公开(公告)号：US10451987B2

公开(公告)日：2019-10-22

申请号：US16210003

申请日：2018-12-05

Applicant: Toyoshi Sawada ,  Kazumi Suzuki ,  Yu Naito

Inventor： Toyoshi Sawada ,  Kazumi Suzuki ,  Yu Naito

IPC: G03G9/08 ,  G03G9/09 ,  G03G15/08 ,  C07F5/00 ,  G03G9/097

Abstract: A toner includes a europium complex represented by the following Chemical formula where A represents 2-naphthyl group, 2-naphthyl group having a substitution group selected from the group consisting of an alkyl group, an alkoxy group, and a halogen, R represents a fluoroalkyl group having one to three carbon atoms or a methyl group, and R1, R2, R3, and R4 each, independently represent hydrogen atoms, alkyl groups, or aryl groups, wherein the toner has a hydroxyl value of from 20 to 40 mgKOH/g.

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。

公开(公告)号：US08748071B2

公开(公告)日：2014-06-10

申请号：US12273870

申请日：2008-11-19

Applicant: Satoshi Kojima ,  Toyoshi Sawada ,  Tsuneyasu Nagatomo

Inventor： Satoshi Kojima ,  Toyoshi Sawada ,  Tsuneyasu Nagatomo

IPC: G03G9/00 ,  G03G15/08

CPC classification number: G03G9/09783 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G15/0877 ,  G03G15/0879

Abstract: To provide an image forming method including conveying a toner by means of a toner supply device that supplies the toner from inside a toner housing container into a developer housing section of a developing device with the use of a screw pump, and forming an image on a recording medium by developing a latent image on a latent image bearing member to form a toner image with the use of a developer and by transferring the toner image to the recording medium by means of a transfer device, wherein the toner is formed by adding small particle size silica to toner base particles, and wherein when A represents the average degree of circularity of the toner, and B, expressed as percent by mass, represents the amount of the small particle size silica relative to the mass of the toner base particles, the expression −18A+17.92≦B≦−34A+33.96 is satisfied.

Abstract translation: 提供一种图像形成方法，包括通过使用螺杆泵将调色剂从调色剂容纳容器内部供应到显影装置的显影剂容纳部分中的调色剂供应装置输送调色剂，并且在 记录介质，通过在潜像承载部件上显影潜像以利用显影剂形成调色剂图像，并通过转印装置将调色剂图像转印到记录介质上，其中调色剂通过加入小颗粒形成 尺寸二氧化硅与调色剂基础颗粒，并且其中当A表示调色剂的平均循环度时，以质量百分比表示的B表示相对于调色剂基础颗粒的质量的小粒径二氧化硅的量， 表达-18A + 17.92＆nlE; B＆nlE; -34A + 33.96。

公开(公告)号：US08741520B2

公开(公告)日：2014-06-03

申请号：US13000185

申请日：2009-06-17

Applicant: Toyoshi Sawada ,  Akihiro Kotsugai ,  Akiyoshi Sabu

Inventor： Toyoshi Sawada ,  Akihiro Kotsugai ,  Akiyoshi Sabu

IPC: G03G9/00

CPC classification number: G03G9/08755 ,  G03G9/08702 ,  G03G9/08753 ,  G03G9/08764 ,  G03G9/08786 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09741 ,  G03G9/09766

Abstract: The present invention provides an image forming toner including at least a linear polyester resin (b1) as a binder resin, wherein the linear polyester resin (b1) is obtained by reacting a polyester diol (b11) having a polyhydroxycarboxylic acid skeleton, with a polyester diol (b12) other than the polyester diol (b11) in the presence of a chain extending agent.

Abstract translation: 本发明提供一种成像调色剂，其至少包含作为粘合剂树脂的线性聚酯树脂（b1），其中线性聚酯树脂（b1）通过使具有聚羟基羧酸骨架的聚酯二醇（b11）与聚酯 二醇（b12），除了聚酯二元醇（b11）之外，在扩链剂的存在下进行。

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。

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。

公开(公告)号：US20130065175A1

公开(公告)日：2013-03-14

申请号：US13556549

申请日：2012-07-24

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

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

IPC: G03G9/113 ,  B82Y30/00

CPC classification number: G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1136

Abstract: 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.

