公开(公告)号：US07537875B2

公开(公告)日：2009-05-26

申请号：US11157874

申请日：2005-06-22

申请人： Yushi Mikuriya ,  Satoshi Handa ,  Yuji Moriki ,  Yasushi Katsuta ,  Emi Tosaka

发明人： Yushi Mikuriya ,  Satoshi Handa ,  Yuji Moriki ,  Yasushi Katsuta ,  Emi Tosaka

IPC分类号： G03G9/00

CPC分类号： G03G9/08755 ,  G03G9/0804 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0975

摘要： In a toner having toner particles which comprise toner base particles containing at least a colorant, a release agent and a polar resin, and an inorganic fine powder, the polar resin is a resin having at least a polyester unit, synthesized in the presence of an aromatic carboxylic acid titanium compound used as a catalyst, and has an acid value of from 3 mgKOH/g to 35 mgKOH/g. The toner base particles are obtained by carrying out granulation in an aqueous medium, and the toner has a weight-average particle diameter of from 4.0 μm to 10.0 μm.

摘要翻译： 在具有包含至少含有着色剂，脱模剂和极性树脂的调色剂基础颗粒和无机细粉末的调色剂颗粒的调色剂中，极性树脂是至少具有聚酯单元的树脂，其在 芳族羧酸钛化合物，其酸值为3mgKOH / g至35mgKOH / g。 调色剂基础颗粒通过在水性介质中进行造粒而得到，调色剂的重均粒径为4.0〜10.0μm。

公开(公告)号：US20110053073A1

公开(公告)日：2011-03-03

申请号：US12812869

申请日：2009-02-24

申请人： Naoya Isono ,  Satoshi Handa ,  Katsuyuki Nonaka ,  Koji Abe ,  Yasuhiro Hashimoto ,  Akira Sugiyama ,  Yuhei Terui

发明人： Naoya Isono ,  Satoshi Handa ,  Katsuyuki Nonaka ,  Koji Abe ,  Yasuhiro Hashimoto ,  Akira Sugiyama ,  Yuhei Terui

IPC分类号： G03G9/08

CPC分类号： G03G9/09791 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08782

摘要： A toner is provided which is excellent in development stability in both a low-temperature, low-humidity environment and a high-temperature, high-humidity environment over a long time period. The toner includes toner particles containing at least a binder resin and a colorant, and a fatty acid metal salt. The fatty acid metal salt has a volume-based median diameter (D50s) of 0.15 μm or more and 0.65 μm or less, and the liberation ratio of the fatty acid metal salt in the toner is 1.0% or more and 25.0% or less.

摘要翻译： 提供了一种调色剂，其在低温，低湿度环境和高温，高湿度环境下在长时间内具有优异的显影稳定性。 调色剂包括至少含有粘合剂树脂和着色剂的调色剂颗粒和脂肪酸金属盐。 脂肪酸金属盐的体积基准中值粒径（D50s）为0.15μm以上且0.65μm以下，调色剂中的脂肪酸金属盐的释放率为1.0％以上且25.0％以下。

公开(公告)号：US08367289B2

公开(公告)日：2013-02-05

申请号：US12812869

申请日：2009-02-24

申请人： Naoya Isono ,  Satoshi Handa ,  Katsuyuki Nonaka ,  Koji Abe ,  Yasuhiro Hashimoto ,  Akira Sugiyama ,  Yuhei Terui

发明人： Naoya Isono ,  Satoshi Handa ,  Katsuyuki Nonaka ,  Koji Abe ,  Yasuhiro Hashimoto ,  Akira Sugiyama ,  Yuhei Terui

IPC分类号： G03G9/08

CPC分类号： G03G9/09791 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08782

摘要： A toner is provided which is excellent in development stability in both a low-temperature, low-humidity environment and a high-temperature, high-humidity environment over a long time period. The toner includes toner particles containing at least a binder resin and a colorant, and a fatty acid metal salt. The fatty acid metal salt has a volume-based median diameter (D50s) of 0.15 μm or more and 0.65 μm or less, and the liberation ratio of the fatty acid metal salt in the toner is 1.0% or more and 25.0% or less.

