公开(公告)号：US5604071A

公开(公告)日：1997-02-18

申请号：US393041

申请日：1995-02-23

申请人： Kenji Okado ,  Ryoichi Fujita ,  Tsuyoshi Takiguchi

发明人： Kenji Okado ,  Ryoichi Fujita ,  Tsuyoshi Takiguchi

IPC分类号： C09C1/36 ,  G03G9/087 ,  G03G9/097 ,  G03G9/08

CPC分类号： B82Y30/00 ,  C09C1/3684 ,  G03G9/08755 ,  G03G9/09716 ,  C01P2002/02 ,  C01P2002/84 ,  C01P2004/10 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/80 ,  C01P2004/84 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/60 ,  C01P2006/90

摘要： The toner for developing an electrostatic image, excellent in any environmental conditions, comprises the colorant-containing resin particles and at least one kind of fine titanium oxide powder which has been made hydrophobic by treating in an aqueous medium; the fine titanium oxide powder has an average particle diameter of from 0.001 .mu.m to 0.2 .mu.m and a hydrophobicity of from 20% to 80%.

摘要翻译： 用于显影静电图像的调色剂在任何环境条件下都是优异的，包括含着色剂的树脂颗粒和至少一种通过在水介质中处理而疏水的氧化钛粉末; 该微细氧化钛粉末的平均粒径为0.001μm〜0.2μm，疏水性为20〜80％。

公开(公告)号：US06346356B1

公开(公告)日：2002-02-12

申请号：US09572642

申请日：2000-05-17

申请人： Manabu Ohno ,  Toshiyuki Ugai ,  Ryoichi Fujita ,  Shinya Yachi ,  Yasushi Katsuta ,  Kenichi Nakayama

发明人： Manabu Ohno ,  Toshiyuki Ugai ,  Ryoichi Fujita ,  Shinya Yachi ,  Yasushi Katsuta ,  Kenichi Nakayama

IPC分类号： G03G9097

CPC分类号： G03G9/09733 ,  G03G9/0806 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/097

摘要： A toner is comprised of toner particles containing at least a binder resin, a colorant, a wax component and an oxycarboxylic acid. The toner satisfies the following conditions: 1.05≦A/B≦3.00, and 0.15≦B≦3.50 wherein A (mg) is a weight of oxycarboxylic acid extracted with methanol from 1 g of the toner, and B (mg) is a weight of oxycarboxylic acid extracted with an aqueous 0.1 mol/liter sodium hydroxide solution from 1 g of the toner.

摘要翻译： 调色剂由至少含有粘合剂树脂，着色剂，蜡组分和羟基羧酸的调色剂颗粒构成。 调色剂满足以下条件：A（mg）是由1g调色剂用甲醇提取的羟基羧酸的重量，B（mg）是用0.1mol / l氢氧化钠水溶液提取的羟基羧酸的重量 从1克调色剂。

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：US6137977A

公开(公告)日：2000-10-24

申请号：US99136

申请日：1998-06-18

申请人： Kenji Okado ,  Ryoichi Fujita ,  Masanori Shida ,  Kazumi Yoshizaki

发明人： Kenji Okado ,  Ryoichi Fujita ,  Masanori Shida ,  Kazumi Yoshizaki

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G9/10 ,  G03G9/107 ,  G03G15/08

CPC分类号： G03G9/107 ,  G03G15/0853 ,  G03G9/0819 ,  G03G9/09708 ,  G03G9/10

摘要： In the image forming machine of the invention, a two-component type developer has a spherical magnetic powder dispersion type carrier, which has a weight average particle diameter of from 15 to 60 .mu.m. The external additive is present in the form of particles on the toner particle, and comprises inorganic oxide fine particles A having a shape factor SF-1 of from 100 to 130, and non-spherical inorganic oxide fine particles B, having a shape factor SF-1 larger than 150 and particles B having been obtained by combining a plurality of component particles.

摘要翻译： 在本发明的成像机中，双组分型显影剂具有球形磁粉分散型载体，其重均粒径为15至60μm。 外部添加剂以调色剂颗粒上的颗粒形式存在，并且包含形状因子SF-1为100至130的无机氧化物细颗粒A和具有形状因子SF的非球形无机氧化物细颗粒B -1大于150，颗粒B通过组合多个组分颗粒而获得。

公开(公告)号：US5620824A

公开(公告)日：1997-04-15

申请号：US272507

申请日：1994-07-07

申请人： Kenji Okado ,  Akihiko Nakazawa ,  Ryoichi Fujita ,  Makoto Kanbayashi

发明人： Kenji Okado ,  Akihiko Nakazawa ,  Ryoichi Fujita ,  Makoto Kanbayashi

IPC分类号： G03G9/08 ,  G03G9/097

CPC分类号： G03G9/08 ,  G03G9/0819 ,  G03G9/0823 ,  G03G9/097

摘要： A toner for developing an electrostatic image has colored resin particles-(A) containing a coloring agent or a magnetic powder, and a powdery additive. The powdery additive has organic resin particles-(B) having peaks respectively in a region of particles diameters of 20 m.mu. to 200 m.mu. and a region of particle diameters of 300 m.mu. to 800 m.mu. in their particle size distribution, and the larger-diameters particles included in the region of particle diameters of 300 m.mu. to 800 m.mu. being contained in an amount of from 2% by weight to 20% by weight.

