公开(公告)号：US08586276B2

公开(公告)日：2013-11-19

申请号：US12056904

申请日：2008-03-27

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

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

IPC: G03G9/10 ,  G03G9/113

CPC classification number: G03G9/107 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/1135

Abstract: 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.

Abstract translation: 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：US20130209932A1

公开(公告)日：2013-08-15

申请号：US13572175

申请日：2012-08-10

Applicant: Toshiaki HASEGAWA ,  Mona TASAKI ,  Fusako KIYONO

Inventor： Toshiaki HASEGAWA ,  Mona TASAKI ,  Fusako KIYONO

IPC: G03G9/107 ,  G03G15/08 ,  G03G21/18 ,  G03G13/16

CPC classification number: G03G9/113 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1132 ,  G03G9/1138

Abstract: An electrostatic charge image developing carrier has magnetic particles and a coating resin layer that coats surfaces of the magnetic particles and contains a hindered amine compound.

Abstract translation: 静电荷图像显影载体具有磁性颗粒和涂覆树脂层，其涂覆磁性颗粒的表面并含有受阻胺化合物。

公开(公告)号：US08142971B2

公开(公告)日：2012-03-27

申请号：US12251156

申请日：2008-10-14

Applicant: Noriyuki Mizutani ,  Yasuhiro Arima ,  Fusako Kiyono ,  Susumu Yoshino

Inventor： Noriyuki Mizutani ,  Yasuhiro Arima ,  Fusako Kiyono ,  Susumu Yoshino

IPC: G03G9/113

CPC classification number: G03G9/1133 ,  G03G9/0804 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/1139

Abstract: An electrostatic charge developer includes a carrier having a core material and a resin coating layer covering the surface of the core material, and a toner having a binder resin that contains a non-crystalline polyester resin and a crystalline polyester resin. The resin coating layer contains a copolymer that contains a nitrogen-containing acrylic ester or nitrogen-containing methacrylic ester and an alicyclic acrylic ester or alicyclic methacrylic ester. The non-crystalline polyester resin contains at least an alkyl succinic acid or an anhydride or lower alkyl ester thereof, or an alkenyl succinic acid or an anhydride or lower alkyl ester thereof. The crystalline polyester resin is an aliphatic polyester resin.

Abstract translation: 静电荷显影剂包括具有芯材的载体和覆盖芯材表面的树脂涂层，以及具有含有非结晶性聚酯树脂和结晶性聚酯树脂的粘合剂树脂的调色剂。 树脂涂层含有含有含氮丙烯酸酯或含氮甲基丙烯酸酯和脂环族丙烯酸酯或脂环族甲基丙烯酸酯的共聚物。 非结晶性聚酯树脂至少含有琥珀酸烷基酯或其酸酐或低级烷基酯，或链烯基琥珀酸或其酸酐或低级烷基酯。 结晶性聚酯树脂是脂肪族聚酯树脂。

公开(公告)号：US20110236820A1

公开(公告)日：2011-09-29

申请号：US12869293

申请日：2010-08-26

Applicant: Toshiaki HASEGAWA ,  Takeshi SHOJI ,  Sakon TAKAHASHI ,  Fusako KIYONO

Inventor： Toshiaki HASEGAWA ,  Takeshi SHOJI ,  Sakon TAKAHASHI ,  Fusako KIYONO

IPC: G03G9/107 ,  G03G13/20 ,  G03G21/18 ,  G03G15/08

CPC classification number: G03G9/1131 ,  G03G9/107 ,  G03G9/1139 ,  G03G2215/00957

Abstract: An electrostatic charge image development carrier includes magnetic core particles and a resin coating layer that contains titanium dioxide particles doped with niobium and coats each of the magnetic core particles.

Abstract translation: 静电荷图像显影载体包括磁芯颗粒和包含掺杂有铌的二氧化钛颗粒并涂覆每个磁芯颗粒的树脂涂层。

公开(公告)号：US07894751B2

公开(公告)日：2011-02-22

申请号：US12546356

申请日：2009-08-24

Applicant: Fusako Kiyono ,  Yosuke Tsurumi ,  Yutaka Saito

Inventor： Fusako Kiyono ,  Yosuke Tsurumi ,  Yutaka Saito

IPC: G03G15/08

CPC classification number: G03G9/0819 ,  G03G9/081 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08797

Abstract: 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.

