公开(公告)号：US08597866B2

公开(公告)日：2013-12-03

申请号：US12558074

申请日：2009-09-11

Applicant: Sakon Takahashi ,  Norihito Fukushima ,  Shunsuke Nozaki ,  Michio Take

Inventor： Sakon Takahashi ,  Norihito Fukushima ,  Shunsuke Nozaki ,  Michio Take

IPC: G03G9/113

CPC classification number: G03G9/1131 ,  G03G9/1075 ,  G03G9/1137 ,  G03G9/1139

Abstract: A method of producing a carrier for electrophotography includes: covering a surface of a core particle with a coating layer including resin particles and a crosslinking resin in an uncrosslinked state present in spaces between the resin particles; and applying a mechanical impact from the outer surface of the coating layer before crosslinking of the crosslinking resin.

Abstract translation: 一种电子照相用载体的制造方法，其特征在于，在树脂粒子间存在的未交联状态下，用包含树脂粒子和交联树脂的被覆层覆盖芯粒子的表面， 并在交联树脂交联之前从涂层的外表面施加机械冲击。

公开(公告)号：US20110229811A1

公开(公告)日：2011-09-22

申请号：US12852835

申请日：2010-08-09

Applicant: Yutaka SAITO ,  Michio Take ,  Yoshifumi Iida ,  Sakon Takahashi ,  Motoko Sakai ,  Katsuyuki Kitajima

Inventor： Yutaka SAITO ,  Michio Take ,  Yoshifumi Iida ,  Sakon Takahashi ,  Motoko Sakai ,  Katsuyuki Kitajima

IPC: G03G9/00 ,  G03G15/08 ,  G03G21/16

CPC classification number: G03G9/0827 ,  G03G9/0825 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/097 ,  G03G9/09716 ,  G03G9/09725 ,  G03G2215/0617

Abstract: The invention provides a toner for developing an electrostatic image including toner particles having a shape factor SF1 of 110 or more and including a binder resin, and particles of an external additive that adhere to the toner particles, wherein the particles of the external additive including first particles, and second particles which are adhered to the first particles and have a primary particle size of 0.2 times to 0.5 times as large as that of the first particles, and in an image obtained by observing the particles of the external additive with a microscope, when the projection surface area of the first particle is defined as S1 and the total of the projection surface areas of the second particles which are not hidden by the first particle is defined as S2, S2 being from 0.1 times to 0.5 times as large as S1.

Abstract translation: 本发明提供了一种用于显影静电图像的调色剂，其包括形状系数SF1为110或更大的调色剂颗粒，并且包括粘合剂树脂，以及附着在调色剂颗粒上的外部添加剂颗粒，其中外部添加剂的颗粒包括第一 颗粒和第二颗粒，其粘附到第一颗粒上并且具有一次粒径为第一颗粒的一次粒径的0.2倍至0.5倍，并且在通过用显微镜观察外部添加剂的颗粒而获得的图像中， 当第一颗粒的投影表面积被定义为S1，并且未被第一颗粒隐藏的第二颗粒的​​投影表面积的总和定义为S2时，S2为S1的0.1倍至0.5倍 。

公开(公告)号：US20100233615A1

公开(公告)日：2010-09-16

申请号：US12558074

申请日：2009-09-11

Applicant: Sakon TAKAHASHI ,  Norihito FUKUSHIMA ,  Shunsuke NOZAKI ,  Michio TAKE

Inventor： Sakon TAKAHASHI ,  Norihito FUKUSHIMA ,  Shunsuke NOZAKI ,  Michio TAKE

IPC: G03G5/00

CPC classification number: G03G9/1131 ,  G03G9/1075 ,  G03G9/1137 ,  G03G9/1139

Abstract: A method of producing a carrier for electrophotography includes: covering a surface of a core particle with a coating layer including resin particles and a crosslinking resin in an uncrosslinked state present in spaces between the resin particles; and applying a mechanical impact from the outer surface of the coating layer before crosslinking of the crosslinking resin.

