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：US20080145778A1

公开(公告)日：2008-06-19

申请号：US12013891

申请日：2008-01-14

申请人： Katsuichi Ohta ,  Tatsuya Niimi ,  Nozomu Tamoto

发明人： Katsuichi Ohta ,  Tatsuya Niimi ,  Nozomu Tamoto

IPC分类号： G03C5/56

CPC分类号： G03G5/0696 ,  G03G5/0564 ,  G03G5/142 ,  G03G5/144 ,  G03G5/14704 ,  G03G5/14734 ,  G03G5/14786 ,  G03G5/14791 ,  G03G2215/00957

摘要： An image forming apparatus including an image bearing member to operate at a linear velocity of at least 300 mm/sec, which includes an electroconductive substrate, a charge blocking layer located overlying the electroconductive substrate, a moiré prevention layer located overlying the charge blocking layer, and a photosensitive layer located overlying the moiré prevention layer. The photosensitive layer contains titanyl phthalocyanine having a primary particle diameter of not greater than 0.25 μm and having a crystal form having a CuKα X ray diffraction spectrum having a wavelength of 1.542 Å such that the maximum diffraction peak is observed at a Bragg (2θ) angle of 27.2±0.2°, main peaks are observed at a Bragg (2θ) angle of 9.4±0.2°, 9.6±0.2°, and 24.0±0.2°, and a peak is observed at a Bragg (2θ) angle of 7.3±0.2° as the lowest angle diffraction peak, while there is no peak between 9.4±0.2° and 7.3±0.2° and there is no peak at 26.3±0.2°).

摘要翻译： 一种图像形成装置，包括以至少300mm / sec的线速度运行的图像承载部件，其包括导电基板，位于导电基板上方的电荷阻挡层，位于电荷阻挡层上方的防止波纹的层， 以及位于覆盖防雾层的感光层。 感光层含有一次粒径不大于0.25μm的氧钛酞菁，具有CuKαX射线衍射光谱的波长为1.542的结晶形式，使得在Bragg（2θ）角度观察到最大衍射峰 的峰值为27.2±0.2°，在布拉格（2θ）角为9.4±0.2°，9.6±0.2°和24.0±0.2°时观测到主峰，在布拉格（2θ）角为7.3±0.2处观察到峰 °为最低角衍射峰，而在9.4±0.2°和7.3±0.2°之间没有峰，26.3±0.2°没有峰）。

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：US07251437B2

公开(公告)日：2007-07-31

申请号：US11068180

申请日：2005-03-01

申请人： Nozomu Tamoto ,  Tetsuro Suzuki ,  Yasuo Suzuki ,  Takahiko Tokumasu ,  Kazuhiko Watanabe ,  Hiroshi Nakai ,  Kohichi Ohshima ,  Noboru Tsukude ,  Nekka Matsuura

发明人： Nozomu Tamoto ,  Tetsuro Suzuki ,  Yasuo Suzuki ,  Takahiko Tokumasu ,  Kazuhiko Watanabe ,  Hiroshi Nakai ,  Kohichi Ohshima ,  Noboru Tsukude ,  Nekka Matsuura

IPC分类号： G03G15/00 ,  G03G15/02 ,  G03G15/18 ,  G03G21/00

CPC分类号： G03G15/751 ,  G03G5/0546 ,  G03G5/0614 ,  G03G5/0679 ,  G03G5/14734 ,  G03G5/14791 ,  G03G21/0058

摘要： An image formation apparatus including at least a moving body to be charged, a charging device for charging the body to be charged using discharge caused by applying a voltage to a charging member provided in contact with or proximity to the body to be charged, a latent image formation device for forming a latent image on a surface of the body to be charged which is charged by the charging device, and a development device for depositing toner on an image portion of the latent image formed by the latent image formation device, wherein an elastic displacement ratio τe for the surface of the body to be charged is equal to or greater than 40% which is defined by the following formula, elastic displacement ratio τe (%)=[(maximum displacement)-(plastic displacement)]/(maximum displacement)×100, and the image formation apparatus further includes a protective material feeding device for depositing a protective material on at least a discharge area of the surface of the body to be charged.

摘要翻译： 一种图像形成装置，至少包括要充电的移动体，充电装置，用于通过向与被充电体接触或接近的充电构件施加电压而使待充电的体充电，潜在的 用于在由充电装置充电的被充电体的表面上形成潜像的图像形成装置，以及用于在由潜像形成装置形成的潜像的图像部分上沉积调色剂的显影装置，其中， 要充电的物体表面的弹性位移比值等于或大于40％，由以下公式定义：<？in-line-formula description =“In-line Formulas”end =“lead”？ >弹性位移比率（％）= [（最大位移） - （塑性位移）] /（最大位移）×100，<？在线公式描述=“在线公式”end =“tail”？>和 图像形成装置还包括保护材料 馈送装置，用于在要充电的身体的表面的至少一个放电区域上沉积保护材料。

