公开(公告)号：US07115346B2

公开(公告)日：2006-10-03

申请号：US10674786

申请日：2003-10-01

申请人： Saburo Yokota ,  Kyung-yol Yon ,  Hwan-koo Lee ,  Hae-ree Joo ,  Boem-jun Kim ,  Nam-jeong Lee

发明人： Saburo Yokota ,  Kyung-yol Yon ,  Hwan-koo Lee ,  Hae-ree Joo ,  Boem-jun Kim ,  Nam-jeong Lee

IPC分类号： G03G15/02

CPC分类号： G03G5/0616 ,  G03G5/047 ,  G03G5/0629 ,  G03G5/0672

摘要： A multi-layered electrophotographic positively charged organic photoconductor includes a conductive substrate, a charge transport layer formed on the conductive substrate, and a charge generating layer formed on the charge transport layer. A composition to form the charge transport layer includes at least one hole transport material, a binder resin and an organic solvent, and a composition to form the charge generating layer includes a charge generating material, a binder resin, an organic solvent and a hole transport material. An organic photoconductor has improved static electrical properties by controlling interfacial conditions of the charge transport layer and the charge generating layer. The charge generating layer may be readily coated on the charge transport layer. In addition, the organic photoconductor has excellent electric properties such as an improved sensitivity and a low discharge voltage.

摘要翻译： 多层电子照相正电有机感光体包括导电性基板，形成在导电性基板上的电荷输送层，以及形成在电荷输送层上的电荷产生层。 形成电荷输送层的组合物包括至少一种空穴传输材料，粘合剂树脂和有机溶剂，以及形成电荷产生层的组合物包括电荷产生材料，粘合剂树脂，有机溶剂和空穴传输 材料。 通过控制电荷传输层和电荷产生层的界面条件，有机光电导体具有改善的静电特性。 电荷产生层可以容易地涂覆在电荷传输层上。 此外，有机光电导体具有优异的电特性，例如灵敏度提高和放电电压低。

公开(公告)号：US07083886B2

公开(公告)日：2006-08-01

申请号：US10684556

申请日：2003-10-15

申请人： Saburo Yokota ,  Hwan-Koo Lee ,  Beam-Jun Kim ,  Kyung-yol Yon

发明人： Saburo Yokota ,  Hwan-Koo Lee ,  Beam-Jun Kim ,  Kyung-yol Yon

IPC分类号： G03G5/06

CPC分类号： G03G5/0521 ,  G03G5/0517 ,  G03G5/064

摘要： A single layered electrophotographic photoreceptor includes a photosensitive layer having having at least a charge generating material, a charge transport material and a binder on a conductive support, wherein the charge generating material is amorphous titanylphthalocyanine, and the photosensitive layer is a hindered phenol compound and/or hindered amine compound.

摘要翻译： 单层电子照相感光体包括在导电性载体上具有至少电荷产生材料，电荷传输材料和粘合剂的感光层，其中电荷产生材料是无定形氧钛酞菁，感光层是受阻酚化合物和/ 或受阻胺化合物。

公开(公告)号：US20060003243A1

公开(公告)日：2006-01-05

申请号：US11220569

申请日：2005-09-08

申请人： Nam-jeong Lee ,  Hwan-koo Lee ,  Saburo Yokota ,  Kyung-yol Yon ,  Hae-ree Joo

发明人： Nam-jeong Lee ,  Hwan-koo Lee ,  Saburo Yokota ,  Kyung-yol Yon ,  Hae-ree Joo

IPC分类号： G03G5/05

CPC分类号： G03G5/0542 ,  G03G5/043 ,  G03G5/047 ,  G03G5/05 ,  G03G5/0503 ,  G03G5/0525 ,  G03G5/0696

摘要： A composition for a charge generating layer of a positively-charged electrophotographic organophotoreceptor and a method of manufacturing same. The charge generating layer composition for the positively-charged electrophotographic organophotoreceptor, which has a charge transport layer and a charge generating layer sequentially coated on a conductive support, includes a charge generating material, a binder, and an organic solvent containing an alcoholic solvent and an acetate solvent in a ratio from 1:9 to 5:5 by weight.

