公开(公告)号：US06312862B1

公开(公告)日：2001-11-06

申请号：US09434401

申请日：1999-11-05

申请人： Kenji Okado ,  Ryoichi Fujita ,  Yushi Mikuriya ,  Shinya Yachi ,  Kazumi Yoshizaki

发明人： Kenji Okado ,  Ryoichi Fujita ,  Yushi Mikuriya ,  Shinya Yachi ,  Kazumi Yoshizaki

IPC分类号： G03G9113

CPC分类号： G03G9/097 ,  G03G9/0819 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113

摘要： A two-component type developer has a negatively chargeable toner having toner particles and an external additive and a magnetic-fine-particle-dispersed resin carrier. The magnetic-fine-particle-dispersed resin carrier has composite particles containing at least inorganic compound particles and a binder resin. The inorganic compound particles have been surface-treated with a lipophilic-treating agent having at least one type of functional group (A) selected from the group consisting of an epoxy group, an amino group, a mercapto group, an organic acid group, an ester group, a ketone group, an alkyl halide group and an aldehyde group, or a mixture of the agent. The composite particles have been surface-coated with at least one type of coupling agent having at least one type of functional group (B) different from the functional group (A) the lipophilic-treating agent. The functional group (B) the coupling agent has being a functional group or groups selected from the group consisting of an epoxy group, an amino group and a mercapto group. The negatively chargeable toner has a weight-average particle diameter of from 3 &mgr;m to 9 &mgr;m.

摘要翻译： 双组分型显影剂具有带负电荷的调色剂，其具有调色剂颗粒和外部添加剂和磁性微粒分散树脂载体。 磁性粒子分散树脂载体具有至少含有无机化合物粒子和粘合剂树脂的复合粒子。 无机化合物颗粒已经用具有至少一种选自环氧基，氨基，巯基，有机酸基，官能团（A）中的至少一种官能团（A）的亲脂性处理剂进行表面处理 酯基，酮基，烷基卤基和醛基，或者该试剂的混合物。 复合颗粒已经用至少一种类型的具有至少一种类型的官能团（B）的不同于亲脂性处理剂的官能团（A）的偶联剂进行表面涂覆。 官能团（B）偶联剂是选自环氧基，氨基和巯基的官能团或基团。 负带电性调色剂的重均粒径为3〜9μm。

公开(公告)号：US06506531B1

公开(公告)日：2003-01-14

申请号：US09434403

申请日：1999-11-05

申请人： Toshiyuki Hakata ,  Hiroomi Kakihara ,  Masaaki Fukugauchi ,  Kenji Okada ,  Yushi Mikuriya ,  Kazumi Yoshizaki

发明人： Toshiyuki Hakata ,  Hiroomi Kakihara ,  Masaaki Fukugauchi ,  Kenji Okada ,  Yushi Mikuriya ,  Kazumi Yoshizaki

IPC分类号： G03G9113

CPC分类号： G03G9/1135 ,  G03G9/107 ,  G03G9/1139

摘要： A magnetic carrier exhibiting excellent durability against mechanical impact as exerted by vibration and capable of exhibiting a stable charging performance in electrophotography is provided. The magnetic carrier is formed through a process including steps of: surface treating inorganic compound particles with a lipophilizing agent having a functional group (A) selected from epoxy group, amino group, mercapto group, organic acid group, ester group, ketone group, halogenated alkyl group and aldehyde group; forming composite particles from the surface-treated inorganic compound particles and a binder resin; and then surface-coating the composite particles with a coupling agent having a functional group (B) different from the functional group (A) of the lipophilizing agent and selected from epoxy group, amino group and mercapto group, or with a coating resin having a functional group (C) different from the functional group (A) of the lipophilizing agent and selected from epoxy group, amino group, organic acid group, ester group, ketone group and halogenated alkyl group.

摘要翻译： 本发明提供了一种磁性载体，其通过振动表现出优异的机械冲击耐久性并能够在电子照相术中表现出稳定的充电性能。 磁性载体通过以下步骤形成：包括以下步骤形成的无机化合物颗粒：用具有选自环氧基，氨基，巯基，有机酸基，酯基，酮基，卤代的官能团（A）的亲脂性表面处理无机化合物颗粒 烷基和醛基; 从表面处理的无机化合物颗粒和粘合剂树脂形成复合颗粒; 然后用具有与脂质体的官能团（A）不同的选自环氧基，氨基和巯基的官能团（B）的偶联剂或与具有 官能团（C）与脂肪酶官能团（A）不同，选自环氧基，氨基，有机酸基，酯基，酮基和卤代烷基。

