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    Toner for electrophotography
    2.
    发明授权
    Toner for electrophotography 有权
    电子照相用碳粉

    公开(公告)号：US6066423A

    公开(公告)日：2000-05-23

    申请号：US266025

    申请日：1999-03-11

    申请人： Tatsuo Imafuku ,  Toshihisa Ishida ,  Yoshinori Urata ,  Takahiro Bito ,  Nobuyasu Honda

    发明人： Tatsuo Imafuku ,  Toshihisa Ishida ,  Yoshinori Urata ,  Takahiro Bito ,  Nobuyasu Honda

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09

    CPC分类号： G03G9/08795 ,  G03G9/08797 ,  G03G9/0906

    摘要： A toner for electrophotography includes a binder resin as the main component and a coloring agent, wherein the binder resin contains a low molecular weight polypropylene as a separating agent, encapsulated therein; the acid value of the binder resin is adjusted equal to 1.0 (mgKOH/g) or below; and the coloring agent has a surface which is not oxidation treated and presents a pH of 7.0 or higher. Limiting the added amount and the diameter of encapsulated and dispersed polypropylene wax provides prevention against both the setoff and filming phenomena.

    摘要翻译： 用于电子照相的调色剂包括粘合剂树脂作为主要成分和着色剂，其中粘合剂树脂含有作为分离剂的低分子量聚丙烯，被包封在其中; 将粘合剂树脂的酸值调节为1.0（mgKOH / g）以下; 并且着色剂具有未经氧化处理的表面，其pH为7.0以上。 限制包封和分散的聚丙烯蜡的添加量和直径提供了防止切割和成膜现象的预防。

    Electrophotographic developer and image-forming method using the developer
    3.
    发明授权
    Electrophotographic developer and image-forming method using the developer 有权
    使用显影剂的电子照相显影剂和成像方法

    公开(公告)号：US06864031B2

    公开(公告)日：2005-03-08

    申请号：US10752463

    申请日：2004-01-05

    申请人： Toshihisa Ishida ,  Tatsuo Imafuku ,  Junichi Saito ,  Takahiro Bito

    发明人： Toshihisa Ishida ,  Tatsuo Imafuku ,  Junichi Saito ,  Takahiro Bito

    IPC分类号： G03G9/08 ,  G03G9/107 ,  G03G9/113 ,  G03G13/09 ,  G03G15/14

    CPC分类号： G03G9/0819 ,  G03G9/1075 ,  G03G9/1136 ,  G03G13/09

    摘要： The present invention provides an electrophotographic developer which reduces toner contamination on the surface of a developer carrier even when a development effective range is narrowed and which is stabilized in an image quality in every environmental situation and has a long life and a low cost and an image-forming method using the same.In the present invention, used for the electrostatically charged-image holder described above having a radius of curvature of 18 mm or less in a development effective range is the electrophotographic developer which is a two-component developer comprising a toner comprising at least a binder and a colorant and a carrier which is coated with a resin and has a weight average particle diameter of 40 to 100 μm, wherein the above toner has a volume average particle diameter of 8 to 11.5 μm, and the toner particles having a diameter of 6.35 μm or less account for 20 number % or less.

    摘要翻译： 本发明提供了一种电子照相显影剂，即使在显影有效范围变窄并且在每种环境情况下稳定在图像质量中并且具有长寿命和低成本以及图像的情况下，也可以减少显影剂载体表面上的调色剂污染 在本发明中，在显影有效范围内用于上述具有18mm或更小的曲率半径的静电带电图像保持器的本发明是作为双组分显​​影剂的电子照相显影剂，其包含 包含至少粘合剂和着色剂的调色剂和涂覆有树脂并具有40至100μm重量平均粒径的载体，其中上述调色剂的体积平均粒径为8至11.5μm，并且调色剂 直径6.35μm或更小的颗粒占20％或更少。

    Toner, Developer, and process for producing the same
    4.
    发明授权
    Toner, Developer, and process for producing the same 失效
    调色剂，开发者及其生产工艺

    公开(公告)号：US6004713A

    公开(公告)日：1999-12-21

    申请号：US48398

    申请日：1998-03-26

    申请人： Yoshinori Urata ,  Hitoshi Nagahama ,  Yasuharu Morinishi ,  Satoshi Ogawa ,  Toshihisa Ishida ,  Tadashi Nakamura ,  Takahiro Bito