摘要翻译： 带正电荷的电子照相有机体感光体的电荷产生层的组合物及其制造方法。 具有电荷传输层和依次涂覆在导电性载体上的电荷产生层的带正电荷的电子照相有机光感受器的电荷产生层组合物包括电荷产生材料，粘合剂和含有醇溶剂和 乙酸酯溶剂的重量比为1:9至5:5。

公开(公告)号：US20070026327A1

公开(公告)日：2007-02-01

申请号：US11494509

申请日：2006-07-28

申请人： An-kee Lim ,  Saburo Yokota ,  Kyung-yol Yon ,  Moto Makino ,  Sung-ho Kang ,  Seung-ju Kim

发明人： An-kee Lim ,  Saburo Yokota ,  Kyung-yol Yon ,  Moto Makino ,  Sung-ho Kang ,  Seung-ju Kim

IPC分类号： G03G5/047

CPC分类号： G03G5/142 ,  G03G5/0542 ,  G03G5/0564 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0696 ,  G03G5/144

摘要： An electrophotographic photoreceptor is provided that includes an underlayer, a charge generating layer, and a charge transporting layer that are sequentially formed on an electrically conductive substrate. The underlayer includes a metal oxide, a binder resin, and a heat stabilizer; the charge generating layer includes a binder resin and a phthalocyanine-based charge generating material; and the charge transporting layer includes a charge transporting material, a binder resin, and a heat stabilizer. Also provided is an electrophotographic image forming apparatus including the photoelectrographic photoreceptor. The laminated type electrophotographic photoreceptor includes a predetermined combination of heat stabilizers in the underlayer and the charge transporting layer, and the charge transporting material is a combination of butadiene-based amine compound and hydrazone-based compound, or a benzidine-based compound. Thus, the electrophotographic image forming apparatus including the electrophotographic photoreceptor can stably provide high quality image after repeated use.

摘要翻译： 提供电子照相感光体，其包括依次形成在导电基板上的底层，电荷产生层和电荷输送层。 底层包括金属氧化物，粘合剂树脂和热稳定剂; 电荷产生层包括粘合剂树脂和基于酞菁的电荷产生材料; 并且电荷输送层包括电荷输送材料，粘合剂树脂和热稳定剂。 还提供了包括光电感光体的电子照相图像形成装置。 层叠型电子照相感光体包括底层中的热稳定剂和电荷输送层的预定组合，电荷输送材料是丁二烯类胺化合物和腙系化合物或联苯胺类化合物的组合。 因此，包括电子照相感光体的电子照相成像设备可以在重复使用之后稳定地提供高质量的图像。

公开(公告)号：US20110183243A1

公开(公告)日：2011-07-28

申请号：US12913291

申请日：2010-10-27

申请人： Yong-jin AHN ,  Saburo Yokota ,  Zbig Tokarski ,  Hwan-koo Lee ,  Ji-uk Kim

发明人： Yong-jin AHN ,  Saburo Yokota ,  Zbig Tokarski ,  Hwan-koo Lee ,  Ji-uk Kim

IPC分类号： G03G15/00

CPC分类号： G03G5/14708 ,  G03G5/144 ,  G03G5/147 ,  G03G5/14704 ,  G03G5/14713 ,  G03G5/1473 ,  G03G5/14791 ,  G03G15/75

摘要： The disclosure provides an electrophotographic photoreceptor and an electrophotographic imaging apparatus including the photoreceptor, wherein the electrophotographic photoreceptor comprises: a conductive substrate; a charge generating layer formed on the conductive substrate; a charge transport layer formed on the charge generating layer; and an overcoat layer formed on the charge transport layer, wherein the ratio (R2/R1) of the surface resistance value (R2) of the overcoat layer to the surface resistance value (R1) of the charge transport layer is from about 0.01 to about 1.5.

