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公开(公告)号：JP2017083842A
公开(公告)日：2017-05-18
申请号：JP2016211018
申请日：2016-10-27
发明人： TOGUCHI KANAME , HINATA SHOMA , SAKUMA KAZUKO , NISHIDA TAKESHI , KUNO JUNPEI , KUMOI HIROFUMI , TANAKA MASATO , KAWAHARA MASATAKA , ITO YUTO , KAWADA ISAO
IPC分类号： G03G5/06
CPC分类号： G03G5/0696 , C09B47/04 , C09B47/045 , C09B47/067 , C09B67/0023 , C09B67/0026
摘要： 【課題】電子写真感光体として求められる帯電性を維持しながら、高いレベルのゴースト現象の抑制効果を達成可能な電子写真感光体を提供する。【解決手段】支持体と、フタロシアニン顔料を含有する感光層を有する電子写真感光体であって、前記フタロシアニン顔料の、結晶相関長をrとし、結晶粒子のサイズをRとしたときに、Rが400nm以下であり、かつ、k=r/Rが0.17以上0.42以下であることを特徴とする電子写真感光体。【選択図】図1
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公开(公告)号：JP2014232307A
公开(公告)日：2014-12-11
申请号：JP2014050808
申请日：2014-03-13
CPC分类号： G03G5/0696 , G03G5/0542 , G03G5/0603 , G03G5/0607 , G03G5/0609 , G03G5/0612
摘要： 【課題】ポジゴースト画像及び黒ポチ画像が低減された良好な出力画像を作成可能な電子写真感光体を提供する。【解決手段】電子写真感光体の電荷発生層が、マトリックス−ドメイン構造を有する層であり、ドメインが電荷発生物質を有し、マトリックスが結着樹脂およびフルオランテン化合物を有する。【選択図】図1
摘要翻译： 要解决的问题：提供能够产生良好的输出图像的电子照相感光体，其中正重影图像和黑斑图像被减少。解决方案：电子照相感光体的电荷产生层是具有矩阵结构的层， 结构域包括电荷产生物质，并且基质包含粘合剂树脂和荧蒽化合物。
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3.发明专利
公开(公告)号：JP2014123104A
公开(公告)日：2014-07-03
申请号：JP2013221107
申请日：2013-10-24
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which reduces ghosting even in a low temperature and low humidity environment, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photoreceptor.SOLUTION: The electrophotographic photoreceptor includes a support, an undercoat layer formed on the support, and a photosensitive layer including a charge generating substance and a hole transporting substance formed on the undercoat layer. The undercoat layer contains a specific amine compound, titanium oxide crystal particles having an average primary particle diameter of 3 nm or more and 15 nm or less, and an organic resin.
摘要翻译： 要解决的问题：提供即使在低温和低湿度环境下减少重影的电子照相感光体，以及各自具有电子照相感光体的处理盒和电子照相设备。解决方案：电子照相感光体包括支撑体，形成的底涂层 和在底涂层上形成的包含电荷产生物质和空穴传输物质的感光层。 底涂层含有特定的胺化合物，平均一次粒径为3nm以上且15nm以下的氧化钛晶体粒子和有机树脂。
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4.发明专利
公开(公告)号：JP2013137523A
公开(公告)日：2013-07-11
申请号：JP2012251040
申请日：2012-11-15
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that suppresses ghost even in a low-temperature and low-humidity environment, and a process cartridge and an electrophotographic device which include the electrophotographic photoreceptor.SOLUTION: An electrophotographic photoreceptor includes a support, an undercoat layer formed on the support, and a photosensitive layer formed on the undercoat layer and containing a charge generating material and a hole transport material. The undercoat layer contains a specific amine compound.
