公开(公告)号：US08945806B2

公开(公告)日：2015-02-03

申请号：US13557734

申请日：2012-07-25

Applicant: Eiji Kawakami ,  Shintaro Anno ,  Hirokazu Hamano ,  Michio Take

Inventor： Eiji Kawakami ,  Shintaro Anno ,  Hirokazu Hamano ,  Michio Take

IPC: G03G9/00

CPC classification number: G03G9/09716 ,  G03G9/08755 ,  G03G9/08797 ,  G03G9/09708 ,  G03G9/09725

Abstract: An electrostatic charge image developing toner includes toner particles that contain a colorant, a binder resin and a release agent, and an external additive, in which the external additive contains inorganic particles including an aliphatic alcohol having 5 or more carbon atoms and a melting point of 20° C. or lower on the surfaces thereof.

Abstract translation: 静电荷图像显影调色剂包括含有着色剂，粘合剂树脂和脱模剂的调色剂颗粒和外部添加剂，其中外部添加剂含有包含具有5个或更多个碳原子的脂肪族醇的无机颗粒和熔点 在其表面上为20℃或更低。

公开(公告)号：US08871416B2

公开(公告)日：2014-10-28

申请号：US13562840

申请日：2012-07-31

Applicant: Yutaka Saito ,  Hiroki Ohmori ,  Hirokazu Hamano

Inventor： Yutaka Saito ,  Hiroki Ohmori ,  Hirokazu Hamano

IPC: G03G9/08

CPC classification number: G03G9/09716 ,  G03G9/09725

Abstract: An electrostatic charge image developing toner includes toner particles containing a colorant, a binder resin, and a release agent, and an external additive, wherein the external additive includes particles having oil-treated surfaces and composite particles containing silica and titania, and the toner has a content ratio of titania with respect to silica on the surface of the toner, as measured by X-ray photoelectron spectroscopy, of equal to or less than 5 atomic %.

Abstract translation: 静电荷图像显影调色剂包括含有着色剂，粘合剂树脂和脱模剂的调色剂颗粒和外部添加剂，其中外部添加剂包括具有油处理表面的颗粒和包含二氧化硅和二氧化钛的复合颗粒，并且调色剂具有 通过X射线光电子能谱法测定的调色剂表面上的二氧化钛相对于二氧化硅的含量比为5原子％以下。

公开(公告)号：US20120251936A1

公开(公告)日：2012-10-04

申请号：US13234879

申请日：2011-09-16

Applicant: Hirokazu HAMANO ,  Tetsuya TAGUCHI ,  Asafumi FUJITA ,  Hiroshi KAMADA ,  Masahiro TAKAGI

Inventor： Hirokazu HAMANO ,  Tetsuya TAGUCHI ,  Asafumi FUJITA ,  Hiroshi KAMADA ,  Masahiro TAKAGI

IPC: G03G9/00 ,  G03G15/08 ,  G03G9/08 ,  B82Y30/00

CPC classification number: G03G9/0906 ,  G03G9/0812 ,  G03G9/09 ,  G03G9/0902 ,  G03G9/0926 ,  G03G9/09708 ,  G03G9/09725

Abstract: A toner for developing an electrostatic image, includes: colored particles containing a colorant and a binder resin, and two or more kinds of inorganic particles that are externally added to a surface of the colored particles, in which the two or more kinds of inorganic particles contain titanium-containing particles and silica-containing particles, an exposure ratio of the surface of the colored particles is about 25% or less, and a ratio of the titanium-containing particles that are in contact with the colored particles is about 15% by number or less.

Abstract translation: 用于显影静电图像的调色剂包括：含有着色剂和粘合剂树脂的着色颗粒和外部添加到着色颗粒表面的两种或更多种无机颗粒，其中两种或更多种无机颗粒 含有含钛颗粒和含二氧化硅的颗粒，着色颗粒的表面的曝光率为约25％以下，与着色颗粒接触的含钛颗粒的比例为约15％ 数字或更少。

公开(公告)号：US20110236052A1

公开(公告)日：2011-09-29

申请号：US12876492

申请日：2010-09-07

Applicant: Masahiro TAKAGI ,  Tetsuya TAGUCHI ,  Hirokazu HAMANO

Inventor： Masahiro TAKAGI ,  Tetsuya TAGUCHI ,  Hirokazu HAMANO

IPC: G03G15/02

CPC classification number: G03G15/0225 ,  G03G21/0058

Abstract: An image forming apparatus includes a member to be cleaned and a cleaning roller driven by contact with the member to be cleaned, and the apparatus is configured such that abrasive grains and at least one of a release agent and a solid lubricant are supplied to the member to be cleaned and that the supplied abrasive grains and the supplied at least one of a release agent and a solid lubricant move on a surface of the member to be cleaned in an axial direction of the cleaning roller.

