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公开(公告)号：US10444651B2
公开(公告)日：2019-10-15
申请号：US15911443
申请日：2018-03-05
Applicant: Mariko Takii , Koichi Sakata , Tohru Suganuma , Masahiro Seki , Masashi Nagayama , Toyoaki Tano , Kohsuke Miyazaki
Inventor： Mariko Takii , Koichi Sakata , Tohru Suganuma , Masahiro Seki , Masashi Nagayama , Toyoaki Tano , Kohsuke Miyazaki
Abstract: A carrier is provided including a core particle and a resin layer coating the surface of the core particle. The resin layer includes fine metal particles, and a detected metal element amount A obtained by X-ray photoelectron spectrometry of the surface of the carrier is in a range of 4.0 atomic %≤A≤20.0 atomic % and an average major-axis length B of the fine metal particle exposing from the resin layer is in a range of 100 nm≤B≤800 nm.
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公开(公告)号：US09989874B2
公开(公告)日：2018-06-05
申请号：US15449572
申请日：2017-03-03
Applicant: Yoshihiro Murasawa , Toyoaki Tano , Hiroyuki Kishida , Masato Taikoji , Kenichi Mashiko , Mariko Takii , Haruki Murata
Inventor： Yoshihiro Murasawa , Toyoaki Tano , Hiroyuki Kishida , Masato Taikoji , Kenichi Mashiko , Mariko Takii , Haruki Murata
CPC classification number: G03G9/1075 , G03G9/0819 , G03G9/08755 , G03G9/091 , G03G9/0926 , G03G9/107 , G03G9/1131 , G03G9/1133 , G03G9/1136 , G03G9/1139 , G03G15/08 , G03G2215/0607
Abstract: A carrier for developing electrostatic latent images is provided. The carrier includes a magnetic core particle and a resin layer coating a surface of the magnetic core particle. The resin layer includes a particulate material A having a volume average particle diameter (a) and a particulate material B having a volume average particle diameter (b). The volume average particle diameter (a) of the particulate material A is the largest among volume average particle diameters of all particulate materials included in the resin layer, and an inequation 100≥(a)/(b)≥5 is satisfied. The particulate material A is barium sulfate.
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公开(公告)号：US20170269497A1
公开(公告)日：2017-09-21
申请号：US15449572
申请日：2017-03-03
Applicant: Yoshihiro MURASAWA , Toyoaki TANO , Hiroyuki KISHIDA , Masato TAIKOJI , Kenichi MASHIKO , Mariko TAKII , Haruki MURATA
Inventor： Yoshihiro MURASAWA , Toyoaki TANO , Hiroyuki KISHIDA , Masato TAIKOJI , Kenichi MASHIKO , Mariko TAKII , Haruki MURATA
CPC classification number: G03G9/1075 , G03G9/0819 , G03G9/08755 , G03G9/091 , G03G9/0926 , G03G9/107 , G03G9/1131 , G03G9/1133 , G03G9/1136 , G03G9/1139 , G03G15/08 , G03G2215/0607
Abstract: A carrier for developing electrostatic latent images is provided. The carrier includes a magnetic core particle and a resin layer coating a surface of the magnetic core particle. The resin layer includes a particulate material A having a volume average particle diameter (a) and a particulate material B having a volume average particle diameter (b). The volume average particle diameter (a) of the particulate material A is the largest among volume average particle diameters of all particulate materials included in the resin layer, and an inequation 100≧(a)/(b)≧5 is satisfied. The particulate material A is barium sulfate.
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公开(公告)号：US20170205721A1
公开(公告)日：2017-07-20
申请号：US15397522
申请日：2017-01-03
Applicant: Yoshihiro MURASAWA , Koichi SAKATA , Masashi NAGAYAMA , Toyoaki TANO , Hiroyuki KISHIDA
Inventor： Yoshihiro MURASAWA , Koichi SAKATA , Masashi NAGAYAMA , Toyoaki TANO , Hiroyuki KISHIDA
IPC: G03G9/00
CPC classification number: G03G9/0831 , G03G9/1075 , G03G9/1136 , G03G9/1137 , G03G9/1139 , G03G15/08 , G03G15/0808 , G03G2215/0607
Abstract: A carrier is provided. The carrier includes a magnetic core particle and a resin layer coating a surface of the magnetic core particle. The resin layer includes a resin, a conductive particle including tungsten tin oxide, and a chargeable filler.
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5.发明授权Carrier, two-component developer, supplemental developer, image forming method, process cartridge and image forming apparatus 有权载体，双组分显影剂，补充显影剂，成像方法，处理盒和成像装置公开(公告)号：US09519234B2
公开(公告)日：2016-12-13
申请号：US14410711
申请日：2013-06-26
Applicant: Hiroyuki Kishida , Shigenori Yaguchi , Hiroshi Tohmatsu , Koichi Sakata , Hitoshi Iwatsuki , Toyoaki Tano
Inventor： Hiroyuki Kishida , Shigenori Yaguchi , Hiroshi Tohmatsu , Koichi Sakata , Hitoshi Iwatsuki , Toyoaki Tano
CPC classification number: G03G9/0839 , G03G9/1075 , G03G9/1139 , G03G21/18 , H01F1/01
Abstract: There is provided a carrier including magnetic core particles; and a coating layer on a surface of each of the magnetic core particles, wherein the coating layer contains electroconductive particles; wherein the electroconductive particles are electroconductive particles in which white inorganic pigments are coated with phosphorus-doped tin or tungsten-doped tin; and wherein a dope ratio of phosphorus or tungsten to tin in the phosphorus-doped tin or tungsten-doped tin is 0.010 to 0.100.