公开(公告)号：US07127196B2

公开(公告)日：2006-10-24

申请号：US11017731

申请日：2004-12-22

申请人： Hidetoshi Kami ,  Tatsuya Niimi ,  Akihiko Matsuyama ,  Eiji Kurimoto ,  Nozomu Tamoto

发明人： Hidetoshi Kami ,  Tatsuya Niimi ,  Akihiko Matsuyama ,  Eiji Kurimoto ,  Nozomu Tamoto

IPC分类号： G03G15/00

CPC分类号： G03G5/14791 ,  G03G5/0217 ,  G03G5/0507 ,  G03G5/14704 ,  G03G5/14795

摘要： An image forming apparatus and a process cartridge having a photoreceptor including an electroconductive substrate; and a photosensitive layer located overlying the electroconductive substrate and comprising a charge generation material, a charge transport material and an inorganic filler, wherein the content of the inorganic filler at a surface side of the photosensitive layer is greater than that at a bottom side of the photosensitive layer near the electroconductive substrate, and wherein an outermost layer of the photoreceptor has a water vapor permeability not greater than 50 g·m31 2·24 h−1.

摘要翻译： 一种图像形成装置和具有感光体的处理盒，该感光体包括导电性基板; 以及位于导电基底上的感光层，其包含电荷产生材料，电荷传输材料和无机填料，其中感光层表面侧的无机填料的含量大于在感光层的底侧的含量 感光层，并且其中感光体的最外层具有不大于50g / cm 2·24h -1 -1的水蒸气渗透性。

公开(公告)号：US20060204259A1

公开(公告)日：2006-09-14

申请号：US11431716

申请日：2006-05-11

申请人： Kazuhiko Watanabe ,  Kazuhito Watanabe ,  Yasuo Suzuki ,  Nozomu Tamoto ,  Hiroshi Nakai ,  Takahiko Tokumasu ,  Kohichi Ohshima

发明人： Kazuhiko Watanabe ,  Kazuhito Watanabe ,  Yasuo Suzuki ,  Nozomu Tamoto ,  Hiroshi Nakai ,  Takahiko Tokumasu ,  Kohichi Ohshima

IPC分类号： G03G15/00 ,  G03G15/02

CPC分类号： G03G15/751 ,  G03G15/0208 ,  G03G15/0216 ,  G03G15/025 ,  G03G2215/00957 ,  G03G2221/0005

摘要： An image forming apparatus of the present invention includes a movable body to be charged and a charger including a charging member that contacts or adjoins the body to be charged and applies a voltage, including an AC component, to the charging member for thereby charging the body. A protection substance for protecting the surface of the body from deterioration ascribable to charging is caused to exist on the body. The number of particular elements, contained in the protection substance and detected by an X-ray photon spectral analyzer (XPS) in a zone where the charging member charges the body, is held in a particular ratio to the total number of all elements constituting the outermost surface of the body and also detected by the XPS.

公开(公告)号：US20060197823A1

公开(公告)日：2006-09-07

申请号：US11367786

申请日：2006-03-06

申请人： Katsuichi Ohta ,  Tatsuya Niimi ,  Nozomu Tamoto

发明人： Katsuichi Ohta ,  Tatsuya Niimi ,  Nozomu Tamoto

IPC分类号： B41J2/415

CPC分类号： G03G5/0696 ,  G03G5/0564 ,  G03G5/142 ,  G03G5/144 ,  G03G5/14704 ,  G03G5/14734 ,  G03G5/14786 ,  G03G5/14791 ,  G03G2215/00957

摘要： An image forming apparatus including an image bearing member to operate at a linear velocity of at least 300 mm/sec, which includes an electroconductive substrate, a charge blocking layer located overlying the electroconductive substrate, a moiré prevention layer located overlying the charge blocking layer, and a photosensitive layer located overlying the moiré prevention layer. The photosensitive layer contains titanyl phthalocyanine having a primary particle diameter of not greater than 0.25 μm and having a crystal form having a CuKα X ray diffraction spectrum having a wavelength of 1.542 Å such that the maximum diffraction peak is observed at a Bragg (2θ) angle of 27.2±0.2°, main peaks are observed at a Bragg (2θ) angle of 9.4±0.2°, 9.6±0.2°, and 24.0±0.2°, and a peak is observed at a Bragg (2θ) angle of 7.3±0.2° as the lowest angle diffraction peak, while there is no peak between 9.4±0.2 and 7.3±0.2 and there is no peak at 26.3±0.2°).

