公开(公告)号：US08679710B2

公开(公告)日：2014-03-25

申请号：US11317852

申请日：2005-12-22

申请人： Daisuke Kuboshima ,  Eiichi Miyamoto ,  Kazunari Hamasaki ,  Norio Nakai ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

发明人： Daisuke Kuboshima ,  Eiichi Miyamoto ,  Kazunari Hamasaki ,  Norio Nakai ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

IPC分类号： G03G5/047 ,  G03G5/06

CPC分类号： G03G5/0614 ,  G03G5/047 ,  G03G5/0564 ,  G03G5/0605 ,  G03G5/0616 ,  G03G5/0666 ,  G03G5/0668

摘要： The present invention provides an electrophotographic photoreceptor comprising a photosensitive layer that contains at least a charge generating agent, a hole transport agent and a prede mulas (A) and (B). The electrophotographic photoreceptor prevents image defect termined additive. The hole transport agent satisfies the following for from occurring and can meet the demand for higher speed image forming apparatuses, by reducing the adhesion of paper dust and preventing the occurrence of cracks. ⁢ μ M 5.0 × 10 - 6 ⁢ ⁢ μ ⁢ : ⁢ ⁢ Hole ⁢ ⁢ mobility ⁢ ⁢ ( cm 2 · V - 1 · second - 1 ) ⁢ ⁢ of ⁢ ⁢ hole ⁢ ⁢ transport ⁢ ⁢ agent ⁢ ⁢ in ⁢ ⁢ the ⁢ ⁢ electric ⁢ ⁢ field ⁢ ⁢ intensity ⁢ ⁢ of ⁢ ⁢ 3 × 10 5 ⁢ ( V / cm ) ⁢ ⁢ M ⁢ : ⁢ ⁢ Molecular ⁢ ⁢ weight ⁢ ⁢ of ⁢ ⁢ hole ⁢ ⁢ transport ⁢ ⁢ agent ( B )

摘要翻译： 本发明提供一种电子照相感光体，其包含至少含有电荷产生剂，空穴传输剂和前体（A）和（B）的光敏层。 电子照相感光体防止图像缺陷终止的添加剂。 空穴输送剂由于发生而满足以下要求，可以通过降低纸灰尘的粘附性和防止发生裂纹而满足对高速成像装置的需求。 μM <1.2×10 -8（A）μ> 5.0×10 -6表示ud孔：胡氏迁移率（cm 2·V -1·第二-1） 孔侯传输üüüéééééééééé⁢⁢⁢⁢⁢⁢⁢⁢⁢3×10 5（V / cm） （B）

公开(公告)号：US20060141377A1

公开(公告)日：2006-06-29

申请号：US11317852

申请日：2005-12-22

申请人： Daisuke Kuboshima ,  Eiichi Miyamoto ,  Kazunari Hamasaki ,  Norio Nakai ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

发明人： Daisuke Kuboshima ,  Eiichi Miyamoto ,  Kazunari Hamasaki ,  Norio Nakai ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

IPC分类号： G03G5/06

CPC分类号： G03G5/0614 ,  G03G5/047 ,  G03G5/0564 ,  G03G5/0605 ,  G03G5/0616 ,  G03G5/0666 ,  G03G5/0668

摘要： The present invention provides an electrophotographic photoreceptor comprising a photosensitive layer that contains at least a charge generating agent, a hole transport agent and a predetermined additive. The hole transport agent satisfies the following formulas (A) and (B). The electrophotographic photoreceptor prevents image defect from occurring and can meet the demand for higher speed image forming apparatuses, by reducing the adhesion of paper dust and preventing the occurrence of cracks.   ⁢ μ M 5.0 × 10 - 6 ⁢ ⁢ μ ⁢ : ⁢   ⁢ Hole ⁢   ⁢ mobility ⁢   ⁢ ( cm 2 · V - 1 · second - 1 ) ⁢   ⁢ of ⁢   ⁢ hole ⁢   ⁢ transport ⁢   ⁢ agent ⁢   ⁢ in ⁢   ⁢ the ⁢   ⁢ electric ⁢   ⁢ field ⁢   ⁢ intensity ⁢   ⁢ of ⁢   ⁢ 3 × 10 5 ⁢ ( V / cm ) ⁢ ⁢ M ⁢ : ⁢   ⁢ Molecular ⁢   ⁢ weight ⁢   ⁢ of ⁢   ⁢ hole ⁢   ⁢ transport ⁢   ⁢ agent ( B )