Abstract translation: 提供了包括磁芯颗粒的载体; 以及每个所述磁芯颗粒的表面上的涂层，其中所述涂层含有导电颗粒; 其中导电颗粒是导电颗粒，其中白色无机颜料用磷掺杂锡或掺杂钨的锡涂覆; 并且其中磷掺杂锡或掺杂钨的锡中磷或钨与锡的掺杂比为0.010至0.100。
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Patent Agency Ranking
6.发明授权Carrier for developing electrostatic latent image, and electrostatic latent image developer 有权用于显影静电潜像的载体和静电潜像显影剂公开(公告)号：US09146487B2
公开(公告)日：2015-09-29
申请号：US13932368
申请日：2013-07-01
Applicant: Toyoshi Sawada , Shigenori Yaguchi , Hiroshi Tohmatsu , Hitoshi Iwatsuki , Toyoaki Tano , Hiroyuki Kishida , Yumiko Yagi
Inventor： Toyoshi Sawada , Shigenori Yaguchi , Hiroshi Tohmatsu , Hitoshi Iwatsuki , Toyoaki Tano , Hiroyuki Kishida , Yumiko Yagi
IPC: G03G9/113
CPC classification number: G03G9/1136 , G03G9/1131 , G03G9/1133 , G03G9/1139
Abstract: A carrier for developing electrostatic latent images includes a core material; and a covering layer formed of a resin comprising an electroconductive particulate material, overlying the core material, wherein the covering layer includes the electroconductive particulate material in an amount of from 58 to 73% by weight and has a resistivity of from 6.6 to 8.6 Ωcm, and wherein the carrier has a high-brightness contrast part at an areal ratio less than 1% and 40 to 90% based on total area thereof at an acceleration voltage of 0.8 KV and 2.0 KV, respectively in an FE-SEM reflection electron image of the surface thereof.
Abstract translation: 用于显影静电潜像的载体包括芯材料; 以及由包括导电性颗粒材料的树脂形成的覆盖层，覆盖在所述芯材上，其中所述覆盖层包含58-73重量％的导电性颗粒材料，其电阻率为6.6〜8.6重量％。 cm，并且其中载体具有在FE-SEM反射电子中分别在0.8KV和2.0KV的加速电压下的总面积小于1％和40至90％的面积比的高亮度对比度部分 其表面的图像。
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7.发明申请CARRIER FOR TWO-COMPONENT DEVELOPER, TWO-COMPONENT DEVELOPER USING THE CARRIER, AND IMAGE FORMING METHOD AND PROCESS CARTRIDGE USING THE TWO-COMPONENT DEVELOPER 有权两组件开发商的承运人，使用承运人的两个组件开发商，以及使用两个组件开发商的图像形成方法和过程库公开(公告)号：US20140248557A1
公开(公告)日：2014-09-04
申请号：US14167468
申请日：2014-01-29
Applicant: Shigenori Yaguchi , Koichi Sakata , Hitoshi Iwatsuki , Toyoaki Tano , Hiroyuki Kishida , Kenichi Mashiko , Hiroshi Tohmatsu
Inventor： Shigenori Yaguchi , Koichi Sakata , Hitoshi Iwatsuki , Toyoaki Tano , Hiroyuki Kishida , Kenichi Mashiko , Hiroshi Tohmatsu
CPC classification number: G03G9/1075 , G03G9/107 , G03G9/1131 , G03G9/1135 , G03G9/1139 , G03G15/09 , G03G21/1803
Abstract: A carrier is provided. The carrier includes a particulate magnetic core, and a cover layer located on the surface of the particulate magnetic core and including a resin and a filler. When determined from observation of cross-section of the carrier, the shape factor SF2 of the carrier is from 120 to 160, the ratio of the average domain diameter of the particulate magnetic core to the number average particle diameter of the filler is from 1:1 to 1:0.003, and the area ratio of the filler in the cover layer is from 30 to 85%.
