公开(公告)号：US08268527B2

公开(公告)日：2012-09-18

申请号：US12854487

申请日：2010-08-11

Applicant: Takuya Kadota ,  Yoshihiro Mikuriya ,  Tsuyoshi Nozaki ,  Atsushi Yamamoto ,  Yoshimichi Ishikawa ,  Tomohiro Fukao ,  Tomoharu Miki

Inventor： Takuya Kadota ,  Yoshihiro Mikuriya ,  Tsuyoshi Nozaki ,  Atsushi Yamamoto ,  Yoshimichi Ishikawa ,  Tomohiro Fukao ,  Tomoharu Miki

IPC: G03G9/08

CPC classification number: G03G9/09385 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/09321 ,  G03G9/09378 ,  G03G9/09392 ,  G03G2215/0614

Abstract: A toner is provided including a core particle comprising a binder resin, a colorant, and a release agent, and a shell layer comprising particles of a vinyl resin. The vinyl resin comprises 80% by weight or more of a unit of an aromatic compound having a vinyl-polymerizable functional group. A method of manufacturing the above toner is also provided, including steps of dissolving or dispersing the binder resin, the colorant, and the release agent in an organic solvent to prepare an oily liquid, dispersing the oily liquid in an aqueous medium to prepare the core particles, and adhering particles of a vinyl resin to the surfaces of the core particles to form shell layers.

Abstract translation: 提供了一种调色剂，其包括包含粘合剂树脂，着色剂和脱模剂的核心颗粒，以及包含乙烯基树脂颗粒的壳层。 乙烯基树脂包含80重量％以上的具有乙烯基聚合性官能团的芳香族化合物单元。 还提供了制造上述调色剂的方法，包括将粘合剂树脂，着色剂和脱模剂溶解或分散在有机溶剂中以制备油性液体的步骤，将油状液体分散在水性介质中以制备芯 颗粒和粘合的乙烯基树脂颗粒到芯颗粒的表面以形成壳层。

公开(公告)号：US20110053071A1

公开(公告)日：2011-03-03

申请号：US12870433

申请日：2010-08-27

Applicant: Tomoharu Miki ,  Takuya Kadota ,  Yoshihiro Mikuriya ,  Tsuyoshi Nozaki ,  Atsushi Yamamoto ,  Yoshimichi Ishikawa ,  Tomohiro Fukao

Inventor： Tomoharu Miki ,  Takuya Kadota ,  Yoshihiro Mikuriya ,  Tsuyoshi Nozaki ,  Atsushi Yamamoto ,  Yoshimichi Ishikawa ,  Tomohiro Fukao

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

CPC classification number: G03G9/09321 ,  G03G9/09364 ,  G03G9/09371 ,  G03G9/09392 ,  G03G15/08

Abstract: To provide a toner comprising: a binder resin, a colorant, and a releasing agent, wherein the toner has a core shell structure, and wherein the core contains at least one resin selected from the group consisting of a hybrid resin and a polyester resin, where the hybrid resin is a resin in which a polyester resin and a vinyl resin are chemically bonded to each other, and the shell contains a resin prepared by polymerizing at least a styrene monomer and an ester monomer represented by the following General Formula (1): where, ‘n’ is 2 or 3, ‘X’ is any of 0 to 9, R1 is a hydrogen atom, or an alkyl group, and R2 is a hydrogen atom, an alkyl group, or a phenyl group.

Abstract translation: 提供一种调色剂，其包括：粘合剂树脂，着色剂和脱模剂，其中所述调色剂具有核壳结构，并且其中所述芯包含选自混合树脂和聚酯树脂中的至少一种树脂， 其中混合树脂是其中聚酯树脂和乙烯基树脂彼此化学键合的树脂，并且壳包含通过聚合至少一种苯乙烯单体和由以下通式（1）表示的酯单体制备的树脂， 其中，'n'为2或3，'X'为0〜9中的任一个，R 1为氢原子或烷基，R 2为氢原子，烷基或苯基。

公开(公告)号：US09360824B2

公开(公告)日：2016-06-07

申请号：US14791658

申请日：2015-07-06

Applicant: Tomohiro Fukao ,  Tsuyoshi Nozaki ,  Yoshihiro Mikuriya ,  Yoshimichi Ishikawa ,  Atsushi Yamamoto ,  Kazuoki Fuwa ,  Tomoharu Miki ,  Naoki Nakatake ,  Takeshi Yamashita ,  Tetsushi Sakuma

