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：US20070020552A1

公开(公告)日：2007-01-25

申请号：US11313208

申请日：2005-12-21

申请人： Akira Matsumoto ,  Akihiro Iizuka ,  Hiroyuki Fukuda ,  Fusako Kiyono ,  Toshiyuki Yano

发明人： Akira Matsumoto ,  Akihiro Iizuka ,  Hiroyuki Fukuda ,  Fusako Kiyono ,  Toshiyuki Yano

IPC分类号： G03G9/113

CPC分类号： G03G9/0833 ,  G03G9/0827 ,  G03G9/09708 ,  G03G9/1075 ,  G03G9/1134 ,  G03G2215/0607

摘要： The present invention provides a carrier for electrostatic image development, and a developer, an image formation method and an image formation apparatus using the carrier. The carrier is carrier particles. When the carrier particles each have a coating layer on a magnetic particle, the carrier has a total energy amount of 1500 to 3000 mJ. When the carrier particles each have a coating layer on a magnetic powder-dispersed particle, the carrier has a total energy amount of 1000 to 1500 mJ. The total energy amount is measured with a powder rheometer at a tip end speed of a rotor of 100 mm/s and a helix angle of the rotor of −5°. The total energy amount is a value of a portion of the carrier in a measurement container which portion is contained in the region between the packed surface of the carrier and a surface disposed under the packed surface by 70 mm.

摘要翻译： 本发明提供一种用于静电图像显影的载体，以及使用该载体的显影剂，图像形成方法和图像形成装置。 载体是载体颗粒。 当载体颗粒各自在磁性颗粒上具有涂层时，载体的总能量为1500-3000mJ。 当载体颗粒各自在磁粉分散颗粒上具有涂层时，载体的总能量为1000至1500mJ。 总能量用粉末流变仪以100mm / s的转子的尖端速度和-5°的转子的螺旋角测量。 总能量是测量容器中的载体的一部分的值，该部分包含在载体的填充表面和设置在填充表面下的表面之间的区域中为70mm。

公开(公告)号：US07939234B2

公开(公告)日：2011-05-10

申请号：US11806223

申请日：2007-05-30

申请人： Akira Matsumoto ,  Akihiro Iizuka ,  Fusako Kiyono

发明人： Akira Matsumoto ,  Akihiro Iizuka ,  Fusako Kiyono

IPC分类号： G03G9/00

CPC分类号： G03G15/09 ,  G03G9/09708 ,  G03G9/107 ,  G03G9/1132 ,  G03G9/1139 ,  G03G15/095 ,  G03G2215/0609

摘要： An image forming apparatus, including a latent image-holding member, a developing unit, a transfer unit, a cleaning unit, and a recycling unit, wherein the developer includes a toner having an external-additive adhesiveness index SA in the range of approximately 50% to approximately 95% and: a carrier containing magnetic particles and a coating layer coating the surface of the magnetic particles and having a total energy of approximately 1,420 to approximately 2,920 mJ; or a carrier containing magnetic powder-dispersed particles and a coating layer coating the surface of the magnetic powder-dispersed particles and having a total energy of, approximately 890 to approximately 1,390 mJ.

摘要翻译： 一种图像形成装置，包括潜像保持构件，显影单元，转印单元，清洁单元和再循环单元，其中显影剂包括具有约50的范围内的外部添加剂粘合指数SA的调色剂 ％至约95％，和：含有磁性颗粒的载体和涂覆磁性颗粒表面的涂层，其总能量约为1,420至约2920mJ; 或包含磁粉分散颗粒的载体和涂覆磁粉分散颗粒表面的涂层，其总能量约为890至约1390mJ。