Abstract translation: 提供载体。 载体包括颗粒状磁芯和位于颗粒状磁芯的表面上并包括树脂和填料的覆盖层。 当从载体的横截面观察确定时，载体的形状因子SF2为120〜160，颗粒状磁心的平均畴直径与填料的数均粒径的比为1： 1〜1：0.003，覆盖层中填料的面积比为30〜85％。
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8.发明授权Carrier, developer, method of manufacturing carrier, developer container, image forming method, process cartridge, image forming apparatus, and supplemental developer 有权载体，显影剂，制造载体的方法，显影剂容器，成像方法，处理盒，成像装置和补充显影剂公开(公告)号：US08652735B2
公开(公告)日：2014-02-18
申请号：US13213633
申请日：2011-08-19
Applicant: Koichi Sakata , Shigenori Yaguchi , Toyoshi Sawada , Kimitoshi Yamaguchi , Hitoshi Iwatsuki , Hiroshi Tohmatsu , Hiroyuki Kishida , Toyoaki Tano , Mariko Takii
Inventor： Koichi Sakata , Shigenori Yaguchi , Toyoshi Sawada , Kimitoshi Yamaguchi , Hitoshi Iwatsuki , Hiroshi Tohmatsu , Hiroyuki Kishida , Toyoaki Tano , Mariko Takii
IPC: G03G9/00
CPC classification number: G03G15/08 , G03G9/1131 , G03G9/1133 , G03G9/1139 , G03G2215/0602 , G03G2215/0607
Abstract: A carrier including a magnetic core particle and a resin layer covering a surface of the magnetic core particle. The magnetic core particle is a ferrite particle including strontium in an amount of 0.005 to 3% by mass, measured by fluorescent X-ray spectroscopy. The resin layer comprises a resin obtained by heating a copolymer comprising a silicon-containing unit A and another silicon-containing specific unit B.
Abstract translation: 包括磁芯颗粒和覆盖磁芯颗粒表面的树脂层的载体。 磁芯颗粒是通过荧光X射线光谱法测量的包含0.005〜3质量％的锶的铁氧体颗粒。 树脂层包括通过加热包含含硅单元A和另一种含硅特定单元B的共聚物而获得的树脂。
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9.发明授权公开(公告)号：US08512928B2
公开(公告)日：2013-08-20
申请号：US13226219
申请日：2011-09-06
Applicant: Hiroyuki Kishida , Shigenori Yaguchi , Kimitoshi Yamaguchi , Toyoshi Sawada , Hiroshi Tohmatsu , Koichi Sakata , Hitoshi Iwatsuki , Toyoaki Tano , Mariko Takii
Inventor： Hiroyuki Kishida , Shigenori Yaguchi , Kimitoshi Yamaguchi , Toyoshi Sawada , Hiroshi Tohmatsu , Koichi Sakata , Hitoshi Iwatsuki , Toyoaki Tano , Mariko Takii
IPC: G03G9/00
CPC classification number: G03G15/08 , G03G9/1075 , G03G9/1131 , G03G9/1133 , G03G9/1139 , G03G2215/0607
Abstract: A carrier comprising a magnetic core particle having a shape factor SF-2 of 130 to 160 and a resin layer covering a surface of the magnetic core particle. The resin layer comprises a conductive particle and a resin obtained by heating a copolymer comprising a silicon-containing A unit and another silicon-containing B unit.
Abstract translation: 一种载体，其包含具有130至160的形状系数SF-2的磁芯颗粒和覆盖该磁芯颗粒的表面的树脂层。 树脂层包括导电颗粒和通过加热包含含硅A单元和另一含硅B单元的共聚物而获得的树脂。
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10.发明申请LATENT ELECTROSTATIC IMAGE DEVELOPING CARRIER, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS 有权专利静电图像发展载体，工艺盒和图像形成装置公开(公告)号：US20130065171A1
公开(公告)日：2013-03-14
申请号：US13592626
申请日：2012-08-23
Applicant: Shigenori Yaguchi , Kimitoshi Yamaguchi , Toyoshi Sawada , Hitoshi Iwatsuki , Toyoaki Tano , Hiroshi Tohmatsu
Inventor： Shigenori Yaguchi , Kimitoshi Yamaguchi , Toyoshi Sawada , Hitoshi Iwatsuki , Toyoaki Tano , Hiroshi Tohmatsu
CPC classification number: G03G9/1075 , G03G9/1131 , G03G9/1136 , G03G9/1139 , G03G15/0806
Abstract: A latent electrostatic image developing carrier including: core particles each having magnetism; and a coating layer covering each of the core particles, wherein the latent electrostatic image developing carrier has a shape factor SF-2 of 115 to 150 and has a bulk density of 1.8 g/cm3 to 2.4 g/cm3, wherein the core particles have a shape factor SF-2 of 120 to 160 and have an arithmetic mean surface roughness Ra of 0.5 μm to 1.0 μm, and wherein the coating layer contains a resin and a filler and an amount of the filler contained in the coating layer is 50 parts by mass to 500 parts by mass per 100 parts by mass of the resin contained in the coating layer.
Abstract translation: 一种静电潜像显影载体，包括：具有磁性的核心颗粒; 以及覆盖每个核心颗粒的涂层，其中所述静电潜像显影载体的形状因子SF-2为115〜150，体积密度为1.8g / cm 3至2.4g / cm 3，其中所述核心颗粒具有 形状因子SF-2为120〜160，算术平均表面粗糙度Ra为0.5μm〜1.0μm，其中涂层含有树脂和填料，涂层中含有的填料量为50份 以质量计500质量份/ 100质量份包含在涂层中的树脂。
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