公开(公告)号：US06911289B2

公开(公告)日：2005-06-28

申请号：US09965826

申请日：2001-10-01

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： G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/097 ,  G03G9/10 ,  G03G15/08 ,  G03G15/20

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： 包括调色剂颗粒的调色剂包括粘合剂树脂和脱模剂，其中当施加478kg / cm 2压力的调色剂成型为板时，调色剂板具有表面具有 静摩擦系数为0.20〜0.40。 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;以及定影剂，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：US06811944B2

公开(公告)日：2004-11-02

申请号：US10786549

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： G03G1520

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.

公开(公告)号：US06544704B1

公开(公告)日：2003-04-08

申请号：US10231252

申请日：2002-08-30

申请人： Hiroaki Matsuda ,  Masanori Suzuki ,  Akemi Sugiyama ,  Hiroto Higuchi ,  Tsunemi Sugiyama ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Kumi Hasegawa

发明人： Hiroaki Matsuda ,  Masanori Suzuki ,  Akemi Sugiyama ,  Hiroto Higuchi ,  Tsunemi Sugiyama ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Kumi Hasegawa

IPC分类号： G03G9087

CPC分类号： G03G9/08795 ,  G03G9/107

摘要： A two-component developer comprises a toner which contains at least a resin and a colorant and to which an external additive is added, and a carrier. The toner has a number average molecular weight (Mn) not greater than 3,000 and contains particles having a molecular weight not greater than 1,000 in an amount not less than 40 number %. The carrier satisfies the relation 3,000,000≦&sgr;1000×Dc3≦20,000,00  (1) where &sgr;1000 represents a magnetization (emu/g) of the carrier at 1,000 oersted, and Dc represents a volume average particle diameter (&mgr;m) of the carrier.

摘要翻译： 双组分显影剂包括至少包含树脂和着色剂并且添加有外部添加剂的调色剂和载体。 调色剂的数均分子量（Mn）不大于3,000，并且含有不小于40数量％的分子量不大于1,000的颗粒。 载体满足关系，其中σ1000表示载体在1,000奥斯特的磁化强度（emu / g），Dc表示载体的体积平均粒径（mum）。

公开(公告)号：US06258502B1

公开(公告)日：2001-07-10

申请号：US09579133

申请日：2000-05-30

申请人： Yasushi Nakamura ,  Noboru Kuroda ,  Ryoichi Ito ,  Yasuaki Iwamoto ,  Kohki Katoh ,  Yoshihiro Sugiyama ,  Kenichi Uehara ,  Tomio Kondou

发明人： Yasushi Nakamura ,  Noboru Kuroda ,  Ryoichi Ito ,  Yasuaki Iwamoto ,  Kohki Katoh ,  Yoshihiro Sugiyama ,  Kenichi Uehara ,  Tomio Kondou

IPC分类号： G03G9097

CPC分类号： G03G9/0819 ,  G03G9/09708 ,  G03G9/107

摘要： A two-component developer includes a magnetic carrier including magnetic carrier particles with an average particle diameter of 35 &mgr;m to 100 &mgr;m, and a toner including toner particles with a weight-average particle diameter of 6.0 &mgr;m to 11.5 &mgr;m, to which at least one additive is externally added thereto in an amount of 0.3 to 1.5 wt. % to the toner, the toner particles including (a) toner particles with a particle diameter of 5 &mgr;m or less with a content ratio of 15% or less by number, and (b) toner particles with such a particle diameter that is two times or greater than the weight-average particle diameter of the toner particles with a content ratio of 5% or less by volume, the toner particles satisfying a relationship of 0.60≦D25/D75≦0.85 as defined in the specification. A container in which the two-component developer is contained, and an electrophotographic image formation apparatus in which the container is incorporated are proposed.

摘要翻译： 双组分显影剂包括磁性载体，其包括平均粒径为35μm至100μm的磁性载体颗粒，以及包含重均粒径为6.0μm至11.5μm的调色剂颗粒的调色剂，至少一个 添加剂的外部添加量为0.3〜1.5重量％。 调色剂颗粒包括（a）粒径为5μm或更小的调色剂颗粒，含量比例为15％以下，（b）具有两倍粒径的调色剂颗粒 或大于含有率为5体积％以下的调色剂颗粒的重均粒径，调色剂颗粒满足说明书中定义的0.60 <= D25 / D75 <= 0.85的关系。 提出了容纳双组分显影剂的容器和其中装入容器的电子照相图像形成装置。

公开(公告)号：US5514511A

公开(公告)日：1996-05-07

申请号：US274019

申请日：1994-07-12

申请人： Yasuaki Iwamoto ,  Toshiki Nanya

发明人： Yasuaki Iwamoto ,  Toshiki Nanya

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

CPC分类号： G03G9/08755 ,  G03G9/0821 ,  G03G9/087 ,  G03G9/08711 ,  G03G9/08766 ,  G03G9/08795 ,  G03G9/09766

摘要： A toner for developing latent electrostatic images including a coloring agent, and a binder resin composition having resin particles, each resin particle having a matrix and domain particles with an average particle diameter of 0.5 to 2.0 .mu.m dispersed in the matrix; with the toner having such rheological characteristics that the storage elastic modulus (G') thereof at 80.degree. to 100.degree. C. under a frequency of 100 Hz is in the range of 5.times.10.sup.6 to 5.times.10.sup.7 dyne/cm.sup.2, and the loss elastic modulus (G") thereof at 200.degree. to 220.degree. C. under a frequency of 100 Hz is in the range of 1.times.10.sup.3 to 1.times.10.sup.5 dyne/cm.sup.2.

