公开(公告)号：US07507511B2

公开(公告)日：2009-03-24

申请号：US11332545

申请日：2006-01-17

申请人： Nozomu Tamoto ,  Tatsuya Niimi ,  Maiko Koeda ,  Tetsuro Suzuki ,  Takehiko Kinoshita ,  Suzuka Nozoe ,  Katsuichi Ohta

发明人： Nozomu Tamoto ,  Tatsuya Niimi ,  Maiko Koeda ,  Tetsuro Suzuki ,  Takehiko Kinoshita ,  Suzuka Nozoe ,  Katsuichi Ohta

IPC分类号： G03G15/04

CPC分类号： G03G5/142 ,  G03G5/043 ,  G03G5/0546 ,  G03G5/0589 ,  G03G5/0592 ,  G03G5/071 ,  G03G5/144

摘要： An electrophotographic photoreceptor, including: an electroconductive substrate; a first undercoat layer including no metal oxide, located overlying the electroconductive substrate; a second undercoat layer including a metal oxide and a binder resin, located overlying the first undercoat layer; and a photosensitive layer located overlying the second undercoat layer, wherein the metal oxide included in the second undercoat layer has a specific resistivity not less than 107 Ω·cm and a block isocyanate compound.

摘要翻译： 一种电子照相感光体，包括：导电性基体; 不包含位于导电基片上的金属氧化物的第一底涂层; 第二底涂层，包括位于第一底涂层上的金属氧化物和粘合剂树脂; 以及位于第二底涂层上的感光层，其中包含在第二底涂层中的金属氧化物具有不小于107Ω·cm的电阻率和嵌段异氰酸酯化合物。

公开(公告)号：US20060177749A1

公开(公告)日：2006-08-10

申请号：US11332545

申请日：2006-01-17

申请人： Nozomu Tamoto ,  Tatsuya Niimi ,  Maiko Koeda ,  Tetsuro Suzuki ,  Takehiko Kinoshita ,  Suzuka Nozoe ,  Katsuichi Ohta

发明人： Nozomu Tamoto ,  Tatsuya Niimi ,  Maiko Koeda ,  Tetsuro Suzuki ,  Takehiko Kinoshita ,  Suzuka Nozoe ,  Katsuichi Ohta

IPC分类号： G03G5/14

CPC分类号： G03G5/142 ,  G03G5/043 ,  G03G5/0546 ,  G03G5/0589 ,  G03G5/0592 ,  G03G5/071 ,  G03G5/144

摘要： An electrophotographic photoreceptor, including: an electroconductive substrate; a first undercoat layer including no metal oxide, located overlying the electroconductive substrate; a second undercoat layer including a metal oxide and a binder resin, located overlying the first undercoat layer; and a photosensitive layer located overlying the second undercoat layer, wherein the metal oxide included in the second undercoat layer has a specific resistivity not less than 107 Ω·cm and a block isocyanate compound.

摘要翻译： 一种电子照相感光体，包括：导电性基体; 不包含位于导电基片上的金属氧化物的第一底涂层; 第二底涂层，包括位于第一底涂层上的金属氧化物和粘合剂树脂; 以及位于第二底涂层上的感光层，其中包含在第二底涂层中的金属氧化物具有不小于10Ω·cm的电阻率和嵌段异氰酸酯化合物。