公开(公告)号：US07700251B2

公开(公告)日：2010-04-20

申请号：US11582588

申请日：2006-10-18

申请人： Norio Nakai ,  Kazunari Hamasaki ,  Daisuke Kuboshima ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

发明人： Norio Nakai ,  Kazunari Hamasaki ,  Daisuke Kuboshima ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

IPC分类号： G03G5/06

CPC分类号： G03G5/047 ,  G03G5/0517 ,  G03G5/0605 ,  G03G5/0609 ,  G03G5/0612 ,  G03G5/0618 ,  G03G5/062

摘要： An electrophotographic photoconductor having an excellent crack resistance and wear resistance as well as excellent sensitivity characteristics, while keeping good image characteristics of the photoconductor is provided. In addition, an image-forming apparatus equipped with such an electrophotographic photoconductor is also provided. The electrophotographic photoconductor includes a photosensitive layer containing at least a charge-generating agent, a hole-transfer agent, and a binder resin on a conductive substrate. The hole-transfer agent has a solubility of 5 to 35% by weight with respect to triglyceride oleate and the photosensitive layer contains a compound represented by the following general formula (1) as an additive:

摘要翻译： 提供具有优异的耐龟裂性和耐磨性以及优异的灵敏度特性的电子照相感光体，同时保持感光体的良好图像特性。 此外，还提供了配备有这种电子照相感光体的图像形成装置。 电子照相感光体包括在导电性基材上至少含有电荷发生剂，空穴转移剂和粘合剂树脂的感光层。 空穴转移剂相对于甘油三酯油酸盐的溶解度为5〜35重量％，感光层含有下述通式（1）表示的化合物作为添加剂：

公开(公告)号：US20070111118A1

公开(公告)日：2007-05-17

申请号：US11582588

申请日：2006-10-18

申请人： Norio Nakai ,  Kazunari Hamasaki ,  Daisuke Kuboshima ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

发明人： Norio Nakai ,  Kazunari Hamasaki ,  Daisuke Kuboshima ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

IPC分类号： G03G5/06

CPC分类号： G03G5/047 ,  G03G5/0517 ,  G03G5/0605 ,  G03G5/0609 ,  G03G5/0612 ,  G03G5/0618 ,  G03G5/062

摘要： An electrophotographic photoconductor having an excellent crack resistance and wear resistance as well as excellent sensitivity characteristics, while keeping good image characteristics of the photoconductor is provided. In addition, an image-forming apparatus equipped with such an electrophotographic photoconductor is also provided. The electrophotographic photoconductor includes a photosensitive layer containing at least a charge-generating agent, a hole-transfer agent, and a binder resin on a conductive substrate. The hole-transfer agent has a solubility of 5 to 35% by weight with respect to triglyceride oleate and the photosensitive layer contains a compound represented by the following general formula (1) as an additive:

摘要翻译： 提供具有优异的耐龟裂性和耐磨性以及优异的灵敏度特性的电子照相感光体，同时保持感光体的良好图像特性。 此外，还提供了配备有这种电子照相感光体的图像形成装置。 电子照相感光体包括在导电性基材上至少含有电荷发生剂，空穴转移剂和粘合剂树脂的感光层。 空穴转移剂相对于甘油三酯油酸盐的溶解度为5〜35重量％，感光层含有下述通式（1）表示的化合物作为添加剂：

公开(公告)号：US20070077507A1

公开(公告)日：2007-04-05

申请号：US11523370

申请日：2006-09-19

申请人： Junichiro Otsubo ,  Jun Azuma ,  Keiji Maruo ,  Yoshio Inagaki ,  Norio Nakai ,  Kazunari Hamasaki ,  Shiho Okawa

发明人： Junichiro Otsubo ,  Jun Azuma ,  Keiji Maruo ,  Yoshio Inagaki ,  Norio Nakai ,  Kazunari Hamasaki ,  Shiho Okawa