Inventor： Tomohiro Fukao ,  Tsuyoshi Nozaki ,  Yoshihiro Mikuriya ,  Yoshimichi Ishikawa ,  Atsushi Yamamoto ,  Kazuoki Fuwa ,  Tomoharu Miki ,  Naoki Nakatake ,  Takeshi Yamashita ,  Tetsushi Sakuma

IPC: G03G21/00

CPC classification number: G03G21/0011 ,  G03G21/0017 ,  G03G2215/0132

Abstract: An image forming apparatus is provided which includes an image bearer, a charger, an irradiator, a developing device to develop an electrostatic latent image on the image bearer with a toner to form a toner image, a transfer device to transfer the toner image onto a transfer medium, and a cleaner to remove toner particles remaining on the image bearer without being transferred. The toner includes a mother particle including a binder resin and a colorant and one or more external additives. At least one of the external additives includes primary particles having a number average particle diameter in the range of 0.05 to 0.30 μm. The cleaner includes an elastic body blade having a contact part with the image bearer. The contact part has a surface elastic modulus in the range of 15 to 25 N/mm2 and a surface friction coefficient in the range of 0.5 to 0.7.

Abstract translation: 提供一种图像形成装置，其包括图像载体，充电器，照射器，显影装置，用调色剂显影图像载体上的静电潜像以形成调色剂图像;转印装置，用于将调色剂图像转印到 转印介质和清洁剂以除去残留在图像载体上的调色剂颗粒而不被转印。 调色剂包括包含粘合剂树脂和着色剂的母体颗粒和一种或多种外部添加剂。 外部添加剂中的至少一种包括数均粒径为0.05〜0.30μm的一次粒子。 清洁器包括具有与图像承载体的接触部分的弹性体刀片。 接触部的表面弹性模量为15〜25N / mm 2，表面摩擦系数为0.5〜0.7。

公开(公告)号：US20160033924A1

公开(公告)日：2016-02-04

申请号：US14791658

申请日：2015-07-06

Applicant: Tomohiro FUKAO ,  Tsuyoshi NOZAKI ,  Yoshihiro MIKURIYA ,  Yoshimichi ISHIKAWA ,  Atsushi YAMAMOTO ,  Kazuoki FUWA ,  Tomoharu MIKI ,  Naoki NAKATAKE ,  Takeshi YAMASHITA ,  Tetsushi SAKUMA

Inventor： Tomohiro FUKAO ,  Tsuyoshi NOZAKI ,  Yoshihiro MIKURIYA ,  Yoshimichi ISHIKAWA ,  Atsushi YAMAMOTO ,  Kazuoki FUWA ,  Tomoharu MIKI ,  Naoki NAKATAKE ,  Takeshi YAMASHITA ,  Tetsushi SAKUMA

IPC: G03G21/00

CPC classification number: G03G21/0011 ,  G03G21/0017 ,  G03G2215/0132

Abstract: An image forming apparatus is provided which includes an image bearer, a charger, an irradiator, a developing device to develop an electrostatic latent image on the image bearer with a toner to form a toner image, a transfer device to transfer the toner image onto a transfer medium, and a cleaner to remove toner particles remaining on the image bearer without being transferred. The toner includes a mother particle including a binder resin and a colorant and one or more external additives. At least one of the external additives includes primary particles having a number average particle diameter in the range of 0.05 to 0.30 μm. The cleaner includes an elastic body blade having a contact part with the image bearer. The contact part has a surface elastic modulus in the range of 15 to 25 N/mm2 and a surface friction coefficient in the range of 0.5 to 0.7.

Abstract translation: 提供一种图像形成装置，其包括图像载体，充电器，照射器，显影装置，用调色剂显影图像载体上的静电潜像以形成调色剂图像;转印装置，用于将调色剂图像转印到 转印介质和清洁剂以除去残留在图像载体上的调色剂颗粒而不被转印。 调色剂包括包含粘合剂树脂和着色剂的母体颗粒和一种或多种外部添加剂。 外部添加剂中的至少一种包括数均粒径为0.05〜0.30μm的一次粒子。 清洁器包括具有与图像承载体的接触部分的弹性体刀片。 接触部的表面弹性模量为15〜25N / mm 2，表面摩擦系数为0.5〜0.7。