摘要翻译： 提供了一种调色剂，其在低温，低湿度环境和高温，高湿度环境下在长时间内具有优异的显影稳定性。 调色剂包括至少含有粘合剂树脂和着色剂的调色剂颗粒和脂肪酸金属盐。 脂肪酸金属盐的体积基准中值粒径（D50s）为0.15μm以上且0.65μm以下，调色剂中的脂肪酸金属盐的释放率为1.0％以上且25.0％以下。

公开(公告)号：US08652737B2

公开(公告)日：2014-02-18

申请号：US12266136

申请日：2008-11-06

申请人： Satoshi Handa ,  Naoya Isono ,  Katsuyuki Nonaka ,  Koji Abe ,  Yasuhiro Hashimoto ,  Akira Sugiyama ,  Yuhei Terui

发明人： Satoshi Handa ,  Naoya Isono ,  Katsuyuki Nonaka ,  Koji Abe ,  Yasuhiro Hashimoto ,  Akira Sugiyama ,  Yuhei Terui

IPC分类号： G03G13/08 ,  G03G9/00

CPC分类号： G03G9/09791 ,  G03G9/09733 ,  G03G9/09741 ,  G03G9/0975

摘要： A toner which has i) toner base particles containing at least a binder resin and a colorant and ii) a fatty acid metal salt composition as an external additive. The fatty acid metal salt composition contains a nonionic surface-active agent and a fatty acid metal salt. This toner and an image forming process making use of the toner can keep the toner from adhering to a toner carrying member throughout running, promise a stable chargeability of the toner and can keep any deterioration of halftone image quality from being caused by excess charging of the toner and any image fog from being caused by insufficient charging of the toner.

摘要翻译： 一种调色剂，其具有i）至少含有粘合剂树脂和着色剂的调色剂基础颗粒和ii）作为外部添加剂的脂肪酸金属盐组合物。 脂肪酸金属盐组合物含有非离子表面活性剂和脂肪酸金属盐。 该调色剂和使用调色剂的图像形成工艺可以使调色剂在整个运行过程中保持调色剂附着到调色剂承载部件上，从而保证了调色剂的稳定的带电性，并且可以保持半色调图像质量的任何劣化不会由于 调色剂和由于调色剂充电不足引起的任何图像雾。

公开(公告)号：US20090130582A1

公开(公告)日：2009-05-21

申请号：US12266136

申请日：2008-11-06

申请人： Satoshi Handa ,  Naoya Isono ,  Katsuyuki Nonaka ,  Koji Abe ,  Yasuhiro Hashimoto ,  Akira Sugiyama ,  Yuhei Terui

发明人： Satoshi Handa ,  Naoya Isono ,  Katsuyuki Nonaka ,  Koji Abe ,  Yasuhiro Hashimoto ,  Akira Sugiyama ,  Yuhei Terui

IPC分类号： G03G9/08 ,  G03G13/20

CPC分类号： G03G9/09791 ,  G03G9/09733 ,  G03G9/09741 ,  G03G9/0975

摘要： A toner which has i) toner base particles containing at least a binder resin and a colorant and ii) a fatty acid metal salt composition as an external additive. The fatty acid metal salt composition contains a nonionic surface-active agent and a fatty acid metal salt. This toner and an image forming process making use of the toner can keep the toner from adhering to a toner carrying member throughout running, promise a stable chargeability of the toner and can keep any deterioration of halftone image quality from being caused by excess charging of the toner and any image fog from being caused by insufficient charging of the toner.

摘要翻译： 一种调色剂，其具有i）至少含有粘合剂树脂和着色剂的调色剂基础颗粒和ii）作为外部添加剂的脂肪酸金属盐组合物。 脂肪酸金属盐组合物含有非离子表面活性剂和脂肪酸金属盐。 该调色剂和使用调色剂的图像形成工艺可以使调色剂在整个运行过程中保持调色剂附着到调色剂承载部件上，从而保证了调色剂的稳定的带电性，并且可以保持半色调图像质量的任何劣化不会由于 调色剂和由于调色剂充电不足引起的任何图像雾。

公开(公告)号：US06569589B2

公开(公告)日：2003-05-27

申请号：US09915420

申请日：2001-07-27

申请人： Koji Inaba ,  Hiroaki Kawakami ,  Tatsuya Nakamura ,  Shinya Yachi ,  Yuji Moriki ,  Satoshi Handa ,  Katsuyuki Nonaka ,  Yoshihiro Nakagawa

