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1. 发明授权

US06451493B1 Electrophotographic photoconductor 有权
标题翻译：电子照相感光体
公开(公告)号：US06451493B1
公开(公告)日：2002-09-17
申请号：US09714822
申请日：2000-11-17
申请人： Shinichi Omokawa , Masaru Takeuchi , Seizo Kitagawa
发明人： Shinichi Omokawa , Masaru Takeuchi , Seizo Kitagawa
IPC分类号： G03G505
CPC分类号： G03G5/0564 , G03G5/0578
摘要： An electrophotographic photoconductor which is a positive charging, single layer type organic photoconductor including a conductive substrate; and a photosensitive layer which is provided on the conductive substrate, which is a positive charging, single layer type organic photoconductor, and which is composed of at least one charge generation substance that contains a phthalocyanine pigment; a positive hole transport substance; an electron transport substance; and a binder that contains a polycarbonate resin with a polydialkylsilozane constructed of a repeated unit represented by formula (1). Toner consumption during repeated electrophotographic use is reduced and print defects including dirty background suppressed.
摘要翻译：一种电子照相感光体，其为包含导电性基材的正带电单层型有机感光体; 以及感光层，其设置在作为正电荷单层型有机感光体的导电性基板上，并且由至少一种含有酞菁颜料的电荷产生物质构成; 空穴输送物质; 电子传输物质; 和含有由式（1）表示的重复单元构成的聚二烷基硅烷的聚碳酸酯树脂的粘合剂。反复电子照相使用时的调色剂消耗减少，包括脏背景的印刷缺陷受到抑制。

2. 发明授权

US08735031B2 Electrophotographic photoreceptor, process for producing the electrophotographic photoreceptor, and electrophotographic device 有权
标题翻译：电子照相感光体，电子照相感光体的制造方法和电子照相装置
公开(公告)号：US08735031B2
公开(公告)日：2014-05-27
申请号：US13132031
申请日：2009-11-27
申请人： Kazuki Nebashi , Yoichi Nakamura , Ikuo Takaki , Seizo Kitagawa , Shinjiro Suzuki
发明人： Kazuki Nebashi , Yoichi Nakamura , Ikuo Takaki , Seizo Kitagawa , Shinjiro Suzuki
IPC分类号： G03G5/14
CPC分类号： G03G5/142 , G03G5/144
摘要： An electrophotographic photoreceptor includes an electroconductive substrate; an undercoat layer provided on the electroconductive substrate and composed of: metal oxide fine particles including particles of at least one metal oxide and at least one organic compound provided on the particles of the at least one metal oxide as a surface treatment; and a copolymer resin synthesized by copolymerization of essential constituent monomers composed of a dicarboxylic acid, a diol, a triol and a diamine; and a photosensitive layer laminated on the undercoat layer. The undercoat layer permits (a) attaining stable electric potential characteristics in all environments ranging from low temperature and low humidity environments to high temperature and high humidity environments, (b) suppressing the occurrence of printing defects and density differences, and (c) simultaneously attaining transfer restorability and restorability from intense light-induced fatigue even in a wide variety of usages and operation environments.
摘要翻译：电子照相感光体包括导电基片; 设置在导电性基体上的由下述构成的底涂层构成：包含至少一种金属氧化物的颗粒的金属氧化物微粒和至少一种金属氧化物颗粒上提供的至少一种有机化合物作为表面处理; 以及由二羧酸，二醇，三醇和二胺组成的必需构成单体共聚而合成的共聚物树脂; 和层压在底涂层上的感光层。底涂层允许（a）在从低温和低湿环境到高温和高湿度环境的所有环境中获得稳定的电势特性，（b）抑制印刷缺陷和密度差异的发生，和（c）同时获得即使在各种各样的使用和操作环境中，也可以将恢复性和恢复性从强烈的光诱导疲劳中转移出来。

