公开(公告)号：US20100081073A1

公开(公告)日：2010-04-01

申请号：US12589874

申请日：2009-10-29

申请人： Junichiro Otsubo ,  Jun Azuma

发明人： Junichiro Otsubo ,  Jun Azuma

IPC分类号： G03G5/04 ,  C09B67/50

CPC分类号： C09B67/0019 ,  C09B67/0016 ,  C09B67/0026 ,  G03G5/0603 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0675 ,  G03G5/0677 ,  G03G5/0696

摘要： According to the present invention, a titanyl phthalocyanin crystal excellent in storage stability in organic solvents, a method for preparing the same and an electrophotographic photoconductor using the same are provided. In the titanyl phthalocyanin crystal, the method for preparing such a titanyl phthalocyanin crystal and the electrophotographic photoconductor using the same, the titanyl phthalocyanin crystal is characterized by having the maximum peak at a Bragg angle 2 θ±0.2°=27.2° in a CuKα characteristic X-ray diffraction spectrum and one peak within the range of 270 to 400° C. other than a peak accompanied by the vaporization of adsorbed water in a differential scanning calorimetric analysis.

摘要翻译： 根据本发明，提供了在有机溶剂中的保存稳定性优异的酞菁钛结晶，其制备方法和使用其的电子照相感光体。 在酞菁钛结晶中，制备这种酞菁钛结晶的方法和使用其的电子照相感光体，钛酞菁结晶的特征在​​于在CuKα中在布拉格角2＆amp;±0.2°= 27.2°具有最大峰 特征X射线衍射光谱和270-400℃范围内的一个峰，除了在差示扫描量热分析中伴随着吸附水蒸发的峰。

公开(公告)号：US07399564B2

公开(公告)日：2008-07-15

申请号：US11511953

申请日：2006-08-29

申请人： Jun Azuma ,  Junichiro Otsubo

发明人： Jun Azuma ,  Junichiro Otsubo

IPC分类号： G03G15/02

CPC分类号： G03G5/0564 ,  G03G5/0517 ,  G03G5/0596 ,  G03G5/0614 ,  G03G5/0666 ,  G03G5/0672 ,  G03G5/0696

摘要： An electrophotographic photoconductor where generation of cracks, crystallization of a photosensitive layer, and the like occur infrequently by sticking of finger oil. An electrophotographic photoconductor includes a conductive substrate on which a photosensitive layer containing at least a charge generating agent, a hole transfer agent and a binding resin is provided, wherein the binding resin is comprised of a plurality of polycarbonate resins; and the photosensitive layer contains a biphenyl derivative as a plasticizer component represented by the following general formula (1). (wherein R1 to R10 each independently represent a substituted or unsubstituted alkyl group having 1 to 12 carbon atoms, and R represents a substituted or unsubstituted aryl group having 1 to 12 carbon atoms or a substituted or unsubstituted alkylene group having 1 to 12 carbon atoms).

摘要翻译： 电子照相感光体通过粘结手指油很少发生裂纹，感光层结晶等。 电子照相感光体包括：导电性基材，其上设置至少含有电荷产生剂，空穴转移剂和粘合树脂的感光层，其中所述粘合树脂由多个聚碳酸酯树脂构成; 感光层含有由以下通式（1）表示的增塑剂成分的联苯衍生物。 （其中R 1至R 10各自独立地表示具有1至12个碳原子的取代或未取代的烷基，R表示取代或未取代的具有1至12个的芳基 碳原子或取代或未取代的碳原子数1〜12的亚烷基）。

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：US20070054209A1

公开(公告)日：2007-03-08

申请号：US11511953

申请日：2006-08-29

申请人： Jun Azuma ,  Junichiro Otsubo

发明人： Jun Azuma ,  Junichiro Otsubo

IPC分类号： G03G5/05 ,  G03G5/047

CPC分类号： G03G5/0564 ,  G03G5/0517 ,  G03G5/0596 ,  G03G5/0614 ,  G03G5/0666 ,  G03G5/0672 ,  G03G5/0696

摘要： An electrophotographic photoconductor where generation of cracks, crystallization of a photosensitive layer, and the like occur infrequently by sticking of finger oil. An electrophotographic photoconductor includes a conductive substrate on which a photosensitive layer containing at least a chargegenerating agent, a hole transfer agent and a binding resin is provided, wherein the binding resin is comprised of a plurality of polycarbonate resins; and the photosensitive layer contains a biphenyl derivative as a plasticizer component represented by the following general formula (1). (wherein R1 to R10 each independently represent a substituted or unsubstituted alkyl group having 1 to 12 carbon atoms, and R represents a substituted or unsubstituted aryl group having 1 to 12 carbon atoms or a substituted or unsubstituted alkylene group having 1 to 12 carbon atoms).

