公开(公告)号：US08652735B2

公开(公告)日：2014-02-18

申请号：US13213633

申请日：2011-08-19

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

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

IPC分类号： G03G9/00

CPC分类号： G03G15/08 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1139 ,  G03G2215/0602 ,  G03G2215/0607

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08512928B2

公开(公告)日：2013-08-20

申请号：US13226219

申请日：2011-09-06

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

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

IPC分类号： G03G9/00

CPC分类号： G03G15/08 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1139 ,  G03G2215/0607

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20120057898A1

公开(公告)日：2012-03-08

申请号：US13213633

申请日：2011-08-19

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

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

IPC分类号： G03G21/16 ,  G03G9/16 ,  G03G15/08

CPC分类号： G03G15/08 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1139 ,  G03G2215/0602 ,  G03G2215/0607

摘要： 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.

摘要翻译： 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。

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：US20120230725A1

公开(公告)日：2012-09-13

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 1 KOe 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。 显影剂容纳室包含双组分显影剂，其包括在1KOe的磁场中具有58至70emu / g的饱和磁化强度和调色剂颗粒的磁性载体颗粒，并且具有分隔件以限定上部供应室和下部集合体 房间。 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：US08652738B2

公开(公告)日：2014-02-18

申请号：US13181702

申请日：2011-07-13

申请人： Kimitoshi Yamaguchi ,  Shigenori Yaguchi ,  Hitoshi Iwatsuki ,  Mariko Takii ,  Toyoshi Sawada ,  Toyoaki Tano ,  Hiroshi Tohmatsu ,  Koichi Sakata ,  Hiroyuki Kishida ,  Saori Yamada

发明人： Kimitoshi Yamaguchi ,  Shigenori Yaguchi ,  Hitoshi Iwatsuki ,  Mariko Takii ,  Toyoshi Sawada ,  Toyoaki Tano ,  Hiroshi Tohmatsu ,  Koichi Sakata ,  Hiroyuki Kishida ,  Saori Yamada

IPC分类号： G03G13/08 ,  G03G9/00

CPC分类号： G03G9/1139 ,  G03G9/107 ,  G03G9/1136 ,  G03G2215/0609

摘要： A contact developing method including supplying a two-component developer to an electrostatic latent image on a rotating image bearing member by rotating a developing sleeve and a rotatable magnet having multiple magnetic poles provided inside the developing sleeve, to develop the electrostatic latent image into a toner image. The developing sleeve and the image bearing member rotate in the same direction while facing each other. The two-component developer comprises a non-magnetic toner and a carrier. The carrier comprises a magnetic core particle and a resin layer covering the magnetic core particle. The resin layer comprises a conductive particle and a resin. The conductive particle comprises an alumina-based material and a conductive layer covering the alumina-based material. The resin is obtained by heating a copolymer comprising a monomer A unit and a monomer B unit.

摘要翻译： 一种接触显影方法，包括通过旋转显影套筒和旋转图像承载部件上的静电潜像向设置在显影套筒内部的具有多个磁极的可旋转磁体提供双组分显影剂，以将静电潜像显影成调色剂 图片。 显影套筒和图像承载部件在相互面对的同时旋转。 双组分显影剂包括非磁性调色剂和载体。 载体包括磁芯颗粒和覆盖磁芯颗粒的树脂层。 树脂层包括导电颗粒和树脂。 导电粒子包括氧化铝基材料和覆盖氧化铝基材料的导电层。 树脂通过加热包含单体A单元和单体B单元的共聚物而获得。

公开(公告)号：US20120064451A1

公开(公告)日：2012-03-15

申请号：US13226219

申请日：2011-09-06

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

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

IPC分类号： G03G9/00 ,  G03G21/16 ,  G03G15/08

CPC分类号： G03G15/08 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1139 ,  G03G2215/0607

摘要： 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 having.