3. 发明授权

US09904186B2 Electrophotographic photoreceptor, method for manufacturing same, and electrophotographic apparatus using same 有权
公开(公告)号：US09904186B2
公开(公告)日：2018-02-27
申请号：US14232900
申请日：2011-08-05
申请人： Seizo Kitagawa , Yasushi Tanaka , Shinjiro Suzuki , Hiroshi Emori , Kazuki Nebashi
发明人： Seizo Kitagawa , Yasushi Tanaka , Shinjiro Suzuki , Hiroshi Emori , Kazuki Nebashi
IPC分类号： G03G5/047 , G03G5/05 , G03G5/06 , B05D1/18 , G03G5/04
CPC分类号： G03G5/047 , B05D1/18 , G03G5/04 , G03G5/0503 , G03G5/0525 , G03G5/0564 , G03G5/0696
摘要： A layered, positively-charged electrophotographic photoreceptor, a method for manufacturing the photoreceptor and an electrophotographic apparatus using the photoreceptor are disclosed. The layered, positively-charged electrophotographic photoreceptor includes a conductive support on which is provided a sequential stack composed of a charge transport layer containing at least a first hole transport material and a first binder resin; and a charge generation layer containing at least a charge generation material, a second hole transport material, an electron transport material, and a second binder resin, wherein the charge generation layer and the charge transport layer have a total amount of residual solvents that is 50 μg/cm2 or less. The photoreceptor is highly sensitive, highly durable, and has excellent image qualities including low image defects from cracks generated due to image memory or contact contamination. The photoreceptor is applicable to a high-resolution and high-speed positively-charged electrophotographic apparatuses and provides excellent operational stability.

4. 发明申请

US20130316276A1 ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PRODUCTION METHOD THEREOF, AND ELECTROPHOTOGRAPHIC DEVICE 有权
标题翻译：电子照相光电子器件及其制造方法及电子照相器件
公开(公告)号：US20130316276A1
公开(公告)日：2013-11-28
申请号：US13985037
申请日：2012-02-14
申请人： Kazuki Nebashi , Shinjiro Suzuki , Seizo Kitagawa
发明人： Kazuki Nebashi , Shinjiro Suzuki , Seizo Kitagawa
IPC分类号： G03G15/00
CPC分类号： G03G5/071 , G03G5/0542 , G03G5/0589 , G03G5/0696
摘要： An electrophotographic photoconductor including, in the order recited: a conductive substrate; an undercoat layer provided on the conductive substrate; and a photoconductive layer provided on the undercoat layer and containing at least a phthalocyanine compound as a charge generation material and, as a resin binder, a polyvinyl acetal resin composed of a repeating unit represented by formula (1): where, in formula (1), R is a hydrogen atom, a methyl group, an ethyl group or a propyl group; x, y and z represent mol % of the respective structural units, where x+y+z=100; n is an integer from 1 to 5; a degree of acetalization (x+z) is 86 to 99 mol %; and a molar ratio (x:z) of the structural units is 95:5 to 50:50.
摘要翻译：一种电摄影光电导体，包括：导电基片; 设置在导电性基板上的底涂层; 和设置在底涂层上并且至少含有酞菁化合物作为电荷产生材料的光电导层，作为树脂粘合剂，由式（1）表示的重复单元构成的聚乙烯醇缩醛树脂：其中，在式（1）中，），R为氢原子，甲基，乙基或丙基; x，y和z表示各结构单元的摩尔％，其中x + y + z = 100; n为1〜5的整数; 缩醛化度（x + z）为86〜99摩尔％。结构单元的摩尔比（x：z）为95:5〜50:50。

5. 发明授权

US4880717A Photosensitive body for electrophotography with protective and intermediate layers 失效
标题翻译：具有保护层和中间层的电子照相用感光体
公开(公告)号：US4880717A
公开(公告)日：1989-11-14
申请号：US271004
申请日：1988-11-14
申请人： Seizo Kitagawa , Mitsuru Narita
发明人： Seizo Kitagawa , Mitsuru Narita
IPC分类号： G03G5/043 , G03G5/082
CPC分类号： G03G5/0433 , G03G5/08207
摘要： The present invention provides a photosensitive body of Se-based function separation type to be used in electrophotographic equipment which employs long wavelength light for writing. Such a body exhibits outstanding abrasion resistance and heat resistance without sacrificing good electrical properties. This is accomplished by interposing an intermediate layer of As-Se alloy between the surface protective layer and the chargeable layer. The intermediate layer contains As in an increasing concentration gradient across the section of the layer from the chargeable layer to the surface protective layer. This graded As concentration causes the coefficient of thermal expansion to gradually decrease across the intermediate layer section in the direction from the chargeable layer to the surface protective layer. Thus the intermediate layer prevents the surface protective layer from thermal stress and cracking by acting as a transition buffer between the differing properties of the protective layer and chargeable layer.
摘要翻译：本发明提供一种使用长波长光进行书写的电子照相设备中的基于Se的功能分离型感光体。这种物体表现出优异的耐磨性和耐热性，而不牺牲良好的电性能。这是通过在表面保护层和可充电层之间插入As-Se合金中间层来实现的。中间层在从可充电层到表面保护层的层的跨越部分的增加的浓度梯度中包含As。该As浓度使得在从可充电层到表面保护层的方向上，中间层部分的热膨胀系数逐渐降低。因此，中间层通过在保护层和可充电层的不同性质之间充当过渡缓冲液来防止表面保护层发生热应力和开裂。

