公开(公告)号：US08903270B2

公开(公告)日：2014-12-02

申请号：US13412195

申请日：2012-03-05

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

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

IPC: G03G15/09

CPC classification number: G03G15/0928

Abstract: 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.

Abstract translation: 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：US08778587B2

公开(公告)日：2014-07-15

申请号：US13648540

申请日：2012-10-10

Applicant: Kimitoshi Yamaguchi ,  Shigenori Yaguchi ,  Toyoshi Sawada ,  Hiroshi Tohmatsu ,  Hitoshi Iwatsuki ,  Toyoaki Tano

Inventor： Kimitoshi Yamaguchi ,  Shigenori Yaguchi ,  Toyoshi Sawada ,  Hiroshi Tohmatsu ,  Hitoshi Iwatsuki ,  Toyoaki Tano

IPC: G03G9/107 ,  G03G9/113

CPC classification number: G03G9/0819 ,  G03G9/0823 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1139

Abstract: A carrier for developing an electrostatic latent image, including a particulate core material having a magnetism having developed spontaneous magnetization; and a covering layer comprising an electroconductive material, covering the surface of the particulate core material, wherein the carrier has an electrical resistivity Log R [Ωcm] of from 8.0 to 12.0 when measured by a method, including filling the carrier in a cell containing a pair of facing electrodes, each having a surface area of 2×4 [cm2] with a gap of 2 [mm] therebetween; and applying a DC voltage of 1,000 [V] therebetween to measure a DC resistivity, and a weight-average particle diameter (Dw) of from 25 to 45 μm.

Abstract translation: 用于显影静电潜像的载体，包括具有显影自发磁化的磁性的颗粒状芯材料; 以及包括导电材料的覆盖层，其覆盖所述颗粒芯材料的表面，其中当通过包括将所述载体填充到电池中的方法测量时，所述载体具有8.0至12.0的电阻率Log R [＆OHgr; cm] 包含一对面对电极，每个面对电极的表面积为2×4 [cm 2]，间隙为2 [mm]; 在其间施加1000 [V]的直流电压，测定直流电阻率，重均粒径（Dw）为25〜45μm。

公开(公告)号：US20140113226A1

公开(公告)日：2014-04-24

申请号：US14047255

申请日：2013-10-07

Applicant: Masayuki ISHII ,  Toyoshi Sawada

Inventor： Masayuki ISHII ,  Toyoshi Sawada

IPC: G03G9/00 ,  G03G15/08

CPC classification number: G03G9/09321 ,  G03G9/09342 ,  G03G9/09371

Abstract: Toner contains a mother toner particle containing a binder resin and a coloring agent and an external additive to cover the mother toner particle, wherein the external additive contains a resin particle, wherein the resin particle has an outer shell layer formed of silica or modified silica, wherein the resin particle has a non-spherical form with a shape factor (SF) of 1.20 or greater as calculated by the following relationship 1, Shape factor(SF)=[(Absolute maximum length of particle)2/Projected area of particle)]×(π/4)  Relation 1

Abstract translation: 调色剂含有含有粘合剂树脂和着色剂的母体调色剂颗粒和外部添加剂以覆盖母体调色剂颗粒，其中外部添加剂含有树脂颗粒，其中树脂颗粒具有由二氧化硅或改性二氧化硅形成的外壳层， 其特征在于，树脂粒子的形状因子（SF）为1.20以上，通过以下关系式1，形状因子（SF）= [（粒子的绝对最大长度）2 /粒子的投影面积）计算出的非球形， ]×（＆pgr; / 4）关系1

公开(公告)号：US20140080051A1

公开(公告)日：2014-03-20

申请号：US14028665

申请日：2013-09-17

Applicant: Toyoshi SAWADA ,  Masahide YAMADA ,  Atsushi YAMAMOTO ,  Tatsuya MORITA ,  Satoyuki SEKIGUCHI ,  Keiji MAKABE ,  Kousuke NAGATA

Inventor： Toyoshi SAWADA ,  Masahide YAMADA ,  Atsushi YAMAMOTO ,  Tatsuya MORITA ,  Satoyuki SEKIGUCHI ,  Keiji MAKABE ,  Kousuke NAGATA

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/08764 ,  G03G9/0804 ,  G03G9/09314 ,  G03G9/09328 ,  G03G9/09357 ,  G03G9/09371 ,  G03G9/09392

Abstract: To provide a toner (X), which contains toner particles, each toner particle contains: a core phase (Q) containing a crystalline resin (A); and a shell phase (S) provided on a surface of the core phase (Q), where the shell phase (S) contains a crystalline polyurethane resin (B), wherein maximum peak temperature (Ta) of heat of melting of the crystalline resin (A) is 40° C. to 70° C., and maximum peak temperature (Tu) of heat of melting of the crystalline polyurethane resin (B) is 50° C. to 90° C.