Abstract translation: 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。

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

IPC: G03G9/00 ,  G03G21/18 ,  G03G15/08

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。

公开(公告)号：US08383307B2

公开(公告)日：2013-02-26

申请号：US12575804

申请日：2009-10-08

Applicant: Ryota Inoue ,  Akihiro Kotsugai ,  Toyoshi Sawada ,  Akiyoshi Sabu

Inventor： Ryota Inoue ,  Akihiro Kotsugai ,  Toyoshi Sawada ,  Akiyoshi Sabu

IPC: G03G9/00

CPC classification number: G03G9/08782 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09733

Abstract: The toner includes a binder resin; a release agent; a colorant; and a dispersing resin configured to disperse the release agent. The dispersing resin includes a polyhydroxycarboxylic acid unit obtained from an optically active monomer. The polyhydroxycarboxylic acid unit has an optical purity of not greater than 80%, wherein the optical purity is defined as the absolute value of difference between the mole percentage of a L-monomer in the optically active monomer and the mole percentage of a D-monomer in the optically active monomer.

Abstract translation: 调色剂包括粘合剂树脂; 脱模剂; 着色剂 以及配置成分散脱模剂的分散树脂。 分散树脂包括由光学活性单体获得的聚羟基羧酸单元。 聚羟基羧酸单元的光学纯度不大于80％，其中光学纯度定义为光学活性单体中L-单体的摩尔百分数与D-单体的摩尔百分比之间的绝对值 在光学活性单体中。

公开(公告)号：US20130004209A1

公开(公告)日：2013-01-03

申请号：US13526095

申请日：2012-06-18

Applicant: Hiroyuki KISHIDA ,  Shigenori Yaguchi ,  Toyoshi Sawada ,  Toyoaki Tano ,  Koichi Sakata

Inventor： Hiroyuki KISHIDA ,  Shigenori Yaguchi ,  Toyoshi Sawada ,  Toyoaki Tano ,  Koichi Sakata

IPC: G03G15/09

CPC classification number: G03G15/0921 ,  G03G9/1075 ,  G03G9/1136 ,  G03G9/1139 ,  G03G2215/0609

Abstract: A developing device including a developer container and a developer bearing member is provided. The developer container contains a two-component developer comprising toner particles and magnetic carrier particles having a ten-point average surface roughness Rz of 0.5 to 3.0 μm. The developer bearing member is a cylindrical member containing a magnetic field generator having multiple magnetic poles. The developer bearing member is adapted to bear the two-component developer on a surface thereof and to convey the two-component developer as the surface rotates. The developer bearing member has a ten-point average surface roughness Rz of 10 to 30 μm. The multiple magnetic poles include three developer bearing poles each adapted to generate a magnetic field having a strength enough for retaining the two-component developer on a surface of the developer bearing member. The three developer bearing poles consist of a developing pole, a pre-developing pole, and a post-developing pole.

Abstract translation: 提供了包括显影剂容器和显影剂承载部件的显影装置。 显影剂容器含有包含调色剂颗粒和磁性载体颗粒的双组分显影剂，其十点平均表面粗糙度Rz为0.5-3.0μm。 显影剂承载构件是包含具有多个磁极的磁场发生器的圆柱形构件。 显影剂承载构件适于在其表面上承载双组分显影剂并且在表面旋转时输送双组分显影剂。 显影剂承载部件的十点平均表面粗糙度Rz为10〜30μm。 多个磁极包括三个显影剂承载极，每个显影剂承载极适于产生具有足以将双组分显影剂保持在显影剂承载部件的表面上的强度的磁场。 三个显影轴承杆由一个显影极，一个前显影极和一个后显影极组成。