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1. 发明申请

US20070141502A1 Ferrite carrier core material for electrophotography, ferrite carrier for electrophotography and methods for producing them, and electrophotographic developer using the ferrite carrier 审中-公开
标题翻译：用于电子照相的铁氧体载体芯材料，用于电子照相的铁氧体载体及其制备方法，以及使用该铁氧体载体的电子照相显影剂
公开(公告)号：US20070141502A1
公开(公告)日：2007-06-21
申请号：US11446594
申请日：2006-06-05
申请人： Koji Aga , Takeshi Naito , Tetsuya Igarashi , Toshio Honjo
发明人： Koji Aga , Takeshi Naito , Tetsuya Igarashi , Toshio Honjo
IPC分类号： G03G9/113
CPC分类号： G03G9/107 , G03G9/1075 , G03G9/1136 , G03G9/1139
摘要： A ferrite carrier core material for electrophotography having a homogeneous composition, a certain surface property, a favorable fluidity, a high magnetization and a low resistance, and a ferrite carrier for electrophotography methods for producing them, and an electrophotographic developer using the ferrite carrier-core material, which exhibits a fast charge rising and a stable charge quantity with time, are provided. A ferrite carrier core material for electrophotography whose surface is divided by grooves or streaks into 2 to 50 regions per 10 μm and which has a manganese ferrite as a main component, and a method for producing the ferrite carrier core material for electrophotography using an Fe—Mn composite oxide as the raw material, and a method for producing a ferrite carrier for electrophotography are employed.
摘要翻译：用于电子照相的铁素体载体芯材料具有均匀的组成，一定的表面性质，良好的流动性，高磁化强度和低电阻，以及用于制备它们的电子照相方法的铁氧体载体，以及使用铁氧体载体芯的电子照相显影剂提供了表现出快速充电和随时间稳定的电荷量的材料。一种用于电子照相的铁氧体载体芯材料，其表面被槽或条纹划分成每10个月2至50个区域，并且以铁氧体为主要成分的铁电体载体芯材，以及制备用于电子照相的铁氧体载体芯材的方法， Mn复合氧化物为原料，采用电子照相用铁氧体载体的制造方法。

2. 发明授权

US08628905B2 Ferrite core material for resin-filled type carrier, resin-filled type carrier, and electrophotographic developer using the carrier 有权
标题翻译：用于树脂填充型载体的铁氧体芯材料，树脂填充型载体和使用载体的电子照相显影剂
公开(公告)号：US08628905B2
公开(公告)日：2014-01-14
申请号：US11443433
申请日：2006-05-31
申请人： Hiromichi Kobayashi , Tsuyoshi Itagoshi , Tomoyuki Suwa , Toshio Honjo
发明人： Hiromichi Kobayashi , Tsuyoshi Itagoshi , Tomoyuki Suwa , Toshio Honjo
IPC分类号： G03G9/113
CPC分类号： G03G9/1131 , G03G9/0833 , G03G9/0835 , G03G9/0836 , G03G9/0837 , G03G9/0838 , G03G9/0839 , G03G9/1136 , G03G9/1137
摘要： A ferrite core material for a resin-filled type carrier, and a resin-filled type carrier which is used as an electrophotographic developer by mixing a toner, sufficiently secure the image density, have no carrier adhesion and can maintain high-quality images over a long period, and an electrophotographic developer using the carrier, are provided. A ferrite core material for a resin-filled type carrier characterized in a void fraction of 10 to 60%, a resin-filled type carrier filled in the carrier core material with a resin, and an electrophotographic developer composed of the resin-filled type carrier and a toner, are provided.
摘要翻译：用于树脂填充型载体的铁氧体芯材料和通过混合调色剂用作电子照相显影剂的树脂填充型载体，足以确保图像浓度，不具有载体粘附性，并且可以保持高质量的图像并且提供使用该载体的电子照相显影剂。一种用于树脂填充型载体的铁氧体芯材料，其特征在于空隙率为10至60％，填充有载体芯材料的树脂填充型载体和树脂，以及由树脂填充型载体和调色剂。

3. 发明授权

US5965317A Regeneration of carrier and electrophotographic developer containing regenerated carrier 有权
标题翻译：包含再生载体的载体和电子照相显影剂的再生
公开(公告)号：US5965317A
公开(公告)日：1999-10-12
申请号：US225465
申请日：1999-01-06
申请人： Yuji Sato , Tsuyoshi Itagoshi , Toshio Honjo
发明人： Yuji Sato , Tsuyoshi Itagoshi , Toshio Honjo
IPC分类号： G03G9/10 , G03G9/113
CPC分类号： G03G9/10 , G03G9/1136
摘要： A method for regenerating a carrier coated with a silicone resin or a resin containing a silane coupling agent in an electrophotographic developer comprising the carrier and a toner, which comprises separating the developer into the carrier and the toner, immersing the separated carrier in an aqueous alkali solution, and stirring the mixture to remove the toner component adhered to the carrier surface and the coating resin.
摘要翻译：一种用于在包含载体的电子照相显影剂和调色剂中再生涂覆有硅树脂或含有硅烷偶联剂的树脂的载体的方法，其包括将显影剂分离成载体和调色剂，将分离的载体浸入碱水溶液中溶液，并搅拌混合物以除去附着在载体表面和涂料树脂上的调色剂组分。

