公开(公告)号：US09971260B2

公开(公告)日：2018-05-15

申请号：US15270655

申请日：2016-09-20

申请人： Tsuyoshi Nozaki ,  Yoshimichi Ishikawa ,  Tomoharu Miki ,  Yuta Takeuchi

发明人： Tsuyoshi Nozaki ,  Yoshimichi Ishikawa ,  Tomoharu Miki ,  Yuta Takeuchi

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

CPC分类号： G03G9/0825 ,  G03G9/0804 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08724 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/09733 ,  G03G15/08

摘要： A toner is provided. The toner includes toner particles each including a binder resin and a release agent. From 20% to 80% by number of the toner particles satisfy the following formula (1) and (2): 2/3≤T/Dv≤1.5  (1) 1/3≤R/Dv≤1.0  (2) wherein Dv represents a volume average particle diameter of the toner particles; and T and R represent the longest cross-sectional diameters of each toner particle and the release agent contained therein, respectively, measured by observing cross-sections of the toner particles with scanning transmission electron microscope.

公开(公告)号：US09360824B2

公开(公告)日：2016-06-07

申请号：US14791658

申请日：2015-07-06

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

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

IPC分类号： G03G21/00

CPC分类号： G03G21/0011 ,  G03G21/0017 ,  G03G2215/0132

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： G03G21/00

CPC分类号： G03G21/0011 ,  G03G21/0017 ,  G03G2215/0132

摘要： 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.

摘要翻译： 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

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

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

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

CPC分类号： G03G9/08 ,  G03G9/0827 ,  G03G9/08782 ,  G03G9/09716 ,  G03G9/09725 ,  G03G15/0813

摘要： 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.

摘要翻译： 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：US09098013B2

公开(公告)日：2015-08-04

申请号：US14259576

申请日：2014-04-23

申请人： Hideaki Yasunaga ,  Keiichiro Juri ,  Yuta Takeuchi ,  Tsuyoshi Nozaki ,  Yoshimichi Ishikawa ,  Tomoharu Miki

发明人： Hideaki Yasunaga ,  Keiichiro Juri ,  Yuta Takeuchi ,  Tsuyoshi Nozaki ,  Yoshimichi Ishikawa ,  Tomoharu Miki

IPC分类号： G03G15/08 ,  G03G21/18

CPC分类号： G03G15/0818 ,  G03G15/0865 ,  G03G21/18

摘要： A developing roller, including: a shaft containing a metal; an elastic layer on a circumference of the shaft; and a surface layer on a circumferential surface of the elastic layer, wherein the surface layer contains: a polyurethane which is a reaction product between a fluoroethylene vinyl ether copolymer and an isocyanurate form of an isocyanate; and particles having an average primary particle diameter of 5 nm to 30 nm, and wherein the polyurethane has a peak intensity ratio of a NCO group to a hydroxyl group of 5.6 to 8.8 in an infrared absorption spectrum obtained by an attenuated total reflection method.

摘要翻译： 一种显影辊，包括：含有金属的轴; 在轴的圆周上的弹性层; 以及在所述弹性层的圆周表面上的表面层，其中所述表面层包含：聚氟乙烯，其是氟乙烯乙烯基醚共聚物和异氰脲酸酯形式的异氰酸酯之间的反应产物; 平均一次粒径为5nm〜30nm的粒子，通过衰减全反射法得到的红外吸收光谱中，聚氨酯的NCO基与羟基的峰强度比为5.6〜8.8。

公开(公告)号：US20150078790A1

公开(公告)日：2015-03-19

申请号：US14484665

申请日：2014-09-12

申请人： Yoshimichi ISHIKAWA ,  Tsuyoshi NOZAKI ,  Tomoharu MIKI ,  Yuta TAKEUCHI ,  Hideaki YASUNAGA ,  Keiichiro JURI

发明人： Yoshimichi ISHIKAWA ,  Tsuyoshi NOZAKI ,  Tomoharu MIKI ,  Yuta TAKEUCHI ,  Hideaki YASUNAGA ,  Keiichiro JURI

IPC分类号： G03G15/08

CPC分类号： G03G15/0818

摘要： Provided is a developing device, including: a toner having an average circularity of from 0.880 to 0.960; and a developing roller configured to rotate while carrying the toner, wherein the developing roller has on a surface thereof, a plurality of streaky grooves each formed in a circumferential direction, and a plurality of steps each formed in a direction of a rotation axis.

摘要翻译： 提供一种显影装置，包括：平均圆形度为0.880至0.960的调色剂; 以及显影辊，其构造成在携带调色剂的同时旋转，其中所述显影辊在其表面上具有沿圆周方向形成的多个条纹槽，以及沿旋转轴线的方向形成的多个台阶。

公开(公告)号：US20140147780A1

公开(公告)日：2014-05-29

申请号：US14060800

申请日：2013-10-23

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

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

IPC分类号： G03G9/00 ,  G03G15/08

CPC分类号： G03G9/0804 ,  G03G9/0825 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09321 ,  G03G9/09371 ,  G03G9/09378 ,  G03G9/09392

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： G03G9/093

CPC分类号： G03G9/09321 ,  G03G9/0804 ,  G03G9/08708 ,  G03G9/08755 ,  G03G9/08797 ,  G03G9/09371 ,  G03G9/09392

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： G03G9/093

CPC分类号： G03G9/0825 ,  G03G9/08706 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： 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.

摘要翻译： 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

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

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

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

CPC分类号： G03G15/08 ,  B82Y30/00 ,  G03G9/0825 ,  G03G9/093 ,  G03G9/09307 ,  G03G9/09392 ,  G03G9/097 ,  G03G9/09725

摘要： 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.

摘要翻译： 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。