摘要翻译： 要解决的问题：提供即使在低温和低湿度环境下抑制鬼影的电子照相感光体，以及包括电子照相感光体的处理盒和电子照相装置。解决方案：电子照相感光体包括支撑体，底涂层 形成在支撑体上的层，以及形成在底涂层上并含有电荷产生材料和空穴传输材料的感光层。 底涂层含有特定的胺化合物。
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5.发明专利Method for manufacturing electrophotographic photoreceptor, electrophotographic photoreceptor, process cartridge and electrophotographic device 有权制造电子照相光电子产物的方法，电子照相光电子器件，工艺盒和电子照相器件
公开(公告)号：JP2009014915A
公开(公告)日：2009-01-22
申请号：JP2007175173
申请日：2007-07-03
发明人： NOGUCHI KAZUNORI , OGAKI HARUNOBU , KOSAKA NOBUO , UEMATSU HIRONORI , OCHI ATSUSHI , KAWAHARA MASATAKA
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrophotographic photoreceptor in which each independent concave portion is formed on the surface of an electrophotographic photoreceptor, so as to allow a releasing material to be present on the surface at high concentration and to keep the releasing effect, and to provide an electrophotographic photoreceptor obtained by the method, and a process cartridge and an electrophotographic device equipped with the photoreceptor. SOLUTION: The method for manufacturing an electrophotographic photoreceptor having a surface layer containing a releasing material in concave portions on a support includes steps of: (1) forming concave portions with a depth of 0.1 μm to 10 μm each independent from one another on the surface of the surface layer; and (2) incorporating the releasing material into the concave portions. The present invention also discloses an electrophotographic photoreceptor manufactured by the method for manufacturing an electrophotographic photoreceptor, and a process cartridge and an electrophotographic device equipped with the electrophotographic photoreceptor. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译： 要解决的问题：提供一种电子照相感光体的制造方法，其中在电子照相感光体的表面上形成各自独立的凹部，以使得释放材料以高浓度存在于表面上， 以保持释放效果，并提供通过该方法获得的电子照相感光体，以及配备有感光体的处理盒和电子照相装置。 解决方案：用于制造具有在支撑体上的凹部中含有释放材料的表面层的电子照相感光体的方法包括以下步骤：（1）形成彼此独立的深度为0.1μm至10μm的凹部 在表层的表面上; 和（2）将释放材料结合到凹部中。 本发明还公开了一种通过电子照相感光体的制造方法制造的电子照相感光体，以及配有电子照相感光体的处理盒和电照相装置。 版权所有（C）2009，JPO＆INPIT
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6.发明专利
公开(公告)号：JP2007233359A
公开(公告)日：2007-09-13
申请号：JP2007016221
申请日：2007-01-26
发明人： ANEZAKI TAKASHI , OGAKI HARUNOBU , UEMATSU HIRONORI , KAWAHARA MASATAKA , OCHI ATSUSHI , TERAMOTO KYOICHI , SHIMADA AKIRA , MARUYAMA AKIO , KIKUCHI NORIHIRO , KOGANEI AKIO , TSUNODA TAKAYUKI , UESUGI HIROTOSHI
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor for forming a good image for an extended time by preventing scratches on the photoreceptor surface that may cause a defective image without depending on a method of increasing mechanical strength, and to provide a process cartridge and an electrophotographic apparatus each having the photoreceptor. SOLUTION: The electrophotographic photoreceptor having a support and a photosensitive layer is characterized in that: a plurality of independent recessed portions are present on the photoreceptor surface, the recessed portions having major axis diameters of 0.1 μm to 10 μm, minor axis diameters of 0.1 μm to 10 μm, and distances between the deepest portions and the opening planes of 0.1 μm to 10 μm; when square areas B each having one side parallel to the rotation direction of the photoreceptor