Abstract translation: 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：US20070020552A1

公开(公告)日：2007-01-25

申请号：US11313208

申请日：2005-12-21

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

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

IPC: G03G9/113

CPC classification number: G03G9/0833 ,  G03G9/0827 ,  G03G9/09708 ,  G03G9/1075 ,  G03G9/1134 ,  G03G2215/0607

Abstract: 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.

Abstract translation: 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：US08455168B2

公开(公告)日：2013-06-04

申请号：US12862028

申请日：2010-08-24

Applicant: Fusako Kiyono ,  Sakon Takahashi ,  Toshiaki Hasegawa ,  Takeshi Shoji

Inventor： Fusako Kiyono ,  Sakon Takahashi ,  Toshiaki Hasegawa ,  Takeshi Shoji

IPC: G03G9/113

CPC classification number: G03G9/1139 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/1075 ,  G03G9/1134 ,  G03G15/0865 ,  G03G15/0868 ,  G03G21/1814

Abstract: An electrophotographic developer is provided which includes: a toner that includes toner base particles and an external additive attached to a surface of the toner base particles and has an amount of Al on the surface of the toner base particles of from about 0.002 to about 0.02 atm %; and a carrier that includes magnetic particles and a coating resin layer that coats the magnetic particles, the coating resin layer including particles with a volume-average particle diameter of from about 80 to about 800 nm, such as organic particles or inorganic particles having an organic layer on a surface of the inorganic particles, the carrier satisfying any one of the following formulas, where SP1, SP2 and SP3 represent a solubility parameter of resin of the coating resin layer, the organic particles, and the organic layer respectively: about 10>|SP1−SP2|>about 4  (1); and about 10>|SP1−SP3|>about 4  (2).

Abstract translation: 提供了一种电子照相显影剂，其包括：调色剂，其包括调色剂基础颗粒和附着到调色剂基础颗粒的表面的外部添加剂，并且调色剂基础颗粒表面上的Al的量为约0.002至约0.02atm ％; 以及包含磁性颗粒的载体和涂覆磁性颗粒的涂覆树脂层，涂层树脂层包括体积平均粒径为约80至约800nm的颗粒，例如有机颗粒或具有有机物的无机颗粒 无机粒子的表面上的层，载体满足下式中的任一个，其中SP1，SP2和SP3分别表示涂料树脂层，有机颗粒和有机层的树脂的溶解度参数：约10> | SP1-SP2 |>约4（1）; 和大约10（SP1）| SP1-SP3 |>约4（2）。

公开(公告)号：US20120107739A1

公开(公告)日：2012-05-03

申请号：US13094253

申请日：2011-04-26

Applicant: Takayuki YAMASHITA ,  Kazuhiko ARAI ,  Kunihiko SATO ,  Haruhide ISHIDA ,  Michio TAKE ,  Sakon TAKAHASHI ,  Fusako KIYONO ,  Yoshifumi IIDA ,  Mona TASAKI

Inventor： Takayuki YAMASHITA ,  Kazuhiko ARAI ,  Kunihiko SATO ,  Haruhide ISHIDA ,  Michio TAKE ,  Sakon TAKAHASHI ,  Fusako KIYONO ,  Yoshifumi IIDA ,  Mona TASAKI

IPC: G03G15/09 ,  G03G21/00 ,  G03G21/18

CPC classification number: G03G21/0094 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/08797 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/113

Abstract: The present invention provides an electrostatic latent image developer used in an image forming apparatus including: an image holding member; a charging unit; a latent image forming unit; a developing unit which stores the electrostatic latent image developer and includes a developer holding member, wherein the developing unit develops the electrostatic latent image formed on the image holding member by bringing a magnetic brush, which is formed on a surface of the developer holding member by the electrostatic latent image developer, into contact with the image holding member, to form a toner image; a transfer unit; a cleaning unit; and a lubricant applying unit, wherein the electrostatic latent image developer contains a toner having a 50% integrated volume particle diameter of from 3.0 to 6.0 μm, and a carrier having a mean magnetization of 5.0×10−16 to 4.0×10−15 AM2/particle in an applied magnetic field of 1 kilo-oersted.