摘要翻译： 用于显影静电图像的调色剂具有含有着色剂或磁性粉末的着色树脂颗粒 - （A）和粉末状添加剂。 粉末状添加剂具有分别在粒径20μm〜200μm的范围内具有峰值的有机树脂粒子，粒径分布为300μm〜800μm的粒子的区域， 包含在粒径为300μm至800μm的区域中的大直径粒子的含量为2重量％至20重量％。

公开(公告)号：US6077635A

公开(公告)日：2000-06-20

申请号：US99527

申请日：1998-06-18

申请人： Kenji Okado ,  Ryoichi Fujita ,  Wakashi Iida ,  Yuji Moriki ,  Kazumi Yoshizaki ,  Michihisa Magome

发明人： Kenji Okado ,  Ryoichi Fujita ,  Wakashi Iida ,  Yuji Moriki ,  Kazumi Yoshizaki ,  Michihisa Magome

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G13/01

CPC分类号： G03G9/0827 ,  G03G9/0819 ,  G03G9/09708

摘要： A toner is disclosed which has toner particles and an external additive. The toner has (a) in circularity distribution of particles measured with a flow type particle image analyzer, an average circularity of from 0.920 to 0.995, containing particles with a circularity of less than 0.950 in an amount of from 2% by number to 40% by number; and (b) a weight-average particle diameter of from 2.0 .mu.m to 9.0 .mu.m as measured by Coulter method. The external additive has, on the toner particles, at least (i) an inorganic fine powder (A) present in the state of primary particles or secondary particles and having an average particle length of from 10 m.mu.m to 400 m.mu.m and a shape factor SF-1 of from 100 to 130 and (ii) a non-spherical inorganic fine powder (B) formed by coalescence of a plurality of particles and having a shape factor SF-1 of greater than 150. Also, a two-component developer and an image forming method, using the toner, are disclosed.

摘要翻译： 公开了一种具有调色剂颗粒和外部添加剂的调色剂。 调色剂具有（a）以流动型颗粒图像分析仪测量的颗粒的圆形分布，平均圆形度为0.920至0.995，其中圆形度小于0.950的颗粒的量为2％至40％ 按数量 （b）通过Coulter法测定的重均粒径为2.0μm〜9.0μm。 外部添加剂在调色剂颗粒上至少存在（i）以一次粒子或二次粒子状态存在的平均粒子长度为10μm〜400μm的无机细粉末（A）， 100〜130的形状因子SF-1和（ii）通过多个粒子的聚结而形成的非球形的无机细粉末（B），并且具有大于150的形状因子SF-1。另外， - 组分显影剂和使用调色剂的图像形成方法。

公开(公告)号：US07244539B2

公开(公告)日：2007-07-17

申请号：US10834073

申请日：2004-04-29

申请人： Yoshinobu Baba ,  Ryoichi Fujita ,  Takaaki Kaya ,  Kazuo Terauchi

发明人： Yoshinobu Baba ,  Ryoichi Fujita ,  Takaaki Kaya ,  Kazuo Terauchi

IPC分类号： G03G9/113

CPC分类号： G03G9/1139 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1134 ,  G03G9/1138

摘要： A magnetic carrier includes a magnetic material-dispersed resin core containing at least a magnetic material and a binder resin. The surface of the magnetic material-dispersed resin core is coated with a coating material containing at least a fluorine resin and 1 to 40 parts by weight of fine particles based on 100 parts by weight of the fluorine resin. The coating material is in an amount of 0.3 to 4.0 parts by weight based on 100 parts by weight of the magnetic material-dispersed resin core. The magnetic carrier has a contact angle of 95 to 125°. A two-component developer is also provided which makes use of the magnetic carrier.

