公开(公告)号：US10234783B2

公开(公告)日：2019-03-19

申请号：US15568947

申请日：2016-04-28

申请人： Koichi Sakata ,  Tohru Suganuma ,  Shohichi Sugimoto ,  Hiroshi Tohmatsu ,  Hiroyuki Kishida ,  Kenichi Mashiko ,  Toyoaki Tano

发明人： Koichi Sakata ,  Tohru Suganuma ,  Shohichi Sugimoto ,  Hiroshi Tohmatsu ,  Hiroyuki Kishida ,  Kenichi Mashiko ,  Toyoaki Tano

IPC分类号： G03G9/113

摘要： A carrier including a resin layer including at least one kind of particles, wherein the at least one kind of the particles are particles of barium sulfate, wherein an amount of Ba detected is 0.3 atomic % or greater in a Ba analysis through X-ray photoelectron spectroscopy (XPS) of the carrier, and wherein circle-equivalent diameters of the particles of the barium sulfate are 400 nm or greater but 900 nm or smaller.

公开(公告)号：US10197948B2

公开(公告)日：2019-02-05

申请号：US15511291

申请日：2015-08-31

申请人： Hitoshi Iwatsuki ,  Koichi Sakata ,  Hiroshi Tohmatsu ,  Toyoaki Tano ,  Kenichi Mashiko ,  Mariko Takii ,  Hiroyuki Kishida ,  Yoshihiro Murasawa ,  Keinosuke Kondoh ,  Toshio Koike ,  Yutaka Takahashi

发明人： Hitoshi Iwatsuki ,  Koichi Sakata ,  Hiroshi Tohmatsu ,  Toyoaki Tano ,  Kenichi Mashiko ,  Mariko Takii ,  Hiroyuki Kishida ,  Yoshihiro Murasawa ,  Keinosuke Kondoh ,  Toshio Koike ,  Yutaka Takahashi

IPC分类号： G03G15/09 ,  G03G9/113 ,  G03G15/06

摘要： A developing device, including: a developer containing toner and carrier; and developer bearer configured to have surface thereof bear the developer and endlessly move, and to develop latent image over surface of latent image bearer by supplying toner in developer to latent image in developing region facing the latent image bearer, wherein carrier contains fine particles, value X in volume resistivity R (=10X) (Ω·cm) of carrier is 11.5-16.0, developer bearer includes: magnetic field generating unit including a plurality of magnetic poles; and developing sleeve having a cylindrical shape enclosing magnetic field generating unit, and configured to bear developer over outer circumferential surface of cylindrical shape by magnetic force of the magnetic field generating unit and perform surface moving by rotating relative to developing device body, and developing device includes developing sleeve voltage applying unit configured to apply AC component-containing voltage to developing sleeve.

公开(公告)号：US10054868B2

公开(公告)日：2018-08-21

申请号：US15331118

申请日：2016-10-21

申请人： Hiroyuki Kishida ,  Kenichi Mashiko ,  Mariko Takii ,  Yoshihiro Murasawa ,  Haruki Murata

发明人： Hiroyuki Kishida ,  Kenichi Mashiko ,  Mariko Takii ,  Yoshihiro Murasawa ,  Haruki Murata

IPC分类号： G03G9/113 ,  G03G9/10 ,  G03G15/08

CPC分类号： G03G9/10 ,  G03G9/1139 ,  G03G15/08

摘要： A carrier includes a core and a covering layer covering the core and including at least carbon black and a filler. The maximum height Ry of the surface of the carrier is from 4.0 μm to 5.0 μm.

公开(公告)号：US09304427B2

公开(公告)日：2016-04-05

申请号：US13927744

申请日：2013-06-26

申请人： Hitoshi Iwatsuki ,  Shigenori Yaguchi ,  Toyoaki Tano ,  Mariko Takii ,  Koichi Sakata ,  Hiroyuki Kishida ,  Hiroshi Tohmatsu

发明人： Hitoshi Iwatsuki ,  Shigenori Yaguchi ,  Toyoaki Tano ,  Mariko Takii ,  Koichi Sakata ,  Hiroyuki Kishida ,  Hiroshi Tohmatsu

IPC分类号： G03G9/113

CPC分类号： G03G9/1139 ,  G03G9/1131 ,  G03G9/1136 ,  G03G9/1137

摘要： A carrier for developing an electrostatic latent image of the present invention includes a core material and a coating layer which coats the core material, wherein the coating layer includes a resin and fine particles, wherein the coating layer has an average layer thickness difference of 0.02 μm to 3.0 μm, and wherein the carrier for developing an electrostatic latent image has an arithmetic mean surface roughness Ra1 of 0.5 μm to 0.9 μm.