IPC分类号： G03G5/14

CPC分类号： G03G5/047 ,  G03G5/142 ,  G03G5/144

摘要： The present invention provides an electrophotographic photoconductor which can reduce the generation of fogging under a high-temperature and high-moisture condition and can be easily manufactured, and a method of manufacturing such an electrophotographic photoconductor. In an electrophotographic photoconductor which includes a support base body, an intermediate layer and a photoconductor layer and a manufacturing method of such an electrophotographic photoconductor, the intermediate layer contains titanium oxide and a binding resin and a ΔL value of the intermediate layer satisfies a following relationship formula (1) or a ΔA value of the intermediate layer satisfies a following relationship formula (2), that is, −5.0≦ΔL≦0 (1) and ΔA≦0.055 (2), wherein the ΔL value is a value which is obtained by subtracting an L value (a parameter value which is measured by a color-difference meter in accordance with JIS Z 8722) which is measured with respect to a single support base body from the L value which is measured in a state that the intermediate layer is formed on the support base body, and the ΔA value is a value which is obtained by subtracting reflection absorbance (a parameter value which is measured by a color-difference meter) which is measured with respect to a single support base body from the reflection absorbance which is measured in a state that the intermediate layer is formed on the support base body.

摘要翻译： 本发明提供一种电子照相感光体，其可以在高温高湿条件下降低发烟，并且可以容易地制造，以及制造这种电照相感光体的方法。 在包括支撑基体，中间层和感光体层的电子照相感光体中，以及这种电子照相感光体的制造方法，中间层含有氧化钛和粘合树脂，中间层的ΔL值满足以下关系 式（1）或中间层的ΔA值满足关系式（2），即-5.0 <=ΔL<= 0（1）和ΔA<= 0.055（2），其中ΔL值为 通过从在一个状态下测量的L值中减去相对于单个支撑基体测量的L值（由根据JIS Z 8722测量的色差计的参数值）获得的值 中间层形成在支撑基体上，DeltaA值是通过减去反射吸光度（通过色差计测量的参数值）而获得的值 r），其从在支撑基体上形成中间层的状态下测量的反射吸光度相对于单个支撑体基体测量。

公开(公告)号：US20080026310A1

公开(公告)日：2008-01-31

申请号：US11827115

申请日：2007-07-10

申请人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

发明人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

IPC分类号： G03G15/04 ,  C07D207/50 ,  C30B7/06

CPC分类号： C09B67/0026 ,  C09B67/0016 ,  G03G5/0696

摘要： The invention provides an oxo-titanylphthalocyanine crystal which is stable, is superior in dispersibility in a photoreceptive layer and efficiently contributes to improvements in sensitivity and charge retention rate of an electrophotographic photoreceptor when it is used as a charge generating agent, a method for producing the oxo-titanylphthalocyanine crystal, and an electrophotographic photoreceptor. The oxo-titanylphthalocyanine crystal has predetermined optical characteristics and thermal properties and is produced by a production method including the following steps (a) to (d): (a) a step of dissolving a crude oxo-titanylphthalocyanine crystal in an acid to obtain an oxo-titanylphthalocyanine solution; (b) a step of adding the oxo-titanylphthalocyanine solution dropwise in a poor solvent to obtain a wet cake; (c) a step of washing the wet cake with an alcohol having 1 to 4 carbon atoms; and (d) a step of stirring the washed wet cake under heating in a nonaqueous solvent to obtain an oxo-titanylphthalocyanine crystal.

摘要翻译： 本发明提供了一种稳定的氧代 - 钛氧基酞菁晶体，其在感光层中的分散性优异，并且有效地提高了当用作电荷产生剂时电子照相感光体的灵敏度和电荷保持率的提高， 氧代 - 钛氧基酞菁晶体和电子照相感光体。 氧代 - 钛氧基酞菁晶体具有预定的光学特性和热性质，并且通过包括以下步骤（a）至（d）的制备方法制备：（a）将粗的氧代 - 氧代 - 酞菁结晶溶解在酸中以获得 氧代 - 钛氧基酞菁溶液; （b）将氧代 - 钛氧基酞菁溶液滴加到不良溶剂中以获得湿滤饼的步骤; （c）用具有1至4个碳原子的醇洗涤湿滤饼的步骤; 和（d）在非水溶剂中加热下搅拌洗涤的湿滤饼以获得氧代 - 氧化钛酞菁晶体的步骤。