Abstract translation: 图像形成装置包括待清洁的构件和通过与待清洁的构件接触而驱动的清洁辊，并且该装置被构造成使得磨料颗粒和至少一种脱模剂和固体润滑剂被供应到构件 待清洗，并且供给的磨粒和供给的脱模剂和固体润滑剂中的至少一种在清洁辊的轴向上在要清洁的构件的表面上移动。

公开(公告)号：US20100124715A1

公开(公告)日：2010-05-20

申请号：US12428068

申请日：2009-04-22

Applicant: Hiroshi NAKAZAWA ,  Masanobu NINOMIYA ,  Hirokazu HAMANO

Inventor： Hiroshi NAKAZAWA ,  Masanobu NINOMIYA ,  Hirokazu HAMANO

IPC: G03G9/00 ,  G03G21/18 ,  G03G15/08

CPC classification number: G03G9/08755 ,  G03G9/081 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797

Abstract: A toner for developing an electrostatic charge image includes: an amorphous polyester resin; a crystalline polyester resin; and a releasing agent, an amount of the releasing agent in the toner being from 5 to 15% by weight; an amount of the releasing agent present at a surface of the toner being from 10 to 35% by weight; and the toner showing at least one endothermic peak in each of a temperature range from 45 to 60° C., a temperature range from 65 to 80° C., and a temperature range from 85 to 100° C. in a temperature-rise process of differential scanning calorimetry of the toner.

Abstract translation: 用于显影静电荷图像的调色剂包括：无定形聚酯树脂; 结晶聚酯树脂; 和脱模剂，调色剂中的脱模剂的量为5至15重量％; 存在于调色剂表面的脱模剂的量为10〜35重量％ 调色剂在温度范围为45〜60℃，温度范围为65〜80℃，温度范围为85〜100℃的温度范围内呈现出至少一个吸热峰。 调色剂的差示扫描量热法的工艺。

公开(公告)号：US06864029B2

公开(公告)日：2005-03-08

申请号：US10307313

申请日：2002-12-02

Applicant: Hirokazu Hamano ,  Manabu Serizawa ,  Katsumi Daimon ,  Yuka Ishihara ,  Norihito Fukushima ,  Takashi Imai

Inventor： Hirokazu Hamano ,  Manabu Serizawa ,  Katsumi Daimon ,  Yuka Ishihara ,  Norihito Fukushima ,  Takashi Imai

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

CPC classification number: G03G9/08782 ,  G03G9/0804 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

Abstract: The present invention uses a crystalline resin as a binding resin and provides a toner insuring excellent storability of a resulting image, a method of manufacturing the toner, an electrostatically charged image developer containing the toner, and an image forming method. In the electrophotographic toner containing toner mother particles comprising at least a binding resin and a colorant, a main component of said binding resin comprises a crystalline resin with a melting point in the range from 50 to 120° C. and an average volume particle size in the range from 3.0 to 7.5 μm, while an average value of the BET specific areas of said toner mother particles is in the range from 0.6 to 3.0 m2/g. The electrophotographic toner manufacturing method comprises the steps of coalescing or associating the binding resin particles with colorant particles, and cooling the aggregated particles at the rate of at least 1° C. per minute or more to a temperature below the crystallizing temperature of the binding resin to generate toner particles.