公开(公告)号：US09182688B2

公开(公告)日：2015-11-10

申请号：US14089012

申请日：2013-11-25

Applicant: Takuya Kadota ,  Yoshihiro Mikuriya ,  Tsuyoshi Nozaki ,  Yoshimichi Ishikawa ,  Kazuoki Fuwa ,  Tomohiro Fukao ,  Yuta Takeuchi ,  Tomoharu Miki ,  Takayuki Nakamura ,  Naoki Nakatake ,  Yasuhide Matsuno

Inventor： Takuya Kadota ,  Yoshihiro Mikuriya ,  Tsuyoshi Nozaki ,  Yoshimichi Ishikawa ,  Kazuoki Fuwa ,  Tomohiro Fukao ,  Yuta Takeuchi ,  Tomoharu Miki ,  Takayuki Nakamura ,  Naoki Nakatake ,  Yasuhide Matsuno

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G15/08

CPC classification number: G03G9/08 ,  G03G9/0827 ,  G03G9/08782 ,  G03G9/09716 ,  G03G9/09725 ,  G03G15/0813

Abstract: An image forming apparatus, including: an electrostatic latent image bearing member; an electrostatic latent image forming unit configured to form an electrostatic latent image on the electrostatic latent image bearing member; and a developing unit containing a toner and configured to develop the electrostatic latent image with the toner to thereby form a visible image, wherein the developing unit is a contact type one-component developing unit which includes a toner bearing member being in contact with the electrostatic latent image bearing member, wherein a contact pressure between the electrostatic latent image bearing member and the toner bearing member is 2.0×104 N/m2 to 7.5×104 N/m2, wherein the toner contains a binder resin and a releasing agent, and wherein an extracted amount of the releasing agent extracted with hexane from the toner is 10 mg/g to 25 mg/g.

Abstract translation: 一种图像形成装置，包括：静电潜像承载部件; 静电潜像形成单元，被配置为在静电潜像承载部件上形成静电潜像; 以及显影单元，其包含调色剂并且被配置为利用调色剂显影静电潜像，从而形成可见图像，其中所述显影单元是接触型单组分显影单元，其包括与静电相接触的调色剂承载部件 潜像承载部件，其中所述静电潜像承载部件和所述调色剂承载部件之间的接触压力为2.0×10 4 N / m 2至7.5×10 4 N / m 2，其中所述调色剂含有粘合剂树脂和脱模剂，并且其中 从调色剂中用己烷萃取的脱模剂的提取量为10mg / g至25mg / g。

公开(公告)号：US20140147780A1

公开(公告)日：2014-05-29

申请号：US14060800

申请日：2013-10-23

Applicant: Tsuyoshi NOZAKI ,  Takuya Kadota ,  Yoshihiro Mikuriya ,  Yoshimichi Ishikawa ,  Kazuoki Fuwa ,  Tomohiro Fukao ,  Tomoharu Miki

Inventor： Tsuyoshi NOZAKI ,  Takuya Kadota ,  Yoshihiro Mikuriya ,  Yoshimichi Ishikawa ,  Kazuoki Fuwa ,  Tomohiro Fukao ,  Tomoharu Miki

IPC: G03G9/00 ,  G03G15/08

CPC classification number: G03G9/0804 ,  G03G9/0825 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09321 ,  G03G9/09371 ,  G03G9/09378 ,  G03G9/09392

Abstract: A toner is prepared by wet granulation methods, including a monoester wax having carbon atoms of from 36 to 46 on average as a release agent. The toner has a DSC endothermic energy amount (ΔH1) originating from the wax of from 10 to 12 mJ/mg and a DSC endothermic energy amount (ΔH2) originating from the wax of from 0.6 to 0.9 times as much as ΔH1 after a part of the wax is separated by hexane extraction from the toner. The hexane extraction includes mixing 1 g of the toner in 7 ml of n-hexane to prepare a mixture; stirring the mixture at 120 rpm for 1 min by a pot mill to prepare a dispersion; and subjecting the dispersion to suction filtration.