公开(公告)号：US20110046392A1

公开(公告)日：2011-02-24

申请号：US12924710

申请日：2010-10-01

申请人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

发明人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

IPC分类号： C07F7/28

CPC分类号： C09B67/0026 ,  C09B67/0016 ,  G03G5/0696

摘要： The invention provides an oxo-titanylphthalocyanine crystal which is stable, is superior in dispersibility in a photoreceptive layer and efficiently contributes to improvements in sensitivity and charge retention rate of an electrophotographic photoreceptor when it is used as a charge generating agent, a method for producing the oxo-titanylphthalocyanine crystal, and an electrophotographic photoreceptor. The oxo-titanylphthalocyanine crystal has predetermined optical characteristics and thermal properties and is produced by a production method including the following steps (a) to (d): (a) a step of dissolving a crude oxo-titanylphthalocyanine crystal in an acid to obtain an oxo-titanylphthalocyanine solution; (b) a step of adding the oxo-titanylphthalocyanine solution dropwise in a poor solvent to obtain a wet cake; (c) a step of washing the wet cake with an alcohol having 1 to 4 carbon atoms; and (d) a step of stirring the washed wet cake under heating in a nonaqueous solvent to obtain an oxo-titanylphthalocyanine crystal.

摘要翻译： 本发明提供了一种稳定的氧代 - 钛氧基酞菁晶体，其在感光层中的分散性优异，并且有效地提高了当用作电荷产生剂时电子照相感光体的灵敏度和电荷保持率的提高， 氧代 - 钛氧基酞菁晶体和电子照相感光体。 氧代 - 钛氧基酞菁晶体具有预定的光学特性和热性质，并且通过包括以下步骤（a）至（d）的制备方法制备：（a）将粗的氧代 - 氧代 - 酞菁结晶溶解在酸中以获得 氧代 - 钛氧基酞菁溶液; （b）将氧代 - 钛氧基酞菁溶液滴加到不良溶剂中以获得湿滤饼的步骤; （c）用具有1至4个碳原子的醇洗涤湿滤饼的步骤; 和（d）在非水溶剂中加热下搅拌洗涤的湿滤饼以获得氧代 - 氧化钛酞菁晶体的步骤。

公开(公告)号：US08686133B2

公开(公告)日：2014-04-01

申请号：US13546077

申请日：2012-07-11

申请人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

发明人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

IPC分类号： C09B47/067

CPC分类号： C09B67/0026 ,  C09B67/0016 ,  G03G5/0696

摘要： The invention provides an oxo-titanylphthalocyanine crystal which is stable, is superior in dispersibility in a photoreceptive layer and efficiently contributes to improvements in sensitivity and charge retention rate of an electrophotographic photoreceptor when it is used as a charge generating agent, a method for producing the oxo-titanylphthalocyanine crystal, and an electrophotographic photoreceptor. The oxo-titanylphthalocyanine crystal has predetermined optical characteristics and thermal properties and is produced by a production method including the following steps (a) to (d): (a) a step of dissolving a crude oxo-titanylphthalocyanine crystal in an acid to obtain an oxo-titanylphthalocyanine solution; (b) a step of adding the oxo-titanylphthalocyanine solution dropwise in a poor solvent to obtain a wet cake; (c) a step of washing the wet cake with an alcohol having 1 to 4 carbon atoms; and (d) a step of stirring the washed wet cake under heating in a nonaqueous solvent to obtain an oxo-titanylphthalocyanine crystal.

摘要翻译： 本发明提供了一种稳定的氧代 - 钛氧基酞菁晶体，其在感光层中的分散性优异，并且有效地提高了当用作电荷产生剂时电子照相感光体的灵敏度和电荷保持率的提高， 氧代 - 钛氧基酞菁晶体和电子照相感光体。 氧代 - 钛氧基酞菁晶体具有预定的光学特性和热性质，并且通过包括以下步骤（a）至（d）的制备方法制备：（a）将粗的氧代 - 氧代 - 酞菁结晶溶解在酸中以获得 氧代 - 钛氧基酞菁溶液; （b）将氧代 - 钛氧基酞菁溶液滴加到不良溶剂中以获得湿滤饼的步骤; （c）用具有1至4个碳原子的醇洗涤湿滤饼的步骤; 和（d）在非水溶剂中加热下搅拌洗涤的湿滤饼以获得氧代 - 氧化钛酞菁晶体的步骤。

