公开(公告)号：US08586276B2

公开(公告)日：2013-11-19

申请号：US12056904

申请日：2008-03-27

申请人： Akira Matsumoto ,  Taichi Yamada ,  Yosuke Tsurumi ,  Fusako Kiyono ,  Akihiro Iizuka ,  Fumiaki Mera ,  Hirotaka Matsuoka

发明人： Akira Matsumoto ,  Taichi Yamada ,  Yosuke Tsurumi ,  Fusako Kiyono ,  Akihiro Iizuka ,  Fumiaki Mera ,  Hirotaka Matsuoka

IPC分类号： G03G9/10 ,  G03G9/113

CPC分类号： G03G9/107 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/1135

摘要： A carrier for developing an electrostatic latent image includes carrier particles, and the carrier particles include magnetic particles and a coating layer coating the surfaces of the magnetic particles. The BET specific surface area of the magnetic particles is 0.1300 m2/g to 0.2500 m2/g, and the difference in BET specific surface areas obtained by subtracting the BET specific surface area of the magnetic particles from the BET specific surface area of the carrier particles is 0.0300 m2/g to 0.400 m2/g.

摘要翻译： 用于显影静电潜像的载体包括载体颗粒，载体颗粒包括磁性颗粒和涂覆磁性颗粒表面的涂层。 磁性粒子的BET比表面积为0.1300m 2 / g〜0.2500m 2 / g，通过从载体颗粒的BET比表面积减去磁性粒子的BET比表面积而得到的BET比表面积差 为0.0300m 2 / g〜0.400m 2 / g。

公开(公告)号：US08685603B2

公开(公告)日：2014-04-01

申请号：US12166743

申请日：2008-07-02

申请人： Fusako Kiyono ,  Taichi Yamada ,  Yosuke Tsurumi ,  Akira Matsumoto ,  Akihiro Iizuka

发明人： Fusako Kiyono ,  Taichi Yamada ,  Yosuke Tsurumi ,  Akira Matsumoto ,  Akihiro Iizuka

IPC分类号： G03G9/093

CPC分类号： G03G9/1133 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/1131 ,  G03G9/1135 ,  G03G9/1139

摘要： An electrostatic charge image developer includes a toner containing an external additive and a carrier comprising a resin-coated layer formed on a surface of a core material. The average shape factor SF1 of the toner is from 125 to 135, the number of particles having shape factor SF1 of less than 125 is from 5% to 30% by number with respect to the total number of toner particles, the number of particles having shape factor SF1 of greater than 135 is from 5% to 30% by number with respect to the total number of toner particles, the scratch line width in a scratch strength test of the resin used in the resin-coated layer is from 80 μm to 200 μm, and the scratch depth is from 60 μm to 150 μm.

摘要翻译： 静电荷图像显影剂包括含有外部添加剂的调色剂和包含在芯材表面上形成的树脂涂层的载体。 调色剂的平均形状因子SF1为125〜135，相对于调色剂总数，形状系数SF1小于125的颗粒数为5〜30％，颗粒数为 相对于调色剂颗粒总数，大于135的形状因子SF1为5〜30％，树脂被覆层的树脂的划痕强度试验中的划线宽度为80μm〜 200μm，划痕深度为60μm〜150μm。

公开(公告)号：US20090109448A1

公开(公告)日：2009-04-30

申请号：US12166975

申请日：2008-07-02

申请人： Fusako Kiyono ,  Taichi Yamada ,  Yosuke Tsurumi ,  Akira Matsumoto ,  Akihiro Iizuka ,  Tsuyoshi Murakami

发明人： Fusako Kiyono ,  Taichi Yamada ,  Yosuke Tsurumi ,  Akira Matsumoto ,  Akihiro Iizuka ,  Tsuyoshi Murakami

IPC分类号： G06F3/12 ,  G03G9/083

CPC分类号： G03G9/1075 ,  G03G9/10 ,  G03G9/1133 ,  G03G9/1135 ,  G03G9/1138 ,  G03G9/1139

摘要： An electrostatic charge image developing carrier includes: a magnetic particle; and a resin coating layer that covers a surface of the magnetic particle with a resin, the resin coating layer containing an acid having a cyclic diterpene structure and either of carbon black or nigrosine dispersed therein.

