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公开(公告)号：US20220342332A1
公开(公告)日：2022-10-27
申请号：US17659880
申请日：2022-04-20
Applicant: Toshihiko SUGIYAMA , Junichi Watanabe , Yuka Mizoguchi , Hiroshi Yamashita , Kazuoki Fuwa , Tsuneyasu Nagatomo
Inventor： Toshihiko SUGIYAMA , Junichi Watanabe , Yuka Mizoguchi , Hiroshi Yamashita , Kazuoki Fuwa , Tsuneyasu Nagatomo
IPC: G03G9/087
Abstract: A toner includes a binding resin; and a metal crosslinking agent that forms a metal crosslinking with the binding resin. A measurement curve of a storage elastic modulus G′ in a dynamic viscoelasticity measurement has a maximum value in a range of 100° C. or more.
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公开(公告)号：US20170248896A1
公开(公告)日：2017-08-31
申请号：US15329843
申请日：2015-07-17
Applicant: Naoki NAKATAKE , Takeshi YAMASHITA , Tetsushi SAKUMA , Mitsutoshi KICHISE , Tsuyoshi NOZAKI , Yoshihiro MIKURIYA , Yoshimichi ISHIKAWA , Atsushi YAMAMOTO , Kazuoki FUWA , Tomohiro FUKAO , Tomoharu MIKI
Inventor： Naoki NAKATAKE , Takeshi YAMASHITA , Tetsushi SAKUMA , Mitsutoshi KICHISE , Tsuyoshi NOZAKI , Yoshihiro MIKURIYA , Yoshimichi ISHIKAWA , Atsushi YAMAMOTO , Kazuoki FUWA , Tomohiro FUKAO , Tomoharu MIKI
CPC classification number: G03G21/0011 , G03G9/08 , G03G9/09716 , G03G9/09725 , G03G21/1814
Abstract: 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.
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3.发明授权公开(公告)号：US09709912B2
公开(公告)日：2017-07-18
申请号：US14042993
申请日：2013-10-01
Applicant: Kazuoki Fuwa , Takuya Kadota , Yoshihiro Mikuriya , Tsuyoshi Nozaki , Yoshimichi Ishikawa , Yuta Takeuchi , Tomohiro Fukao , Tomoharu Miki , Takayuki Nakamura
Inventor： Kazuoki Fuwa , Takuya Kadota , Yoshihiro Mikuriya , Tsuyoshi Nozaki , Yoshimichi Ishikawa , Yuta Takeuchi , Tomohiro Fukao , Tomoharu Miki , Takayuki Nakamura
CPC classification number: G03G9/08797 , G03G9/08755 , G03G9/08795 , G03G13/06 , G03G13/08
Abstract: 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.
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公开(公告)号：US20140038095A1
公开(公告)日：2014-02-06
申请号：US14112407
申请日：2012-04-25
Applicant: Yoshimichi Ishikawa , Takuya Kadota , Yoshihiro Mikuriya , Tsuyoshi Nozaki , Kazuoki Fuwa , Tomohiro Fukao , Tomoharu Miki
Inventor： Yoshimichi Ishikawa , Takuya Kadota , Yoshihiro Mikuriya , Tsuyoshi Nozaki , Kazuoki Fuwa , Tomohiro Fukao , Tomoharu Miki
CPC classification number: G03G9/0825 , G03G9/0804 , G03G9/0806 , G03G9/0819 , G03G9/0827 , G03G9/08708 , G03G9/09307 , G03G9/09321 , G03G9/09392 , G03G9/09716
Abstract: A toner including: toner particles each including a toner base particle and an external additive attached thereon, where the toner base particle includes a binder resin and a colorant, wherein the toner base particles each have protrusions on a surface thereof, an average of lengths of long sides of the protrusions is 0.10 μm or more but less than 0.50 μm, a standard deviation of the lengths of the long sides of the protrusions is 0.2 or less, a coverage rate of the protrusions on the surface of the toner base particle is 10% to 90%, and the external additive includes fine inorganic particles whose surfaces have been treated with an amino group-containing silane coupling agent.