摘要翻译： 磁性载体包括至少包含磁性材料和粘合剂树脂的磁性材料分散树脂芯。 基于100重量份的氟树脂，磁性材料分散树脂芯的表面涂覆有至少含有氟树脂的涂料和1至40重量份的微粒。 基于100重量份的磁性材料分散树脂核心，涂料的量为0.3〜4.0重量份。 磁性载体的接触角为95〜125°。 还提供了使用磁性载体的双组分显影剂。

公开(公告)号：US06953648B2

公开(公告)日：2005-10-11

申请号：US10421779

申请日：2003-04-24

申请人： Takeshi Tsujino ,  Hitosi Kanda ,  Ryoichi Fujita ,  Yoshinori Tsuji

发明人： Takeshi Tsujino ,  Hitosi Kanda ,  Ryoichi Fujita ,  Yoshinori Tsuji

IPC分类号： G03G9/08

CPC分类号： G03G9/0806

摘要： A process for producing toner particles, in which toner particles are produced by polymerizing a polymerizable monomer composition containing at least a polymerizable monomer in an aqueous medium in a vessel, is provided. In this process, a resin composition containing a THF-insoluble resin component, which is a resin component generated in the process for producing toner particles, is kneaded. Then, the kneaded material and the polymerizable monomer are mixed together, and the resulting polymerizable monomer is polymerized to produce toner particles. For the resin composition, toner particles different from those having desired property, deposits on the vessel where the polymerization reaction occurred, or the like is used.

摘要翻译： 提供了一种调色剂颗粒的制造方法，其中调色剂颗粒通过在容器中的水性介质中至少含有可聚合单体的可聚合单体组合物聚合而制备。 在该方法中，捏合含有作为调色剂颗粒的制造方法中产生的树脂成分的THF不溶性树脂成分的树脂组合物。 然后将捏合的材料和可聚合单体混合在一起，并将所得可聚合单体聚合以产生调色剂颗粒。 对于树脂组合物，使用不同于具有所需性质的调色剂颗粒沉积在发生聚合反应的容器上等。

公开(公告)号：US20110305984A1

公开(公告)日：2011-12-15

申请号：US13157041

申请日：2011-06-09

申请人： Tsuneyoshi Tominaga ,  Ryoichi Fujita ,  Tsutomu Shimano

发明人： Tsuneyoshi Tominaga ,  Ryoichi Fujita ,  Tsutomu Shimano

IPC分类号： G03G9/087

CPC分类号： G03G9/09371 ,  G03G9/09314 ,  G03G9/09364 ,  G03G9/09392

摘要： A toner having a toner particle including a core particle obtained by polymerizing a polymerizable monomer composition containing at least a polymerizable monomer, a colorant, a release agent, a polar resin, and a crystalline polyester in an aqueous medium and an outer shell formed by fixing resin fine particles to the surface of the core particle, wherein the resin constituting the resin fine particles is an amorphous resin and the acid value of the resin fine particles is 4.0 to 50.0 mgKOH/g.

摘要翻译： 一种调色剂，其具有包含通过在水性介质中含有至少含有可聚合单体，着色剂，脱模剂，极性树脂和结晶聚酯的可聚合单体组合物而获得的核心颗粒和通过固定形成的外壳 树脂细颗粒到芯颗粒的表面，其中构成树脂细颗粒的树脂是无定形树脂，树脂细颗粒的酸值为4.0至50.0mgKOH / g。

公开(公告)号：US07794908B2

公开(公告)日：2010-09-14

申请号：US12395792

申请日：2009-03-02

申请人： Takaaki Kaya ,  Shigeto Tamura ,  Ryoichi Fujita ,  Makoto Kambayashi ,  Takeshi Ikeda

发明人： Takaaki Kaya ,  Shigeto Tamura ,  Ryoichi Fujita ,  Makoto Kambayashi ,  Takeshi Ikeda

IPC分类号： G03G9/00

CPC分类号： G03G9/09328 ,  G03G9/0827 ,  G03G9/0835 ,  G03G9/09307 ,  G03G9/09392

摘要： Provided is magnetic toner including capsule type toner particles each having a surface layer (B) on a surface of a toner base particle (A) containing at least a binder resin (a) mainly formed of a polyester, a magnetic substance, and a wax, in which, the surface layer (B) includes a resin (b), and the resin (b) includes a resin selected from the group consisting of a polyester resin (b1), a vinyl resin (b2), and a urethane resin (b3); a glass transition temperature Tg(a) of the binder resin (a) and a glass transition temperature Tg(b) of the resin (b) satisfy a relationship of Tg(a)

摘要翻译： 提供了包含胶囊型调色剂颗粒的磁性调色剂，每个胶囊型调色剂颗粒在至少含有主要由聚酯，磁性物质和蜡形成的粘合剂树脂（a）的调色剂基础颗粒（A）的表面上具有表面层（B） ，其中表面层（B）包括树脂（b），树脂（b）包括选自聚酯树脂（b1），乙烯基树脂（b2）和聚氨酯树脂 （b3）; 粘合剂树脂（a）的玻璃化转变温度Tg（a）和树脂（b）的玻璃化转变温度Tg（b）满足Tg（a）