公开(公告)号：US20050175911A1

公开(公告)日：2005-08-11

申请号：US10974814

申请日：2004-10-28

申请人： Nozomu Tamoto ,  Tatsuya Niimi ,  Tetsuro Suzuki ,  Katsuichi Ohta

发明人： Nozomu Tamoto ,  Tatsuya Niimi ,  Tetsuro Suzuki ,  Katsuichi Ohta

IPC分类号： G03G5/047 ,  G03G5/05 ,  G03G5/06 ,  G03G5/07 ,  G03G15/02

CPC分类号： G03G5/0592 ,  G03G5/0546 ,  G03G5/0589 ,  G03G5/0696 ,  G03G5/071

摘要： The object of the present invention is to provide a photoconductor that is highly sensitive, stable in image quality under repeated usages, and affords prolonged life. In order attain the object, a photoconductor is provided that comprises a charge generating layer, a charge transporting layer, and a crosslinked charge transporting layer, on an substrate in order, the charge generating layer contains titanyl phthalocyanine crystal particles that exhibit a highest peak at 27.2°, main peaks at 9.4°, 9.6° and 24.0°, a peak at 7.3° as the lowest angle, and with no peaks in a range between 7.3° and 9.4°, and with no peak at 26.3° as Bragg 2θangles (±0.2°) in terms of CuK-α characteristic X-ray wavelength at 1.542 Å, and the averaged primary particle size of the titanyl phthalocyanine crystal particles is 0.25 μm or less, and the crosslinked charge transporting layer contains a reaction product of a radical polymerizable monomer having three or more functionalities and no charge transporting structure and a radical polymerizable compound having one functionality and a charge transporting structure, and the thickness of the crosslinked charge transporting layer is 1 to 10 μm.

摘要翻译： 本发明的目的是提供一种在重复使用下具有高灵敏度，稳定的图像质量的感光体，并且延长使用寿命。 为了达到该目的，提供了一种光电导体，其包括电荷产生层，电荷输送层和交联的电荷输送层，依次在基板上，电荷产生层含有氧化钛酞菁晶体颗粒，其在 27.2°，主峰在9.4°，9.6°和24.0°，最低角为7.3°的峰值，7.3°和9.4°之间的峰值没有峰值，在26.3°没有峰值作为布拉格二角形 ±0.2°），钛氧酞菁结晶粒子的平均一次粒径为0.25μm以下，交联电荷输送层含有自由基的反应产物 具有三个或更多个官能团和无电荷输送结构的可聚合单体和具有一个官能度和电荷输送结构的自由基聚合性化合物，以及交联的c 输送层为1〜10毫米。

公开(公告)号：US20070154825A1

公开(公告)日：2007-07-05

申请号：US10543927

申请日：2004-12-01

申请人： Nozomu Tamoto ,  Tatsuya Niimi ,  Tetsuro Suzuki ,  Katsuichi Ohta

发明人： Nozomu Tamoto ,  Tatsuya Niimi ,  Tetsuro Suzuki ,  Katsuichi Ohta

IPC分类号： G03G5/147 ,  G03G5/047

CPC分类号： G03G5/144 ,  G03G5/047 ,  G03G5/0592 ,  G03G5/0696 ,  G03G5/142

摘要： An electrophotographic photoconductor that is excellent in the stability of image quality and can realize high durability is provided. In an electrophotographic photoconductor in which an underlying layer, a photoconductive layer, and a crosslinked-type charge transportation layer are stacked on an electrically conductive support in order, the underlying layer is composed of at least two layers being a layer containing an inorganic pigment and a layer including no inorganic pigment, and the crosslinked-type charge transportation layer is formed by curing, at least, a three-or-more-functional radical-polymerizable monomer having no charge transporting structure and a radical-polymerizable compound having one-functional charge transporting structure.

摘要翻译： 提供了图像质量稳定性优异并且可以实现高耐久性的电子照相感光体。 在其中将下层，光电导层和交联型电荷传输层按顺序层叠在导电载体上的电子照相感光体中，下层由至少两层构成，该层是含有无机颜料的层， 不含无机颜料的层，并且交联型电荷输送层通过至少固化不具有电荷输送结构的三官能以上的自由基聚合性单体和具有一官能的自由基聚合性化合物而形成 电荷输送结构。