Abstract translation: 一种调色剂，包括：各自包含调色剂基础颗粒和附着在其上的外部添加剂的调色剂颗粒，其中调色剂基础颗粒包含粘合剂树脂和着色剂，其中调色剂基础颗粒在其表面上各具有突起，其平均长度 突起的长边为0.10μm以上且小于0.50μm，突起的长边的长度的标准偏差为0.2以下，调色剂母粒表面的突起的覆盖率为10 ％〜90％，外部添加剂包括表面已经用含氨基的硅烷偶联剂处理的无机微粒。
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5.发明授权公开(公告)号：US08518625B2
公开(公告)日：2013-08-27
申请号：US13113576
申请日：2011-05-23
Applicant: Tomohiro Fukao , Takuya Kadota , Chieko Yamazaki , Yoshihiro Mikuriya , Tsuyoshi Nozaki , Yoshimichi Ishikawa , Atsushi Yamamoto , Kazuoki Fuwa , Tomoharu Miki
Inventor： Tomohiro Fukao , Takuya Kadota , Chieko Yamazaki , Yoshihiro Mikuriya , Tsuyoshi Nozaki , Yoshimichi Ishikawa , Atsushi Yamamoto , Kazuoki Fuwa , Tomoharu Miki
IPC: G03G9/087
CPC classification number: G03G9/0825 , G03G9/0804 , G03G9/08708 , G03G9/08726 , G03G9/08755 , G03G9/08797 , G03G9/09733
Abstract: An electrostatic image developing toner including toner core particles each containing at least a first resin and a colorant, and fine resin particles formed of a second resin, wherein part of each of the fine resin particles is embedded in each of the toner core particles, and the remaining part of the fine resin particle is exposed on a surface of the toner core particle to form a protrusion, and wherein when a rate of the part of the fine resin particle to the fine resin particle is indicated by an embedment rate, an average of the embedment rates in the fine resin particles is 40% to 80%.
Abstract translation: 一种静电图像显影调色剂，其包含各自含有至少第一树脂和着色剂的调色剂芯颗粒和由第二树脂形成的细小树脂颗粒，其中每个微粒树脂颗粒的一部分嵌入每个调色剂核颗粒中，以及 在调色剂芯颗粒的表面上露出剩余部分的细树脂颗粒以形成突起，并且当树脂微粒的一部分与细树脂颗粒的比率以嵌入率表示时，平均值 的树脂微粒中的嵌入率为40％〜80％。
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Patent Agency Ranking
6.发明申请公开(公告)号：US20120237253A1
公开(公告)日：2012-09-20
申请号：US13417741
申请日：2012-03-12
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
CPC classification number: G03G21/18 , G03G9/0935 , G03G9/09371 , G03G9/09392
Abstract: An electrostatic image developing toner including: toner particles; wherein the toner particles each contain: a core particle including a first resin and a colorant; and fine resin particles each formed of a second resin and existing in a surface of the core particle, wherein part of each fine resin particle is embedded in the core particle to form an embedded region, and the remaining part of the fine resin particle is exposed on the surface of the core particle to form an exposed region, and wherein each toner particle satisfies an expression of R1>R1′ where, in a cross-section of the toner particle, R1′ denotes an average diameter of openings of the first resin in which the second resin is embedded and R1 denotes an average diameter of the exposed regions.
Abstract translation: 一种静电图像显影调色剂，包括：调色剂颗粒; 其中所述调色剂颗粒各自包含：包含第一树脂和着色剂的芯颗粒; 以及由芯粒子的表面存在的第二树脂形成的细小树脂粒子，其中，每个细树脂粒子的一部分嵌入在核心粒子中，形成嵌入区域，其余部分的树脂微粒暴露 在芯颗粒的表面上形成暴露区域，并且其中每个调色剂颗粒满足R1> R1'的表达式，其中在调色剂颗粒的横截面中，R1'表示第一树脂的开口的平均直径 其中嵌入第二树脂，R1表示暴露区域的平均直径。
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7.发明申请TONER, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD AND PROCESS CARTRIDGE 审中-公开调色剂，图像形成装置，图像形成方法和过程盒公开(公告)号：US20120219321A1
公开(公告)日：2012-08-30
申请号：US13504771
申请日：2010-10-27
Applicant: Tomohiro Fukao , Takuya Kadota , Yoshihiro Mikuriya , Tsuyoshi Nozaki , Yoshimichi Ishikawa , Atsushi Yamamoto , Tomoharu Miki , Kazuoki Fuwa
Inventor： Tomohiro Fukao , Takuya Kadota , Yoshihiro Mikuriya , Tsuyoshi Nozaki , Yoshimichi Ishikawa , Atsushi Yamamoto , Tomoharu Miki , Kazuoki Fuwa
CPC classification number: G03G9/08797 , G03G9/0804 , G03G9/0806 , G03G9/0819 , G03G9/0825 , G03G9/0827 , G03G9/08708 , G03G9/08795 , G03G9/09307
Abstract: A toner including a binder resin, a colorant and protruding portions on a surface of the toner, wherein the average length of long sides of the protruding portions is 0.1 μm or greater, but less than 0.5 μm, wherein the standard deviation of the lengths of the long sides of the protruding portions is 0.2 or less, and wherein the protruding portions have a coverage of 30% to 90%.
