公开(公告)号：US20170248896A1

公开(公告)日：2017-08-31

申请号：US15329843

申请日：2015-07-17

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

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

IPC分类号： G03G21/00 ,  G03G21/18 ,  G03G9/097

CPC分类号： G03G21/0011 ,  G03G9/08 ,  G03G9/09716 ,  G03G9/09725 ,  G03G21/1814

摘要： Image forming apparatus, including: image bearer; charging unit for electrically charging image bearer surface; developing unit for developing with toner, electrostatic latent image formed over image bearer by exposure unit for performing light exposure; transfer unit for transferring developed toner to receiving member; and cleaning unit for cleaning toner remaining over image bearer without being transferred, wherein the toner contains: external additives; and base particles made of at least binder resin and colorant, external additive content of the toner is from 4 to 7 parts by mass relative to 100 parts by mass of base particles, primary particles of at least one external additive have a number average particle diameter of 0.01 to 0.05 μm, cleaning unit includes an elastic-body blade having surface elastic modulus of from 15 to 25 N/mm2 and surface friction coefficient of from 0.5 to 0.7 at an abutment part thereof abutting on image bearer.

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：US20120264048A1

公开(公告)日：2012-10-18

申请号：US13443220

申请日：2012-04-10

申请人： Yoshimichi ISHIKAWA ,  Takuya KADOTA ,  Yoshihiro MIKURIYA ,  Tsuyoshi NOZAKI ,  Kazuoki FUWA ,  Tomohiro FUKAO ,  Tomoharu MIKI ,  Atsushi YAMAMOTO

发明人： Yoshimichi ISHIKAWA ,  Takuya KADOTA ,  Yoshihiro MIKURIYA ,  Tsuyoshi NOZAKI ,  Kazuoki FUWA ,  Tomohiro FUKAO ,  Tomoharu MIKI ,  Atsushi YAMAMOTO

IPC分类号： G03G13/20 ,  G03G9/087 ,  G03G21/18

CPC分类号： G03G9/0825 ,  G03G9/0806 ,  G03G9/0827 ,  G03G9/08708 ,  G03G9/08791 ,  G03G9/08795 ,  G03G9/08797

摘要： Provided is a toner including: toner particles, each toner particle containing a toner base particle, wherein the toner contains a binder resin; and a colorant, wherein the toner base particle has protrusions at a surface thereof, wherein an average of lengths of long sides of the protrusions is 0.1 μm or more but less than 0.5 μm, a standard deviation of the lengths of the long sides of the protrusions is 0.20 or less, and a coverage rate of the protrusions is 30% to 90%, wherein a resin forming the protrusions is prepared through polymerization of a monomer mixture containing at least a monomer having a sulfonic acid group, and wherein the monomer mixture contains styrene in an amount of 90% by mass or more and the monomer having a sulfonic acid group in an amount of 0.1% by mass to 5% by mass.

摘要翻译： 提供了一种调色剂，其包括：调色剂颗粒，每个调色剂颗粒含有调色剂基础颗粒，其中调色剂含有粘合剂树脂; 和着色剂，其中所述调色剂基础颗粒在其表面具有突起，其中所述突起的长边的平均长度为0.1μm以上且小于0.5μm，所述长边的长度的标准偏差 突起为0.20以下，突起的覆盖率为30％〜90％，其中，形成突起的树脂通过至少含有具有磺酸基的单体的单体混合物的聚合而制备，其中，单体混合物 含有量为90质量％以上的苯乙烯，且具有0.1质量％〜5质量％的磺酸基的单体。

公开(公告)号：US20140147779A1

公开(公告)日：2014-05-29

申请号：US14042993

申请日：2013-10-01

申请人： Kazuoki FUWA ,  Takuya KADOTA ,  Yoshihiro MIKURIYA ,  Tsuyoshi NOZAKI ,  Yoshimichi ISHIKAWA ,  Yuta TAKEUCHI ,  Tomohiro FUKAO ,  Tomoharu MIKI ,  Takayuki NAKAMURA