摘要翻译： 静电荷图像显影载体包括：磁性颗粒; 以及树脂覆盖层，其用树脂覆盖磁性粒子的表面，该树脂被覆层含有分布在其中的环状二萜结构的酸和分散在其中的炭黑或苯胺黑。

公开(公告)号：US08000641B2

公开(公告)日：2011-08-16

申请号：US12100055

申请日：2008-04-09

申请人： Taichi Yamada ,  Yosuke Tsurumi ,  Akira Matsumoto ,  Fusako Kiyono

发明人： Taichi Yamada ,  Yosuke Tsurumi ,  Akira Matsumoto ,  Fusako Kiyono

IPC分类号： G03G9/10 ,  G03G15/01

CPC分类号： G03G15/162 ,  G03G9/1075 ,  G03G9/113 ,  G03G9/1138 ,  G03G9/1139 ,  G03G15/0131 ,  G03G15/0194 ,  G03G2215/0132 ,  G03G2215/0607

摘要： The present invention provides an image forming apparatus comprising at least an image holding member, an charging unit, a latent image forming unit, a developing unit, an intermediate transfer belt, a primary transfer unit, a secondary transfer unit, a fixing unit, and a cleaning unit, wherein a surface hardness of a side, of the intermediate transfer belt, contacting with the image holding member being 10 to 30, a carrier in the developer having at least two resin-coated layers on a surface of a core material containing ferrite, and the core material having a surface roughness Sm of 2.0 μm or less, a surface roughness Ra of 0.1 μm or more, and an average a circularity degree of 0.975 to 1.000.

摘要翻译： 本发明提供一种图像形成装置，其至少包括图像保持部件，充电单元，潜像形成单元，显影单元，中间转印带，一次转印单元，二次转印单元，定影单元和 中间转印带与图像保持部件接触的侧面的表面硬度为10〜30的清洁单元，显影剂中的载体在芯材的表面上具有至少两个树脂被覆层，所述芯材含有 铁素体，表面粗糙度Sm为2.0μm以下的表面粗糙度Ra为0.1μm以上，平均圆形度为0.975〜1.000的芯材。

公开(公告)号：US08389192B2

公开(公告)日：2013-03-05

申请号：US12726617

申请日：2010-03-18

申请人： Fusako Kiyono ,  Takeshi Shoji ,  Yosuke Tsurumi ,  Akihiro Iizuka

发明人： Fusako Kiyono ,  Takeshi Shoji ,  Yosuke Tsurumi ,  Akihiro Iizuka

IPC分类号： G03G9/00

CPC分类号： G03G9/1133 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08797 ,  G03G9/1139 ,  G03G2215/0607

摘要： An electrophotographic carrier includes a magnetic core material and a resin layer that coats the magnetic core material, the resin layer comprising a resistance control agent and a polymer including a repeating unit derived from an alicyclic group-containing methacrylic ester, the resin layer including a monomer as a base material of the repeating unit in the polymer in an amount of from about 0.5% by weight to about 3.0% by weight relative to the total amount of the resin layer.

摘要翻译： 电子摄影载体包括磁芯材料和涂覆磁芯材料的树脂层，树脂层包括电阻控制剂和包含衍生自含脂环基的甲基丙烯酸酯的重复单元的聚合物，所述树脂层包含单体 作为聚合物中重复单元的基材，其量相对于树脂层的总量为约0.5重量％至约3.0重量％。

公开(公告)号：US08603716B2

公开(公告)日：2013-12-10

申请号：US12755690

申请日：2010-04-07

申请人： Takeshi Shoji ,  Akihiro Iizuka ,  Yosuke Tsurumi ,  Fusako Kiyono

发明人： Takeshi Shoji ,  Akihiro Iizuka ,  Yosuke Tsurumi ,  Fusako Kiyono

IPC分类号： G03G9/113

CPC分类号： G03G9/107 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1138 ,  G03G9/1139

摘要： An electrostatic image developing carrier includes a ferrite particle and a resin layer that coats the ferrite particle, wherein a magnesium element content of the ferrite particle is from about 3.0% by weight to about 20.0% by weight; wherein a manganese element content of the ferrite particle is from about 0.2% by weight to about 0.8% by weight; and wherein a content of toluene is more than about 100 ppm and not more than about 2,000 ppm.

摘要翻译： 静电图像显影载体包括铁氧体颗粒和涂覆铁氧体颗粒的树脂层，其中铁素体颗粒的镁元素含量为约3.0重量％至约20.0重量％; 其中所述铁氧体颗粒的锰元素含量为约0.2重量％至约0.8重量％; 并且其中甲苯的含量大于约100ppm且不大于约2,000ppm。

公开(公告)号：US20110045399A1

公开(公告)日：2011-02-24

申请号：US12755690

申请日：2010-04-07

申请人： Takeshi Shoji ,  Akihiro Iizuka ,  Yosuke Tsurumi ,  Fusako Kiyono

发明人： Takeshi Shoji ,  Akihiro Iizuka ,  Yosuke Tsurumi ,  Fusako Kiyono

IPC分类号： G03G9/00 ,  G03G13/20 ,  G03G21/18 ,  G03G15/08

CPC分类号： G03G9/107 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1138 ,  G03G9/1139

摘要： An electrostatic image developing carrier includes a ferrite particle and a resin layer that coats the ferrite particle, wherein a magnesium element content of the ferrite particle is from about 3.0% by weight to about 20.0% by weight; wherein a manganese element content of the ferrite particle is from about 0.2% by weight to about 0.8% by weight; and wherein a content of toluene is more than about 100 ppm and not more than about 2,000 ppm.