Abstract translation: 通过湿式造粒法制备调色剂，包括平均具有36至46个碳原子的单酯蜡作为脱模剂。 调色剂具有来源于10至12mJ / mg的蜡的DSC吸热能量（＆Dgr; H1）和来自蜡的DSC吸热能量（＆Dgr; H 2）为＆Dgr的0.6至0.9倍 ;一部分蜡通过己烷萃取从调色剂中分离出来。 己烷萃取包括将1g调色剂混合在7ml正己烷中以制备混合物; 用盆磨机以120rpm搅拌该混合物1分钟以制备分散体; 并对该分散体进行抽滤。

公开(公告)号：US08440380B2

公开(公告)日：2013-05-14

申请号：US12960953

申请日：2010-12-06

Applicant: Atsushi Yamamoto ,  Takuya Kadota ,  Yoshihiro Mikuriya ,  Tsuyoshi Nozaki ,  Yoshimichi Ishikawa ,  Kazuoki Fuwa ,  Tomohiro Fukao ,  Tomoharu Miki ,  Masayuki Hagi

Inventor： Atsushi Yamamoto ,  Takuya Kadota ,  Yoshihiro Mikuriya ,  Tsuyoshi Nozaki ,  Yoshimichi Ishikawa ,  Kazuoki Fuwa ,  Tomohiro Fukao ,  Tomoharu Miki ,  Masayuki Hagi

IPC: G03G9/093

CPC classification number: G03G9/09321 ,  G03G9/0804 ,  G03G9/08708 ,  G03G9/08755 ,  G03G9/08797 ,  G03G9/09371 ,  G03G9/09392

Abstract: A toner containing core particles each containing at least a resin A having a polyester skeleton and a colorant; and vinyl resin fine particles each of which encapsulates a resin B having at least a polyester skeleton and an endothermic peak measured by differential scanning calorimeter (DSC) at 40° C. to 110° C., wherein the vinyl resin fine particles are attached onto each of the core particles.

Abstract translation: 含有至少具有聚酯骨架的树脂A和着色剂的芯颗粒的调色剂; 和乙烯基树脂微粒，其各自包含至少具有聚酯骨架的树脂B和通过差示扫描量热计（DSC）在40℃至110℃测量的吸热峰，其中乙烯基树脂细颗粒附着到 每个核心颗粒。

公开(公告)号：US20130029260A1

公开(公告)日：2013-01-31

申请号：US13557568

申请日：2012-07-25

Applicant: Tsuyoshi NOZAKI ,  Tomoharu Miki ,  Tomohiro Fukao ,  Kazuoki Fuwa ,  Yoshimichi Ishikawa ,  Yoshihiro Mikuriya ,  Takuya Kadota

Inventor： Tsuyoshi NOZAKI ,  Tomoharu Miki ,  Tomohiro Fukao ,  Kazuoki Fuwa ,  Yoshimichi Ishikawa ,  Yoshihiro Mikuriya ,  Takuya Kadota

IPC: G03G9/093

CPC classification number: G03G9/0825 ,  G03G9/08706 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

Abstract: A toner including: a core particle; and fine resin particles, the core particle containing at least a binder resin, a releasing agent and a colorant, wherein the toner is in shape of particles, and each toner particle has a sea-island structure having the core particle and island portions, which are convex portions formed from the fine resin particles on surface of the core particle, wherein the binder resin contains first and second resins, and the fine resin particles are made of third resin, wherein the first resin is crystalline resin, and the second and third resins are non-crystalline resin, wherein the second resin has glass transition temperature (Tg2) and the crystalline resin has melting point (Tc1) where Tg2 is higher than Tc1, and wherein the third resin has glass transition temperature (Tg3) and the toner has glass transition temperature (Tgt) wherein Tg3 is higher than Tgt.

Abstract translation: 一种调色剂，包括：芯颗粒; 和至少含有粘合剂树脂，脱模剂和着色剂的核心颗粒的细颗粒，其中调色剂是颗粒形状，并且每个调色剂颗粒具有具有核心颗粒和岛部分的海岛结构，其中 是由芯粒子的表面上的微细树脂粒子形成的凸部，其中粘合剂树脂含有第一和第二树脂，并且细小树脂颗粒由第三树脂制成，其中第一树脂是结晶树脂，第二和第三 树脂是非结晶性树脂，其中第二树脂具有玻璃化转变温度（Tg2），并且结晶树脂具有Tg2高于Tc1的熔点（Tc1），并且其中第三树脂具有玻璃化转变温度（Tg3），并且调色剂 具有Tg3高于Tgt的玻璃化转变温度（Tgt）。

公开(公告)号：US20120237267A1

公开(公告)日：2012-09-20

申请号：US13422801

申请日：2012-03-16

Applicant: Tomohiro FUKAO ,  Takuya Kadota ,  Yoshihiro Mikuriya ,  Tsuyoshi Nozaki ,  Yoshimichi Ishikawa ,  Kazuoki Fuwa ,  Tomoharu Miki