摘要翻译： 本发明的静电潜像显影用载体包括芯材和涂覆芯材的涂层，其中涂层包括树脂和细颗粒，其中涂层的平均层厚度差为0.02μm 至3.0μm，并且其中用于显影静电潜像的载体具有0.5μm至0.9μm的算术平均表面粗糙度Ra1。

公开(公告)号：US09298119B2

公开(公告)日：2016-03-29

申请号：US14167468

申请日：2014-01-29

申请人： Shigenori Yaguchi ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Hiroyuki Kishida ,  Kenichi Mashiko ,  Hiroshi Tohmatsu

发明人： Shigenori Yaguchi ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Hiroyuki Kishida ,  Kenichi Mashiko ,  Hiroshi Tohmatsu

IPC分类号： G03G9/113 ,  G03G9/107 ,  G03G21/18

CPC分类号： G03G9/1075 ,  G03G9/107 ,  G03G9/1131 ,  G03G9/1135 ,  G03G9/1139 ,  G03G15/09 ,  G03G21/1803

摘要： 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%.

摘要翻译： 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％。

公开(公告)号：US08916325B2

公开(公告)日：2014-12-23

申请号：US13790347

申请日：2013-03-08

申请人： Shigenori Yaguchi ,  Hiroshi Tohmatsu ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Hiroyuki Kishida ,  Toyoaki Tano

发明人： Shigenori Yaguchi ,  Hiroshi Tohmatsu ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Hiroyuki Kishida ,  Toyoaki Tano

IPC分类号： G03G9/00 ,  G03G9/107 ,  G03G7/00 ,  G03G9/113

CPC分类号： G03G7/008 ,  G03G9/1075 ,  G03G9/1133 ,  G03G9/1136 ,  G03G9/1139

摘要： A carrier for developing electrostatic latent image, including a particulate magnetic core material; and a coated layer covering the surface of the particulate magnetic core material, wherein the coated layer includes a resin including a silicone resin and a methacrylic ester or an acrylic ester resin, and a filler including a substrate; and an electroconductive layer comprising tin dioxide (SnO2), overlying the substrate, and wherein the carrier includes tin (Sn) in an amount not less than 0.5% by atom and has a ratio (Sn/Si) of tin (Sn) to silicon (Si) of from 0.03 to 0.2 when subjected to an XPS analysis.

摘要翻译： 用于显影静电潜像的载体，包括颗粒状磁芯材料; 以及覆盖所述颗粒状磁芯材料的表面的涂层，其中所述涂层包括包含硅树脂和甲基丙烯酸酯或丙烯酸酯树脂的树脂和包含基材的填料; 以及覆盖在基板上的二氧化锡（SnO 2）的导电层，其中载体包括不小于0.5原子％的锡（Sn），并且锡（Sn）与硅（Sn）的比例（Sn / Si） （Si）为0.03〜0.2时进行XPS分析。

公开(公告)号：US08903270B2

公开(公告)日：2014-12-02

申请号：US13412195

申请日：2012-03-05

申请人： Koichi Sakata ,  Shigenori Yaguchi ,  Toyoshi Sawada ,  Hitoshi Iwatsuki ,  Hiroyuki Kishida

发明人： Koichi Sakata ,  Shigenori Yaguchi ,  Toyoshi Sawada ,  Hitoshi Iwatsuki ,  Hiroyuki Kishida

IPC分类号： G03G15/09

CPC分类号： G03G15/0928

摘要： A developing device including a developer bearing member containing a magnetic field generator having multiple magnetic poles and a developer containing chamber is provided. The developer containing chamber contains a two-component developer comprising magnetic carrier particles having a saturated magnetization of 58 to 70 emu/g in a magnetic field of 1KOe and toner particles, and has a divider to define an upper supply chamber and a lower collection chamber. The supply chamber includes a supply conveyer to supply the two-component developer to the developer bearing member at an upstream side from the developing area. The collection chamber includes a collection conveyer to collect the two-component developer from the developer bearing member at a downstream side from the developing area. The multiple magnetic poles includes three developer bearing poles capable of bearing the developer on its surface.

摘要翻译： 提供一种显影装置，其包括含有具有多个磁极的磁场发生器和显影剂容纳室的显影剂承载部件。 显影剂容纳室含有包含磁性载体颗粒的双组分显影剂，所述磁性载体颗粒在1KOe的磁场中具有58至70emu / g的饱和磁化强度和调色剂颗粒，并且具有分隔件以限定上部供应室和下部收集室 。 供给室包括供给输送器，用于在显影区域的上游侧将双组分显影剂供应到显影剂承载部件。 收集室包括收集传送器，用于在显影区域的下游侧从显影剂承载部件收集双组分显影剂。 多个磁极包括能够在其表面上承载显影剂的三个显影剂承载杆。

公开(公告)号：US20140023966A1

公开(公告)日：2014-01-23

申请号：US13932368

申请日：2013-07-01

申请人： Toyoshi SAWADA ,  Shigenori Yaguchi ,  Hiroshi Tohmatsu ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Hiroyuki Kishida ,  Yumiko Yagi

发明人： Toyoshi SAWADA ,  Shigenori Yaguchi ,  Hiroshi Tohmatsu ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Hiroyuki Kishida ,  Yumiko Yagi

IPC分类号： G03G9/113

CPC分类号： G03G9/1136 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1139

摘要： 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.