公开(公告)号：US06372400B1

公开(公告)日：2002-04-16

申请号：US09606162

申请日：2000-06-29

申请人： Kazumi Yoshizaki ,  Kenji Okado ,  Makoto Kanbayashi ,  Yushi Mikuriya

发明人： Kazumi Yoshizaki ,  Kenji Okado ,  Makoto Kanbayashi ,  Yushi Mikuriya

IPC分类号： G03G9113

CPC分类号： G03G9/1131 ,  G03G9/1075 ,  G03G9/1135 ,  G03G9/1136 ,  G03G9/1137 ,  G03G9/1138 ,  G03G9/1139

摘要： A carrier for use in electrophotography has carrier cores comprising a binder resin and metal compound particles dispersed therein, and a coating resin for coating the surfaces of the carrier cores. Water adsorption TH2O-H (% by weight) after the carrier has been left in an environment of 30° C./80%RH, water adsorption TH2O-L (% by weight) after the carrier has been left in an environment of 23° C./5%RH, and particle surface area Sm (cm2/g) of the carrier satisfy the following relationship: 6.00×10−6≦TH2O-H/(100×Sm)≦1.50×10−5, and 1.00×10−6≦TH2O-L/(100×Sm)≦5.50×10−6.

摘要翻译： 用于电子照相术的载体具有包含分散在其中的粘合剂树脂和金属化合物颗粒的载体芯，以及用于涂覆载体芯的表面的涂布树脂。 载体在30°C / 80％RH之间的水中吸附TH2O-H（重量％）后，载体在23度环境中被吸附后的水分吸附量TH2O-L（重量％） ℃5％RH，载体的颗粒表面积Sm（cm 2 / g）满足以下关系：

公开(公告)号：US06936394B2

公开(公告)日：2005-08-30

申请号：US10081844

申请日：2002-02-25

申请人： Kenji Okado ,  Yushi Mikuriya ,  Kazumi Yoshizaki ,  Naotaka Ikeda

发明人： Kenji Okado ,  Yushi Mikuriya ,  Kazumi Yoshizaki ,  Naotaka Ikeda

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113

CPC分类号： G03G9/1136 ,  G03G9/08782 ,  G03G9/10 ,  G03G9/107

摘要： An electrostatic latent image on an image-bearing member is developed with a two-component developer comprising a toner and a carrier stored in a developer vessel while supplying as required a replenishing developer to the developer vessel. The replenishing developer comprises 1 wt. part of a carrier and 2-50 wt. parts of a toner, wherein the carrier is a magnetic fine particle-dispersed resin carrier comprising at least inorganic compound particles and a carrier binder resin, and the toner has a weight-average particle size of 3 to 10 μm and contains 1 to 40 wt. % of solid wax.

摘要翻译： 图像承载部件上的静电潜像用包含调色剂和存储在显影剂容器中的载体的双组分显影剂显影，同时根据需要向显影剂容器提供补充显影剂。 补充显影剂包含1重量％ 载体的一部分和2-50wt。 调色剂的一部分，其中所述载体是至少包含无机化合物颗粒和载体粘合剂树脂的磁性细颗粒分散树脂载体，并且所述调色剂的重均粒径为3至10μm，并且含有1至40wt 。 ％固体蜡。

公开(公告)号：US06316157B1

公开(公告)日：2001-11-13

申请号：US09610914

申请日：2000-07-05

申请人： Junko Yoshikawa ,  Kenji Okado ,  Masaaki Taya ,  Yushi Mikuriya ,  Kazumi Yoshizaki ,  Yasushi Katsuta ,  Kenichi Nakayama

发明人： Junko Yoshikawa ,  Kenji Okado ,  Masaaki Taya ,  Yushi Mikuriya ,  Kazumi Yoshizaki ,  Yasushi Katsuta ,  Kenichi Nakayama

IPC分类号： G03G9097

CPC分类号： G03G9/09708 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/09783

摘要： A non-metallic black toner is disclosed. The toner has toner particles containing at least a binder resin, a carbon black and an organometallic compound, and an external additive. The toner particles contain 10 to 200 ppm of at least one kind of alkali metal element and at least one kind of organometallic compound. The toner particles further contain a polyester resin. The non-metallic black toner has a weight-average particle diameter of 4 to 11 &mgr;m, the following loss tangents tan &dgr; shown by dielectric loss factor ∈″/dielectric constant ∈′ at frequencies of 5×104 Hz and 105 Hz: tan &dgr; (5×104 Hz)≦0.0125 tan &dgr; (105 Hz)≦0.0105, a Carr's flowability index of 50 or more, and a Carr's floodability index of 65 or more. Also, an image forming method is disclose using the black toner.

