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1. 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.

2. 发明申请

US20140199619A1 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR MANUFACTURING SAME, AND ELECTROPHOTOGRAPHIC APPARATUS USING SAME 有权
标题翻译：电子照相机，其制造方法和使用相同的电子照相设备
公开(公告)号：US20140199619A1
公开(公告)日：2014-07-17
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： G03G15/00 , B05D5/12
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.
摘要翻译：公开了层状的带正电荷的电子照相感光体，感光体的制造方法和使用感光体的电子照相设备。层状的带正电荷的电子照相感光体包括导电支撑体，其上设置有由至少含有第一空穴传输材料和第一粘合剂树脂的电荷输送层构成的顺序叠层; 以及至少包含电荷产生材料，第二空穴传输材料，电子传输材料和第二粘合剂树脂的电荷产生层，其中电荷产生层和电荷输送层具有总量为50的残留溶剂 μg/ cm2以下。感光体高度敏感，高度耐用，并且具有优异的图像质量，包括由于图像记忆或接触污染而产生的裂纹的低图像缺陷。感光体适用于高分辨率和高速正电照相设备，并提供优异的操作稳定性。

3. 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。

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

US08597864B2 Photoreceptor for electrophotography, process for producing the same, and electrophotographic apparatus 有权
标题翻译：电子摄影用感光体，其制造方法以及电子照相设备
公开(公告)号：US08597864B2
公开(公告)日：2013-12-03
申请号：US13148438
申请日：2009-02-16
申请人： Shinjiro Suzuki , Yoichi Nakamura , Seizo Kitagawa , Fengqiang Zhu , Kazuki Nebashi
发明人： Shinjiro Suzuki , Yoichi Nakamura , Seizo Kitagawa , Fengqiang Zhu , Kazuki Nebashi
IPC分类号： G03G5/00
CPC分类号： G03G5/056 , G03G5/0564 , G03G5/0578 , G03G5/0589 , G03G5/0592
摘要： Provided is a photoreceptor for electrophotography, a process for producing the photoreceptor, and an electrophotographic apparatus that includes the photoreceptor. The photoreceptor has a photosensitive layer which contains a resin binder that is a copolymerized polyallylate resin. An electrophotographic apparatus having a photoreceptor drum that includes this photoreceptor has a reduced surface frictional resistance throughout the printing period from the beginning to after printing, thus reducing the amount of surface wear while producing satisfactory images.
摘要翻译：本发明提供电子照相用感光体，感光体的制造方法以及包含感光体的电子照相设备。感光体具有包含作为共聚聚烯丙基酯树脂的树脂粘合剂的感光层。具有包括该感光体的感光鼓的电子照相设备在从开始到打印之后的整个打印期间具有降低的表面摩擦阻力，因此在产生令人满意的图像的同时减少了表面磨损量。

6. 发明授权

US09081313B2 Electrophotographic photoconductor, production method thereof, and electrophotographic device 有权
标题翻译：电子照相感光体，其制备方法和电子照相装置
公开(公告)号：US09081313B2
公开(公告)日：2015-07-14
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： G03G15/02 , G03G15/04 , G03G5/07 , G03G5/05 , G03G5/06
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表示相应结构单元的摩尔％，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。

7. 发明申请

US20120058422A1 PHOTORECEPTOR FOR ELECTROPHOTOGRAPHY, PROCESS FOR PRODUCING THE SAME, AND ELECTROPHOTOGRAPHIC APPARATUS 有权
标题翻译：电子照相用电极，其制造方法和电子照相装置
公开(公告)号：US20120058422A1
公开(公告)日：2012-03-08
申请号：US13148438
申请日：2009-02-16
申请人： Shinjiro Suzuki , Yoichi Nakamura , Seizo Kitagawa , Fengqiang Zhu , Kazuki Nebashi
发明人： Shinjiro Suzuki , Yoichi Nakamura , Seizo Kitagawa , Fengqiang Zhu , Kazuki Nebashi
IPC分类号： G03G15/00 , G03G5/047 , G03G5/043 , G03G5/07
CPC分类号： G03G5/056 , G03G5/0564 , G03G5/0578 , G03G5/0589 , G03G5/0592
摘要： Provided is a photoreceptor for electrophotography, a process for producing the photoreceptor, and an electrophotographic apparatus that includes the photoreceptor. The photoreceptor has a photosensitive layer which contains a resin binder that is a copolymerized polyallylate resin. An electrophotographic apparatus having a photoreceptor drum that includes this photoreceptor has a reduced surface frictional resistance throughout the printing period from the beginning to after printing, thus reducing the amount of surface wear while producing satisfactory images.
摘要翻译：本发明提供电子照相用感光体，感光体的制造方法以及包含感光体的电子照相设备。感光体具有包含作为共聚聚烯丙基酯树脂的树脂粘合剂的感光层。具有包括该感光体的感光鼓的电子照相设备在从开始到打印之后的整个打印期间具有降低的表面摩擦阻力，因此在产生令人满意的图像的同时减少了表面磨损量。

8. 发明申请

US20120034556A1 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS FOR PRODUCING THE ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND ELECTROPHOTOGRAPHIC DEVICE 有权
标题翻译：电子照相光电子产品，电摄影光刻胶的制造方法以及电子照相装置
公开(公告)号：US20120034556A1
公开(公告)日：2012-02-09
申请号：US13132031
申请日：2009-11-27
申请人： Kazuki Nebashi , Yoichi Nakamura , Seizo Kitagawa , Ikuo Takaki , Shinjiro Suzuki
发明人： Kazuki Nebashi , Yoichi Nakamura , Seizo Kitagawa , Ikuo Takaki , Shinjiro Suzuki
IPC分类号： G03G5/04
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。

9. 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。

10. 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。

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