摘要翻译： 本公开提供了一种电子照相感光体和包括感光体的电子摄影成像设备，其中电子照相感光体包括：导电基底; 形成在所述导电基板上的电荷产生层; 形成在电荷产生层上的电荷传输层; 以及形成在电荷输送层上的外涂层，其中外涂层的表面电阻值（R2）与电荷输送层的表面电阻值（R1）的比（R2 / R1）为约0.01〜约 1.5。

公开(公告)号：US07078139B2

公开(公告)日：2006-07-18

申请号：US10680421

申请日：2003-10-08

申请人： Saburo Yokota ,  Hwan-koo Lee ,  Kyung-yoi Yon

发明人： Saburo Yokota ,  Hwan-koo Lee ,  Kyung-yoi Yon

IPC分类号： G03G5/047

CPC分类号： G03G5/076 ,  G03G5/047 ,  G03G5/051 ,  G03G5/056 ,  G03G5/0564 ,  G03G5/06 ,  G03G5/0605 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0672 ,  G03G5/073 ,  G03G5/14795

摘要： An electrophotographic photoreceptor for wet development including an electrically conductive substrate, and an organic photosensitive layer formed on the electrically conductive substrate, wherein a surface layer of the organic photosensitive layer includes at least a binder resin comprising a polymer compound and a charge transport material comprising a low molecule compound, the surface layer having an oxygen gas permeation coefficient of 5×10−13 cm3 (STP)*cm/s*cm2*cmHg or less. The electrophotographic photoreceptor has high durability for liquid developer used in a wet development technique and can produce good image characteristics.

摘要翻译： 一种用于湿显影的电子照相感光体，包括导电基底和形成在导电基底上的有机感光层，其中有机感光层的表面层至少包括含有高分子化合物的粘合剂树脂和包含 低分子化合物，表面层的氧气透过系数为5×10 -3 cm 3（STP）* cm / s * cm 2 / * cmHg以下。 电子照相感光体对于湿式显影技术中使用的液体显影剂具有高耐久性，并且可以产生良好的图像特性。

公开(公告)号：US20080014520A1

公开(公告)日：2008-01-17

申请号：US11606270

申请日：2006-11-30

申请人： Beom-jun Kim ,  Ji-young Lee ,  Saburo Yokota ,  Moto Makino

发明人： Beom-jun Kim ,  Ji-young Lee ,  Saburo Yokota ,  Moto Makino

IPC分类号： G03G5/06

CPC分类号： G03G5/0651

摘要： An organic photoreceptor and an electrophotographic image forming apparatus employing the organic photoreceptor are provided, where the organic photoreceptor has high photosensitivity with respect to light radiation at short wavelengths and low exposure potential. Specifically, an organic photoreceptor for short wavelengths having a photosensitive layer including a naphthalene tetracarboxylic acid diimide derivative is formed on an electrically conductive substrate.

摘要翻译： 提供一种使用有机感光体的有机感光体和电子照相图像形成装置，其中有机感光体相对于短波长的光辐射和低曝光电位具有高的光敏性。 具体而言，在导电性基板上形成具有含有萘四羧酸二酰亚胺衍生物的感光层的短波长有机感光体。

公开(公告)号：US07622232B2

公开(公告)日：2009-11-24

申请号：US11638456

申请日：2006-12-14

申请人： Saburo Yokota ,  Seung-ju Kim

发明人： Saburo Yokota ,  Seung-ju Kim

IPC分类号： G03G15/02

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

摘要： An electrophotographic photoreceptor including a photosensitive layer which includes a titanyl phthalocyanine crystal having a major absorption peak at a wavelength of 780 nm±10 nm and a minor absorption peak having an intensity of ¾ or less of the major absorption peak at 690 nm±10 nm in the visible-infrared absorption spectrum and a distyryl compound having a predetermined structure. An electrophotographic image forming apparatus employing the electrophotographic photoreceptor is also provided. The electrophotographic photoreceptor and the electrophotographic image forming apparatus have good photosensitivity and charging properties and good stability over repeated charging obtained by using an optimum combination of a new crystal type of a highly photosensitive titanyl phthalocyanine and a distyryl compound which is a charge transporting material that is compatible with the titanyl phthalocyanine.