Abstract translation: 一种电子照相用载体的制造方法，其特征在于，在树脂粒子间存在的未交联状态下，用包含树脂粒子和交联树脂的被覆层覆盖芯粒子的表面， 并在交联树脂交联之前从涂层的外表面施加机械冲击。

公开(公告)号：US20090233211A1

公开(公告)日：2009-09-17

申请号：US12260684

申请日：2008-10-29

Applicant: Sakon TAKAHASHI ,  Daisuke ISHIZUKA ,  Michio TAKE ,  Seijiro ISHIMARU ,  Chiaki SUZUKI

Inventor： Sakon TAKAHASHI ,  Daisuke ISHIZUKA ,  Michio TAKE ,  Seijiro ISHIMARU ,  Chiaki SUZUKI

IPC: G03G9/087 ,  G03G13/20 ,  G03G15/08

CPC classification number: G03G9/08755 ,  G03G9/0823 ,  G03G9/08782 ,  G03G9/08786 ,  G03G9/1136

Abstract: A positively chargeable two-component developer, including at least a toner and a carrier, wherein the toner contains a binder resin, a colorant, a wax, and a charge control agent, the binder resin contains at least a polyester resin and an addition polymerization resin grafted with a polyolefin, the wax and the addition polymerization resin grafted with a polyolefin are contained at a wax:addition polymerization resin grafted with a polyolefin ratio of from about 40:60 to about 80:20, and the carrier is a magnetic powder having a coating layer containing a methyl-containing silicone resin.

Abstract translation: 一种可带正​​电荷的双组分显影剂，包括至少一种调色剂和载体，其中调色剂含有粘合剂树脂，着色剂，蜡和电荷控制剂，该粘合剂树脂至少含有一种聚酯树脂和一种加成聚合 用聚烯烃接枝的树脂，蜡和接枝有聚烯烃的加成聚合树脂包含在蜡：接枝聚烯烃比为约40:60至约80:20的加成聚合树脂中，载体是磁性粉末 具有含有含甲基的有机硅树脂的涂层。

公开(公告)号：US5705303A

公开(公告)日：1998-01-06

申请号：US616760

申请日：1996-03-15

Applicant: Masanori Ichimura ,  Michio Take ,  Susumu Saito

Inventor： Masanori Ichimura ,  Michio Take ,  Susumu Saito

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/097

CPC classification number: G03G9/09725 ,  G03G9/09716

Abstract: A toner composition for electrophotography comprising toner particles comprising a binder and a colorant and an additive, wherein the additive is crystalline titanium dioxide fine particles which have been treated with a coupling agent and which have a specific surface area of 60 to 100 m.sup.2 /g and a Karl Fischer moisture content of not more than 5% by weight. Compounds represented by formulae (I), (II) or (III) are used as the coupling agent: R.sup.1 Si(X).sub.3 (I) R.sup.1' R.sup.2 Si(X).sub.2 (II) R.sup.1' R.sup.2 R.sup.3 SiX (III) wherein R.sup.1 represents an alkyl group having 9 to 20 carbon atoms; R.sup.1' represents an alkyl group having 1 to 20 carbon atoms; R.sup.2 and R.sup.3 each represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 30 carbon atoms; and X represents a chlorine atom, an alkoxy group having 1 to 10 carbon atoms or an acetoxy-group having 3 to 5 carbon atoms.