公开(公告)号：US07560203B2

公开(公告)日：2009-07-14

申请号：US10543927

申请日：2004-12-01

申请人： Nozomu Tamoto ,  Tatsuya Niimi ,  Tetsuro Suzuki ,  Katsuichi Ohta

发明人： Nozomu Tamoto ,  Tatsuya Niimi ,  Tetsuro Suzuki ,  Katsuichi Ohta

IPC分类号： G03G5/147

CPC分类号： G03G5/144 ,  G03G5/047 ,  G03G5/0592 ,  G03G5/0696 ,  G03G5/142

摘要： An electrophotographic photoconductor that is excellent in the stability of image quality and can realize high durability is provided. In an electrophotographic photoconductor in which an underlying layer, a photoconductive layer, and a crosslinked-type charge transportation layer are stacked on an electrically conductive support in order, the underlying layer is composed of at least two layers being a layer containing an inorganic pigment and a layer including no inorganic pigment, and the crosslinked-type charge transportation layer is formed by curing, at least, a three-or-more-functional radical-polymerizable monomer having no charge transporting structure and a radical-polymerizable compound having one-functional charge transporting structure.

摘要翻译： 提供了图像质量稳定性优异并且可以实现高耐久性的电子照相感光体。 在其中将下层，光电导层和交联型电荷传输层按顺序层叠在导电载体上的电子照相感光体中，下层由至少两层构成，该层是含有无机颜料的层， 不含无机颜料的层，并且交联型电荷输送层通过至少固化不具有电荷输送结构的三官能以上的自由基聚合性单体和具有一官能的自由基聚合性化合物而形成 电荷输送结构。

公开(公告)号：US07371490B2

公开(公告)日：2008-05-13

申请号：US10974814

申请日：2004-10-28

申请人： Nozomu Tamoto ,  Tatsuya Niimi ,  Tetsuro Suzuki ,  Katsuichi Ohta

发明人： Nozomu Tamoto ,  Tatsuya Niimi ,  Tetsuro Suzuki ,  Katsuichi Ohta

IPC分类号： G03G5/047

CPC分类号： G03G5/0592 ,  G03G5/0546 ,  G03G5/0589 ,  G03G5/0696 ,  G03G5/071

摘要： The object of the present invention is to provide a photoconductor that is highly sensitive, stable in image quality under repeated usages, and affords prolonged life.In order attain the object, a photoconductor is provided that comprises a charge generating layer, a charge transporting layer, and a crosslinked charge transporting layer, on an substrate in order,the charge generating layer contains titanyl phthalocyanine crystal particles that exhibit a highest peak at 27.2°, main peaks at 9.4°, 9.6° and 24.0°, a peak at 7.3° as the lowest angle, and with no peaks in a range between 7.3° and 9.4°, and with no peak at 26.3° as Bragg 2θangles (±0.2°) in terms of CuK-α characteristic X-ray wavelength at 1.542 Å, and the averaged primary particle size of the titanyl phthalocyanine crystal particles is 0.25 μm or less, andthe crosslinked charge transporting layer contains a reaction product of a radical polymerizable monomer having three or more functionalities and no charge transporting structure and a radical polymerizable compound having one functionality and a charge transporting structure, and the thickness of the crosslinked charge transporting layer is 1 to 10 μm.

摘要翻译： 本发明的目的是提供一种在重复使用下具有高灵敏度，稳定的图像质量的感光体，并且延长使用寿命。 为了达到该目的，提供了一种光电导体，其包括电荷产生层，电荷输送层和交联的电荷输送层，依次在基板上，电荷产生层含有氧化钛酞菁晶体颗粒，其在 27.2°，主峰在9.4°，9.6°和24.0°，最低角为7.3°的峰值，7.3°和9.4°之间的峰值没有峰值，在26.3°没有峰值作为布拉格二角形 ±0.2°），钛氧酞菁结晶粒子的平均一次粒径为0.25μm以下，交联电荷输送层含有自由基的反应产物 具有三个或更多个官能团和无电荷输送结构的可聚合单体和具有一个官能度和电荷输送结构的自由基聚合性化合物，以及交联的c 输送层为1〜10毫米。

公开(公告)号：US06844124B2

公开(公告)日：2005-01-18

申请号：US10638637

申请日：2003-08-12

申请人： Hiroshi Ikuno ,  Hidetoshi Kami ,  Ryohichi Kitajima ,  Narihito Kojima ,  Akihiko Matsuyama ,  Hiroshi Nagame ,  Katsuichi Ohta ,  Tetsuro Suzuki ,  Nozomu Tamoto ,  Hiroshi Tamura ,  Yohta Sakon ,  Eiji Kurimoto ,  Tatsuya Niimi ,  Yuka Miyamoto