4. 发明申请

US20060003248A1 Ferrite carrier for electrophotographic developer and method for preparing the same, and electrophotographic developer using the same 有权
标题翻译：用于电子照相显影剂的铁氧体载体及其制备方法和使用其的电子照相显影剂
公开(公告)号：US20060003248A1
公开(公告)日：2006-01-05
申请号：US11167293
申请日：2005-06-28
申请人： Hiromichi Kobayashi , Kanao Kayamoto , Tadashi Harayama , Issei Shinmura , Toshio Honjo
发明人： Hiromichi Kobayashi , Kanao Kayamoto , Tadashi Harayama , Issei Shinmura , Toshio Honjo
IPC分类号： G03G9/107
CPC分类号： G03G9/1075 , G03G9/107 , G03G9/1136
摘要： A ferrite carrier for the electrophotographic developer containing 40 to 500 ppm of zirconium; a method for preparing a ferrite carrier for the electrophotographic developer, comprising the steps for weighing, mixing, and pulverizing ferrite raw materials, and for granulating, drying, and firing the obtained slurry; wherein a zirconium raw material is added so that the zirconium content after firing becomes 40 to 500 ppm; and an electrophotographic developer using the ferrite carrier.
摘要翻译：用于含有40-500ppm锆的电子照相显影剂的铁氧体载体; 一种制备电子照相显影剂的铁氧体载体的方法，包括对铁素体原料进行称重，混合和粉碎并制粒，干燥和烧制所得浆料的步骤; 其中添加锆原料，使得烧成后的锆含量为40〜500ppm; 和使用该铁氧体载体的电子照相显影剂。

5. 发明授权

US5419994A Carrier for electrophotographic developer, process for preparing the same and developer prepared by using said carrier 失效
标题翻译：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。

6. 发明授权

US5204204A Carrier for developing electrostatic latent image 失效
标题翻译：用于显影静电潜像的载体
公开(公告)号：US5204204A
公开(公告)日：1993-04-20
申请号：US799129
申请日：1991-11-27
申请人： Yuji Shintani , Etsuaki Urano , Osamu Doi , Shinobu Nakasawa , Ichiro Demizu , Miyoko Ito , Kazuhiro Itadaki , Nobutaka Torii , Yukio Tanigami , Toshio Honjo , Yuji Sato , Toshiyuki Fukumoto
发明人： Yuji Shintani , Etsuaki Urano , Osamu Doi , Shinobu Nakasawa , Ichiro Demizu , Miyoko Ito , Kazuhiro Itadaki , Nobutaka Torii , Yukio Tanigami , Toshio Honjo , Yuji Sato , Toshiyuki Fukumoto
IPC分类号： G03G9/10 , G03G9/113
CPC分类号： G03G9/1137 , G03G9/10 , G03G9/113 , G03G9/1131
摘要： This invention relates to a carrier for developing electrostatic latent images comprising;carrier core particles having specified physical properties such as mean particle size, a bulk density, ratio of small particles, surface area index and the like, andresin-coating layers formed of specified components at specified content by a sintering process so that the layer resin may have specified physical properties such as ratio of integrated intensity and the like.
摘要翻译：本发明涉及一种用于静电潜像显影的载体，包括：具有特定物理性质的载体芯颗粒，例如平均粒度，体积密度，小颗粒比例，表面积指数等，以及通过烧结工艺在指定含量下由特定组分形成的树脂涂层，使得层树脂可以具有规定的物理性质，例如积分强度比等。

7. 发明授权

US4977054A Developer for electrostatic image comprising coated carrier 失效
标题翻译：包含涂层载体的静电图像显影剂
公开(公告)号：US4977054A
公开(公告)日：1990-12-11
申请号：US375497
申请日：1989-07-05
申请人： Toshio Honjo , Yuji Sato , Yoshihiro Fukushima , Masayoshi Nawa , Shinichiro Yasuda
发明人： Toshio Honjo , Yuji Sato , Yoshihiro Fukushima , Masayoshi Nawa , Shinichiro Yasuda
IPC分类号： G03G9/087 , G03G9/097 , G03G9/107 , G03G9/113
CPC分类号： G03G9/1075 , G03G9/1136 , Y10S430/105
摘要： A developer for electrostatic photography comprises toner and carrier coated with a composition comprising a silicone resin having (II) and (II') and at least one compound represented by following formula (III), (IV) or (V): ##STR1##

8. 发明授权

US08092971B2 Resin-coated carrier for electrophotographic developer and process for producing the same, and electrophotographic developer comprising the resin-coated carrier 失效
标题翻译：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。

9. 发明授权

US07521163B2 Resin-coated ferrite carrier for electrophotographic developer, its production method, and electrophotographic developer using the resin-coated ferrite carrier 有权
标题翻译：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。

10. 发明申请

US20070154833A1 Resin-coated carrier for electrophotographic developer and process for producing the same, and electrophotographic developer comprising the resin-coated carrier 失效
标题翻译：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。

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