Abstract translation: 一种电子照相用调色剂组合物，其包括含有粘合剂和着色剂和添加剂的调色剂颗粒，其中所述添加剂是已经用偶联剂处理并具有60-100m 2 / g比表面积的结晶二氧化钛细颗粒， 卡尔费休水分含量不超过5％重量。 由式（I），（II）或（III）表示的化合物用作偶联剂：R1Si（X）3（I）R1'R2Si（X）2（II）R1'R2R3SiX（Ⅲ）其中R1表示 具有9至20个碳原子的烷基; R1'表示碳原子数1〜20的烷基， R2和R3各自表示氢原子，碳原子数1〜20的烷基或碳原子数6〜30的芳基。 X表示氯原子，碳原子数1〜10的烷氧基或碳原子数3〜5的乙酰氧基。

公开(公告)号：US5529871A

公开(公告)日：1996-06-25

申请号：US276488

申请日：1994-07-18

Applicant: Masanori Ichimura ,  Hiroshi Takayama ,  Michio Take ,  Hideyuki Akagi ,  Takashi Imai ,  Satoshi Inoue ,  Yasuo Yamamoto ,  Yutaka Sugizaki ,  Koji Fukushima ,  Masayuki Takei ,  Masaru Miura

Inventor： Masanori Ichimura ,  Hiroshi Takayama ,  Michio Take ,  Hideyuki Akagi ,  Takashi Imai ,  Satoshi Inoue ,  Yasuo Yamamoto ,  Yutaka Sugizaki ,  Koji Fukushima ,  Masayuki Takei ,  Masaru Miura

IPC: G03G9/08 ,  G03G9/09 ,  G03G9/00

CPC classification number: G03G9/0804 ,  G03G9/081 ,  G03G9/09 ,  G03G9/0906

Abstract: A color toner providing a toner image excellent in brightness, clearness and graininess and a process for producing the same are disclosed, wherein a proportion of dispersed pigment particles having a circle-equivalent diameter of 0.3 .mu.m or greater does not exceed 0.1% of the total number of said dispersed pigment particles. The process comprises kneading a water-containing pigment paste and a binder resin at a temperature of 100.degree. C. or higher under pressure in a heat and pressure kneader to remove a water content to obtain a pigment dispersion, melt-kneading the resulting pigment dispersion together with a binder resin, and grinding the mixture.

Abstract translation: 本发明提供一种提供亮度，清晰度和颗粒度优异的调色剂图像的彩色调色剂，其中，当量圆直径为0.3μm以上的分散颜料颗粒的比例不超过0.1μm 所述分散的颜料颗粒的总数。 该方法包括在100℃或更高的温度下在加压和捏合机中捏合含水颜料糊和粘合剂树脂以除去水分，得到颜料分散体，将得到的颜料分散体 与粘合剂树脂一起研磨混合物。

公开(公告)号：US09389581B2

公开(公告)日：2016-07-12

申请号：US13112699

申请日：2011-05-20

Applicant: Katsuyuki Kitajima ,  Yutaka Saito ,  Michio Take ,  Yoshifumi Iida ,  Motoko Sakai

Inventor： Katsuyuki Kitajima ,  Yutaka Saito ,  Michio Take ,  Yoshifumi Iida ,  Motoko Sakai

IPC: G03G9/093 ,  G03G21/18 ,  G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/097 ,  G03G15/01 ,  G03G15/08

CPC classification number: G03G21/18 ,  G03G9/0819 ,  G03G9/08711 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09 ,  G03G9/09716 ,  G03G9/09725 ,  G03G15/0189 ,  G03G15/0855 ,  G03G15/0865

Abstract: A toner for developing an electrostatic image, including: toner particles containing at least a binder resin, a release agent, and a colorant; and an external additive having a volume average particle diameter (d) of from 70 nm to 400 nm, a ratio (d/σ) of the volume average particle diameter (d) to a standard deviation (σ) of a volumetric basis particle diameter of from 2.0 to 12, and an average circularity of from 0.5 to 0.9.