Abstract translation: 一种调色剂，包括粘合剂树脂，着色剂和调色剂表面上的突出部分，其中突出部分的长边的平均长度为0.1μm以上但小于0.5μm，其中，长度的标准偏差 突出部的长边为0.2以下，突出部的覆盖率为30％〜90％。
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8.发明申请公开(公告)号：US20110287356A1
公开(公告)日：2011-11-24
申请号：US13113576
申请日：2011-05-23
Applicant: Tomohiro Fukao , Takuya Kadota , Chieko Yamazaki , Yoshihiro Mikuriya , Tsuyoshi Nozaki , Yoshimichi Ishikawa , Atsushi Yamamoto , Kazuoki Fuwa , Tomoharu Miki
Inventor： Tomohiro Fukao , Takuya Kadota , Chieko Yamazaki , Yoshihiro Mikuriya , Tsuyoshi Nozaki , Yoshimichi Ishikawa , Atsushi Yamamoto , Kazuoki Fuwa , Tomoharu Miki
CPC classification number: G03G9/0825 , G03G9/0804 , G03G9/08708 , G03G9/08726 , G03G9/08755 , G03G9/08797 , G03G9/09733
Abstract: An electrostatic image developing toner including toner core particles each containing at least a first resin and a colorant, and fine resin particles formed of a second resin, wherein part of each of the fine resin particles is embedded in each of the toner core particles, and the remaining part of the fine resin particle is exposed on a surface of the toner core particle to form a protrusion, and wherein when a rate of the part of the fine resin particle to the fine resin particle is indicated by an embedment rate, an average of the embedment rates in the fine resin particles is 40% to 80%.
Abstract translation: 一种静电图像显影调色剂，其包含各自含有至少第一树脂和着色剂的调色剂芯颗粒和由第二树脂形成的细小树脂颗粒，其中每个微粒树脂颗粒的一部分嵌入每个调色剂核颗粒中，以及 在调色剂芯颗粒的表面上露出剩余部分的细树脂颗粒以形成突起，并且当树脂微粒的一部分与细树脂颗粒的比率以嵌入率表示时，平均值 的树脂微粒中的嵌入率为40％〜80％。
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公开(公告)号：US08041270B2
公开(公告)日：2011-10-18
申请号：US12048865
申请日：2008-03-14
Applicant: Hideaki Yasunaga , Masayuki Hagi , Yoshihiro Mikuriya , Hiroaki Katoh , Kazuoki Fuwa , Masahide Inoue , Yoshitaka Sekiguchi , Satoshi Ogawa
Inventor： Hideaki Yasunaga , Masayuki Hagi , Yoshihiro Mikuriya , Hiroaki Katoh , Kazuoki Fuwa , Masahide Inoue , Yoshitaka Sekiguchi , Satoshi Ogawa
IPC: G03G15/08
CPC classification number: G03G15/0818 , G03G2215/0617
Abstract: An image developer using a one-component developer, Including a developing roller visualizing an electrostatic latent image formed on an image bearer with a pulverized toner; and a feed roller feeding the pulverized toner to the developing roller while contacting thereto, wherein the pulverized toner includes a parent toner; a wax; and an external additive comprising an additive having a number-average particle diameter of from 20 to 60 nm and adhering to the surface of the parent toner at an adherence strength of from 50 to 70%, and wherein the following relationships (1) to (3) are satisfied: 4.70
Abstract translation: 使用单组分显影剂的图像显影剂包括利用粉碎的调色剂使形成在图像载体上的静电潜像可视化的显影辊; 以及将粉碎的调色剂供给到显影辊同时接触的进料辊，其中所述粉碎的调色剂包括母体调色剂; 蜡 以及外加剂，其包含数均粒径为20〜60nm的添加剂，并以50〜70％的粘附强度附着在母体调色剂的表面，并且其中以下关系式（1）〜（ 3）满足：4.70
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公开(公告)号：US07979010B2
公开(公告)日：2011-07-12
申请号：US12342656
申请日：2008-12-23
Applicant: Kazuoki Fuwa , Yoshihiro Mikuriya , Hideaki Yasunaga , Yoshitaka Sekiguchi , Hiroaki Kato
Inventor： Kazuoki Fuwa , Yoshihiro Mikuriya , Hideaki Yasunaga , Yoshitaka Sekiguchi , Hiroaki Kato
CPC classification number: G03G15/0808 , G03G9/0819 , G03G9/08782 , G03G9/08795 , G03G9/08797 , G03G15/0818 , G03G2215/0607
Abstract: Provided is an image forming apparatus including at least a latent image bearing member, a latent electrostatic image forming unit, a developing unit which includes at least a developing roller and a supply roller, and a transfer unit, wherein both of a diameter R (mm) of the developing roller and a diameter R′ (mm) of the supply roller are 12 mm or less; the toner contains at least a binder resin, a wax, and a colorant with the wax having a melting point of 75° C. or less; an amount of the wax exposed on a surface of the toner is 10 mg/g to 30 mg/g; and when a diameter (mm) of the developing roller is represented by R the toner has a torque T (mNm) satisfying the inequation, 20/R
Abstract translation: 提供了一种图像形成装置，其至少包括潜像承载部件，静电潜像形成单元，至少包括显影辊和供给辊的显影单元和转印单元，其中直径R（mm ）和供给辊的直径R'（mm）为12mm以下; 调色剂至少含有粘合剂树脂，蜡和着色剂，蜡的熔点为75℃以下; 在调色剂表面上露出的蜡的量为10mg / g至30mg / g; 并且当显影辊的直径（mm）由R表示时，调色剂具有满足不等式20 / R
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