摘要翻译： 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，覆盖在所述芯材料上，其中所述覆盖层包含58-73重量％的导电性颗粒材料，并且电阻率为6.6至8.6Ωmacm， 并且其中所述载体具有相对于其在0.8KV和2.0KV的加速电压下的总面积小于1％和40至90％的面积率的高亮度对比度部分，FE-SEM反射电子图像 其表面。

公开(公告)号：US08546055B2

公开(公告)日：2013-10-01

申请号：US13063701

申请日：2009-09-02

申请人： Shinya Nakayama ,  Hisashi Nakajima ,  Saori Yamada ,  Mitsuo Aoki ,  Hyo Shu ,  Hiroyuki Kishida

发明人： Shinya Nakayama ,  Hisashi Nakajima ,  Saori Yamada ,  Mitsuo Aoki ,  Hyo Shu ,  Hiroyuki Kishida

IPC分类号： G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/081 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner containing at least a binder resin, releasing agent, and colorant, wherein the binder resin contains polyester resin (A), polyester resin (B), and polyester resin (C), which is prepared by condensation-polymerizing (i) an alcohol component containing an alkylene oxide adduct of bisphenol compound and (ii) a carboxylic acid component; at least one of the polyester resin (A) and polyester resin (B) is a polyester resin prepared by condensation-polymerizing (i) the alcohol component substantially composed of only aliphatic alcohol and containing 1,2-propanediol in an amount of 65 mole % or more of a divalent alcohol component and (ii) the carboxylic acid component; and a softening point Tm(A) of the polyester resin (A) is 10 C or more higher than Tm(B) of the polyester resin (B), and the absolute difference between Tm(C) of the polyester resin (C) and the Tm(B) is 5° C. or less.

摘要翻译： 含有至少粘合剂树脂，脱模剂和着色剂的调色剂，其中粘合剂树脂含有聚酯树脂（A），聚酯树脂（B）和聚酯树脂（C），其通过将（i） 含有双酚化合物的烯化氧加成物的醇成分和（ii）羧酸成分; 聚酯树脂（A）和聚酯树脂（B）中的至少一种是通过将（i）基本上仅由脂肪醇组成并含有65摩尔量的1,2-丙二醇的醇组分进行缩聚而制备的聚酯树脂 ％以上的二价醇成分和（ii）羧酸成分; 聚酯树脂（A）的软化点Tm（A）比聚酯树脂（B）的Tm（B）高10℃以上，聚酯树脂（C）的Tm（℃） Tm（B）为5℃以下。

公开(公告)号：US20130252169A1

公开(公告)日：2013-09-26

申请号：US13790347

申请日：2013-03-08

申请人： Shigenori Yaguchi ,  Hiroshi Tohmatsu ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Hiroyuki Kishida ,  Toyoaki Tano

发明人： Shigenori Yaguchi ,  Hiroshi Tohmatsu ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Hiroyuki Kishida ,  Toyoaki Tano

IPC分类号： G03G7/00

CPC分类号： G03G7/008 ,  G03G9/1075 ,  G03G9/1133 ,  G03G9/1136 ,  G03G9/1139

摘要： A carrier for developing electrostatic latent image, including a particulate magnetic core material; and a coated layer covering the surface of the particulate magnetic core material, wherein the coated layer includes a resin including a silicone resin and a methacrylic ester or an acrylic ester resin, and a filler including a substrate; and an electroconductive layer comprising tin dioxide (SnO2), overlying the substrate, and wherein the carrier includes tin (Sn) in an amount not less than 0.5% by atom and has a ratio (Sn/Si) of tin (Sn) to silicon (Si) of from 0.03 to 0.2 when subjected to an XPS analysis.

摘要翻译： 用于显影静电潜像的载体，包括颗粒状磁芯材料; 以及覆盖所述颗粒状磁芯材料的表面的涂层，其中所述涂层包括包含硅树脂和甲基丙烯酸酯或丙烯酸酯树脂的树脂和包含基材的填料; 以及覆盖在基板上的二氧化锡（SnO 2）的导电层，其中载体包括不小于0.5原子％的锡（Sn），并且锡（Sn）与硅（Sn）的比例（Sn / Si） （Si）为0.03〜0.2时进行XPS分析。