发明人： Hiroshi Ikuno ,  Hidetoshi Kami ,  Ryohichi Kitajima ,  Narihito Kojima ,  Akihiko Matsuyama ,  Hiroshi Nagame ,  Katsuichi Ohta ,  Tetsuro Suzuki ,  Nozomu Tamoto ,  Hiroshi Tamura ,  Yohta Sakon ,  Eiji Kurimoto ,  Tatsuya Niimi ,  Yuka Miyamoto

IPC分类号： G03G5/00 ,  G03G5/05 ,  G03G5/07 ,  G03G5/147 ,  G03G15/02

CPC分类号： G03G5/0507 ,  G03G5/147 ,  G03G5/14704

摘要： An electrophotographic photoreceptor including an electroconductive substrate; a photosensitive layer located overlying the electroconductive substrate and including a resin; and a surface layer including a filler and a binder resin, wherein the surface layer and the photosensitive layer have a continuous structure, and wherein the surface layer satisfies the following relationship: σ≦D/5, wherein D represents an average of maximum thicknesses of the surface layer in units of micrometers in 20 segments of 5 μm wide when a portion of a cross section of the photoreceptor of 100 μm wide is divided into the 20 segments, and σ represents a standard deviation of the 20 maximum thicknesses.

摘要翻译： 包含导电基片的电子照相感光体; 位于导电基底上方并包括树脂的感光层; 以及包含填料和粘合剂树脂的表面层，其中所述表面层和感光层具有连续的结构，并且其中所述表面层满足以下关系：σ≤D/ 5，其中D表示最大厚度的平均值 的表面层，当100μm宽的感光体的横截面的一部分被划分为20个区段时，20微米宽的5个区段中的微米单位为微米，而σ为20个最大厚度的标准偏差。

公开(公告)号：US06641964B2

公开(公告)日：2003-11-04

申请号：US09985348

申请日：2001-11-02

申请人： Hiroshi Ikuno ,  Hidetoshi Kami ,  Ryohichi Kitajima ,  Narihito Kojima ,  Akihiko Matsuyama ,  Hiroshi Nagame ,  Katsuichi Ohta ,  Tetsuro Suzuki ,  Nozomu Tamoto ,  Hiroshi Tamura ,  Yohta Sakon ,  Eiji Kurimoto ,  Tatsuya Niimi ,  Yuka Miyamoto

发明人： Hiroshi Ikuno ,  Hidetoshi Kami ,  Ryohichi Kitajima ,  Narihito Kojima ,  Akihiko Matsuyama ,  Hiroshi Nagame ,  Katsuichi Ohta ,  Tetsuro Suzuki ,  Nozomu Tamoto ,  Hiroshi Tamura ,  Yohta Sakon ,  Eiji Kurimoto ,  Tatsuya Niimi ,  Yuka Miyamoto

IPC分类号： G03G514

CPC分类号： G03G5/0507 ,  G03G5/147 ,  G03G5/14704

摘要： An electrophotographic photoreceptor including an electroconductive substrate; a photosensitive layer located overlying the electroconductive substrate and including a resin; and a surface layer including a filler and a binder resin, wherein the surface layer and the photosensitive layer have a continuous structure, and wherein the surface layer satisfies the following relationship: &sgr;≦D/5, wherein D represents an average of maximum thicknesses of the surface layer in units of micrometers in 20 segments of 5 &mgr;m wide when a portion of a cross section of the photoreceptor of 100 &mgr;m wide is divided into the 20 segments, and &sgr; represents a standard deviation of the 20 maximum thicknesses.