发明人： Koji Inaba ,  Hiroaki Kawakami ,  Tatsuya Nakamura ,  Shinya Yachi ,  Yuji Moriki ,  Satoshi Handa ,  Katsuyuki Nonaka ,  Yoshihiro Nakagawa

IPC分类号： G03G9087

CPC分类号： G03G9/08711 ,  G03G9/08708 ,  G03G9/08771 ,  G03G9/08784 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0902

摘要： A toner having a good chargeability stable against an environmental change is formed of toner particles each comprising at least a binder resin, a colorant, a release agent and a sulfur-containing polymer, and an external additive. The toner particles contain 100 to 30,000 ppm by weight thereof of at least one stabilizer element selected from the group consisting of magnesium, calcium, barium, zinc, aluminum and phosphorus. The toner particles may preferably be produced by suspension polymerization of a monomer composition containing the sulfur-containing polymer in an aqueous medium containing a dispersion stabilizer having the stabilizer element.

公开(公告)号：US06859633B2

公开(公告)日：2005-02-22

申请号：US10340685

申请日：2003-01-13

申请人： Satoshi Handa ,  Hiroaki Kawakami ,  Yuji Moriki ,  Kiyokazu Suzuki ,  Yasuhiro Hashimoto

发明人： Satoshi Handa ,  Hiroaki Kawakami ,  Yuji Moriki ,  Kiyokazu Suzuki ,  Yasuhiro Hashimoto

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G21/18 ,  G03G15/04 ,  G03G15/08

CPC分类号： G03G21/1814 ,  G03G9/0821 ,  G03G9/08782

摘要： In a process cartridge having a latent-image-bearing member and a developing device having a developer-holding part and a developing member, at a vertical section which bisects in the process cartridge the surface of the latent-image-bearing member with which surface the developing member is brought into pressure contact, a developer agitation and transport member has at least two rotary agitation and transport members having rotating shafts falling at right angles with the vertical section. Where, at the vertical section, the area of the developer-holding part is represented by S1 and the area of the part corresponding to the movable region of the rotary agitation and transport member is represented by S2, the ratio of S2 to S1, S2/S1, is from 0.8 to 0.99; and the ratio of a long side Sa to a short side Sb, Sa/Sb, of a circumparallelogram having a minimum area in respect to the area S1 in the vertical section is from 1.5 to 3.0. The non-magnetic one-component developer contains at least a binder resin and a colorant and has a fluidity index of from 50 to 90 and a floodability index of from 45 to 96.

摘要翻译： 在具有潜像承载部件和具有显影剂保持部分和显影部件的显影装置的处理盒中，在处理盒中将在潜像承载部件的表面平分的垂直部分处， 显影构件被压力接触，显影剂搅拌和输送构件具有至少两个旋转搅拌和传送构件，其具有与垂直部分成直角的旋转轴。 在垂直截面处，由S1表示显影剂保持部的区域，由S2表示与旋转搅拌输送构件的可动区域对应的部分的面积，S2与S1，S2的比 / S1为0.8〜0.99; 并且相对于垂直截面中的面积S1具有最小面积的长边Sa与短边Sb，Sa / Sb的比率为1.5〜3.0。 非磁性单组分显影剂至少含有粘合剂树脂和着色剂，其流动性指数为50〜90，防洪指数为45〜96。

公开(公告)号：US06447970B1

公开(公告)日：2002-09-10

申请号：US09588684

申请日：2000-06-07

申请人： Satoshi Matsunaga ,  Manabu Ohno ,  Koji Inaba ,  Satoshi Handa ,  Ryota Kashiwabara

发明人： Satoshi Matsunaga ,  Manabu Ohno ,  Koji Inaba ,  Satoshi Handa ,  Ryota Kashiwabara

IPC分类号： G03G9097

CPC分类号： G03G9/097 ,  G03G9/09741 ,  G03G9/0975 ,  G03G9/09783

摘要： A toner contains at least a binder resin, a colorant, a wax and an aluminum compound, wherein the binder resin has an acid value of 1 to 40 mgKOH/g; the binder resin contains 2% to 50% by weight of tetrahydrofuran (THF) based on the weight of the binder resin; a tetrahydrofuran-soluble matter of the binder resin has a main peak in a molecular weight range of from 2,000 to 30,000 in a chromatogram by gel permeation chromatography (GPC); and the aluminum compound is a specific aluminum compound of substituted or unsubstituted benzilic acid.