发明人： Kazuoki FUWA ,  Takuya KADOTA ,  Yoshihiro MIKURIYA ,  Tsuyoshi NOZAKI ,  Yoshimichi ISHIKAWA ,  Yuta TAKEUCHI ,  Tomohiro FUKAO ,  Tomoharu MIKI ,  Takayuki NAKAMURA

IPC分类号： G03G9/00 ,  G03G15/08

CPC分类号： G03G9/08797 ,  G03G9/08755 ,  G03G9/08795 ,  G03G13/06 ,  G03G13/08

摘要： A toner is provided. The toner includes a crystalline resin and a non-crystalline resin, and has a thermal property such that when the toner is heated after being firstly heated to 60° C. followed by cooling in differential scanning calorimetry (DSC), the toner has a clear peak specific to melting of the crystalline resin at a temperature T1, and when the toner is heated after being firstly heated to 80° C. followed by cooling in the differential scanning calorimetry (DSC), the toner does not have a clear peak specific to melting of the crystalline resin at a temperature not higher than the temperature T1.

摘要翻译： 提供调色剂。 调色剂包括结晶树脂和非结晶树脂，并且具有这样的热性质，使得当调色剂首先被加热至60℃后被加热，然后在差示扫描量热法（DSC）中冷却时，调色剂具有清澈度 在温度T1下结晶树脂的熔融特异性峰值，以及在首先加热到80℃之后加热调色剂，然后在差示扫描量热法（DSC）中冷却时，调色剂不具有特定于 在不高于温度T1的温度下熔融结晶树脂。

公开(公告)号：US20110053063A1

公开(公告)日：2011-03-03

申请号：US12854487

申请日：2010-08-11

申请人： Takuya KADOTA ,  Yoshihiro MIKURIYA ,  Tsuyoshi NOZAKI ,  Atsushi YAMAMOTO ,  Yoshimichi ISHIKAWA ,  Tomohiro FUKAO ,  Tomoharu MIKI

发明人： Takuya KADOTA ,  Yoshihiro MIKURIYA ,  Tsuyoshi NOZAKI ,  Atsushi YAMAMOTO ,  Yoshimichi ISHIKAWA ,  Tomohiro FUKAO ,  Tomoharu MIKI

IPC分类号： G03G13/045 ,  G03G9/093 ,  G03G9/087 ,  G03G15/08

CPC分类号： G03G9/09385 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/09321 ,  G03G9/09378 ,  G03G9/09392 ,  G03G2215/0614

摘要： 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.

摘要翻译： 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：US20150198901A1

公开(公告)日：2015-07-16

申请号：US14573013

申请日：2014-12-17

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

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 formulae (1) and (2): ⅔≦T/Dv≦1.5   (1) ⅓≦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.

摘要翻译： 提供调色剂。 调色剂包括各自包含粘合剂树脂和脱模剂的调色剂颗粒。 调色剂颗粒的20％至80％满足下列式（1）和（2）：⅔＆nlE; T / Dv＆nlE; 1.5（1）1/3和nlE; R / Dv＆nlE; 1.0（2）其中Dv表示体积平均 调色剂颗粒的粒径; 并且T和R分别表示通过用扫描透射电子显微镜观察调色剂颗粒的横截面测量的每个调色剂颗粒和其中所含的脱模剂的最长横​​截面直径。

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：US20090297975A1

公开(公告)日：2009-12-03

申请号：US12475658

申请日：2009-06-01

申请人： Yoshimichi ISHIKAWA ,  Chiyoshi NOZAKI ,  Tsuyoshi NOZAKI ,  Takuya KADOTA ,  Katsunori KUROSE ,  Mitsuyo MATSUMOTO ,  Atsushi YAMAMOTO

发明人： Yoshimichi ISHIKAWA ,  Chiyoshi NOZAKI ,  Tsuyoshi NOZAKI ,  Takuya KADOTA ,  Katsunori KUROSE ,  Mitsuyo MATSUMOTO ,  Atsushi YAMAMOTO

IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G21/18 ,  G03G15/08 ,  G03G13/20 ,  G03G9/107

CPC分类号： G03G9/08755 ,  G03G9/0804 ,  G03G9/0806 ,  G03G9/0825 ,  G03G9/097

摘要： A toner manufactured by a method including the steps of dissolving or dispersing toner components comprising a binder resin, a colorant, and an encapsulated plasticizer to prepare an oily toner components liquid, and emulsifying or dispersing the oily toner components liquid in an aqueous medium to prepare the toner.

摘要翻译： 一种调色剂，其包括以下步骤：将包含粘合剂树脂，着色剂和包封的增塑剂的调色剂组分溶解或分散以制备油性调色剂组分液体，并将油性调色剂组分液体乳化或分散在水性介质中以制备 墨粉。

公开(公告)号：US20080233511A1

公开(公告)日：2008-09-25

申请号：US12050963

申请日：2008-03-19

申请人： Yoshimichi ISHIKAWA ,  Chiyoshi Nozaki ,  Tsuyoshi Nozaki ,  Takuya Kadota ,  Hiroyuki Murakami ,  Mitsuyo Matsumoto ,  Atsushi Yamamoto ,  Katsunori Kurose

发明人： Yoshimichi ISHIKAWA ,  Chiyoshi Nozaki ,  Tsuyoshi Nozaki ,  Takuya Kadota ,  Hiroyuki Murakami ,  Mitsuyo Matsumoto ,  Atsushi Yamamoto ,  Katsunori Kurose

IPC分类号： G03G9/00 ,  G03G15/20

CPC分类号： G03G9/08755 ,  G03G9/08764 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09783

摘要： A toner including particles including a toner composition including a binder resin and a coloring material, wherein the toner composition includes a laminate compound A in which a cation between layers is modified by an organic cation, and a laminate compound B in which an anion between layers is modified by an organic anion, the laminate compound A is of negative charging property upon particulation of the laminate compound A by dispersion or internal addition in the binder resin and the laminate compound B is of positive charging property upon particulation of the laminate compound B by dispersion or internal addition in the binder resin, and the toner is of a positive charging property.

摘要翻译： 包含包括包含粘合剂树脂和着色材料的调色剂组合物的颗粒的调色剂，其中所述调色剂组合物包括其中层间的阳离子被有机阳离子改性的层压化合物A和层间化合物B，其中层之间的阴离子 被有机阴离子改性时，叠层化合物A通过在粘合剂树脂中分散或内部添加而使叠层化合物A雾化时具有负带电性，并且叠层化合物B在叠层化合物B雾化时具有带正电性 在粘合剂树脂中分散或内部添加，并且调色剂具有正带电性。

公开(公告)号：US20200166867A1

公开(公告)日：2020-05-28

申请号：US16683534

申请日：2019-11-14

申请人： Masashi NAGAYAMA ,  Hiroyuki KISHIDA ,  Masahiro SEKI ,  Yoshimichi ISHIKAWA ,  Saori YAMADA

发明人： Masashi NAGAYAMA ,  Hiroyuki KISHIDA ,  Masahiro SEKI ,  Yoshimichi ISHIKAWA ,  Saori YAMADA

IPC分类号： G03G15/08

摘要： A carrier for forming an electrophotographic image is provided. The carrier includes a core particle comprising a manganese-based ferrite particle having an apparent density of from 2.0 to 2.2 g/cm3 and a magnetization of from 44 to 52 emu/g in a magnetic field of 500 Oe; and a coating layer coating a surface of the core particle. The coating layer contains a carbon black, an inorganic particle A, and an inorganic particle B. The inorganic particle A and the carbon black each have a concentration gradient in a thickness direction of the coating layer. A concentration of the inorganic particle A increases toward a surface of the coating layer, and a concentration of the carbon black decreases toward the surface of the coating layer.