电装置的投影面积被设定为S（cm < SUP> 2 ），并且施加到充电装置的电流值被设置为I CC（muA），由I CC＆lt; S（muA / cm 2）设定为5至25μA/ cm 2的范围内的值，电子照相感光体是单层型电子照相感光体， 也含有特定的胺化合物。

公开(公告)号：US20080014519A1

公开(公告)日：2008-01-17

申请号：US11606226

申请日：2006-11-30

申请人： Ji-young Lee ,  Beom-jun Kim

发明人： Ji-young Lee ,  Beom-jun Kim

IPC分类号： G03G5/047 ,  G03G5/05

CPC分类号： G03G5/0553 ,  G03G5/0564 ,  G03G5/0605 ,  G03G5/0616 ,  G03G5/0668 ,  G03G5/071 ,  G03G5/075 ,  G03G5/076

摘要： An organic photoreceptor and an electrophotographic image forming apparatus including the organic photoreceptor are provided. The organic photoreceptor has the same advantage as a conventional laminated photoreceptor but improved electric properties such as higher photosensitivity and lower exposure potential.

摘要翻译： 提供了一种有机感光体和包括有机感光体的电子照相成像设备。 有机感光体具有与常规层压感光体相同的优点，但具有改善的电性能，例如较高的光敏性和较低的曝光电位。

公开(公告)号：US20070281229A1

公开(公告)日：2007-12-06

申请号：US11806571

申请日：2007-06-01

申请人： Takatsugu Obata ,  Akihiro Kondoh

发明人： Takatsugu Obata ,  Akihiro Kondoh

IPC分类号： G03G5/047

CPC分类号： G03G5/0614 ,  G03G5/047 ,  G03G5/0668 ,  G03G5/0672 ,  G03G5/0696

摘要： A charge transporting substance having three stilbene structures or butadiene structures in a molecule, represented by the following general formula is used as an organic photoconductive material. An electrophotographic photoconductor is prepared by causing a photosensitive layer which is disposed on a conductive support, to contain the organic photoconductive material in order to dispose the photoconductor to an image forming apparatus.

摘要翻译： 使用由以下通式表示的分子中具有三个芪结构或丁二烯结构的电荷输送物质作为有机光电导材料。 通过使布置在导电支撑体上的感光层含有有机光电导材料以将感光体设置在图像形成装置上来制备电子照相感光体。