and in a length of 50 μm are provided in each of 100 areas A obtained by equally dividing the surface by four in the rotation direction of the photoreceptor and by equally dividing by 25 in a direction perpendicular to the rotation direction of the photoreceptor, and further, when each area B is equally divided by 500 with straight lines parallel to the rotation direction of the photoreceptor, 400 through 499 lines out of the above lines pass the recessed portions in each area B. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译： 要解决的问题：提供一种电子照相感光体，用于通过防止感光体表面上的划痕而形成良好图像，从而可能导致缺陷图像，而不依赖于增加机械强度的方法，并且提供一种方法 盒和电子照相设备，每个具有感光体。 解决方案：具有支持体和感光层的电子照相感光体的特征在于，在感光体表面上存在多个独立的凹部，凹部的长轴直径为0.1μm〜10μm，短轴直径 为0.1μm〜10μm，最深部和开口面之间的距离为0.1μm〜10μm; 当通过在感光体的旋转方向上将表面等分成四个并通过等分地获得的100个区域A中设置每个具有与感光体的旋转方向平行的长度为50μm的正方形区域B 在与感光体的旋转方向垂直的方向上为25°，此外，当每个区域B以与感光体的旋转方向平行的直线平均分割500°时，上述线中的400至499行通过凹陷 各地区的部分B.版权所有（C）2007，JPO＆INPIT
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7.发明专利
公开(公告)号：JP2007233355A
公开(公告)日：2007-09-13
申请号：JP2007016217
申请日：2007-01-26
发明人： UEMATSU HIRONORI , OGAKI HARUNOBU , KAWAHARA MASATAKA , OCHI ATSUSHI , SHIMADA AKIRA , MARUYAMA AKIO , TERAMOTO KYOICHI , KIKUCHI NORIHIRO , KOGANEI AKIO , TSUNODA TAKAYUKI
IPC分类号： G03G5/04
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that even in various environments, excels in cleaning performance, achieving enhancing of durability performance and suppressing of image defects, and to provide a process cartridge and an electrophotographic apparatus having the electrophotographic photoreceptor. SOLUTION: The electrophotographic photoreceptor comprises a support and, superimposed thereon, a photosensitive layer, wherein on the surface of the electrophotographic photoreceptor there are provided 76-1,000 independent depressed portions per 100 μm square, and wherein the average major axis diameter of openings of the depressed portions is confined to 3.0-14.0 μm. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译： 要解决的问题：为了提供即使在各种环境下，清洁性能优异，实现耐久性能的提高和图像缺陷的抑制的电子照相感光体，并且提供具有电子照相感光体的处理盒和电子照相设备。 解决方案：电子照相感光体包括载体并且叠加在其上的感光层，其中在电子照相感光体的表面上，每100平方米提供76-1,000个独立的凹陷部分，其中平均长轴直径 凹陷部的开口被限制在3.0〜14.0μm。 版权所有（C）2007，JPO＆INPIT
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8.发明专利Polyvinyl acetal resin, electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus 有权聚乙烯乙烯树脂，电子摄影摄影会员，工艺盒和电子照相设备
公开(公告)号：JP2007182556A
公开(公告)日：2007-07-19
申请号：JP2006323634
申请日：2006-11-30
发明人： TANAKA MASATO , FUJII JUNJI , ISHIZUKA YUKA , KAWAHARA MASATAKA , NONAKA MASAKI
摘要： PROBLEM TO BE SOLVED: To provide a resin making a charge generating material fulfill its full property, and being excellent in coatability and dispersibility of the charge generating material, though the latter two properties are considered to be incompatible with the former; and to provide an electrophotographic photosensitive member using the resin, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member.
SOLUTION: The polyvinyl acetal resin having a specific repeating structural unit, the electrophotographic photosensitive member using the polyvinyl acetal resin, and the process cartridge and the electrophotographic apparatus each having the electrophotographic photosensitive member are provided.