Abstract translation: 本发明使用结晶树脂作为粘合树脂，并提供确保所得图像的优异保存性的调色剂，调色剂的制造方法，含有调色剂的带静电电荷的图像显影剂和图像形成方法。 在含有至少包含粘合树脂和着色剂的调色剂母体颗粒的电子照相调色剂中，所述粘合树脂的主要成分包括熔点在50-120℃范围内的结晶树脂，平均体积粒径 3.0至7.5μm的范围，而所述调色剂母粒的BET比表面积的平均值在0.6-3.0m 2 / g的范围内。 电子照相调色剂制造方法包括以下步骤：将结合树脂颗粒与着色剂颗粒聚结或结合，并且以至少1℃/分钟或更高的速率将聚集颗粒冷却至低于粘合树脂的结晶温度的温度 以产生调色剂颗粒。

公开(公告)号：US06607864B2

公开(公告)日：2003-08-19

申请号：US10014555

申请日：2001-12-14

Applicant: Manabu Serizawa ,  Katsumi Daimon ,  Hirokazu Hamano ,  Yuka Ishihara ,  Norihito Fukushima ,  Takashi Imai

Inventor： Manabu Serizawa ,  Katsumi Daimon ,  Hirokazu Hamano ,  Yuka Ishihara ,  Norihito Fukushima ,  Takashi Imai

IPC: G03G1520

CPC classification number: G03G9/081 ,  G03G9/0804 ,  G03G9/0808 ,  G03G9/0815 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09

Abstract: An image forming method makes the warming-up time short, enables the formation of high-quality images even when fixing is performed continuously at high speed, and restrains degradations of the image quality, such as non-uniformity of gloss and non-uniformity of coloration even under high-temperature and high-humidity conditions. The method uses a toner that is wide in fixing range and is especially excellent in low-temperature fixing property. The method contains a process of melting and thereby fixing a toner image formed by unfixed toner, by heating a heating member that is in contact with the toner image. The surface of the heating member or its vicinity that is in contact with the toner image generates heat, and the toner contains at least a colorant and a binder resin having a crystalline resin with a number average molecular weight of 1500 or more as the main component.

公开(公告)号：US06171747B2

公开(公告)日：2001-01-09

申请号：US09386368

申请日：1999-08-31

Applicant: Yutaka Sugizaki ,  Hirokazu Hamano

Inventor： Yutaka Sugizaki ,  Hirokazu Hamano

IPC: G03G1316

CPC classification number: G03G9/097 ,  G03G9/0823 ,  G03G9/09 ,  G03G13/09

Abstract: Provided is an image forming method including at least a latent image-forming step of forming an electrostatic latent image on a latent image support, a developer layer-forming step of forming a developer layer on a surface of a developer support disposed opposite the latent image support, a developing step of developing the electrostatic latent image on the latent image support with the toner in the developer layer to form a toner image, and a transferring step of transferring the toner image onto a transfer material, characterized in that the latent image support is obtained by forming at least an organic photoconductive layer on a surface of an electroconductive support, the toner is composed of color particles containing at least a binder resin and a coloring agent, a volume average particle diameter of the color particles is between 2.0 and 5.0 &mgr;m, the ratio of the color particles of 1.0 &mgr;m or less is 20% or less in terms of the number of distribution, and the ratio of the color particles exceeding 5.0 &mgr;m is 10% or less in terms of the number of distribution, and the coloring agent is pigment particles. The invention provides the image forming method which can give an image excellent in the fine line reproducibility and the gradation without the disorder of the image and which can suppress deterioration of the latent image support owing to damage or wearing-out of the surface of the latent image support having the organic photoconductive layer.

Abstract translation: 提供了一种图像形成方法，其至少包括在潜像载体上形成静电潜像的潜像形成步骤，在与潜像相对设置的显影剂载体的表面上形成显影剂层的显影剂层形成步骤 支撑，显影步骤，用显影剂层中的调色剂在潜像载体上显影静电潜像，以形成调色剂图像;以及转印步骤，将调色剂图像转印到转印材料上，其特征在于，潜像载体 通过在导电性支持体的表面上形成至少有机光电导层而获得，调色剂由至少含有粘合剂树脂和着色剂的着色粒子构成，着色粒子的体积平均粒径为2.0〜5.0 妈妈，1.0μm以下的着色粒子的比例为分散数的20％以下，颜色的比例 超过5.0μm的颗粒的分布数量为10％以下，着色剂为颜料颗粒。本发明提供了能够使细线再现性和灰度无差异的图像赋予图像的图像形成方法 该图像并且可以抑制由于具有有机光电导层的潜像载体的表面的损坏或磨损而导致的潜像支持体的劣化。

