公开(公告)号：US08431320B2

公开(公告)日：2013-04-30

申请号：US13187012

申请日：2011-07-20

申请人： Masaharu Matsubara ,  Hiroyuki Kozuru ,  Noboru Ueda

发明人： Masaharu Matsubara ,  Hiroyuki Kozuru ,  Noboru Ueda

IPC分类号： G03G9/087

CPC分类号： G03G9/0806 ,  G03G9/08708 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： Disclosed is a manufacturing method of toner which includes at least polyester resin and colorant, comprising the steps of: (A) dissolving, into an organic solvent, the polyester resin and ultrahigh molecular weight styrene resin in which a peak is present in a range larger than 500 thousands and smaller than 3 million in a molecular weight distribution, and preparing a binder resin solution; (B) dispersing the binder resin solution as binder resin solution droplets into an aqueous medium; (C) removing the organic solvent from the binder resin solution droplets, and preparing a resin particle dispersion; and (D) aggregating resin particles from which the organic solvent is removed and colorant particles containing the colorant with each other, and forming toner particles.

摘要翻译： 公开了一种至少包含聚酯树脂和着色剂的调色剂的制造方法，包括以下步骤：（A）将聚酯树脂和超高分子量苯乙烯树脂溶解在有机溶剂中，其中峰存在于更大的范围内 分子量分布超过500000，小于300万，制备粘合剂树脂溶液; （B）将作为粘合剂树脂溶液液滴的粘合剂树脂溶液分散到水性介质中; （C）从粘合剂树脂液滴中除去有机溶剂，制备树脂颗粒分散体; 和（D）除去有机溶剂的树脂颗粒和包含着色剂的着色剂颗粒彼此之间，并形成调色剂颗粒。

公开(公告)号：US08507169B2

公开(公告)日：2013-08-13

申请号：US13406987

申请日：2012-02-28

申请人： Tomoko Mine ,  Mikihiko Sukeno ,  Tatsuya Nagase ,  Tomomi Oshiba ,  Hiroyuki Kozuru ,  Saburou Hiraoka ,  Yoshiyasu Matsumoto ,  Kosuke Nakamura ,  Hitomi Motani ,  Takanari Kayamori

发明人： Tomoko Mine ,  Mikihiko Sukeno ,  Tatsuya Nagase ,  Tomomi Oshiba ,  Hiroyuki Kozuru ,  Saburou Hiraoka ,  Yoshiyasu Matsumoto ,  Kosuke Nakamura ,  Hitomi Motani ,  Takanari Kayamori

IPC分类号： G03G9/08

CPC分类号： G03G9/1133 ,  G03G9/1138 ,  G03G9/1139

摘要： A two-component developer is disclosed, composing a toner comprising parent toner particles with an attached external additive and a carrier provided with a resin covering layer on a surface of a core particle, wherein the resin covering layer comprises a binder resin comprising an acrylic resin and when the resin covering layer is divided in half to a core particle side and a surface side, a nitrogen element content of the core particle side is larger than a nitrogen element content of the surface side.

摘要翻译： 公开了一种双组分显影剂，其包括具有附着的外部添加剂的母体调色剂颗粒和在芯颗粒的表面上设置有树脂覆盖层的载体的调色剂，其中所述树脂覆盖层包含粘合剂树脂，其包含丙烯酸树脂 并且当树脂被覆层被分成一半到芯粒子侧和表面侧时，核心粒子侧的氮元素含量​​大于表面侧的氮元素含量​​。

公开(公告)号：US07879521B2

公开(公告)日：2011-02-01

申请号：US11755957

申请日：2007-05-31

申请人： Hiroyuki Kozuru ,  Yoshiaki Kobayashi ,  Tatsuya Nagase

发明人： Hiroyuki Kozuru ,  Yoshiaki Kobayashi ,  Tatsuya Nagase

IPC分类号： G03G9/00

CPC分类号： G03G15/0818 ,  G03G9/113 ,  G03G9/1131 ,  G03G9/1138 ,  G03G9/1139

摘要： An objective is to provide a highly durable carrier for a developer which is capable of forming a high-definition image stably with no deterioration of a developing property since the carrier resistance and the charging ability remain stable even though the developer is used for a long duration; a method of manufacturing the carrier; and an image forming method employing the same. Disclosed is an electrophotographic carrier comprising a carrier core material and provided thereon, a resin-coated layer comprising charge control particles and low-resistive particles, wherein an initial carrier resistance is 5×108-3×1010 Ωcm; a concentration of the low-resistive particles grows higher toward a surface of the layer from an inner part of the layer; and a concentration of the charge control particles grows lower toward a surface of the layer from an inner part of the layer.

