公开(公告)号：US06924073B2

公开(公告)日：2005-08-02

申请号：US10329538

申请日：2002-12-27

申请人： Hiroto Higuchi ,  Mitsuo Aoki ,  Fumihiro Sasaki ,  Naohito Shimota ,  Kumi Hasegawa ,  Bing Shu ,  Maiko Kondo ,  Shinya Nakayama

发明人： Hiroto Higuchi ,  Mitsuo Aoki ,  Fumihiro Sasaki ,  Naohito Shimota ,  Kumi Hasegawa ,  Bing Shu ,  Maiko Kondo ,  Shinya Nakayama

IPC分类号： G03G9/087 ,  G03G9/08

CPC分类号： G03G9/08755 ,  G03G9/08766 ,  G03G9/08782 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner for developing an electrostatic latent image, comprising a colorant, a releasing agent and a binder resin, wherein said binder resin comprises a first, non-linear resin, a second, linear resin, and a modified wax comprising a wax moiety and a vinyl polymer moiety having an ester group content of 8 to 30% by weight based on the weight of the vinyl polymer moiety.

摘要翻译： 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，其中所述粘合剂树脂包括第一非线性树脂，第二线型树脂和包含蜡部分和 基于乙烯基聚合物部分的重量，酯基含量为8〜30重量％的乙烯基聚合物部分。

公开(公告)号：US07029816B2

公开(公告)日：2006-04-18

申请号：US10871009

申请日：2004-06-21

申请人： Fumihiro Sasaki ,  Mitsuo Aoki ,  Yasuaki Iwamoto ,  Naohito Shimota ,  Kazuyuki Yazaki ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Kumi Hasegawa ,  Shinichiro Yagi ,  Hiroto Higuchi ,  Akemi Sugiyama

发明人： Fumihiro Sasaki ,  Mitsuo Aoki ,  Yasuaki Iwamoto ,  Naohito Shimota ,  Kazuyuki Yazaki ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Kumi Hasegawa ,  Shinichiro Yagi ,  Hiroto Higuchi ,  Akemi Sugiyama

IPC分类号： G03G15/16

CPC分类号： G03G5/005 ,  G03G9/0827 ,  G03G13/16

摘要： An image formation method includes the steps of charging the surface of an electrophotographic photoconductor, exposing the charged photoconductor to a light image to form a latent electrostatic image on the photoconductor, developing the latent electrostatic image using a two-component developer containing a toner and a carrier to obtain a toner image, and transferring the toner image to an image receiving material directly or via an intermediate transfer member, with the photoconductor showing a surface friction coefficient of 0.40 or less, and the toner having toner particles with an average circularity of 0.930 or more.

摘要翻译： 图像形成方法包括以下步骤：对电子照相感光体的表面进行充电，将带电的感光体暴露于光图像以在感光体上形成静电潜像，使用含有调色剂的双组分显影剂和 载体以获得调色剂图像，并且将调色剂图像直接或经由中间转印部件转印到图像接收材料上，其中光电导体的表面摩擦系数为0.40或更小，并且调色剂具有平均圆形度为0.930的调色剂颗粒 或者更多。

公开(公告)号：US06667141B2

公开(公告)日：2003-12-23

申请号：US10077752

申请日：2002-02-20

申请人： Yasuaki Iwamoto ,  Fumihiro Sasaki ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Bing Shu ,  Maiko Kondo

发明人： Yasuaki Iwamoto ,  Fumihiro Sasaki ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Bing Shu ,  Maiko Kondo

IPC分类号： G03G1316

CPC分类号： G03G9/0821 ,  G03G9/0819 ,  G03G9/08795 ,  G03G13/025 ,  G03G2215/021

摘要： An image forming method and apparatus, wherein a surface of a photoconductor is charged with a contact-type charging roller having a surface roughness of 2-40 &mgr;m, and exposed imagewise to form an electrostatic latent image thereon, the latent image being developed with a toner, transferred to a transfer member and fixed, and wherein the toner comprises a colorant, and a binder resin containing a tetrahydrofuran-soluble component having such a molecular weight distribution that at least one peak having a half width not greater than 15,000 is present between 1,000 and 10,000 when measured by gel permeation chromatography.