公开(公告)号：US6096463A

公开(公告)日：2000-08-01

申请号：US386342

申请日：1999-08-31

Applicant: Hirokazu Hamano ,  Yutaka Sugizaki

Inventor： Hirokazu Hamano ,  Yutaka Sugizaki

IPC: G03G9/08 ,  G03G9/09 ,  G03G13/20 ,  G03G15/01 ,  G03G15/08 ,  G03G15/20 ,  G03G13/01

CPC classification number: G03G9/0821 ,  G03G13/20 ,  G03G9/09 ,  G03G9/0906

Abstract: An image forming method including developing an electrostatic latent image formed on an electrostatic latent image carrier with a toner containing colored particles comprised of at least a binder resin and a coloring agent to form a toner image, transferring the toner image to a transfer material to form a transferred image, and fixing the transferred image on the transfer material, wherein the toner is made up of at least a binder resin and colored particles containing a coloring agent, the volume mean particle size of the colored particles is from 2.0 to 5.0 .mu.m, the colored particles of 1.0 .mu.m or smaller are 20 number % or lower, and the colored particles of 5.0 .mu.m or larger are 10 number % or lower. The image forming method has a high reproducibility of fine lines and forms an image of a high quality without forming uneven gloss in the image and between the image area and the non-image area and without causing problems such as offset and paper clogging.

Abstract translation: 一种图像形成方法，包括使含有由至少粘合剂树脂和着色剂组成的着色颗粒的调色剂在静电潜像载体上形成的静电潜像显影以形成调色剂图像，将调色剂图像转印到转印材料上形成 转印图像，并将转印图像固定在转印材料上，其中调色剂由至少粘合剂树脂和含有着色剂的着色颗粒组成，着色颗粒的体积平均粒径为2.0-5.0μm 1.0μm以下的着色粒子为20个数％以下，5.0μm以上的着色粒子为10个数％以下。 图像形成方法具有高精细线的再现性，并且形成高质量的图像，而不会在图像中以及图像区域和非图像区域之间形成不均匀的光泽，并且不会引起诸如偏移和纸张堵塞的问题。

公开(公告)号：US5958642A

公开(公告)日：1999-09-28

申请号：US102358

申请日：1998-06-23

Applicant: Shinpei Takagi ,  Yasuhiro Oya ,  Etsuo Tominaga ,  Toyohumi Inoue ,  Tomohiro Takeda ,  Masahiro Uchida ,  Haruhide Ishida ,  Kouzou Ota ,  Hirokazu Hamano ,  Yusaku Shibuya ,  Jun Igarashi ,  Atsuhiko Eguchi ,  Yutaka Sugizaki

Inventor： Shinpei Takagi ,  Yasuhiro Oya ,  Etsuo Tominaga ,  Toyohumi Inoue ,  Tomohiro Takeda ,  Masahiro Uchida ,  Haruhide Ishida ,  Kouzou Ota ,  Hirokazu Hamano ,  Yusaku Shibuya ,  Jun Igarashi ,  Atsuhiko Eguchi ,  Yutaka Sugizaki

IPC: G03G9/083 ,  G03G9/08 ,  G03G9/087 ,  G03G9/113 ,  G03G15/08 ,  G03G9/097 ,  G03G13/22

CPC classification number: G03G9/08706 ,  G03G9/08704 ,  G03G9/08782

Abstract: The toner for developing an electrostatic charge image comprises a colorant, a binding resin and a resin copolymer of aliphatic hydrocarbon and aromatic hydrocarbon having 9 or more of carbon atoms. Preferably, the toner further comprises a wax. The endothermic peak of the wax at DSC is preferably from 70 to 100.degree. C. The petroleum resin copolymer preferably has a ring and ball softening point of from 80 to 170.degree. C., and the binding resin is preferably a polyester resin. The weight ratio of the aromatic hydrocarbon monomer and the aliphatic hydrocarbon monomer of the petroleum resin copolymer is preferably from 99:1 to 50:50.

Abstract translation: 用于显影静电荷图像的调色剂包括着色剂，粘合树脂和脂族烃和具有9个或更多个碳原子的芳族烃的树脂共聚物。 优选地，调色剂还包含蜡。 DSC中的蜡的吸热峰优选为70〜100℃。石油树脂共聚物的环球软化点优选为80〜170℃，粘合树脂优选为聚酯树脂。 石油树脂共聚物的芳香族烃单体和脂肪族烃单体的重量比优选为99:1〜50:50。