摘要翻译： 目的是为显影剂提供高度耐用的载体，其能够稳定地形成高清晰度图像，而不会劣化显影性能，因为即使长时间使用显影剂，载体电阻和充电能力保持稳定 ; 制造载体的方法; 以及采用该图像形成方法的图像形成方法。 公开了一种电子照相载体，其包含载体芯材料，其上设置有包含电荷控制颗粒和低电阻颗粒的树脂涂层，其中初始载流子电阻为5×108-3×1010Ω·cm; 低电阻粒子的浓度从层的内部向层的表面生长较高; 并且电荷控制颗粒的浓度从该层的内部朝向该层的表面生长较低。

公开(公告)号：US06475689B2

公开(公告)日：2002-11-05

申请号：US09907243

申请日：2001-07-17

申请人： Hiroshi Yamazaki ,  Kenji Yamane ,  Hiroyuki Kozuru ,  Kenji Hayashi ,  Mikio Kohyama

发明人： Hiroshi Yamazaki ,  Kenji Yamane ,  Hiroyuki Kozuru ,  Kenji Hayashi ,  Mikio Kohyama

IPC分类号： G03G9087

CPC分类号： G03G9/08755 ,  G03G9/0819 ,  G03G9/08742 ,  G03G9/08771 ,  G03G9/08784 ,  G03G9/08791

摘要： A toner for developing electrostatic latent image is disclosed. The toner comprise of particles having a volume average particle diameter of from 3 to 8 &mgr;m, and said resin is obtained by either emulsion polymerization, mini-emulsion polymerization employing or suspension polymerization employing thioglycerin or at least one compound selected from compounds represented by the Formula (1) as the chain transfer agent. HS—R1—COOR2  (1) In the formula, R1 is an aliphatic group having carbon atoms from 1 to 10, which may have a substituent, and R2 is an aliphatic group having carbon atoms from 1 to 15, which may have a substituent.

摘要翻译： 公开了一种静电潜像显影用调色剂。 调色剂由体积平均粒径为3〜8μm的颗粒构成，所述树脂通过乳液聚合，使用或使用硫代甘油的悬浮聚合的微乳液聚合或至少一种选自式 （1）作为链转移剂。在式中，R 1为碳原子数为1〜10的脂肪族基，可以具有取代基，R 2为碳原子数为1〜15的脂肪族基，可以具有 取代基。

公开(公告)号：US07402367B2

公开(公告)日：2008-07-22

申请号：US10896311

申请日：2004-07-20

申请人： Tomoe Kitani ,  Asao Matsushima ,  Hiroyuki Kozuru ,  Tomoko Tanma

发明人： Tomoe Kitani ,  Asao Matsushima ,  Hiroyuki Kozuru ,  Tomoko Tanma

IPC分类号： G03G9/08

CPC分类号： G03G9/0804 ,  G03G9/08759 ,  G03G9/09733

摘要： A toner comprising a compound represented by the following formula: R1O(R2O)nH where R1 is an aliphatic hydrocarbon group having 10 to 22 carbon atoms or a distyrene-substituted phenyl group; R2 is an alkylene group having 2 to 6 carbon atoms; and n is an integer of 1 to 15.