公开(公告)号：US07455942B2

公开(公告)日：2008-11-25

申请号：US11227566

申请日：2005-09-16

申请人： Tsuneyasu Nagatomo ,  Akihiro Kotsugai ,  Hiroshi Yamashita ,  Masayuki Ishii ,  Hiroto Higuchi ,  Osamu Uchinokura ,  Satoshi Mochizuki ,  Fumihiro Sasaki ,  Hisashi Nakajima ,  Hideki Sugiura ,  Yasuo Asahina ,  Shinya Nakayama ,  Koichi Sakata ,  Tomoyuki Ichikawa ,  Takuya Saito ,  Sonoh Matsuoka

发明人： Tsuneyasu Nagatomo ,  Akihiro Kotsugai ,  Hiroshi Yamashita ,  Masayuki Ishii ,  Hiroto Higuchi ,  Osamu Uchinokura ,  Satoshi Mochizuki ,  Fumihiro Sasaki ,  Hisashi Nakajima ,  Hideki Sugiura ,  Yasuo Asahina ,  Shinya Nakayama ,  Koichi Sakata ,  Tomoyuki Ichikawa ,  Takuya Saito ,  Sonoh Matsuoka

IPC分类号： G03G9/08

CPC分类号： G03G9/097

摘要： It is an object of the present invention to provide a toner that can sustain favorable transferability and cleaning ability for prolonged periods; prevent photoconductor filming; exhibit no variation in image nonuniformity or external additive immersion induced by developer agitation at the time of use; excels in stability with flowability and charge stability over prolonged periods. Therefore, provided is the toner of which the quantity of aggregate of residual external additives found on the sieve of 635-mesh and 452 cm2 of mesh area, after 0.2 g of the toner on the sieve is blasted with air at a blow pressure of 0.2 MPa from 160 mm above the sieve while being air-suctioned at a suction force of 5 mmHg, and then air-suctioned at a suction force of 20 mmHg, is 4,500 or less and 5 or more.

摘要翻译： 本发明的一个目的是提供一种能够延长期间的转印性和清洁能力的调色剂。 防止感光膜成膜; 在使用时不显示由显影剂搅拌引起的图像不均匀性或外部添加剂浸渍的变化; 在长时间内具有流动性和电荷稳定性的稳定性。 因此，提供了在筛上的0.2g调色剂之后，在筛网上存在635目筛和452cm 2网眼面积的残余外部添加剂骨料数量的调色剂 在空气中以160mm的筛子空气吹压压力为0.2MPa，同时以5mmHg的抽吸力空气抽吸，然后以20mmHg的抽吸力空气抽吸为4,500以下且5以上。

公开(公告)号：US06813461B2

公开(公告)日：2004-11-02

申请号：US10786548

申请日：2004-02-26

申请人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Bing Shu ,  Hiroaki Matsuda ,  Maiko Kondo

发明人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Bing Shu ,  Hiroaki Matsuda ,  Maiko Kondo

IPC分类号： G03G1508

CPC分类号： G03G9/08782 ,  G03G9/0808

摘要： A toner including toner particles including a binder resin and a release agent, wherein when the toner is molded into a plate upon application of a pressure of 478 kg/cm2, the toner plate has a surface having a coefficient of static friction of from 0.20 to 0.40. An image forming apparatus including an image bearing member, an image developer to form a toner image on the image bearing member, an image transferer configured to transfer the toner image on a receiving material and a fixer configured to fix the toner image thereon, wherein the apparatus has a waiting time not longer than 15 seconds, and a maximum power consumption not greater than 1.5 KW and 30 W in an image forming state and in a standby state, respectively, wherein the toner is the toner mentioned above.

摘要翻译： 一种调色剂，包括包含粘合剂树脂和脱模剂的调色剂颗粒，其中当施加478kg / cm 2的压力将调色剂模塑成板时，调色剂板具有具有静态摩擦系数 从0.20到0.40。 一种图像形成装置，包括图像承载部件，图像显影剂，以在图像承载部件上形成调色剂图像;图像转印器，被配置为将调色剂图像转印在接收材料上;以及定影器，其被配置为将调色剂图像固定在其上， 设备具有不超过15秒的等待时间，在图像形成状态和待机状态下的最大功耗不大于1.5KW和30W，其中调色剂是上述调色剂。

公开(公告)号：US06593048B2

公开(公告)日：2003-07-15

申请号：US09982877

申请日：2001-10-22

申请人： Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Hyou Shu ,  Maiko Kondo

发明人： Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Hyou Shu ,  Maiko Kondo

IPC分类号： G03G9083

CPC分类号： G03G9/1075 ,  G03G9/083 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/0837 ,  G03G9/0839 ,  G03G9/0904 ,  G03G9/113 ,  G03G9/1131 ,  G03G9/1139

摘要： A two-component developer includes at least a magnetic toner and a magnetic carrier. The magnetic toner has magnetic particles coated with a carbon black layer. The magnetic toner adheres to the magnetic carrier due to the magnetic interaction.