Abstract translation: 为了提供含有调色剂颗粒的调色剂（X），每个调色剂颗粒包含：含有结晶性树脂（A）的芯相（Q）; 以及壳相（S），其设置在所述芯相（Q）的表面上，其中所述壳相（S）含有结晶性聚氨酯树脂（B），其中，所述结晶性树脂的熔融热的最大峰值温度（Ta） （A）为40〜70℃，结晶性聚氨酯树脂（B）的熔融热的最高峰值温度（Tu）为50〜90℃。

公开(公告)号：US20140023966A1

公开(公告)日：2014-01-23

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：US07824834B2

公开(公告)日：2010-11-02

申请号：US11855806

申请日：2007-09-14

Applicant: Junichi Awamura ,  Akinori Saitoh ,  Masahide Yamada ,  Toyoshi Sawada ,  Takuya Seshita ,  Tomomi Suzuki

Inventor： Junichi Awamura ,  Akinori Saitoh ,  Masahide Yamada ,  Toyoshi Sawada ,  Takuya Seshita ,  Tomomi Suzuki

IPC: G03G9/00

CPC classification number: G03G9/0819 ,  G03G9/0804 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09716 ,  G03G2215/0129

Abstract: A toner including a binder resin; a colorant; a release agent; and a modified layered inorganic material in which at least part of interlayer ions is modified with an organic ion, wherein the toner has a volume average particle diameter (Dv) of 3 to 7 μm and a ratio (Dv/Dn) of the volume average particle diameter (Dv) to a number average particle diameter (Dn) of the toner of 1.00 to 1.30, and wherein the release agent is included in the toner in an amount (A) of 1 to 10% by weight, and the ratio (B/A) of the amount (A) to the amount (B) of the release agent included in a classified toner in units of percent by weight is 0.7 to 1.3, wherein the classified toner satisfies the relationship (Dv′/Dn′−1)/(Dv/Dn−1)≦¾wherein Dv′ and Dn′ respectively represent the volume and number average particle diameters of the classified toner.

Abstract translation: 包含粘合剂树脂的调色剂; 着色剂 脱模剂; 和其中至少部分层间离子用有机离子改性的改性层状无机材料，其中调色剂的体积平均粒径（Dv）为3〜7μm，体积平均粒径（Dv / Dn） 调色剂的数均粒径（Dn）至1.00〜1.30的粒径（Dv），其中，调色剂中的脱模剂的含量（A）为1〜10重量％， （A）相对于分级调色剂中的脱模剂的量（B）的B / A为0.7〜1.3，其中分级调色剂满足关系式（Dv'/ Dn'- 1）/（Dv / Dn-1）＆nlE;¾其中Dv'和Dn'分别表示分级调色剂的体积和数均粒径。

公开(公告)号：US20090067876A1

公开(公告)日：2009-03-12

申请号：US12202797

申请日：2008-09-02

Applicant: Takuya SESHITA ,  Toyoshi Sawada ,  Tomomi Suzuki ,  Tsuneyasu Nagatomo ,  Satoshi Kojima

Inventor： Takuya SESHITA ,  Toyoshi Sawada ,  Tomomi Suzuki ,  Tsuneyasu Nagatomo ,  Satoshi Kojima

IPC: G03G15/00

CPC classification number: G03G21/00 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/0904 ,  G03G15/0291

Abstract: An image forming method, including charging the surface of an image bearer with a charger; irradiating the charged surface of the image bearer to form a latent image; developing the latent image with a toner to form a visible toner image; transferring the toner image onto a transfer medium directly or through an intermediate transferer; removing the toner remaining on the surface of the image bearer with a cleaning blade; applying a lubricant to the surface of the image bearer; and fixing the toner image on the transfer medium, wherein the toner is a water-granulated toner having the following properties (1) to (4):(1) a volume-average particle diameter of from 3.0 to 7.0 μm; (2) an average shape factor SF-1 of from 120 to 160; (3) an average shape factor SF-2 of from 100 to 140; and (4) a BET specific surface area of from 2.5 to 7.0 m2/g.