COPYRIGHT: (C)2007,JPO&INPIT摘要翻译： 要解决的问题：提供使电荷产生材料具有充分性能的树脂，并且电荷产生材料的涂布性和分散性优异，尽管后两种性质被认为与前者不相容; 并提供使用该树脂的电子照相感光构件，以及各自具有电子照相感光构件的处理盒和电子照相设备。 解决方案：提供具有特定重复结构单元的聚乙烯醇缩醛树脂，使用聚乙烯醇缩醛树脂的电子照相感光构件，以及各自具有电子照相感光构件的处理盒和电子照相设备。 版权所有（C）2007，JPO＆INPIT
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9.发明专利
公开(公告)号：JP2006313332A
公开(公告)日：2006-11-16
申请号：JP2006104094
申请日：2006-04-05
发明人： KAWAHARA MASATAKA , TANAKA MASATO , FUJII JUNJI , ISHIZUKA YUKA , NONAKA MASAKI
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic device, wherein light having a short wavelength (380-500 nm) is used as image exposure light and a photoreceptor having proper photoelectric conversion efficiency for the wavelength as a whole is used. SOLUTION: In the electrophotographic device, the electrophotographic photoreceptor comprising a support body and a reflecting layer, a charge generating layer and a charge transport layer formed on the support body is used. With respect to image exposure light of 380-500 nm, the absorbance of the charge generating layer is ≤1.0, and the total reflectance and regular reflectance of the reflecting layer are ≥30% (to the standard white board) and COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译： 要解决的问题：为了提供一种电子照相装置，其中使用具有短波长（380-500nm）的光作为图像曝光光，并且使用对于波长作为整体的具有适当的光电转换效率的感光体。 解决方案：在电子照相装置中，使用包括支撑体和反射层的电子照相感光体，电荷产生层和形成在支撑体上的电荷输送层。 对于380-500nm的图像曝光光，电荷产生层的吸光度为≤1.0，反射层的总反射率和常规反射率为标准白板的≥30％，标准白板的反射率为<15％ 分别。 版权所有（C）2007，JPO＆INPIT
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10.发明专利Method for manufacturing electrophotographic photoreceptor, electrophotographic photoreceptor, process cartridge, and electrophotographic apparatus 有权制造电子照相光电子产物的方法，电子照相光电子器件，工艺盒和电子照相设备
公开(公告)号：JP2006106677A
公开(公告)日：2006-04-20
申请号：JP2005152490
申请日：2005-05-25
发明人： ISHIZUKA YUKA , TANAKA MASATO , NONAKA MASAKI , FUJII JUNJI , KAWAHARA MASATAKA
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrophotographic photoreceptor with which even when the surface layer of an electrophotographic photoreceptor is heated particularly at ≥80°C after the surface layer is formed by electron beam curing, the surface of the electrophotographic photoreceptor is hardly roughened.
SOLUTION: The melting point Tm [°C] of a charge transport material having the lowest melting point among charge transport materials contained in a layer 105 containing one or more binder resins and one or more charge transport materials, a temperature Th [°C] (Th≥80) at which the surface layer of the electrophotographic photoreceptor is heated, and a ratio (Md/Mb) between total mass (Md) of the charge transport materials and total mass (Mb) of the binder resins contained in the layer 105 containing one or more binder resins and one or more charge transport materials satisfy a relationship represented by the expression (1): Tm≥Th+(Md/Mb)×20.
COPYRIGHT: (C)2006,JPO&NCIPI摘要翻译： 要解决的问题：提供一种电子照相感光体的制造方法，即使在通过电子束固化形成表面层之后，甚至当电子照相感光体的表面层特别加热至≥80℃时，其表面 电子照相感光体难以粗糙化。 解决方案：包含在含有一种或多种粘合剂树脂和一种或多种电荷输送材料的层105中的电荷输送材料中具有最低熔点的电荷输送材料的熔点Tm [℃]，温度Th [ 加热电子照相感光体的表面层的电流转印材料的总质量（Md）与所含的粘合剂树脂的总质量（Mb）之比（Md / Mb）（℃〜 在含有一种或多种粘合剂树脂和一种或多种电荷输送材料的层105中满足由式（1）表示的关系：Tm≥Th+（Md / Mb）×20。 版权所有（C）2006，JPO＆NCIPI
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