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：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。

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：US20050164109A1

公开(公告)日：2005-07-28

申请号：US10935134

申请日：2004-09-08

申请人： Akihiro Iizuka ,  Atsuhiko Eguchi ,  Masahiro Okita ,  Yasuhiro Oya

发明人： Akihiro Iizuka ,  Atsuhiko Eguchi ,  Masahiro Okita ,  Yasuhiro Oya

IPC分类号： G03G9/08 ,  G03G9/097

CPC分类号： G03G9/09733 ,  G03G9/0827 ,  G03G9/097

摘要： The invention provides a toner for developing electrostatic charged images comprising toner mother particles containing a binder resin and a colorant, and an external additive, wherein: the average of shape factors SF1 of the toner mother particles represented by the following Formula (1) is 140 or less; the external additive contains higher alcohol particles having a volume-average particle diameter of 1 to 12 μm; and the content of the higher alcohol particles having a diameter equal to or less than the volume-average particle diameter of the toner mother particles is in a range of 0.15 to 2.5 parts by weight with respect to 100 parts by weight of the toner mother particles. In addition, the invention provides a developer for developing electrostatic charged images comprising the toner. Further, the invention provides an image forming method using the toner.

摘要翻译： 本发明提供一种用于显影静电荷图像的调色剂，其包含含有粘合剂树脂和着色剂的调色剂母粒子和外部添加剂，其中：由下式（1）表示的调色剂母粒子的形状因子SF1的平均值为140 或更少; 外部添加剂含有体积平均粒径为1〜12μm的高级醇粒子; 相对于100重量份的调色剂母粒子，直径等于或小于调色剂母粒的体积平均粒径的高级醇粒子的含量在0.15〜2.5重量份的范围内 。 此外，本发明提供了一种显影剂，用于显影包含调色剂的静电荷图像。 此外，本发明提供了一种使用调色剂的成像方法。

公开(公告)号：US06383704B1

公开(公告)日：2002-05-07

申请号：US09723241

申请日：2000-11-28

申请人： Rieko Kataoka ,  Susumu Yoshino ,  Akihiro Iizuka ,  Koutarou Yoshihara ,  Haruhide Ishida ,  Tetsuya Taguchi ,  Fumiaki Mera ,  Hiroshi Takano ,  Yasuhiro Oya ,  Michio Take

发明人： Rieko Kataoka ,  Susumu Yoshino ,  Akihiro Iizuka ,  Koutarou Yoshihara ,  Haruhide Ishida ,  Tetsuya Taguchi ,  Fumiaki Mera ,  Hiroshi Takano ,  Yasuhiro Oya ,  Michio Take

IPC分类号： G03G910

CPC分类号： G03G9/1075 ,  G03G9/08782 ,  G03G9/09708 ,  G03G9/09716

摘要： A full color electrophotographic toner including toner particles containing at least a binder resin, a colorant and a wax, and external additives, at least one of the external additives being rutile titanium oxide having a volume resistivity of 1×1014 to 1×1018 &OHgr;cm, and a dispersion absolute deviation a of rutile titanium oxide being 0.17 or less, and a full color electrophotographic developer and an image forming method using the same are provided. In the full color electrophotographic toner, the full color electrophotographic developer and the image forming method of the invention, a retransfer phenomenon of the transferred toner can be prevented, a chargeability and a transferability are not problematic at all, a charging amount of the toner in long-term use can be rendered appropriate and stable, and a fluidity is also excellent.

摘要翻译： 包含至少含有粘合剂树脂，着色剂和蜡的调色剂颗粒和外部添加剂的全色电子照相调色剂，至少一种外部添加剂是体积电阻率为1×10 14至1×10 18 OMEGA cm的金红石型氧化钛，以及分散绝对 金红石型氧化钛的偏差为0.17以下，全色电子照相显影剂和使用其的图像形成方法。 在全色电子照相调色剂，全色电子照相显影剂和本发明的成像方法中，可以防止转印的调色剂的再转印现象，带电性和转印性完全没有问题，调色剂的带电量 长期使用可以适当和稳定，流动性也很好。

公开(公告)号：US6101358A

公开(公告)日：2000-08-08

申请号：US418826

申请日：1999-10-15

申请人： Takashi Imai ,  Akihiro Iizuka ,  Yoshifumi Iida ,  Hiroshi Nakazawa ,  Masanori Ichimura

发明人： Takashi Imai ,  Akihiro Iizuka ,  Yoshifumi Iida ,  Hiroshi Nakazawa ,  Masanori Ichimura

IPC分类号： G03G15/09 ,  G03G9/08 ,  G03G9/10 ,  G03G9/107 ,  G03G13/09 ,  G03G15/08

CPC分类号： G03G9/107 ,  G03G13/09 ,  G03G9/08 ,  G03G9/10

摘要： Provided is an image-forming method including a step of forming a layer of a developer on a surface of a developer support member disposed facing a latent image support member, a developing step of developing an electrostatic latent image on the latent image support member using the layer of the developer formed to obtain a toner image, a transferring step of transferring the toner image onto a transfer material and a fixing step of fixing the transferred toner image, wherein the developer support member has therein a development magnetic pole in which a magnetic force of a main pole is 100 mT or more, said developer having a toner and a carrier which has a volume average particle diameter of 50 .mu.m or less, and image formation method is conducted at a process speed of 200 mm/sec or more.In the image-forming method of the invention, high-quality images free from blurring in a half-tone portion adjacent to a solid image can be formed in a high-speed image-forming process using the two-component developer of a small particle diameter without migration of the carrier into the latent image.

摘要翻译： 提供了一种图像形成方法，包括在面向潜像支撑部件设置的显影剂支撑部件的表面上形成显影剂层的步骤，使用该显影步骤使潜像支撑部件上的静电潜像显影 形成以获得调色剂图像的显影剂层，将调色剂图像转印到转印材料上的转印步骤和固定转印的调色剂图像的定影步骤，其中显影剂支撑构件中具有显影磁极，其中磁力 所述显影剂具有体积平均粒径为50μm以下的调色剂和载体，以200mm / sec以上的处理速度进行图像形成方法。 在本发明的图像形成方法中，可以在使用小粒子的双组分显影剂的高速图像形成处理中形成没有与实心图像相邻的半色调部分中的模糊的高质量图像 直径，而不会使载体迁移到潜像中。

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：US20100330492A1

公开(公告)日：2010-12-30

申请号：US12622073

申请日：2009-11-19

申请人： Yosuke TSURUMI ,  Akihiro IIZUKA ,  Fusako KIYONO ,  Takeshi SHOJI

发明人： Yosuke TSURUMI ,  Akihiro IIZUKA ,  Fusako KIYONO ,  Takeshi SHOJI

IPC分类号： G03G9/00 ,  G03G15/08

CPC分类号： G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1133

摘要： The invention provides a carrier for electrostatic development, including ferrite particles and a coating layer including a resin having a cycloalkyl group, the ferrite particles including strontium in an amount of from about 0.1% by weight to about 1.0% by weight and having a BET specific surface area of from about 0.13 m2/g to about 0.23 m2/g.

摘要翻译： 本发明提供一种用于静电显影的载体，包括铁氧体颗粒和包含具有环烷基的树脂的涂层，所述铁氧体颗粒包括约0.1重量％至约1.0重量％的量的锶，并具有BET特异性 表面积为约0.13m2 / g至约0.23m2 / g。