    发明人： Yoshinori Urata ,  Hitoshi Nagahama ,  Yasuharu Morinishi ,  Satoshi Ogawa ,  Toshihisa Ishida ,  Tadashi Nakamura ,  Takahiro Bito

    IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G9/00

    CPC分类号： G03G9/09741 ,  G03G9/081

    摘要： A process for preparing a toner includes forming a melt-kneaded mixture by mixing a raw material mixture containing a quaternary ammonium salt compound at a temperature ranging from (M-7).degree. C. to (M+7).degree. C., where M is a melting point of the quaternary ammonium salt compound, with a kneading device having a discharge port whose temperature is set lower than a temperature at which a melt viscosity of the melt-kneaded mixture at the discharge port is not higher than 10,000 Pa.a, removing the melt-kneaded mixture from the kneading device, rolling out the melt-kneaded mixture to a thickness ranging from 1.2 mm to 3.0 mm, and cooling down the melt-kneaded mixture. With the use of the toner produced by this process, the amount of charge during copying is retained in an appropriate range irrespectively of the working atmosphere and conditions of use, thereby maintaining a good image density.

    摘要翻译： 制备调色剂的方法包括通过在（M-7）℃至（M + 7）℃的温度范围内混合含有季铵盐化合物的原料混合物来形成熔融捏合的混合物，其中M 是季铵盐化合物的熔点，其捏合装置具有一个排出口，该排出口的温度设定为低于排出口处的熔融捏合混合物的熔融粘度不高于10,000Pa·a 从捏合装置中除去熔融捏合的混合物，将熔融捏合的混合物推出至1.2mm至3.0mm的厚度，并冷却熔融捏合的混合物。 通过使用通过该方法生产的调色剂，复印期间的电荷量保持在适当的范围内，而与工作气氛和使用条件无关，从而保持良好的图像浓度。

    Developing toner for electrostatic latent images, imaging forming method and image forming apparatus
    7.
    发明申请
    Developing toner for electrostatic latent images, imaging forming method and image forming apparatus 有权
    显影静电潜像用调色剂，成像方法和图像形成装置

    公开(公告)号：US20050221214A1

    公开(公告)日：2005-10-06

    申请号：US11090001

    申请日：2005-03-28

    申请人： Hitoshi Nagahama ,  Tatsuo Imafuku ,  Takahiro Bito ,  Tenjiku Eiji ,  Takeshi Satoh ,  Ohkawa Takeshi

    发明人： Hitoshi Nagahama ,  Tatsuo Imafuku ,  Takahiro Bito ,  Tenjiku Eiji ,  Takeshi Satoh ,  Ohkawa Takeshi

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/097 ,  G03G13/00 ,  G03G15/00

    CPC分类号： G03G9/08704 ,  G03G9/081 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08786 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0904 ,  G03G9/09716 ,  G03G9/09725

    摘要： Provided is a developing toner for electrostatic latent images capable of coping with the size reduction of an image forming apparatus and decrease of the consumption amount, not shortening the working life of a photoreceptor, less causing paper jam, background fogging, etc., excellent in various characteristics required for the toner, and capable of forming images of good picture quality. The developing toner being used when images are formed to a recording material in an image forming apparatus comprising an image forming station, a recording material feeding station, an image fixing station and a controlling station, the developing toner for electrostatic latent images containing hydrophobic fluidizing particles deposited to the surface of coloring resin particles comprising a binder resin containing a polyester resin, a polyalkylene, a polyolefin dispersant and a non-oxidized polyethylene resin, and an inorganic pigment, and having time constant τ of from 100 to 350 msec.