摘要翻译： 调色剂至少含有粘合剂树脂，着色剂，蜡和铝化合物，其中粘合剂树脂的酸值为1至40mgKOH / g; 基于粘合剂树脂的重量，粘合剂树脂含有2重量％至50重量％的四氢呋喃（THF）; 粘合剂树脂的四氢呋喃可溶物质通过凝胶渗透色谱法（GPC）在色谱图中具有2,000至30,000的分子量范围内的主峰; 铝化合物是取代或未取代的二苯甲酸的特定的铝化合物。

公开(公告)号：US5976755A

公开(公告)日：1999-11-02

申请号：US66838

申请日：1998-04-28

申请人： Satoshi Yoshida ,  Tsutomu Kukimoto ,  Manabu Ohno ,  Yasukazu Ayaki ,  Satoshi Handa ,  Akira Hashimoto

发明人： Satoshi Yoshida ,  Tsutomu Kukimoto ,  Manabu Ohno ,  Yasukazu Ayaki ,  Satoshi Handa ,  Akira Hashimoto

IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G9/093 ,  G03G13/22

CPC分类号： G03G9/091 ,  G03G9/0904 ,  G03G9/0827 ,  G03G9/093

摘要： An image forming method includes charging an image carrier for carrying an electrostatic latent image;forming an electrostatic latent image on the charged image carrier;developing the electrostatic latent image with a toner by contacting a toner layer on a surface of a toner carrier with a surface of the image carrier to form a toner image thereon;copying the toner image formed on the surface of the image carrier onto a copy medium;wherein the toner has toner particles containing at least a bonding resin, carbon black and an azo-based iron compound and inorganic fine powder;the carbon black having an average primary particles size within a range of from 25 to 80 nm; andthe azo-based iron compound having a specific structure.

摘要翻译： 图像形成方法包括对用于承载静电潜像的图像载体进行充电; 在充电图像载体上形成静电潜像; 通过使调色剂载体的表面上的调色剂层与图像载体的表面接触来在调色剂上显影静电潜像以在其上形成调色剂图像; 将形成在图像载体的表面上的调色剂图像复制到复印介质上; 其中调色剂具有至少含有粘结树脂，炭黑和偶氮系铁化合物和无机细粉末的调色剂颗粒; 所述炭黑的平均一次粒径在25〜80nm的范围内; 和具有特定结构的偶氮类铁化合物。

公开(公告)号：US06610454B2

公开(公告)日：2003-08-26

申请号：US09146356

申请日：1998-09-03

申请人： Akira Hashimoto ,  Tsutomu Kukimoto ,  Manabu Ohno ,  Tsuyoshi Takiguchi ,  Yasukazu Ayaki ,  Satoshi Handa ,  Masanori Ito ,  Keiji Komoto

发明人： Akira Hashimoto ,  Tsutomu Kukimoto ,  Manabu Ohno ,  Tsuyoshi Takiguchi ,  Yasukazu Ayaki ,  Satoshi Handa ,  Masanori Ito ,  Keiji Komoto

IPC分类号： G03G9087

CPC分类号： G03G9/08757 ,  G03G9/08795

摘要： A toner is comprised of a binder resin, a colorant and a wax. The binder resin has a polycarbonate resin in an amount of from 0.1% by weight to 50.0% by weight and a resin other than the polycarbonate resin in an amount of from 50.0% by weight to 99.9% by weight, based on the weight of the binder resin. In molecular weight distribution as measured by gel permeation chromatography of tetrahydrofuran-soluble matter, the toner contains in an amount of 15.0% by weight or less based on the weight of the toner a component which has in its structure a repeating unit of the polycarbonate resin and is contained in components having a molecular weight of 1,000 or less.

摘要翻译： 调色剂由粘合剂树脂，着色剂和蜡组成。 粘合剂树脂的聚碳酸酯树脂的量为0.1重量％〜50.0重量％，除聚碳酸酯树脂以外的树脂的重量比为50.0重量％〜99.9重量％ 粘合剂树脂。 在通过四氢呋喃可溶物质的凝胶渗透色谱法测量的分子量分布中，调色剂的含量相对于调色剂的重量为15.0重量％，其组分为聚碳酸酯树脂的重复单元 并且含有分子量为1,000以下的成分。