公开(公告)号：US08242261B2

公开(公告)日：2012-08-14

申请号：US12924710

申请日：2010-10-01

申请人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

发明人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

IPC分类号： C09B67/04

CPC分类号： C09B67/0026 ,  C09B67/0016 ,  G03G5/0696

摘要： The invention provides an oxo-titanylphthalocyanine crystal which is stable, is superior in dispersibility in a photoreceptive layer and efficiently contributes to improvements in sensitivity and charge retention rate of an electrophotographic photoreceptor when it is used as a charge generating agent, a method for producing the oxo-titanylphthalocyanine crystal, and an electrophotographic photoreceptor. The oxo-titanylphthalocyanine crystal has predetermined optical characteristics and thermal properties and is produced by a production method including the following steps (a) to (d): (a) a step of dissolving a crude oxo-titanylphthalocyanine crystal in an acid to obtain an oxo-titanylphthalocyanine solution; (b) a step of adding the oxo-titanylphthalocyanine solution dropwise in a poor solvent to obtain a wet cake; (c) a step of washing the wet cake with an alcohol having 1 to 4 carbon atoms; and (d) a step of stirring the washed wet cake under heating in a nonaqueous solvent to obtain an oxo-titanylphthalocyanine crystal.

摘要翻译： 本发明提供了一种稳定的氧代 - 钛氧基酞菁晶体，其在感光层中的分散性优异，并且有效地提高了当用作电荷产生剂时电子照相感光体的灵敏度和电荷保持率的提高， 氧代 - 钛氧基酞菁晶体和电子照相感光体。 氧代 - 钛氧基酞菁晶体具有预定的光学特性和热性质，并且通过包括以下步骤（a）至（d）的制备方法制备：（a）将粗的氧代 - 氧化钛酞菁结晶溶解在酸中以获得 氧代 - 钛氧基酞菁溶液; （b）将氧代 - 钛氧基酞菁溶液滴加到不良溶剂中以获得湿滤饼的步骤; （c）用具有1至4个碳原子的醇洗涤湿滤饼的步骤; 和（d）在非水溶剂中加热下搅拌洗涤的湿滤饼以获得氧代 - 氧化钛酞菁晶体的步骤。

公开(公告)号：US07449602B2

公开(公告)日：2008-11-11

申请号：US10943719

申请日：2004-09-17

申请人： Tetsuya Ichiguchi ,  Yoshio Inagaki

发明人： Tetsuya Ichiguchi ,  Yoshio Inagaki

IPC分类号： C07C211/55

CPC分类号： C07C211/54 ,  G03G5/0601 ,  G03G5/0668 ,  G03G5/0672

摘要： A stilbene derivative compound having a specific substituent at the specific position thereof to exert good compatibility with a binder resin and to tend to be uniformly dispersed in a photoconductive layer so as to allow prolonged specified sensitive property, a process for the production thereof, and an electrophotographic photoconductor containing the stilbene derivative compound are provided.For preparing a stilbene derivative compound represented by the general formula (1), a specified formylated triphenylamine derivative compound and a specified diphosphate ester derivative compound are allowed to be reacted with each other in the presence of a catalyst. (wherein “A” is a divalent organic group having aromatic hydrocarbon as a basic skeleton, each of the plural R1 to R7 is a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or the like, each of the plural Ar1 and Ar2 is a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, each of repeating numbers a and b is an integer of 0 to 4, and c is an integer of 1 to 3.)

摘要翻译： 一种在其特定位置具有特定取代基的1,2-二苯乙烯衍生物化合物，以与粘合剂树脂具有良好的相容性，并趋于均匀分散在光电导层中，以便延长特定的敏感性，其制备方法和 提供了含有二苯乙烯衍生物化合物的电子照相感光体。 为了制备由通式（1）表示的二苯乙烯衍生物化合物，使特定的甲酰化三苯胺衍生物化合物和特定的二磷酸酯衍生物化合物在催化剂存在下彼此反应。 （其中“A”是具有芳香烃作为基本骨架的二价有机基团，多个R 1至R 7中的每一个为氢原子，取代或未取代的 具有1至20个碳原子的烷基，取代或未取代的具有6至30个碳原子的芳基等，多个Ar 1和Ar 2 2中的每一个是 取代或未取代的碳原子数6〜30的芳基，重复数a和b各自为0〜4的整数，c为1〜3的整数。）