摘要翻译： 包含由下式表示的化合物的调色剂：<？in-line-formula description =“In-line Formulas”end =“lead”？> R 1 O（R 2） 其中R 1是脂族烃，其中R 1是氢或低级烷基， 具有10至22个碳原子的基团或苯乙烯取代的苯基; R 2是具有2至6个碳原子的亚烷基; n为1〜15的整数。

公开(公告)号：US5738964A

公开(公告)日：1998-04-14

申请号：US746633

申请日：1996-11-13

申请人： Tsuyoshi Uchida ,  Yuji Marukawa ,  Hiroyuki Kozuru

发明人： Tsuyoshi Uchida ,  Yuji Marukawa ,  Hiroyuki Kozuru

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G15/20

CPC分类号： G03G9/08797 ,  G03G9/08711 ,  G03G9/08795

摘要： An electrophotographic toner is disclosed. The toner comprises a binder resin, a colorant and a mold releasing material, and the binder resin contains 8-32% by weight of 20,000-300,000 molecular weight component (MP), 12-28% by weight of high molecular weight component exceeding 300,000 (HP); that said HP content and MP content satisfy the following equation; 45 (%).ltoreq.MP Ratio+HP Ratio.times.2.ltoreq.65 (%) and the glass transition point of the binder resin is 52.degree.-62.degree. C. A method of fixing toner images using a heat roller is also disclosed.

摘要翻译： 公开了电子照相调色剂。 调色剂包括粘合剂树脂，着色剂和脱模剂，粘合剂树脂含有8-32重量％的20,000-300,000分子量组分（MP），12-28重量％的高分子量组分超过30万 （生命值）; 说HP含量和MP含量满足下列公式： 45（％）

公开(公告)号：US08435715B2

公开(公告)日：2013-05-07

申请号：US13185123

申请日：2011-07-18

申请人： Kosuke Nakamura ,  Hiroyuki Kozuru ,  Yoshiyasu Matsumoto ,  Takanari Kayamori ,  Junya Ueda

发明人： Kosuke Nakamura ,  Hiroyuki Kozuru ,  Yoshiyasu Matsumoto ,  Takanari Kayamori ,  Junya Ueda

IPC分类号： G03G5/00

CPC分类号： G03G9/107 ,  G03G9/113 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1133

摘要： Disclosed is a production method of a two-component developer for developing an electrostatic image comprising a toner and a resin coated carrier having a porous magnetic core particle and a resin coated layer, wherein the porous magnetic core particle are composed of a porous ferrite material and have pore apertures on a surface of the particle, and the method comprises steps of blocking the pore apertures of the porous magnetic core particle with rubber particles by dry mixing of the porous magnetic core particle and the rubber particles, forming the resin coated carrier by forming a resin layer on the porous magnetic core particle whose pore apertures have been blocked, and mixing the resin coated carrier and the toner.

摘要翻译： 公开了一种用于显影静电图像的双组分显影剂的制备方法，所述双组分显影剂包括调色剂和具有多孔磁心颗粒和树脂涂层的树脂涂布载体，其中所述多孔磁性核颗粒由多孔铁氧体材料和 在颗粒表面上具有孔隙孔，该方法包括以下步骤：通过干燥多孔磁性核心颗粒和橡胶颗粒的混合，用橡胶颗粒阻挡多孔磁性核颗粒的孔隙，通过形成树脂涂覆载体 在多孔磁性核颗粒上的孔隙已经被阻挡的树脂层，并将树脂涂覆的载体和调色剂混合。

公开(公告)号：US08034525B2

公开(公告)日：2011-10-11

申请号：US12168627

申请日：2008-07-07

申请人： Yoshiyasu Matsumoto ,  Kenji Yamane ,  Hiroyuki Kozuru

发明人： Yoshiyasu Matsumoto ,  Kenji Yamane ,  Hiroyuki Kozuru

IPC分类号： G03G21/00

CPC分类号： G03G5/005 ,  G03G9/08711 ,  G03G9/08724 ,  G03G9/08726 ,  G03G9/08728 ,  G03G9/08795 ,  G03G9/08797

摘要： An image forming method is disclosed, which includes steps of cleaning toner remaining on a photoreceptor surface by a cleaning blade which is arranged on counter direction to rotation direction of the photoreceptor, supplying a fatty acid metal salt onto the photoreceptor surface after the cleaning, spreading the supplied fatty acid metal salt on the photoreceptor surface by using a spreading blade which is arranged on trail direction to rotation direction of the photoreceptor, charging the photoreceptor by a charging member, exposing the photoreceptor to form a latent image, developing the latent image by a developer to form a toner image on the photoreceptor, and transferring the toner image onto an image receiving member by a transfer roller facing to the photoreceptor through the image receiving material, in which the toner comprises a binder resin and a colorant, in which the toner has a glass transition point of from 20 to 45° C. and the binder resin contains 50% or more of vinyl polymer resin by weight based on the whole weight of the binder resin.