Abstract translation: 一种用于显影静电图像的调色剂，包括：至少含有粘合剂树脂，脱模剂和着色剂的调色剂颗粒; 和体积平均粒径（d）为70nm至400nm的外部添加剂，体积平均粒径（d）与体积基准的标准偏差（＆sgr）的比率（d / s） 粒径为2.0〜12，平均圆形度为0.5〜0.9。

公开(公告)号：US08735036B2

公开(公告)日：2014-05-27

申请号：US13432918

申请日：2012-03-28

Applicant: Katsuyuki Kitajima ,  Yutaka Saito ,  Sakon Takahashi ,  Michio Take

Inventor： Katsuyuki Kitajima ,  Yutaka Saito ,  Sakon Takahashi ,  Michio Take

IPC: G03G9/097

CPC classification number: G03G9/097 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/09733 ,  G03G21/0011

Abstract: An electrostatic charge image developing toner includes: toner particles; and an external additive having an average particle diameter of from about 70 nm to about 420 nm, an average circularity of equal to or less than about 0.9, and a standard deviation of the circularity of greater than 0.2.

Abstract translation: 静电荷图像显影调色剂包括：调色剂颗粒; 和平均粒径为约70nm至约420nm，平均圆形度等于或小于约0.9的外部添加剂和圆形度的标准偏差大于0.2。

公开(公告)号：US20130071781A1

公开(公告)日：2013-03-21

申请号：US13351783

申请日：2012-01-17

Applicant: Yutaka SAITO ,  Sakon TAKAHASHI ,  Katsuyuki KITAJIMA ,  Michio TAKE

Inventor： Yutaka SAITO ,  Sakon TAKAHASHI ,  Katsuyuki KITAJIMA ,  Michio TAKE

IPC: G03G9/00 ,  G03G15/08

CPC classification number: G03G9/0812 ,  G03G9/09716 ,  G03G9/09725

Abstract: An electrostatic charge image developing toner includes toner particles and an external additive. The toner particles have a moisture content of from 0.1 mass % to 5.0 mass %, and the external additive has a volume average particle diameter of from about 70 nm to about 400 nm and an average circularity of from 0.5 to 0.9.

Abstract translation: 静电荷图像显影调色剂包括调色剂颗粒和外部添加剂。 调色剂颗粒的水分含量为0.1质量％至5.0质量％，外部添加剂的体积平均粒径为约70nm至约400nm，平均圆形度为0.5至0.9。

公开(公告)号：US07514194B2

公开(公告)日：2009-04-07

申请号：US11303982

申请日：2005-12-19

Applicant: Masakazu Iijima ,  Takao Ishiyama ,  Masaaki Suwabe ,  Yasuo Kadokura ,  Michio Take ,  Hiroshi Nakazawa

Inventor： Masakazu Iijima ,  Takao Ishiyama ,  Masaaki Suwabe ,  Yasuo Kadokura ,  Michio Take ,  Hiroshi Nakazawa

IPC: G03G9/087

CPC classification number: G03G9/08786 ,  G03G9/0804 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08704 ,  G03G9/08731 ,  G03G9/08755 ,  G03G9/08766 ,  G03G9/08777 ,  G03G9/08791 ,  G03G9/08797

Abstract: The invention provides a toner for developing electrostatic latent images containing at least a binder resin, a colorant, a releasing agent, and a graft polymer that has been made by graft polymerization of a resin matrix and a macromonomer including at least one group selected from the group consisting of a hydroxyl group, a hydroxyalkyl group, and a pyrolidonyl group, and a production method thereof. The invention further provides an electrostatic latent image developer using the toner, an image forming method using the toner, and an image forming apparatus.

Abstract translation: 本发明提供了一种用于显影静电潜像的调色剂，其至少包含粘合剂树脂，着色剂，脱模剂和接枝聚合物，所述粘合剂树脂，着色剂，脱模剂和接枝聚合物通过树脂基质和大分子单体的接枝聚合而制备，所述大分子单体包括至少一种选自 羟基，羟基烷基和吡咯烷酮基组成的组及其制造方法。 本发明还提供了使用调色剂的静电潜像显影剂，使用调色剂的成像方法和图像形成装置。