公开(公告)号：US07282529B2

公开(公告)日：2007-10-16

申请号：US10625570

申请日：2003-07-24

申请人： Nozomu Tamoto ,  Tetsuro Suzuki ,  Hiroshi Tamura ,  Tatsuya Niimi ,  Akihiko Matsuyama ,  Eiji Kurimoto ,  Hidetoshi Kami

发明人： Nozomu Tamoto ,  Tetsuro Suzuki ,  Hiroshi Tamura ,  Tatsuya Niimi ,  Akihiko Matsuyama ,  Eiji Kurimoto ,  Hidetoshi Kami

IPC分类号： C08K5/09

CPC分类号： G03G5/0514 ,  G03G5/0507 ,  G03G5/051 ,  G03G5/14704 ,  G03G5/14708 ,  Y10S430/103

摘要： An electrophotographic photoreceptor including an electroconductive substrate, a photosensitive layer located overlying the electroconductive substrate, and optionally a protective layer overlying the photosensitive layer, wherein an outermost layer of the photoreceptor includes a filler, a binder resin and an organic compound having an acid value of from 10 to 700 mgKOH/g. The photosensitive layer can be the outermost layer. A coating liquid for an outermost layer of a photoreceptor including a filler, a binder resin, an organic compound having an acid value of from 10 to 700 mgKOH/g and plural organic solvents. A method for preparing a photoreceptor including forming a photosensitive layer, and coating the coating liquid on the photosensitive layer. An image forming method and apparatus and a process cartridge using the photoreceptor are also provided.

摘要翻译： 包括导电基片的电子照相感光体，位于导电基底上的感光层，以及任选地覆盖感光层的保护层，其中感光体的最外层包括填料，粘合剂树脂和酸值为 10至700mgKOH / g。 感光层可以是最外层。 包含填充剂，粘合剂树脂，酸值为10〜700mgKOH / g的有机化合物和多种有机溶剂的感光体的最外层的涂布液。 一种制备感光体的方法，包括形成感光层，并将涂布液涂覆在感光层上。 还提供了一种图像形成方法和装置以及使用感光体的处理盒。

公开(公告)号：US06858362B2

公开(公告)日：2005-02-22

申请号：US10625408

申请日：2003-07-23

申请人： Nozomu Tamoto ,  Tetsuro Suzuki ,  Hiroshi Tamura ,  Tatsuya Niimi ,  Akihiko Matsuyama ,  Eiji Kurimoto ,  Hidetoshi Kami

发明人： Nozomu Tamoto ,  Tetsuro Suzuki ,  Hiroshi Tamura ,  Tatsuya Niimi ,  Akihiko Matsuyama ,  Eiji Kurimoto ,  Hidetoshi Kami

IPC分类号： G03G5/05 ,  G03G5/147

CPC分类号： G03G5/0514 ,  G03G5/0507 ,  G03G5/051 ,  G03G5/14704 ,  G03G5/14708 ,  Y10S430/103

摘要： An electrophotographic photoreceptor including an electroconductive substrate, a photosensitive layer located overlying the electroconductive substrate, and optionally a protective layer overlying the photosensitive layer, wherein an outermost layer of the photoreceptor includes a filler, a binder resin and an organic compound having an acid value of from 10 to 700 mgKOH/g. The photosensitive layer can be the outermost layer. A coating liquid for an outermost layer of a photoreceptor including a filler, a binder resin, an organic compound having an acid value of from 10 to 700 mgKOH/g and plural organic solvents. A method for preparing a photoreceptor including forming a photosensitive layer, and coating the coating liquid on the photosensitive layer. An image forming method and apparatus and a process cartridge using the photoreceptor are also provided.

摘要翻译： 包括导电基片的电子照相感光体，位于导电基底上的感光层，以及任选地覆盖感光层的保护层，其中感光体的最外层包括填料，粘合剂树脂和酸值为 10至700mgKOH / g。 感光层可以是最外层。 包含填充剂，粘合剂树脂，酸值为10〜700mgKOH / g的有机化合物和多种有机溶剂的感光体的最外层的涂布液。 一种制备感光体的方法，包括形成感光层，并将涂布液涂覆在感光层上。 还提供了一种图像形成方法和装置以及使用感光体的处理盒。