摘要翻译： 公开了一种图像形成方法，其包括通过与感光体的旋转方向相反的方向布置的清洁刮刀清洁残留在感光体表面上的调色剂的步骤，在清洁，铺展之后将脂肪酸金属盐供应到感光体表面上 通过使用沿着感光体的旋转方向的跟踪方向设置的扩展刀片，在感光体表面上供给的脂肪酸金属盐，通过充电部件对感光体进行充电，使感光体曝光以形成潜像，使潜像显影 显影剂，用于在感光体上形成调色剂图像，并通过图像接收材料将调色剂图像转印到面向感光体​​的转印辊上，其中调色剂包括粘合剂树脂和着色剂，其中 调色剂的玻璃化转变点为20〜45℃，粘合剂树脂含有50％以上的葡萄 基于粘合剂树脂的整个重量的重量的聚合物树脂。

公开(公告)号：US20060019186A1

公开(公告)日：2006-01-26

申请号：US10896311

申请日：2004-07-20

申请人： Tomoe Kitani ,  Asao Matsushima ,  Hiroyuki Kozuru ,  Tomoko Tanma

发明人： Tomoe Kitani ,  Asao Matsushima ,  Hiroyuki Kozuru ,  Tomoko Tanma

IPC分类号： G03G9/08

CPC分类号： G03G9/0804 ,  G03G9/08759 ,  G03G9/09733

摘要： A toner comprising a compound represented by the following formula: R1O(R2O)nH where R1 is an aliphatic hydrocarbon group having 10 to 22 carbon atoms or a distyrene-substituted phenyl group; R2 is an alkylene group having 2 to 6 carbon atoms; and n is an integer of 1 to 15.

摘要翻译： 包含由下式表示的化合物的调色剂：<？in-line-formula description =“In-line Formulas”end =“lead”？> R 1 O（R 2） 其中R 1是脂族烃，其中R 1是氢或低级烷基， 具有10至22个碳原子的基团或苯乙烯取代的苯基; R 2是具有2至6个碳原子的亚烷基; n为1〜15的整数。

公开(公告)号：US06902856B2

公开(公告)日：2005-06-07

申请号：US10315489

申请日：2002-12-09

申请人： Asao Matsushima ,  Hiroyuki Kozuru ,  Meizo Shirose ,  Hiroshi Yamazaki

发明人： Asao Matsushima ,  Hiroyuki Kozuru ,  Meizo Shirose ,  Hiroshi Yamazaki

IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G13/01 ,  G03G15/01 ,  G03G15/08 ,  G03G15/16 ,  G03G15/20

CPC分类号： G03G9/0819 ,  G03G13/013

摘要： An electrophotographic image forming method is disclosed. In the method each of a plurality of toner images formed on the latent image bearing body is sequentially onto an intermediate transfer body, and the transferred image on the intermediate transfer body is transferred to an image forming support, and fixed using a heating roller fixing system, and the toner satisfies ratio (Dv50/Dp50) is from 1.00 to 1.15; ratio (Dv75/Dp75) is from 1.00 to 1.20; and the content ratio of toner having a particle diameter of at most 0.7×(Dp50) is less than or equal to 10 percent by number. Dv50, Dp50, Dv75 and Dp75 are specified in the specification.

摘要翻译： 公开了电子照相图像形成方法。 在所述方法中，将形成在潜像承载体上的多个调色剂图像中的每一个顺序地放置在中间转印体上，并将中间转印体上的转印图像转印到成像支撑体上，并使用加热辊固定系统 ，调色剂满足率（Dv50 / Dp50）为1.00〜1.15; （Dv75 / Dp75）为1.00〜1.20; 粒径在0.7倍以下的调色剂的含有比例（Dp50）为10个数量％以下。 Dv50，Dp50，Dv75和Dp75在规范中规定。