6. 发明授权

US08372567B2 Electrophotographic photoreceptor and manufacturing method therefor 有权
标题翻译：电子照相感光体及其制造方法
公开(公告)号：US08372567B2
公开(公告)日：2013-02-12
申请号：US12735704
申请日：2009-05-28
申请人： Yoichi Nakamura , Seizo Kitagawa , Hiroshi Emori , Yasushi Tanaka , Hiroyuki Ichiyanagi
发明人： Yoichi Nakamura , Seizo Kitagawa , Hiroshi Emori , Yasushi Tanaka , Hiroyuki Ichiyanagi
IPC分类号： G03G5/00
CPC分类号： G03G5/051 , G03G5/047 , G03G5/0517 , G03G5/0535 , G03G5/0605 , G03G5/0609 , G03G5/0614 , G03G5/0616 , G03G5/0618 , G03G5/0696
摘要： In an electrophotographic photoreceptor having a photosensitive layer on an electroconductive substrate, the photosensitive layer is a positive-charging laminate comprising at least a charge transport layer and a charge generating layer laminated in that order, with the charge generating layer containing at least a resin binder, a charge generating agent, a space filler and an electron transport agent, while the charge transport layer contains at least, as a resin binder, polystyrene and a hole transport agent, and mineral oil of the charge transport layer is in an amount of 1% by mass or less of an amount of polystyrene. Thus, a highly durable and economic positive-charging multilayer electrophotographic photoreceptor and a manufacturing method therefor may be achieved.
摘要翻译：在导电性基体上具有感光层的电子照相感光体中，感光层是至少包含电荷输送层和电荷产生层的充电层叠体，其中电荷产生层至少含有树脂粘合剂，电荷产生剂，空隙填充剂和电子传输剂，而电荷输送层至少含有作为树脂粘合剂的聚苯乙烯和空穴传输剂，电荷输送层的矿物油的量为1 质量％以下的聚苯乙烯。因此，可以实现高度耐用和经济的带正电荷的多层电子照相感光体及其制造方法。

7. 发明申请

US20110183246A1 NOVEL ETHYLENE COMPOUND, CHARGE TRANSPORT MATERIAL CONTAINING ETHYLENE COMPOUND, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CONTAINING ETHYLENE COMPOUND, AND PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTORECEPTOR 有权
标题翻译：含有乙烯化合物的新型乙烯化合物，电荷输送材料，含有乙烯化合物的电子照相光电子体以及用于生产电子照相光刻胶的方法
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。

8. 发明申请

US20110091799A1 ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND MANUFACTURING METHOD THEREFOR 有权
标题翻译：电子照相机及其制造方法
公开(公告)号：US20110091799A1
公开(公告)日：2011-04-21
申请号：US12735704
申请日：2009-05-28
申请人： Yoichi Nakamura , Seizo Kitagawa , Hiroshi Emori , Yasushi Tanaka , Hiroyuki Ichiyanagi
发明人： Yoichi Nakamura , Seizo Kitagawa , Hiroshi Emori , Yasushi Tanaka , Hiroyuki Ichiyanagi
IPC分类号： G03G5/047 , G03G5/00
CPC分类号： G03G5/051 , G03G5/047 , G03G5/0517 , G03G5/0535 , G03G5/0605 , G03G5/0609 , G03G5/0614 , G03G5/0616 , G03G5/0618 , G03G5/0696
摘要： In an electrophotographic photoreceptor having a photosensitive layer on an electroconductive substrate, the photosensitive layer is a positive-charging laminate comprising at least a charge transport layer and a charge generating layer laminated in that order, with the charge generating layer containing at least a resin binder, a charge generating agent, a space filler and an electron transport agent, while the charge transport layer contains at least, as a resin binder, polystyrene and a hole transport agent, and mineral oil of the charge transport layer is in an amount of 1% by mass or less of an amount of polystyrene. Thus, a highly durable and economic positive-charging multilayer electrophotographic photoreceptor and a manufacturing method therefor may be achieved.
摘要翻译：在导电性基体上具有感光层的电子照相感光体中，感光层是至少包含电荷输送层和电荷产生层的充电层叠体，其中电荷产生层至少含有树脂粘合剂，电荷产生剂，空隙填充剂和电子传输剂，而电荷输送层至少含有作为树脂粘合剂的聚苯乙烯和空穴传输剂，电荷输送层的矿物油的量为1 质量％以下的聚苯乙烯。因此，可以实现高度耐用和经济的带正电荷的多层电子照相感光体及其制造方法。