摘要翻译： 双组分显影剂至少包括磁性调色剂和磁性载体。 磁性调色剂具有涂覆有炭黑层的磁性颗粒。 由于磁性相互作用，磁性调色剂粘附到磁性载体上。

公开(公告)号：US06873814B2

公开(公告)日：2005-03-29

申请号：US10285636

申请日：2002-11-01

申请人： Tokuya Ohjimi ,  Fumihiro Sasaki ,  Hiroto Higuchi ,  Maiko Kondo ,  Toshio Koike ,  Atsushi Sampe ,  Masayuki Yamane ,  Kunihiro Ohyama ,  Junichi Sano ,  Takeyoshi Sekine

发明人： Tokuya Ohjimi ,  Fumihiro Sasaki ,  Hiroto Higuchi ,  Maiko Kondo ,  Toshio Koike ,  Atsushi Sampe ,  Masayuki Yamane ,  Kunihiro Ohyama ,  Junichi Sano ,  Takeyoshi Sekine

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G13/09 ,  G03G15/08

CPC分类号： G03G9/083 ,  G03G9/0819 ,  G03G9/0838 ,  G03G13/09

摘要： A developing device including a developer containing magnetic toner grains and includes a main pole for development disposed in a sleeve. Flux density generated by the magnetic pole in a direction normal to the surface of the sleeve outside of the surface has an attenuation ratio of 50% or above. The toner grains have a weight mean grain size of 6.0 μm to 8.0 μm while the toner grains having grain sizes of 5 μm and below occupy 40% to 80% of the entire developer. The toner grains have magnetization strength of 10 emu/g to 25 emu/g in a magnetic field of 5 kOe or magnetization strength of 7 emu/g to 20 emu/g in a magnetic field of 1 kOe. The toner grains reduce toner scattering and image defects despite that they are magnetic, thereby implementing ultrahigh resolution.

摘要翻译： 一种显影装置，包括含有磁性调色剂颗粒的显影剂，并且包括设置在套筒中的用于显影的主极。 磁极在垂直于表面外表面的方向上产生的磁通密度具有50％以上的衰减比。 调色剂颗粒具有6.0μm至8.0μm的重均粒度，而具有5μm以下的颗粒尺寸的调色剂颗粒占整个显影剂的40％至80％。 在1kOe的磁场中，调色剂颗粒在5kOe的磁场或7emu / g至20emu / g的磁场中具有10emu / g至25emu / g的磁化强度。 调色剂颗粒虽然是磁性的而减少了调色剂的散射和图像缺陷，从而实现了超高分辨率。

公开(公告)号：US06835517B2

公开(公告)日：2004-12-28

申请号：US10151103

申请日：2002-05-21

申请人： Maiko Kondo ,  Yasuaki Iwamoto ,  Fumihiro Sasaki ,  Hiroto Higuchi ,  Bing Shu ,  Yasushi Koichi

发明人： Maiko Kondo ,  Yasuaki Iwamoto ,  Fumihiro Sasaki ,  Hiroto Higuchi ,  Bing Shu ,  Yasushi Koichi

IPC分类号： G03G9087

CPC分类号： G03G9/08782 ,  G03G9/09783

摘要： A toner including at least a binder resin; a colorant; a charge controlling agent; and a wax (B), in which the charge controlling agent comprises a compound selected from the group consisting of: an aromatic oxycarboxylic acids, derivatives of aromatic oxycarboxylic acid, salts of aromatic oxycarboxylic acids and salts of derivatives of aromatic oxycarboxylic acids; and a zirconium compound (A), and in which the zirconium compound (A) and the wax (B) have a weight ratio (A/B) satisfying the following relationship: 3.0≦(A/B)×100≦60.0

