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    Resin-coated ferrite carrier for electrophotographic developer, its production method, and electrophotographic developer using the resin-coated ferrite carrier
    1.
    发明授权
    Resin-coated ferrite carrier for electrophotographic developer, its production method, and electrophotographic developer using the resin-coated ferrite carrier 有权
    用于电子照相显影剂的树脂涂覆铁氧体载体，其制备方法和使用树脂涂覆的铁氧体载体的电子照相显影剂

    公开(公告)号：US07521163B2

    公开(公告)日：2009-04-21

    申请号：US11272024

    申请日：2005-11-14

    申请人： Tetsuya Uemura ,  Toshio Honjo ,  Kanao Kayamoto

    发明人： Tetsuya Uemura ,  Toshio Honjo ,  Kanao Kayamoto

    IPC分类号： G03G9/113

    CPC分类号： G03G9/1135 ,  G03G9/1075 ,  G03G9/1134 ,  G03G9/1139

    摘要： A resin-coated ferrite carrier having a uniform resin coating and emitting no offensive odors, etc., its production method, and an electrophotographic developer which comprises the resin-coated ferrite carrier, is excellent in the charge stability and image quality stability over a long period, causes less fogging of image or carrier adhesion, is favorable in the image density and environmental dependency, and can fully respond to high-speed and full-color imaging, are provided. The resin-coated ferrite carrier for the electrophotographic developer is characterized in that the surface of ferrite particles is coated with a mixed resin of a tetrafluoroethylene-hexafluoropropylene copolymer or a tetrafluoroethylene-perfluoroalkylvinyl ether copolymer and a polyamideimide resin, and that the mixed resin contains a silicon oxide.

    摘要翻译： 具有均匀的树脂涂层并且不发出异味的树脂涂覆的铁氧体载体等，其制造方法和包含树脂涂覆的铁氧体载体的电子照相显影剂在长时间内电荷稳定性和图像质量稳定性优异 期间，导致图像或载体粘附的较少雾化，有利于图像密度和环境依赖性，并且可以对高速和全色成像进行完全响应。 用于电子照相显影剂的树脂涂覆的铁氧体载体的特征在于，铁氧体颗粒的表面涂覆有四氟乙烯 - 六氟丙烯共聚物或四氟乙烯 - 全氟烷基乙烯基醚共聚物和聚酰胺酰亚胺树脂的混合树脂，并且混合树脂含有 氧化硅。

    Carrier for electrophotographic developer, process for preparing the same and developer prepared by using said carrier
    4.
    发明授权
    Carrier for electrophotographic developer, process for preparing the same and developer prepared by using said carrier 失效
    用于电子照相显影剂的载体，其制备方法和通过使用所述载体制备的显影剂

    公开(公告)号：US5419994A

    公开(公告)日：1995-05-30

    申请号：US939989

    申请日：1992-09-03

    申请人： Toshio Honjo ,  Yuji Sato ,  Kanao Kayamoto ,  Masahiro Ogata

    发明人： Toshio Honjo ,  Yuji Sato ,  Kanao Kayamoto ,  Masahiro Ogata

    IPC分类号： G03G9/10 ,  G03G9/107

    CPC分类号： G03G9/10

    摘要： An iron carrier for an electrophotographic developer, the carrier having a mean particle diameter of 25 to 40 .mu.m, a magnetization of at least 160 emu/g at 3000 Oe, an apparent density of 3.0 to 4.2 g/cm.sup.3, a percentage sphericity of at least 80%, and a specific surface area of at least 350 cm.sup.2 /g as determined by an air permeation method; a process for preparing the carrier by a plasma method; and an electrophotographic developer comprising the carrier.

    摘要翻译： 用于电子照相显影剂的铁载体，该载体的平均粒径为25〜40μm，在3000Oe下的磁化强度至少为160emu / g，表观密度为3.0〜4.2g / cm 3，球形度的百分比 至少80％，和通过空气渗透法测定的至少350cm 2 / g的比表面积; 通过等离子体法制备载体的方法; 和包含载体的电子照相显影剂。

    Resin-coated ferrite carrier for electrophotographic developer, its production method, and electrophotographic developer using the resin-coated ferrite carrier
    5.
    发明授权
    Resin-coated ferrite carrier for electrophotographic developer, its production method, and electrophotographic developer using the resin-coated ferrite carrier 有权
    用于电子照相显影剂的树脂涂覆铁氧体载体，其制备方法和使用树脂涂覆的铁氧体载体的电子照相显影剂