9. 发明授权

US5945243A Photoconductor for electrophotography and method of manufacturing the same 失效
标题翻译：用于电子照相的感光体及其制造方法
公开(公告)号：US5945243A
公开(公告)日：1999-08-31
申请号：US99987
申请日：1998-06-19
申请人： Yoichi Nakamura , Kazumi Egota , Seizo Kitagawa , Naoki Itoh
发明人： Yoichi Nakamura , Kazumi Egota , Seizo Kitagawa , Naoki Itoh
IPC分类号： G03G5/047 , G03G5/05 , G03G5/06 , G03G5/04 , G03G15/00
CPC分类号： G03G5/051 , G03G5/047 , G03G5/0514 , G03G5/062 , Y10S430/103
摘要： An electrophotographic photoconductor includes a conductive substrate having a photoconductive film thereon. The photoconductive film includes a layer containing a charge transport agent and a phosphonite compound, which acts as an antioxidant. Preferably, the phosphonite compound is diarylarylphosphonite. The layer that contains the charge transport preferably contains from 0.005 to 10 weight % of diarylarylphosphonite. The diarylarylphosphonite is preferably a compound selected from the group consisting of bis(2,4-di-tert-butylphenyl)phenylphosphonite, bis(2,6-di-tert-butylphenyl)phenylphosphonite and bis(2,6-di-tert-butyl-4-methylphenyl)phenylphosphonite.
摘要翻译：电子照相感光体包括其上具有光电导膜的导电基底。光电导膜包括含有电荷传输剂和作为抗氧化剂的亚膦酸酯化合物的层。优选地，亚膦酸酯化合物是二芳基芳基亚膦酸盐。含有电荷输送的层优选含有0.005〜10重量％的二芳基芳基亚膦酸盐。二芳基芳基亚膦酸酯优选为选自双（2,4-二叔丁基苯基）苯基亚膦酸酯，双（2,6-二叔丁基苯基）苯基亚膦酸酯和双（2,6-二叔丁基苯基）丁基-4-甲基苯基）苯基亚膦酸酯。

10. 发明授权

US08951702B2 Charge transport material that is an ethylene compound, electrophotographic photoreceptor containing the charge transport material, and process for producing the electrophotographic photoreceptor 有权
标题翻译：作为乙烯化合物的电荷输送材料，含有电荷输送材料的电子照相感光体，以及电子照相感光体的制造方法
公开(公告)号：US08951702B2
公开(公告)日：2015-02-10
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 , C07C211/54 , G03G5/06
CPC分类号： C07C211/54 , G03G5/0614 , G03G5/0668 , G03G5/0696
摘要： A charge transport material having reduced photodeterioration is disclosed to be an ethylene compound having an ethylene double bond site, having a structure in which four different substituents are substituted at the ethylene double bond site, and having general formula (I) below where 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 phenyl or tolyl; and Ar is one group selected from the group consisting of naphthyl, biphenyl, anthryl, xylyl, and phenanthryl. An electrophotographic photoreceptor and process for producing the electrophotographic photoreceptor also are disclosed. The electrophotographic photoreceptor includes a conductive substrate; and a photosensitive layer provided on the conductive substrate that includes the charge transport material.
摘要翻译：公开了具有降低的光致变化的电荷传输材料，其是具有乙烯双键位点的乙烯化合物，其具有在乙烯双键位置上被四个不同取代基取代的结构，并且具有以下通式（I），其中R1，R2 R 3各自独立地为氢原子，卤素原子，碳原子数为1〜6的烷基或碳原子数为1〜6的烷氧基。 R4是苯基或甲苯基; Ar是选自萘基，联苯基，蒽基，二甲苯基和菲基的一个基团。还公开了一种电子照相感光体和用于制造电子照相感光体的方法。电子照相感光体包括导电性基板; 以及设置在包括电荷输送材料的导电性基板上的感光层。

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