公开(公告)号：US20110076603A1

公开(公告)日：2011-03-31

申请号：US12891502

申请日：2010-09-27

申请人： Toyoko SHIBATA ,  Tomoko SAKIMURA ,  Shinichi HAMAGUCHI ,  Masanori YUMITA

发明人： Toyoko SHIBATA ,  Tomoko SAKIMURA ,  Shinichi HAMAGUCHI ,  Masanori YUMITA

IPC分类号： G03G15/00 ,  G03G21/18

CPC分类号： G03G5/0614 ,  G03G5/071 ,  G03G5/14704 ,  G03G5/1473 ,  G03G5/14734 ,  G03G5/14769 ,  G03G5/14786 ,  G03G5/14791 ,  G03G5/14795

摘要： An object of the invention is to provide an image forming apparatus and process cartridge both employing the organic photoreceptor by improving an abrasion resistance of the organic photoreceptor up to the same level as an amorphous silicone photoreceptor, the image blur and image flow problem liable to generate in high temperature and high moisture condition, and to provide an organic photoreceptor capable of obtaining a precise and a high quality dot image by short wavelength laser exposure. Provided is an organic photoreceptor having a conductive substrate, provided thereon at least a photo receiving layer and a protective layer in this order, wherein the protective layer comprises at least a resin layer obtained by a reaction between a chain polymerizable compound having a charge transportable structure represented by Formula (1) and a chain polymerizable compound without having a charge transportable structure.

摘要翻译： 本发明的目的是提供一种图像形成装置和处理盒，其通过将有机感光体的耐磨性提高到与非晶硅聚合物感光体相同的水平来使用有机感光体，图像模糊和图像流动问题易于产生 在高温高湿条件下，提供能够通过短波长激光曝光获得精确和高质量的点图像的有机感光体。 本发明提供一种具有导电性基板的有机感光体，至少在其上设置有光接收层和保护层，其中，保护层至少包含通过具有电荷输送性结构的链式聚合性化合物 由式（1）表示的化合物和不具有电荷传输结构的链可聚合化合物。

公开(公告)号：US20090280419A1

公开(公告)日：2009-11-12

申请号：US12431490

申请日：2009-04-28

申请人： Tomoko SAKIMURA ,  Toyoko SHIBATA ,  Fumitaka MOCHIZUKI ,  Shinichi HAMAGUCHI ,  Masanori YUMITA

发明人： Tomoko SAKIMURA ,  Toyoko SHIBATA ,  Fumitaka MOCHIZUKI ,  Shinichi HAMAGUCHI ,  Masanori YUMITA

IPC分类号： G03G5/06 ,  G03G15/02

CPC分类号： G03G5/0614 ,  G03G5/0603 ,  G03G5/0605 ,  G03G5/0609

摘要： An electrophotographic photoreceptor is disclosed, comprising on or over an electrically conductive support a photosensitive layer containing a charge generation material and a charge transfer material, wherein the charge generation material is comprised of two or more compounds represented by the following formula wherein X and Y are each an alkyl group or a halogen atom, n is an integer of 1 to 6 and m is an integer of 0 to 6, and wherein the compounds differ in at least one of m and n of the formula.

摘要翻译： 公开了一种电子照相感光体，其在导电载体上或上方包含含有电荷产生材料和电荷转移材料的感光层，其中电荷产生材料由两种或更多种由下式表示的化合物组成：其中X和Y为 每个为烷基或卤素原子，n为1至6的整数，m为0至6的整数，并且其中化合物的m和n至少之一不同。

公开(公告)号：US20090148784A1

公开(公告)日：2009-06-11

申请号：US12328020

申请日：2008-12-04

申请人： Tomoko SAKIMURA ,  Toyoko SHIBATA ,  Shinichi HAMAGUCHI ,  Masanori YUMITA

发明人： Tomoko SAKIMURA ,  Toyoko SHIBATA ,  Shinichi HAMAGUCHI ,  Masanori YUMITA

IPC分类号： G03G5/06 ,  G03G15/04 ,  G03G15/02 ,  G03G13/00

CPC分类号： G03G5/0605 ,  G03G5/0603 ,  G03G5/0609 ,  G03G5/0614 ,  G03G2215/00957

摘要： Disclosed is an electrophotographic photoreceptor comprising on or over an electrically conductive support a photosensitive layer containing a pyranthrone compound represented by the following formula and the pyranthrone compound has a crystal structure exhibiting a CuKα X-ray diffraction spectrum having peaks at angles (2θ±0.2°) of 16.9°, 18.7° and 20.6°.

摘要翻译： 公开了一种电子照相感光体，其在导电性载体上含有含有下式所示的吡喃酮化合物的感光层，所述吡喃酮化合物具有呈现出角度（2θ±0.2°）的峰值的CuKαX射线衍射光谱的晶体结构 ）为16.9°，18.7°和20.6°。

公开(公告)号：US20110151364A1

公开(公告)日：2011-06-23

申请号：US12959964

申请日：2010-12-03

申请人： Masanori YUMITA ,  Toyoko SHIBATA ,  Shinichi HAMAGUCHI

发明人： Masanori YUMITA ,  Toyoko SHIBATA ,  Shinichi HAMAGUCHI

IPC分类号： G03G15/00

CPC分类号： G03G5/0614 ,  G03G5/0575 ,  G03G5/0603 ,  G03G5/0609 ,  G03G5/0631 ,  G03G5/0659

摘要： Provided is an electrophotographic photoreceptor exhibiting not only excellent durability together with high sensitivity but also excellent image reproduction, which is suitable for an image forming method by which imagewise exposure is performed employing a light source having an emission wavelength peak being in the range of 350-500 nm to form a high density electrostatic latent image on a photoreceptor, and also provided are an image forming method employing the electrophotographic photoreceptor, and an image forming apparatus thereof. Also disclosed is an electrophotographic photoreceptor possessing a conductive support and provided thereon, a charge generation layer and a charge transport layer, wherein the charge generation layer possesses a pyranthrone pigment, and the charge transport layer possesses at least one of compounds represented by Formula (1) or Formula (2) described below:

摘要翻译： 本发明提供一种电子照相感光体，其不仅具有优异的耐久性以及高灵敏度，而且还具有优异的图像再现性，其适用于使用发光波长峰值在350nm范围内的光源进行成像曝光的成像方法， 500nm以在感光体上形成高密度静电潜像，并且还提供了使用电子照相感光体的图像形成方法及其图像形成装置。 还公开了一种电子照相感光体，其上具有导电性支持体，其上设有电荷产生层和电荷输送层，其中电荷产生层具有吡喃酮颜料，电荷输送层具有至少一种式（1）表示的化合物 ）或式（2）：