摘要翻译： 电子照相感光体通过粘结手指油很少发生裂纹，感光层结晶等。 电子照相感光体包括导电性基材，在该导电性基材上设置含有至少一种电荷产生剂，空穴转移剂和粘合树脂的感光层，其中粘合树脂由多种聚碳酸酯树脂构成; 感光层含有由以下通式（1）表示的增塑剂成分的联苯衍生物。 （其中R 1至R 10各自独立地表示具有1至12个碳原子的取代或未取代的烷基，R表示取代或未取代的具有1至12个的芳基 碳原子或取代或未取代的碳原子数1〜12的亚烷基）。

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：US20070281227A1

公开(公告)日：2007-12-06

申请号：US11805588

申请日：2007-05-24

申请人： Keiji Maruo ,  Junichiro Otsubo ,  Jun Azuma

发明人： Keiji Maruo ,  Junichiro Otsubo ,  Jun Azuma

IPC分类号： G03G5/047

CPC分类号： G03G5/0696 ,  G03G5/047 ,  G03G5/0564 ,  G03G5/0596 ,  G03G5/0614

摘要： The present invention is to provide a multilayer type electrophotographic photoconductor capable of stably obtaining a high image quality image over a long term by restraining the exposure memory and the photo memory, and an image forming apparatus comprising such a multilayer type electrophotographic photoconductor. A multilayer type electrophotographic photoconductor comprising a charge generating layer containing at least a charge generating agent on a base member directly or via an intermediate layer, and a charge transporting layer containing at least a charge transporting agent and a binder resin formed successively, wherein the light absorption degree at a 680 nm wavelength light beam in the photoconductive layer of the multilayer type electrophotographic photoconductor is of a value of 0.8 or less, and the light absorption degree at a 450 nm wavelength light beam is of a value of 1.0 or more, and an image forming apparatus comprising such a multilayer type electrophotographic photoconductor are provided.

摘要翻译： 本发明提供一种能够通过抑制曝光存储器和光存储器而能够长期稳定地获得高图像质量图像的多层电子照相感光体，以及包括这种多层型电子照相感光体的图像形成装置。 包括直接或通过中间层在基底上至少含有电荷产生剂的电荷产生层和至少含有电荷输送剂和依次形成的粘合剂树脂的电荷输送层的多层电子照相感光体，其中，所述光 多层电子照相感光体的光电导层中的680nm波长光束的吸收度为0.8以下，450nm波长光束的光吸收度为1.0以上， 提供了包括这种多层型电子照相感光体的图像形成装置。

公开(公告)号：US20120296082A1

公开(公告)日：2012-11-22

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： 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 electophotographic 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） - 钛基酞菁晶体，得到氧代 - 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：US07693454B2

公开(公告)日：2010-04-06

申请号：US11717190

申请日：2007-03-13

申请人： Jun Azuma ,  Junichiro Otsubo

发明人： Jun Azuma ,  Junichiro Otsubo

IPC分类号： G03G15/00

CPC分类号： G03G15/751 ,  G03G5/144

摘要： Disclosed is an image forming apparatus composed of a combination of multi-layered electrophotographic photoreceptor wherein an undercoat layer is made of at least fine titanium oxide particles and a binder resin and has a thickness of 3 μm or less and the fine titanium oxide particles are surface treated with alumina and silica and have a number average primary particle size of 20 nm or less, and exposing means by LED exposure. Thus, an electrophotographic photoreceptor having good balance between dispersibility of titanium oxide and electrical insulation properties is obtained and image fog does not occur under high temperature and high humidity environment and also excellent image quality can be maintained during continuous printing under low temperature and low humidity environment.

摘要翻译： 公开了一种图像形成装置，其由多层电子照相感光体的组合构成，其中底涂层由至少细小的氧化钛颗粒和粘合剂树脂制成，并且具有3μm或更小的厚度，并且氧化钛微粒是表面 用氧化铝和二氧化硅处理，数均原始粒径为20nm以下，通过LED曝光曝光。 因此，获得了在氧化钛的分散性和电绝缘性之间具有良好平衡的电子照相感光体，并且在高温和高湿度环境下不发生图像雾化，并且在低温和低湿度环境下连续印刷期间可以保持良好的图像质量 。

公开(公告)号：US4795814A

公开(公告)日：1989-01-03

申请号：US942915

申请日：1986-12-18

申请人： Shinji Nishitani ,  Junichi Minamikawa ,  Masanobu Kano ,  Junichiro Otsubo ,  Yoshiaki Manabe

发明人： Shinji Nishitani ,  Junichi Minamikawa ,  Masanobu Kano ,  Junichiro Otsubo ,  Yoshiaki Manabe

IPC分类号： A61K31/443 ,  A61K31/445 ,  A61K31/451 ,  A61K31/455 ,  A61P3/00 ,  A61P3/08 ,  A61P3/14 ,  A61P7/02 ,  A61P9/12 ,  A61P29/00 ,  A61P35/00 ,  A61P43/00 ,  C07C67/00 ,  C07C69/738 ,  C07C229/30 ,  C07C313/00 ,  C07C323/14 ,  C07D211/90 ,  C07D405/12 ,  C07D211/02

CPC分类号： C07D211/90

摘要： Process for preparing dihydropyridine derivatives and salts and esters thereof represented by the general formula ##STR1## from a phenyl derivative and an enamine derivative in which the phenyl derivative is prepared by reacting a compound of the formula ##STR2## with a compound of the formula ##STR3## in the presence of an aromatic amine selected from o-, m-, p- anisidine; m-, p-toluidine; p-chloroaniline; aniline and o-phenetidine.

摘要翻译： 由苯基衍生物和烯胺衍生物制备由通式“IMAGE”表示的二氢吡啶衍生物及其盐和酯的方法，其中苯基衍生物通过使下式化合物与式 在选自邻 - ，间 - ，对 - 茴香胺的芳族胺的存在下， 对 - 甲苯胺; 对氯苯胺; 苯胺和邻苯乙胺。