Inventor： Tomohiro FUKAO ,  Takuya Kadota ,  Yoshihiro Mikuriya ,  Tsuyoshi Nozaki ,  Yoshimichi Ishikawa ,  Kazuoki Fuwa ,  Tomoharu Miki

IPC: G03G15/08 ,  G03G9/087 ,  B82Y30/00

CPC classification number: G03G15/08 ,  B82Y30/00 ,  G03G9/0825 ,  G03G9/093 ,  G03G9/09307 ,  G03G9/09392 ,  G03G9/097 ,  G03G9/09725

Abstract: An electrostatic image developing toner including: toner particles each containing binder resin and colorant; and an external additive supported on the toner particles, wherein the toner particles each have protrusions on surface thereof, average of lengths of long sides of the protrusions is 0.10 μm or more but less than 0.50 μm, standard deviation of the lengths of the long sides of the protrusions is 0.20 or less, coverage rate of the protrusions on the surface of each toner particle is 30% to 90%, the external additive includes at least two different particles including external additive (A) and one or more external additives (B), external additive (A) has longest average primary particle diameter among the external additives and charged to have the opposite polarity to the toner particles, and at least one of the external additives (B) is charged to have the same polarity as the toner particles.

Abstract translation: 一种静电图像显影调色剂，包括：各自含有粘合剂树脂和着色剂的调色剂颗粒; 和负载在调色剂颗粒上的外部添加剂，其中调色剂颗粒各自在其表面上具有突起，突起的长边的平均长度为0.10μm以上但小于0.50μm，长边的长度的标准偏差 的突出物的厚度为0.20以下，各调色剂颗粒表面的突起的覆盖率为30〜90％，外部添加剂包含至少2种不同的颗粒，包括外部添加剂（A）和一种或多种外部添加剂（B ），外部添加剂（A）在外部添加剂中具有最长的平均一次粒径，并且被充入具有与调色剂颗粒相反的极性，并且至少一种外部添加剂（B）被充入具有与调色剂相同的极性 粒子。

公开(公告)号：US20110053077A1

公开(公告)日：2011-03-03

申请号：US12870372

申请日：2010-08-27

Applicant: Yoshihiro MIKURIYA ,  Tomoharu Miki ,  Tomohiro Fukao ,  Kazuoki Fuwa ,  Takuya Kadota ,  Yoshimichi Ishikawa ,  Atsushi Yamamoto ,  Tsuyoshi Nozaki

Inventor： Yoshihiro MIKURIYA ,  Tomoharu Miki ,  Tomohiro Fukao ,  Kazuoki Fuwa ,  Takuya Kadota ,  Yoshimichi Ishikawa ,  Atsushi Yamamoto ,  Tsuyoshi Nozaki

IPC: G03G9/08 ,  G03G9/09 ,  G03G13/20 ,  G03G21/18

CPC classification number: G03G9/0804 ,  G03G9/0806 ,  G03G9/08702 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/09 ,  G03G2215/0604

Abstract: The present invention provides a method for producing a colored resin particle, the method including: preparing an oil phase in which at least a resin and a colorant are dissolved or dispersed in an organic solvent; preparing an aqueous phase containing at least a surfactant in an aqueous medium; dispersing the oil phase in the aqueous phase to prepare a colored particle dispersion liquid so as to form core particles; causing resin fine particles to adhere to surfaces of the core particles by adding at least the resin fine particles to the colored particle dispersion liquid, in which the core particles have been formed; removing the solvent from the colored particle dispersion liquid to obtain colored resin particles, washing the colored resin particles, and drying the colored resin particles, wherein an inorganic base is dissolved in the colored particle dispersion liquid.

Abstract translation: 本发明提供一种着色树脂颗粒的制造方法，该方法包括：制备其中至少将树脂和着色剂溶解或分散在有机溶剂中的油相; 在含水介质中制备含有至少一种表面活性剂的水相; 将油相分散在水相中以制备着色颗粒分散液，以形成核心颗粒; 通过在已形成核心颗粒的着色颗粒分散液中至少加入树脂细颗粒使树脂细颗粒附着在芯颗粒的表面上; 从着色颗粒分散液中除去溶剂，得到着色树脂颗粒，洗涤着色树脂颗粒，并干燥着色树脂颗粒，其中无机碱溶解在着色颗粒分散液中。