    公开(公告)号：US07824833B2

    公开(公告)日：2010-11-02

    申请号：US12095362

    申请日：2006-11-30

    申请人： Kanao Kayamoto ,  Issei Shinmura ,  Toshio Honjo

    发明人： Kanao Kayamoto ,  Issei Shinmura ,  Toshio Honjo

    IPC分类号： G03G9/107

    CPC分类号： G03G9/1075 ,  G03G9/1131 ,  G03G9/1136

    摘要： A spherical resin-coated ferrite carrier for an electrophotographic developer which can maintain a stable resistance and chargeability, a favorable charge rising property because of an excellent fluidity, and has a suitable durability, its production method which is excellent in economic efficiency and production stability, and an electrophotographic developer using the resin-coated ferrite carrier, are provided. A resin-coated ferrite carrier for an electrophotographic developer which is a spherical resin-coated ferrite carrier, wherein a carrier core material thereof has an irregular surface to improve the adhesive strength to a resin coat, and wherein the irregularity of the surface takes a finely streaked wrinkle pattern, its production method, and an electrophotographic developer using the resin-coated ferrite carrier, are employed.

    摘要翻译： 用于电子照相显影剂的球形树脂涂覆的铁氧体载体，其可以保持稳定的电阻和带电性，由于流动性优异的电荷上升性，并且具有合适的耐久性，其经济效率和生产稳定性优良的制造方法， 和使用树脂涂覆的铁氧体载体的电子照相显影剂。 一种用于电子照相显影剂的树脂涂覆的铁氧体载体，其为球形树脂涂覆的铁氧体载体，其中载体芯材具有不规则表面以提高对树脂涂层的粘合强度，并且其中表面的不规则性需要精细 条纹褶皱图案，其制造方法和使用树脂涂覆的铁氧体载体的电子照相显影剂。

    Resin-coated carrier for electrophotographic developer and process for producing the same, and electrophotographic developer comprising the resin-coated carrier
    8.
    发明授权
    Resin-coated carrier for electrophotographic developer and process for producing the same, and electrophotographic developer comprising the resin-coated carrier 失效
    用于电子照相显影剂的树脂涂覆载体及其制备方法，以及包含树脂涂覆载体的电子照相显影剂

    公开(公告)号：US08092971B2

    公开(公告)日：2012-01-10

    申请号：US10584066

    申请日：2004-11-25

    申请人： Kanao Kayamoto ,  Hironori Hojo ,  Toshio Honjo

    发明人： Kanao Kayamoto ,  Hironori Hojo ,  Toshio Honjo

    IPC分类号： G03G9/113

    CPC分类号： G03G9/107 ,  G03G9/113

    摘要： An object of the present invention is to provide a resin-coated ferrite carrier comprising a carrier core material having a small particle size, a high sphericity and surface uniformity, and a low standard deviation, a process for producing the carrier, and an electrophotographic developer comprising the resin-coated ferrite carrier and having a high image quality and excellent durability. For achieving the above object, there is provided a resin-coated carrier for an electrophotographic developer characterized by comprising spherical ferrite particles having an average particle size of 20 to 50 μm, a surface uniformity of 90% or more, an average sphericity of 1 to 1.3 and a sphericity standard deviation of 0.15 or less, a process for producing the carrier, and an electrophotographic developer comprising the resin-coated carrier.

    摘要翻译： 本发明的目的是提供一种树脂涂覆的铁氧体载体，其包含具有小粒径，高球形度和表面均匀性以及低标准偏差的载体芯材料，制备载体的方法和电子照相显影剂 包括树脂涂覆的铁氧体载体，并且具有高图像质量和优异的耐久性。 为了实现上述目的，提供了一种用于电子照相显影剂的树脂涂覆载体，其特征在于包括平均粒径为20至50μm的球形铁氧体颗粒，90％以上的表面均匀性，平均球形度为1至 1.3，球形度标准偏差为0.15以下，制造载体的方法和包含树脂被覆载体的电子照相显影剂。