摘要翻译： 包括感光层的电子照相感光层，其包含在780nm±10nm的波长处具有主要吸收峰的氧钛酞菁晶体和在690nm±10nm处具有主吸收峰的强度为¾以下的次要吸收峰 在可见红外吸收光谱中和具有预定结构的二苯乙烯基化合物。 还提供了使用电子照相感光体的电子照相成像设备。 电子照相感光体和电子照相图像形成装置具有良好的光敏性和带电性，并且通过使用新型晶体型高感光性氧钛酞菁和作为电荷输送材料的二苯乙烯基化合物的最佳组合而获得的重复充电具有良好的稳定性 与钛酞菁相容。

公开(公告)号：US20080080895A1

公开(公告)日：2008-04-03

申请号：US11684260

申请日：2007-03-09

申请人： Beom-jun KIM ,  Ji-young Lee ,  Saburo Yokota

发明人： Beom-jun KIM ,  Ji-young Lee ,  Saburo Yokota

IPC分类号： G03G17/04

CPC分类号： G03G5/0651 ,  G03G5/0614 ,  G03G5/0696

摘要： A photoconductor which can be effectively used in an electrophotographic image forming apparatus using a light source emitting short-wavelength light, and an electrophotographic image forming apparatus using the photoconductor. The photoconductor of the electrophotographic image forming apparatus using a short-wavelength light source includes a supporter and a photoconductive layer, which is formed on the supporter, wherein the photoconductive layer may include a naphthalenetetracarboxylic acid diimide derivative represented by the following Formula (I), in which, R1, R2, and R3 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C6 to C30 aryl group, and a substituted or unsubstituted C7 to C30 aralkyl group.

摘要翻译： 可以有效地用于使用发射短波长光的光源的电子照相成像设备的光电导体和使用该光电导体的电子照相成像设备。 使用短波长光源的电子照相图像形成装置的感光体包括形成在支撑体上的支撑体和光电导层，其中光电导层可以包括由下式（I）表示的萘四甲酸二酰亚胺衍生物， 其中R 1，R 2，R 3和R 3各自独立地选自氢原子，卤素原子， 取代或未取代的C 1至C 20烷基，取代或未取代的C 1至C 20烷氧基 基团，取代或未取代的C 6〜C 30芳基，以及取代或未取代的C 7〜C 30芳基， 芳烷基。

公开(公告)号：US20070190439A1

公开(公告)日：2007-08-16

申请号：US11638456

申请日：2006-12-14

申请人： Saburo Yokota ,  Seung-ju Kim

发明人： Saburo Yokota ,  Seung-ju Kim

IPC分类号： G03G5/047

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

摘要： An electrophotographic photoreceptor including a photosensitive layer which includes a titanyl phthalocyanine crystal having a major absorption peak at a wavelength of 780 nm±10 nm and a minor absorption peak having an intensity of ¾ or less of the major absorption peak at 690 nm±10 nm in the visible-infrared absorption spectrum and a distyryl compound having a predetermined structure. An electrophotographic image forming apparatus employing the electrophotographic photoreceptor is also provided. The electrophotographic photoreceptor and the electrophotographic image forming apparatus have good photosensitivity and charging properties and good stability over repeated charging obtained by using an optimum combination of a new crystal type of a highly photosensitive titanyl phthalocyanine and a distyryl compound which is a charge transporting material that is compatible with the titanyl phthalocyanine.

摘要翻译： 包括感光层的电子照相感光层，其包含在780nm±10nm的波长处具有主要吸收峰的氧钛酞菁晶体和在690nm±10nm处具有主吸收峰的强度为¾以下的次要吸收峰 在可见红外吸收光谱中和具有预定结构的二苯乙烯基化合物。 还提供了使用电子照相感光体的电子照相成像设备。 电子照相感光体和电子照相图像形成装置具有良好的光敏性和带电性，并且通过使用新型晶体型高感光性氧钛酞菁和作为电荷输送材料的二苯乙烯基化合物的最佳组合而获得的重复充电具有良好的稳定性 与钛酞菁相容。