摘要翻译： 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。

公开(公告)号：US20120058423A1

公开(公告)日：2012-03-08

申请号：US13181702

申请日：2011-07-13

申请人： Kimitoshi Yamaguchi ,  Shigenori Yaguchi ,  Hitoshi Iwatsuki ,  Mariko Takii ,  Toyoshi Sawada ,  Toyoaki Tano ,  Hiroshi Tohmatsu ,  Koichi Sakata ,  Hiroyuki Kishida ,  Saori Yamada

发明人： Kimitoshi Yamaguchi ,  Shigenori Yaguchi ,  Hitoshi Iwatsuki ,  Mariko Takii ,  Toyoshi Sawada ,  Toyoaki Tano ,  Hiroshi Tohmatsu ,  Koichi Sakata ,  Hiroyuki Kishida ,  Saori Yamada

IPC分类号： G03G9/00 ,  G03G15/09

CPC分类号： G03G9/1139 ,  G03G9/107 ,  G03G9/1136 ,  G03G2215/0609

摘要： A contact developing method including supplying a two-component developer to an electrostatic latent image on a rotating image bearing member by rotating a developing sleeve and a rotatable magnet having multiple magnetic poles provided inside the developing sleeve, to develop the electrostatic latent image into a toner image. The developing sleeve and the image bearing member rotate in the same direction while facing each other. The two-component developer comprises a non-magnetic toner and a carrier. The carrier comprises a magnetic core particle and a resin layer covering the magnetic core particle. The resin layer comprises a conductive particle and a resin. The conductive particle comprises an alumina-based material and a conductive layer covering the alumina-based material. The resin is obtained by heating a copolymer comprising a monomer A unit and a monomer B unit.

摘要翻译： 一种接触显影方法，包括通过旋转显影套筒和旋转图像承载部件上的静电潜像向设置在显影套筒内部的具有多个磁极的可旋转磁体提供双组分显影剂，以将静电潜像显影成调色剂 图片。 显影套筒和图像承载部件在相互面对的同时旋转。 双组分显影剂包括非磁性调色剂和载体。 载体包括磁芯颗粒和覆盖磁芯颗粒的树脂层。 树脂层包括导电颗粒和树脂。 导电粒子包括氧化铝基材料和覆盖氧化铝基材料的导电层。 树脂通过加热包含单体A单元和单体B单元的共聚物而获得。

公开(公告)号：US09146487B2

公开(公告)日：2015-09-29

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。

公开(公告)号：US20130065175A1

公开(公告)日：2013-03-14

申请号：US13556549

申请日：2012-07-24

申请人： Koichi Sakata ,  Shigenori Yaguchi ,  Kimitoshi Yamaguchi ,  Toyoshi Sawada ,  Hiroshi Tohmatsu ,  Hiroyuki Kishida

发明人： Koichi Sakata ,  Shigenori Yaguchi ,  Kimitoshi Yamaguchi ,  Toyoshi Sawada ,  Hiroshi Tohmatsu ,  Hiroyuki Kishida

IPC分类号： G03G9/113 ,  B82Y30/00

CPC分类号： G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1136

摘要： A carrier for developing electrostatic latent image, including a core material; and a coated layer covering the core material, including a binder resin and a particulate material, wherein the core material is exposed on the surface of the carrier at an areal ratio of from 0.1 to 5.0% and has the largest exposed part having an areal ratio not greater than 0.03%, and wherein the coated layer comprises the particulate material in an amount of from 100 to 500 parts by weight per 100 parts by weight of the binder resin.

摘要翻译： 一种用于显影静电潜像的载体，包括芯材; 以及覆盖所述芯材的涂层，包括粘合剂树脂和颗粒材料，其中所述芯材料以0.1至5.0％的面积比曝露在所述载体的表面上，并且具有最大的暴露部分具有面积比 不大于0.03％，并且其中所述涂层包含每100重量份粘合剂树脂100至500重量份的颗粒材料。