Abstract translation: 本发明提供一种图像形成装置中使用的静电潜像显影剂，包括：图像保持部件; 充电单元; 潜像形成单元; 显影单元，其存储静电潜像显影剂并且包括显影剂保持部件，其中，显影单元通过使形成在显影剂保持部件的表面上的磁刷被形成在图像保持部件上而形成的静电潜像 静电潜像显影剂与图像保持部件接触以形成调色剂图像; 转运单位 清洁单元; 以及润滑剂涂布单元，其中所述静电潜像显影剂含有具有3.0至6.0μm的一体积体积的50％的调色剂和平均磁化强度为5.0×10-16至4.0×10-15AM2的载体 /颗粒在1千奥斯特施加的磁场中。

公开(公告)号：US20120093543A1

公开(公告)日：2012-04-19

申请号：US13204316

申请日：2011-08-05

Applicant: Miho IKEDA ,  Sakon TAKAHASHI ,  Kazuhiko ARAI ,  Haruhide ISHIDA ,  Michio TAKE ,  Kunihiko SATO ,  Yoshinori KUBO ,  Fusako KIYONO

Inventor： Miho IKEDA ,  Sakon TAKAHASHI ,  Kazuhiko ARAI ,  Haruhide ISHIDA ,  Michio TAKE ,  Kunihiko SATO ,  Yoshinori KUBO ,  Fusako KIYONO

IPC: G03G15/09

CPC classification number: G03G15/09 ,  G03G9/0819 ,  G03G9/1075 ,  G03G2215/00957 ,  G03G2215/0609

Abstract: An electrostatic latent image developer contains a toner having a volume-average particle diameter of about 2.0 μm to about 6.5 μm, and a carrier whose average magnetization per carrier particle at an applied magnetic field of 1 kilooersted is about 3.0×10−16 Am2/particle to about 3.0×10−15 Am2/particle, wherein the electrostatic latent image developer is used in an image forming apparatus including an image-carrying member having a top surface layer composed of a cured film containing fluorocarbon resin particles, a developing unit that develops an electrostatic latent image formed on the image-carrying member to form a toner image by bringing a magnetic brush formed of the electrostatic latent image developer and having a brush roughness of about 300 μm to about 850 μm into contact with the image-carrying member, and a cleaning unit that includes a cleaning blade.

Abstract translation: 静电潜像显影剂含有体积平均粒径为约2.0μm至约6.5μm的调色剂，并且在1kostst的施加磁场下载体颗粒的平均磁化强度为约3.0×10-16 Am 2 / 颗粒至约3.0×10 -15 Am 2 /颗粒，其中所述静电潜像显影剂用于包括具有由含有氟碳树脂颗粒的固化膜构成的顶表面层的图像承载构件的图像形成装置，显影单元， 通过使由静电潜像显影剂形成的具有约300μm至约850μm的刷子粗糙度的磁刷与图像承载构件接触来形成形成在图像承载构件上的静电潜像以形成调色剂图像， 以及包括清洁刮板的清洁单元。

公开(公告)号：US20090111042A1

公开(公告)日：2009-04-30

申请号：US12166743

申请日：2008-07-02

Applicant: Fusako KIYONO ,  Taichi YAMADA ,  Yosuke TSURUMI ,  Akira MATSUMOTO ,  Akihiro IIZUKA

Inventor： Fusako KIYONO ,  Taichi YAMADA ,  Yosuke TSURUMI ,  Akira MATSUMOTO ,  Akihiro IIZUKA

IPC: G03G9/093 ,  G03G9/087 ,  G03G15/08

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

Abstract: 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.

Abstract translation: 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的形状系数SF1为5〜30％，在树脂被覆层中使用的树脂的划痕强度试验中的划痕宽度为80μm〜 200毫米，划痕深度为60毫米至150毫米。