Abstract translation: 一种图像形成方法，包括用充电器对图像载体的表面进行充电; 照射图像载体的带电表面以形成潜像; 用调色剂显影潜影以形成可见的调色剂图像; 直接或通过中间转印器将调色剂图像转印到转印介质上; 用清洁刮板去除残留在图像载体表面上的调色剂; 对图像承载体的表面施加润滑剂; 并将调色剂图像定影在转印介质上，其中调色剂是具有以下性质（1）至（4）的水粒状调色剂：（1）体积平均粒径为3.0至7.0μm; （2）120-160的平均形状因子SF-1; （3）平均形状因子SF-2为100〜140; 和（4）BET比表面积为2.5-7.0m2 / g。

公开(公告)号：US06977129B2

公开(公告)日：2005-12-20

申请号：US10314241

申请日：2002-12-09

Applicant: Takuya Saito ,  Masanori Suzuki ,  Yohichiroh Watanabe ,  Keiko Shiraishi ,  Toyoshi Sawada ,  Tatsuhiko Osaki ,  Satoshi Aratani ,  Hiroki Ogiso

Inventor： Takuya Saito ,  Masanori Suzuki ,  Yohichiroh Watanabe ,  Keiko Shiraishi ,  Toyoshi Sawada ,  Tatsuhiko Osaki ,  Satoshi Aratani ,  Hiroki Ogiso

IPC: G03G9/10 ,  G03G9/087 ,  G03G9/09 ,  G03G9/097 ,  G03G9/08

CPC classification number: G03G9/0975 ,  G03G9/09783 ,  Y10T428/2913

Abstract: A charge control agent containing a calcium salt of a sulfoisophthalic acid compound. A toner for developing an electrostatic latent image including the above charge control agent, a binder resin and a colorant.

Abstract translation: 含有磺基间苯二甲酸化合物的钙盐的电荷控制剂。 一种用于显影包含上述电荷控制剂，粘合剂树脂和着色剂的静电潜像的调色剂。

公开(公告)号：US06830859B2

公开(公告)日：2004-12-14

申请号：US10163530

申请日：2002-06-07

Applicant: Keiko Shiraishi ,  Masanori Suzuki ,  Yohichiroh Watanabe ,  Toyoshi Sawada ,  Takuya Saito ,  Tatsuhiko Osaki ,  Satoshi Aratani ,  Hiroki Ogiso

Inventor： Keiko Shiraishi ,  Masanori Suzuki ,  Yohichiroh Watanabe ,  Toyoshi Sawada ,  Takuya Saito ,  Tatsuhiko Osaki ,  Satoshi Aratani ,  Hiroki Ogiso

IPC: G03G9097

CPC classification number: G03G9/09783 ,  G03G9/0975

Abstract: A charge control agent containing a barium salt of a sulfoisophthalic acid compound and optionally a metal salt of a salicylic acid compound. A toner for developing an electrostatic latent image comprising such a charge control agent, a binder resin and a colorant.

Abstract translation: 含有磺基间苯二甲酸化合物的钡盐和任选的水杨酸化合物的金属盐的电荷控制剂。 一种用于显影静电潜像的调色剂，包括这种电荷控制剂，粘合剂树脂和着色剂。

公开(公告)号：US06821698B2

公开(公告)日：2004-11-23

申请号：US10251855

申请日：2002-09-23

Applicant: Toyoshi Sawada ,  Masanori Suzuki ,  Yohichiroh Watanabe ,  Keiko Shiraishi ,  Takuya Saito

Inventor： Toyoshi Sawada ,  Masanori Suzuki ,  Yohichiroh Watanabe ,  Keiko Shiraishi ,  Takuya Saito

IPC: G03G9087

CPC classification number: G03G9/08755 ,  G03G9/0821 ,  G03G9/0823

Abstract: A toner for developing electrostatic latent images, including a colorant, a releasing agent and a binder resin, wherein the binder resin comprises a first, crystalline polyester resin, and a second, amorphous polyester resin having a softening point higher than that of the first polyester resin and being incompatible with the first polyester resin.

Abstract translation: 一种用于显影静电潜像的调色剂，包括着色剂，脱模剂和粘合剂树脂，其中粘合剂树脂包括第一结晶聚酯树脂和第二非织造聚酯树脂，其软化点高于第一聚酯 树脂，与第一聚酯树脂不相容。