摘要翻译： 公开了一种非金属黑色调色剂。 调色剂具有至少含有粘合剂树脂，炭黑和有机金属化合物的调色剂颗粒和外部添加剂。 调色剂颗粒含有10-200ppm的至少一种碱金属元素和至少一种有机金属化合物。 调色剂颗粒还含有聚酯树脂。 非金属黑色调色剂的重均粒径为4〜11μm，频率为5×104Hz，105Hz时的介电损耗因子∈“/介电常数ε'表示的以下损耗正切tanδ：卡尔的流动性 指数为50以上，卡尔的防洪指数为65以上。 此外，使用黑色调色剂公开了图像形成方法。

公开(公告)号：US6124067A

公开(公告)日：2000-09-26

申请号：US358409

申请日：1999-07-22

申请人： Yushi Mikuriya ,  Kenji Okado ,  Kazumi Yoshizaki

发明人： Yushi Mikuriya ,  Kenji Okado ,  Kazumi Yoshizaki

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G9/107 ,  G03G9/113 ,  G03G15/08

CPC分类号： G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1132 ,  G03G9/1134 ,  G03G9/1135 ,  G03G9/1139

摘要： A magnetic carrier constituting a two-component developer for use in an electrophotographic image forming method is formed of a carrier core comprising a first resin and magnetic fine particles dispersed in the first resin, and a second resin surface-coating the carrier core. (a) The magnetic carrier has a true specific gravity of 2.5-4.5, a magnetization .sigma..sub.1000 as measured in a magnetic field of 1000.times.(10.sup.3 /4.pi.).multidot.A/m (1000 oersted) of 15-60 Am.sup.2 /kg (emu/g), a residual magnetization .sigma..sub.r of 0.1-20 Am.sup.2 /kg (emu/g) and a resistivity of 5.times.10.sup.11 -5.times.10.sup.15 ohm.cm. (b) The first resin has a polymer chain including a methylene unit (--CH.sub.2 --). (c) The second resin has at least a fluoro-alkyl unit, a methylene unit (--CH.sub.2 --) and an ester unit. (d) The carrier core is surface-coated with (i) a mixture of the second resin and a coupling agent having at least an amino group and a methylene unit, or (ii) a coupling agent having at least an amino group and a methylene unit, and then with the second resin.

摘要翻译： 构成用于电子照相成像方法的双组分显影剂的磁性载体由包含分散在第一树脂中的第一树脂和磁性细颗粒的载体芯和表面涂覆载体芯的第二树脂形成。 （a）磁性载体的真比重为2.5-4.5，在1000×（103/4 pi）×A / m（1000奥斯特）为15-60Am 2 / kg（emu）的磁场中测量的磁化σ1000 / g），剩余磁化σr为0.1-20Am 2 / kg（emu / g），电阻率为5×10 11 -5×10 15欧姆·厘米。 （b）第一树脂具有包含亚甲基单元（-CH 2 - ）的聚合物链。 （c）第二树脂具有至少氟烷基单元，亚甲基单元（-CH 2 - ）和酯单元。 （d）载体芯表面涂覆有（i）第二树脂和至少具有氨基和亚甲基单元的偶联剂的混合物，或（ii）至少具有氨基的偶联剂和 亚甲基单元，然后与第二树脂。

公开(公告)号：US08518623B2

公开(公告)日：2013-08-27

申请号：US13076265

申请日：2011-03-30

申请人： Kenta Kamikura ,  Shinya Yachi ,  Kazumi Yoshizaki ,  Yasushi Katsuta ,  Takeshi Kaburagi

发明人： Kenta Kamikura ,  Shinya Yachi ,  Kazumi Yoshizaki ,  Yasushi Katsuta ,  Takeshi Kaburagi

IPC分类号： G03G9/08

CPC分类号： G03G9/0804 ,  G03G9/0806 ,  G03G9/08755 ,  G03G9/08791 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner includes a toner particle, which contains at least a binding resin, a colorant, and two types of polar resins, i.e., a polar resin H and a polar resin L, and which is obtained with granulation in a water-based medium, wherein solubility parameters, glass transition points, and weight-average molecular weights of the binding resin, the polar resin H, and the polar resin L, as well as amounts of the added resins satisfy respective specific relationships.