公开(公告)号：US20080081278A1

公开(公告)日：2008-04-03

申请号：US11806223

申请日：2007-05-30

申请人： Akira Matsumoto ,  Akihiro Iizuka ,  Fusako Kiyono

发明人： Akira Matsumoto ,  Akihiro Iizuka ,  Fusako Kiyono

IPC分类号： G03G15/09 ,  G03G9/113

CPC分类号： G03G15/09 ,  G03G9/09708 ,  G03G9/107 ,  G03G9/1132 ,  G03G9/1139 ,  G03G15/095 ,  G03G2215/0609

摘要： An image forming apparatus, including a latent image-holding member, a developing unit, a transfer unit, a cleaning unit, and a recycling unit, wherein the developer includes a toner having an external-additive adhesiveness index SA in the range of approximately 50% to approximately 95% and: a carrier containing magnetic particles and a coating layer coating the surface of the magnetic particles and having a total energy of approximately 1,420 to approximately 2,920 mJ; or a carrier containing magnetic powder-dispersed particles and a coating layer coating the surface of the magnetic powder-dispersed particles and having a total energy of, approximately 890 to approximately 1,390 mJ.

摘要翻译： 一种图像形成装置，包括潜像保持构件，显影单元，转印单元，清洁单元和再循环单元，其中显影剂包括具有约50的范围内的外部添加剂粘合指数SA的调色剂 ％至约95％，和：含有磁性颗粒的载体和涂覆磁性颗粒表面的涂层，其总能量约为1,420至约2920mJ; 或包含磁粉分散颗粒的载体和涂覆磁粉分散颗粒表面的涂层，其总能量约为890至约1390mJ。

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：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：US20080056769A1

公开(公告)日：2008-03-06

申请号：US11730899

申请日：2007-04-04

申请人： Akihiro Iizuka ,  Fusako Kiyono ,  Tsuyoshi Murakami

发明人： Akihiro Iizuka ,  Fusako Kiyono ,  Tsuyoshi Murakami

IPC分类号： G03G9/00 ,  G03G15/08

CPC分类号： G03G15/0818 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1133 ,  G03G9/1139

摘要： An electrostatic image developing carrier including at least a core material and a coating resin layer which coats the surface of the core material, the resin layer comprising a thermoplastic resin having an alicyclic group, a thermal reduction in accordance with the TGA method being in the range of 0.5 weight % to 5 weight % of the whole of the carrier in the range of 100° C. to 400° C., and further an endothermic quantity of the whole of the carrier in accordance with the DTA method is in the range of 7 mJ/g to 40 mJ/g in the range of 100° C. to 400° C.

摘要翻译： 一种静电显影载体，其至少包括芯材和涂覆在芯材表面的涂层树脂层，所述树脂层包含具有脂环族基团的热塑性树脂，根据TGA方法的热还原范围为 为100〜400℃范围的全部载体的0.5〜5重量％，进一步根据DTA法的整个载体的吸热量在 在100℃至400℃的范围内为7mJ / g至40mJ / g。

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：US08512927B2

公开(公告)日：2013-08-20

申请号：US11730899

申请日：2007-04-04

申请人： Akihiro Iizuka ,  Fusako Kiyono ,  Tsuyoshi Murakami

发明人： Akihiro Iizuka ,  Fusako Kiyono ,  Tsuyoshi Murakami

IPC分类号： G03G9/00

CPC分类号： G03G15/0818 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1133 ,  G03G9/1139

摘要： An electrostatic image developing carrier including at least a core material and a coating resin layer which coats the surface of the core material, the resin layer comprising a thermoplastic resin having an alicyclic group, a thermal reduction in accordance with the TGA method being in the range of 0.5 weight % to 5 weight % of the whole of the carrier in the range of 100° C. to 400° C., and further an endothermic quantity of the whole of the carrier in accordance with the DTA method is in the range of 7 mJ/g to 40 mJ/g in the range of 100° C. to 400° C.

摘要翻译： 一种静电显影载体，其至少包括芯材和涂覆在芯材表面的涂层树脂层，所述树脂层包含具有脂环族基团的热塑性树脂，根据TGA方法的热还原范围为 为100〜400℃范围的全部载体的0.5〜5重量％，进一步根据DTA法的整个载体的吸热量在 在100℃至400℃的范围内为7mJ / g至40mJ / g。