摘要翻译： 包含至少粘合剂树脂的调色剂; 着色剂;电荷控制剂; 和蜡（B），其中电荷控制剂包含选自以下的化合物：芳族羟基羧酸，芳族羟基羧酸的衍生物，芳族羟基羧酸的盐和芳族羟基羧酸的衍生物的盐; 锆化合物（A），其中锆化合物（A）和蜡（B）的重量比（A / B）满足以下关系：

公开(公告)号：US06699632B2

公开(公告)日：2004-03-02

申请号：US09996585

申请日：2001-11-30

申请人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Bing Shu ,  Maiko Kondo

发明人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Bing Shu ,  Maiko Kondo

IPC分类号： G03G908

CPC分类号： G03G15/5004 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08795 ,  G03G13/20 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2038 ,  G03G2215/2041

摘要： An image forming toner is provided, including at least: a binder resin; a colorant; and a release agent, wherein a volume-average particle diameter of the toner measured by a Coulter counter is from 5 to 8 &mgr;m; the content of the toner having a volume-average particle diameter of not greater than 5 &mgr;m is 60 to 75% by number; and the content of the toner having a number-basis circle-equivalent particle diameter of from 0.6 to 3 &mgr;m measured by a flow-type particle image analyzer is not greater than 25%.

摘要翻译： 提供一种图像形成调色剂，至少包括：粘合剂树脂; 着色剂 和脱模剂，其中由库尔特计数器测量的调色剂的体积平均粒径为5至8μm; 体积平均粒径为5μm以下的调色剂的含量为60〜75数量％ 并且通过流动型粒子图像分析仪测量的数量基圆当量粒径为0.6〜3μm的调色剂的含量不大于25％。

公开(公告)号：US20060063081A1

公开(公告)日：2006-03-23

申请号：US11227566

申请日：2005-09-16

申请人： Tsuneyasu Nagatomo ,  Akihiro Kotsugai ,  Hiroshi Yamashita ,  Masayuki Ishii ,  Hiroto Higuchi ,  Osamu Uchinokura ,  Satoshi Mochizuki ,  Fumihiro Sasaki ,  Hisashi Nakajima ,  Hideki Sugiura ,  Yasuo Asahina ,  Shinya Nakayama ,  Koichi Sakata ,  Tomoyuki Ichikawa ,  Takuya Saito ,  Sonoh Matsuoka

发明人： Tsuneyasu Nagatomo ,  Akihiro Kotsugai ,  Hiroshi Yamashita ,  Masayuki Ishii ,  Hiroto Higuchi ,  Osamu Uchinokura ,  Satoshi Mochizuki ,  Fumihiro Sasaki ,  Hisashi Nakajima ,  Hideki Sugiura ,  Yasuo Asahina ,  Shinya Nakayama ,  Koichi Sakata ,  Tomoyuki Ichikawa ,  Takuya Saito ,  Sonoh Matsuoka

IPC分类号： G03G9/08

CPC分类号： G03G9/097

摘要： It is an object of the present invention to provide a toner that can sustain favorable transferability and cleaning ability for prolonged periods; prevent photoconductor filming; exhibit no variation in image nonuniformity or external additive immersion induced by developer agitation at the time of use; excels in stability with flowability and charge stability over prolonged periods. Therefore, provided is the toner of which the quantity of aggregate of residual external additives found on the sieve of 635-mesh and 452 cm2 of mesh area, after 0.2 g of the toner on the sieve is blasted with air at a blow pressure of 0.2 MPa from 160 mm above the sieve while being air-suctioned at a suction force of 5 mmHg, and then air-suctioned at a suction force of 20 mmHg, is 4,500 or less and 5 or more.

摘要翻译： 本发明的一个目的是提供一种能够延长期间的转印性和清洁能力的调色剂。 防止感光膜成膜; 在使用时不显示由显影剂搅拌引起的图像不均匀性或外部添加剂浸渍的变化; 在长时间内具有流动性和电荷稳定性的稳定性。 因此，提供了在筛上的0.2g调色剂之后，在筛网上存在635目筛和452cm 2网眼面积的残余外部添加剂骨料数量的调色剂 在空气中以160mm的筛子空气吹压压力为0.2MPa，同时以5mmHg的抽吸力空气抽吸，然后以20mmHg的抽吸力空气抽吸为4,500以下且5以上。