摘要翻译： 调色剂包括至少含有粘合树脂，着色剂和两种极性树脂（即极性树脂H和极性树脂L）的调色剂颗粒，并且其在水性介质中制粒， 其中粘合树脂，极性树脂H和极性树脂L的溶解度参数，玻璃化转变点和重均分子量以及所添加的树脂的量满足各自的具体关系。

公开(公告)号：US20130164666A1

公开(公告)日：2013-06-27

申请号：US13822266

申请日：2011-09-28

申请人： Nobuhisa Abe ,  Shinya Yachi ,  Kazumi Yoshizaki ,  Kenichi Nakayama ,  Shiro Kuroki

发明人： Nobuhisa Abe ,  Shinya Yachi ,  Kazumi Yoshizaki ,  Kenichi Nakayama ,  Shiro Kuroki

IPC分类号： G03G9/08

CPC分类号： G03G9/08782 ,  G03G9/0821 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708

摘要： To provide a toner having a superior developing performance while preventing any fixing assembly from being contaminated, the toner has toner particles which have toner base particles containing at least a binder resin, a colorant and a wax, and an inorganic fine powder, wherein the wax has a 0.2% by mass heating loss temperature of 200° C. or more and a 1.0% by mass heating loss temperature of 250° C. or more and has a melt viscosity at 120° C. of from 3.0 mPa·s to 15.0 mPa·s.

摘要翻译： 为了提供具有优异显影性能的调色剂，同时防止任何定影组件被污染，调色剂具有调色剂颗粒，其具有至少含有粘合剂树脂，着色剂和蜡的调色剂基础颗粒和无机细粉末，其中蜡 具有200℃以上的0.2质量％的加热损失温度和250℃以上的1.0质量％的加热失
火温度，在120℃下的熔融粘度为3.0mPa·s〜15.0 mPa·s。

公开(公告)号：US20120328979A1

公开(公告)日：2012-12-27

申请号：US13582830

申请日：2011-03-28

申请人： Kazumi Yoshizaki ,  Shinya Yachi ,  Yasushi Katsuta ,  Kenichi Nakayama ,  Takeshi Kaburagi

发明人： Kazumi Yoshizaki ,  Shinya Yachi ,  Yasushi Katsuta ,  Kenichi Nakayama ,  Takeshi Kaburagi

IPC分类号： G03G9/09

CPC分类号： G03G9/0821 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09321 ,  G03G9/09328 ,  G03G9/09385 ,  G03G9/09392

摘要： A toner is provided which has toner particles and an inorganic fine powder; the toner particles being obtained by suspension polymerization using a specific polar resin. The toner is a toner in which; where, in displacement levels found in a micro-compression test in which a force is applied to a toner single particle at a loading rate of 9.8×10−6 N/sec to measure a displacement level (μm) at a point of time where the force has reached a maximum force of 4.90×10−4 N, the displacement level of the toner at a measurement temperature of 25° C. is represented by X(25) and the displacement level of the toner at a measurement temperature of 50° C. by X(50), and the number average particle diameter of the toner is represented by D (μm), the X(25), X(50) and D satisfies the relations: 0.10≦X(25)/D≦0.35  (1) 30≦[X(50)−X(25)]/X(25)×100≦150  (2).

摘要翻译： 提供具有调色剂颗粒和无机细粉末的调色剂; 调色剂颗粒通过使用特定极性树脂的悬浮聚合获得。 调色剂是其中的调色剂; 其中，在微压缩试验中发现的位移水平，其中以9.8×10-6N /秒的载荷速率将力施加到调色剂单颗粒上以在时间点测量位移水平（μm）， 力已经达到4.90×10-4N的最大力，在25℃的测量温度下调色剂的位移水平由X（25）表示，调色剂在测量温度为50℃时的位移水平 ℃（50），调色剂的数均粒径由D（μm）表示，X（25），X（50）和D满足关系式：0.10＆nlE; X（25）/ （X（50）-X（25）] / X（25）×100＆nlE; 150（2）。

公开(公告)号：US20110244386A1

公开(公告)日：2011-10-06

申请号：US13076265

申请日：2011-03-30

申请人： Kenta Kamikura ,  Shinya Yachi ,  Kazumi Yoshizaki ,  Yasushi Katsuta ,  Takeshi Kaburagi

发明人： Kenta Kamikura ,  Shinya Yachi ,  Kazumi Yoshizaki ,  Yasushi Katsuta ,  Takeshi Kaburagi

IPC分类号： G03G9/08

CPC分类号： G03G9/0804 ,  G03G9/0806 ,  G03G9/08755 ,  G03G9/08791 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner includes a toner particle, which contains at least a binding resin, a colorant, and two types of polar resins, i.e., a polar resin H and a polar resin L, and which is obtained with granulation in a water-based medium, wherein solubility parameters, glass transition points, and weight-average molecular weights of the binding resin, the polar resin H, and the polar resin L, as well as amounts of the added resins satisfy respective specific relationships.

摘要翻译： 调色剂包括至少含有粘合树脂，着色剂和两种极性树脂（即极性树脂H和极性树脂L）的调色剂颗粒，并且其在水性介质中制粒， 其中粘合树脂，极性树脂H和极性树脂L的溶解度参数，玻璃化转变点和重均分子量以及所添加的树脂的量满足各自的具体关系。