摘要翻译： 静电图像显影载体包括铁氧体颗粒和涂覆铁氧体颗粒的树脂层，其中铁素体颗粒的镁元素含量为约3.0重量％至约20.0重量％; 其中所述铁氧体颗粒的锰元素含量为约0.2重量％至约0.8重量％; 并且其中甲苯的含量大于约100ppm且不大于约2,000ppm。

公开(公告)号：US20110020747A1

公开(公告)日：2011-01-27

申请号：US12726617

申请日：2010-03-18

申请人： Fusako Kiyono ,  Takeshi Shoji ,  Yosuke Tsurumi ,  Akihiro Iizuka

发明人： Fusako Kiyono ,  Takeshi Shoji ,  Yosuke Tsurumi ,  Akihiro Iizuka

IPC分类号： G03G9/00 ,  G03G15/08

CPC分类号： G03G9/1133 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08797 ,  G03G9/1139 ,  G03G2215/0607

摘要： An electrophotographic carrier includes a magnetic core material and a resin layer that coats the magnetic core material, the resin layer comprising a resistance control agent and a polymer including a repeating unit derived from an alicyclic group-containing methacrylic ester, the resin layer including a monomer as a base material of the repeating unit in the polymer in an amount of from about 0.5% by weight to about 3.0% by weight relative to the total amount of the resin layer.

摘要翻译： 电子摄影载体包括磁芯材料和涂覆磁芯材料的树脂层，树脂层包括电阻控制剂和包含衍生自含脂环基的甲基丙烯酸酯的重复单元的聚合物，所述树脂层包含单体 作为聚合物中重复单元的基材，其量相对于树脂层的总量为约0.5重量％至约3.0重量％。

公开(公告)号：US07894751B2

公开(公告)日：2011-02-22

申请号：US12546356

申请日：2009-08-24

申请人： Fusako Kiyono ,  Yosuke Tsurumi ,  Yutaka Saito

发明人： Fusako Kiyono ,  Yosuke Tsurumi ,  Yutaka Saito

IPC分类号： G03G15/08

CPC分类号： G03G9/0819 ,  G03G9/081 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08797

摘要： A container for storing a toner includes: an electrostatic latent image developing toner that contains: a binder resin containing a polyester resin; a coloring agent; and a release agent, and that has a volume average particle size of about 4 to about 8 μm and an average degree of circularity of about 0.94 to about 0.99; and a toner container main body that stores the electrostatic latent image developing toner, the toner container main body including a material containing at least one of polyethylene terephthalate and polybutylene terephthalate.

摘要翻译： 用于储存调色剂的容器包括：静电潜像显影调色剂，其包含：含有聚酯树脂的粘合剂树脂; 着色剂; 和脱模剂，其体积平均粒径为约4至约8μm，平均圆形度为约0.94至约0.99; 以及调色剂容器主体，其存储静电潜像显影调色剂，所述调色剂容器主体包括含有聚对苯二甲酸乙二醇酯和聚对苯二甲酸丁二醇酯中的至少一种的材料。

公开(公告)号：US07745087B2

公开(公告)日：2010-06-29

申请号：US11905283

申请日：2007-09-28

申请人： Yosuke Tsurumi ,  Akihiro Iizuka ,  Tsuyoshi Murakami

发明人： Yosuke Tsurumi ,  Akihiro Iizuka ,  Tsuyoshi Murakami

IPC分类号： G03G9/093

CPC分类号： G03G9/1132 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G2215/0132 ,  G03G2215/0609

摘要： An electrostatic image developer contains a toner and a carrier having a resin coating layer formed on the surface of a core material containing a ferrite component, wherein a ratio R1/R2 is from 0.88 to 0.92 where R1 is the resistance value (Ω) of the developer having a toner concentration of 2 mass % in a state formed into a magnetic brush, at an applied voltage of 104 V/cm, and R2 is the resistance value (Ω) of the developer having a toner concentration of 12 mass % in a state formed into a magnetic brush, at an applied voltage of 104 V/cm.

摘要翻译： 静电图像显影剂含有调色剂和载体，该树脂涂层形成在含有铁素体组分的芯材的表面上，其中R1 / R2的比值为0.88至0.92，其中R1是电阻值（＆OHgr） 显影剂在形成磁刷的状态下的调色剂浓度为2质量％，施加电压为104V / cm，R2为调色剂浓度为12质量％的显影剂的电阻值（＆amp; OHgr） 在形成为磁刷的状态下，以施加的电压为104V / cm。