    摘要翻译： 本发明提供一种用于静电潜像的显影调色剂，其能够应对图像形成装置的尺寸减小和消耗量的降低，而不会缩短感光体的使用寿命，较少造成卡纸，背景雾化等，优异的 调色剂所需的各种特性，并且能够形成良好图像质量的图像。 在包括图像形成站，记录材料馈送站，图像定影站和控制站的图像形成设备中，当将图像形成为记录材料时使用的显影调色剂，包含疏水性流化颗粒的静电潜像显影调色剂 沉积到包含含有聚酯树脂，聚亚烷基，聚烯烃分散剂和非氧化聚乙烯树脂的粘合剂树脂和无机颜料的着色树脂颗粒的表面，并且具有100至350毫秒的时间常数τt。

    Developing toner for electrostatic latent images, imaging forming method and image forming apparatus
    8.
    发明授权
    Developing toner for electrostatic latent images, imaging forming method and image forming apparatus 有权
    显影静电潜像用调色剂，成像方法和图像形成装置

    公开(公告)号：US07514193B2

    公开(公告)日：2009-04-07

    申请号：US11090001

    申请日：2005-03-28

    申请人： Hitoshi Nagahama ,  Tatsuo Imafuku ,  Takahiro Bito ,  Tenjiku Eiji ,  Takeshi Satoh ,  Ohkawa Takeshi

    发明人： Hitoshi Nagahama ,  Tatsuo Imafuku ,  Takahiro Bito ,  Tenjiku Eiji ,  Takeshi Satoh ,  Ohkawa Takeshi

    IPC分类号： G03G9/087

    CPC分类号： G03G9/08704 ,  G03G9/081 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08786 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0904 ,  G03G9/09716 ,  G03G9/09725

    摘要： Provided is a developing toner for electrostatic latent images capable of coping with the size reduction of an image forming apparatus and decrease of the consumption amount, not shortening the working life of a photoreceptor, less causing paper jam, background fogging, etc., excellent in various characteristics required for the toner, and capable of forming images of good picture quality. The developing toner being used when images are formed to a recording material in an image forming apparatus comprising an image forming station, a recording material feeding station, an image fixing station and a controlling station, the developing toner for electrostatic latent images containing hydrophobic fluidizing particles deposited to the surface of coloring resin particles comprising a binder resin containing a polyester resin, a polyalkylene, a polyolefin dispersant and a non-oxidized polyethylene resin, and an inorganic pigment, and having time constant τ of from 100 to 350 msec.

    摘要翻译： 本发明提供一种用于静电潜像的显影调色剂，其能够应对图像形成装置的尺寸减小和消耗量的降低，而不会缩短感光体的使用寿命，较少造成卡纸，背景雾化等，优异的 调色剂所需的各种特性，并且能够形成良好图像质量的图像。 在包括图像形成站，记录材料馈送站，图像定影站和控制站的图像形成设备中，当将图像形成为记录材料时使用的显影调色剂，包含疏水性流化颗粒的静电潜像显影调色剂 沉积到包含含有聚酯树脂，聚亚烷基，聚烯烃分散剂和非氧化聚乙烯树脂的粘合剂树脂和无机颜料的着色树脂颗粒的表面，并且具有100至350毫秒的时间常数τt。

    TONER, TWO-COMPONENT DEVELOPER AND IMAGE FORMATION DEVICE
    9.
    发明申请
    TONER, TWO-COMPONENT DEVELOPER AND IMAGE FORMATION DEVICE 有权
    调色剂，双组分显影剂和图像形成装置

    公开(公告)号：US20090035683A1

    公开(公告)日：2009-02-05

    申请号：US12184680

    申请日：2008-08-01

    申请人： Tatsuo IMAFUKU ,  Takahiro Bito ,  Takeshi Satoh

    发明人： Tatsuo IMAFUKU ,  Takahiro Bito ,  Takeshi Satoh

    IPC分类号： G03G9/08 ,  G03G9/083

    CPC分类号： G03G9/0821 ,  G03G9/0819 ,  G03G9/09708 ,  G03G9/1136

    摘要： A toner comprising a small-particle diameter external additive having a number average particle diameter of 7 to 20 nm, a large-particle diameter external additive having a number average particle diameter of 40 to 80 nm and a toner particle having a volume average particle diameter of 4 to 7 μm, wherein the large-particle diameter external additive is stuck to the surface of the toner particles in a semi-embedded state and has a rate of liberation of 0.1% by weight or less from the surface of the toner particle.

    摘要翻译： 一种调色剂，其包含数均粒径为7〜20nm的小粒径外用添加剂，数均粒径为40〜80nm的大粒径外用添加剂和具有体积平均粒径的调色剂颗粒 为4〜7μm，其中大颗粒直径的外部添加剂以半嵌入状态粘附到调色剂颗粒的表面，并且从调色剂颗粒的表面释放出0.1重量％以下的速率。