    Resin-coated carrier for electrophotographic developer and process for producing the same, and electrophotographic developer comprising the resin-coated carrier
    9.
    发明申请
    Resin-coated carrier for electrophotographic developer and process for producing the same, and electrophotographic developer comprising the resin-coated carrier 失效
    用于电子照相显影剂的树脂涂覆载体及其制备方法，以及包含树脂涂覆载体的电子照相显影剂

    公开(公告)号：US20070154833A1

    公开(公告)日：2007-07-05

    申请号：US10584066

    申请日：2004-11-25

    申请人： Kanao Kayamoto ,  Hironori Hojo ,  Toshio Honjo

    发明人： Kanao Kayamoto ,  Hironori Hojo ,  Toshio Honjo

    IPC分类号： G03G9/113

    CPC分类号： G03G9/107 ,  G03G9/113

    摘要： An object of the present invention is to provide a resin-coated ferrite carrier comprising a carrier core material having a small particle size, a high sphericity and surface uniformity, and a low standard deviation, a process for producing the carrier, and an electrophotographic developer comprising the resin-coated ferrite carrier and having a high image quality and excellent durability. For achieving the above object, there is provided a resin-coated carrier for an electrophotographic developer characterized by comprising spherical ferrite particles having an average particle size of 20 to 50 μm, a surface uniformity of 90% or more, an average sphericity of 1 to 1.3 and a sphericity standard deviation of 0.15 or less, a process for producing the carrier, and an electrophotographic developer comprising the resin-coated carrier.

    摘要翻译： 本发明的目的是提供一种树脂涂覆的铁氧体载体，其包含具有小粒径，高球形度和表面均匀性以及低标准偏差的载体芯材料，制备载体的方法和电子照相显影剂 包括树脂涂覆的铁氧体载体，并且具有高图像质量和优异的耐久性。 为了实现上述目的，提供了一种用于电子照相显影剂的树脂涂覆载体，其特征在于包括平均粒径为20至50μm的球形铁氧体颗粒，90％以上的表面均匀性，平均球形度为1至 1.3，球形度标准偏差为0.15以下，制造载体的方法和包含树脂被覆载体的电子照相显影剂。

    RESIN-COATED FERRITE CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, ITS PRODUCTION METHOD, AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE RESIN-COATED FERRITE CARRIER
    10.
    发明申请
    RESIN-COATED FERRITE CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, ITS PRODUCTION METHOD, AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE RESIN-COATED FERRITE CARRIER 有权
    用于电子显影开发商的树脂涂层铁素体载体，其生产方法和使用树脂涂覆的铁素体载体的电子显影开发

    公开(公告)号：US20090130587A1

    公开(公告)日：2009-05-21

    申请号：US12095362

    申请日：2006-11-30

    申请人： Kanao Kayamoto ,  Issei Shinmura ,  Toshio Honjo

    发明人： Kanao Kayamoto ,  Issei Shinmura ,  Toshio Honjo

    IPC分类号： G03G9/107 ,  G03G5/00

    CPC分类号： G03G9/1075 ,  G03G9/1131 ,  G03G9/1136

    摘要： A spherical resin-coated ferrite carrier for an electrophotographic developer which can maintain a stable resistance and chargeability, a favorable charge rising property because of an excellent fluidity, and has a suitable durability, its production method which is excellent in economic efficiency and production stability, and an electrophotographic developer using the resin-coated ferrite carrier, are provided. A resin-coated ferrite carrier for an electrophotographic developer which is a spherical resin-coated ferrite carrier, wherein a carrier core material thereof has an irregular surface to improve the adhesive strength to a resin coat, and wherein the irregularity of the surface takes a finely streaked wrinkle pattern, its production method, and an electrophotographic developer using the resin-coated ferrite carrier, are employed.

    摘要翻译： 用于电子照相显影剂的球形树脂涂覆的铁氧体载体，其可以保持稳定的电阻和带电性，由于流动性优异的电荷上升性，并且具有合适的耐久性，其经济效率和生产稳定性优良的制造方法， 和使用树脂涂覆的铁氧体载体的电子照相显影剂。 一种用于电子照相显影剂的树脂涂覆的铁氧体载体，其为球形树脂涂覆的铁氧体载体，其中载体芯材具有不规则表面以提高对树脂涂层的粘合强度，并且其中表面的不规则性需要精细 条纹褶皱图案，其制造方法和使用树脂涂覆的铁氧体载体的电子照相显影剂。