摘要翻译： 一种图像形成装置，包括以至少300mm / sec的线速度运行的图像承载部件，其包括导电基板，位于导电基板上方的电荷阻挡层，位于电荷阻挡层上方的防止波纹的层， 以及位于覆盖防雾层的感光层。 感光层含有一次粒径不大于0.25μm的氧钛酞菁，具有CuKαX射线衍射光谱的波长为1.542的结晶形式，使得在Bragg（2θ）角度观察到最大衍射峰 的峰值为27.2±0.2°，在布拉格（2θ）角为9.4±0.2°，9.6±0.2°和24.0±0.2°时观测到主峰，在布拉格（2θ）角为7.3±0.2处观察到峰 °作为最低角衍射峰，而在9.4±0.2和7.3±0.2之间没有峰，而在26.3±0.2°处没有峰。

公开(公告)号：US20060134540A1

公开(公告)日：2006-06-22

申请号：US11304711

申请日：2005-12-16

申请人： Maiko Kondo ,  Tatsuya Niimi ,  Naohiro Toda ,  Takeshi Orito ,  Nozomu Tamoto ,  Katsuichi Ohta

发明人： Maiko Kondo ,  Tatsuya Niimi ,  Naohiro Toda ,  Takeshi Orito ,  Nozomu Tamoto ,  Katsuichi Ohta

IPC分类号： G03G5/06

CPC分类号： C08G69/50

摘要： A coating liquid including an N-alkoxymethylated nylon and a solvent, wherein the N-alkoxymethylated nylon includes one or more ions in an amount of from 200 to 500 ppm based on a weight of the N-alkoxymethylated nylon or one or more alkylamines in an amount of from 15 to 100 ppm based on a weight of the N-alkoxymethylated nylon. A photoreceptor including an electroconductive substrate; a charge blocking layer located overlying the substrate; a moiré preventing layer located overlying the charge blocking layer; and a photosensitive layer located overlying the moiré preventing layer, wherein the charge blocking layer is formed using the coating liquid.

摘要翻译： 包括N-烷氧基甲基化尼龙和溶剂的涂布液，其中所述N-烷氧基甲基化尼龙包括一种或多种基于N-烷氧基甲基化尼龙或一种或多种烷基胺的重量的离子，其量为200-500ppm 相对于N-烷氧基甲基化尼龙的重量，为15〜100ppm。 包含导电基片的感光体; 位于衬底上方的电荷阻挡层; 位于覆盖电荷阻挡层的莫尔防止层; 以及位于覆盖防雾层的感光层，其中使用涂布液形成电荷阻挡层。

公开(公告)号：US06936388B2

公开(公告)日：2005-08-30

申请号：US10103791

申请日：2002-03-25

申请人： Tetsuro Suzuki ,  Kazukiyo Nagai ,  Nozomu Tamoto ,  Eiji Kurimoto ,  Hidetoshi Kami

发明人： Tetsuro Suzuki ,  Kazukiyo Nagai ,  Nozomu Tamoto ,  Eiji Kurimoto ,  Hidetoshi Kami

IPC分类号： G03G5/10 ,  G03G5/14 ,  G03G5/147

CPC分类号： G03G5/142 ,  G03G5/10 ,  G03G5/104 ,  G03G5/105 ,  G03G5/144

摘要： An electrophotographic photoreceptor in which at least a photosensitive layer is provided above an electroconductive substrate, the outermost surface layer of the electroconductive substrate contains at least an inorganic filler, a binder resin, and an aliphatic polyester, or, alternatively, the outermost surface layer of the electroconductive substrate contains at least an inorganic filler and a binder resin and the binder resin is a copolymer polyarylate having an alkylene-arylcarboxylate structural unit, also an image forming method, image forming apparatus, and image forming apparatus processing unit in which the electrophotographic photoreceptor is used.

公开(公告)号：US06899983B2

公开(公告)日：2005-05-31

申请号：US10405843

申请日：2003-04-03

申请人： Nozomu Tamoto ,  Yasuo Suzuki ,  Kazukiyo Nagai ,  Hongguo Li

发明人： Nozomu Tamoto ,  Yasuo Suzuki ,  Kazukiyo Nagai ,  Hongguo Li

IPC分类号： G03G5/05 ,  G03G5/147 ,  G03G5/14

CPC分类号： G03G5/0557 ,  G03G5/0578 ,  G03G5/0592 ,  G03G5/14717 ,  G03G5/14747 ,  G03G5/14791

摘要： The present invention aims to provide a photoconductor having improved wear resistance, and which has reduced foreign matter attached on the photoconductor surface.The electrophotographic photoconductor of the present invention is formed by sequentially disposing a photoconductive layer comprising at least one layer and a protective layer on an electroconductive support, and the protective layer comprises an acrylic resin and/or a methacrylic resin and a resin composition comprising an acryl-modified polyorganosiloxane compound which is dispersed in or compatible with the acrylic resin and/or the methacrylic resin.

摘要翻译： 本发明的目的在于提供一种具有改善的耐磨性的光电导体，并且减少了附着在感光体表面上的异物。 本发明的电子照相感光体是通过在导电性载体上依次设置包含至少一层和保护层的光电导层形成的，保护层包括丙烯酸树脂和/或甲基丙烯酸树脂和包含丙烯酸树脂的树脂组合物 改性的聚有机硅氧烷化合物，其分散在丙烯酸树脂和/或甲基丙烯酸树脂中或与其相容。