摘要翻译： 用于显影静电潜像的调色剂，包括着色剂和具有树脂颗粒的粘合剂树脂组合物，每个树脂颗粒具有基质和分散在基质中的平均粒径为0.5-2.0μm的结晶粒子; 调色剂具有这样的流变特性，使得其在100Hz的频率下在80℃至100℃的储能弹性模量（G'）在5×10 6至5×10 7达因/ cm 2的范围内，并且损耗弹性模量（G ''）在200〜220℃下，频率为100Hz的范围为1×10 3〜1×105达因/ cm 2。

公开(公告)号：US5314777A

公开(公告)日：1994-05-24

申请号：US076406

申请日：1993-06-14

申请人： Kazuhito Watanabe ,  Toshiki Nanya ,  Yasuaki Iwamoto

发明人： Kazuhito Watanabe ,  Toshiki Nanya ,  Yasuaki Iwamoto

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G9/09

CPC分类号： G03G9/08711 ,  G03G9/08755 ,  G03G9/09733 ,  G03G9/09766

摘要： A negatively chargeable toner for developing latent electrostatic images is composed of a coloring agent; releasing agent; a binder resin including a polyester and a styrene - acryl-based polymer component with a weight-average molecular weight of 50,000 to 150,000, a number-average molecular weight of 2,000 to 12,000, and a glass transition temperature of 55.degree. to 70.degree. C. at a mixing ratio by weight in the range of (95:5) to (50:50); and a charge controlling agent including at least one phthalic ester which is mixed with the styrene - acryl-based polymer component, and at least one fluorine-containing quaternary ammonium salt.

摘要翻译： 用于显影静电潜像的负带电调色剂由着色剂组成; 脱模剂; 包括重均分子量为50,000〜150,000的聚酯和苯乙烯 - 丙烯酸类聚合物组分的粘合剂树脂，数均分子量为2,000至12,000，玻璃化转变温度为55至70℃ （95:5）至（50:50）范围内的重量混合比; 以及包含至少一种与苯乙烯 - 丙烯酸类聚合物组分混合的邻苯二甲酸酯和至少一种含氟季铵盐的电荷控制剂。

公开(公告)号：US5225303A

公开(公告)日：1993-07-06

申请号：US771124

申请日：1991-10-03

申请人： Masami Tomita ,  Toshiki Nanya ,  Yasuaki Iwamoto

发明人： Masami Tomita ,  Toshiki Nanya ,  Yasuaki Iwamoto

IPC分类号： G03G9/087

CPC分类号： G03G9/08706 ,  G03G9/08782

摘要： A dry-type toner for electrophotography composed of a binder resin, a coloring agent, and a release agent which contains as the main components a carnauba wax substantially free of free aliphatic acids and/or a montan ester wax, and an oxidized rice wax with an acid value of 10 to 30.

摘要翻译： 以粘合剂树脂，着色剂和脱模剂为主要成分的基于不含游离脂肪酸和/或褐煤蜡的巴西棕榈蜡作为主要成分的干燥型电子照相调色剂，和含有 酸值为10〜30。

公开(公告)号：US20120264043A1

公开(公告)日：2012-10-18

申请号：US13513044

申请日：2010-12-01

申请人： Naohiro Watanabe ,  Naohito Shimota ,  Yasuaki Iwamoto ,  Masana Shiba ,  Satoshi Kojima

发明人： Naohiro Watanabe ,  Naohito Shimota ,  Yasuaki Iwamoto ,  Masana Shiba ,  Satoshi Kojima

IPC分类号： G03G9/087

CPC分类号： G03G9/08782 ,  G03G9/0806 ,  G03G9/0821 ,  G03G9/08795 ,  G03G9/08797

摘要： An electrostatic image developing toner including: a binder resin; a colorant; and a wax, wherein the intensity ratio of an absorbance at 2,850 cm−1 derived from the wax to an absorbance at 828 cm−1 derived from the binder resin, represented by “absorbance derived from the wax/absorbance derived from the binder resin”, is in the range of 0.1 to 0.5, where the absorbances are measured by FTIR-ATR, and the intensity ratio serves as a value for determining the amount of the wax present within 0.3 μm in depth from surfaces of particles of the toner after the toner has been heated to 140° C. and then cooled, and wherein the toner has a storage elastic modulus of 5,000 Pa or greater at 140° C.

摘要翻译： 一种静电图像显影调色剂，包括：粘合剂树脂; 着色剂 蜡，其中衍生自蜡的2,850cm -1处的吸光度与由粘合剂树脂衍生的828cm -1处的吸光度的强度比由衍生自蜡的吸光度/衍生自粘合剂树脂的吸光度表示的吸光度为 在0.1至0.5的范围内，其中通过FTIR-ATR测量吸光度，并且强度比用作用于确定调色剂具有的调色剂颗粒表面之后在0.3μm范围内存在的蜡的量的值 加热至140℃，然后冷却，其中调色剂在140℃下的储能弹性模量为5000Pa以上。

公开(公告)号：US20110255899A1

公开(公告)日：2011-10-20

申请号：US13086007

申请日：2011-04-13

申请人： Yasuaki Iwamoto ,  Naohito Shimota ,  Naohiro Watanabe ,  Satoshi Kojima ,  Masana Shiba

发明人： Yasuaki Iwamoto ,  Naohito Shimota ,  Naohiro Watanabe ,  Satoshi Kojima ,  Masana Shiba

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

CPC分类号： G03G9/08782 ,  G03G9/0804 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner, including a binder; a colorant; and a wax including a molecular chain constituted of only a C—H bond and a C—C bond, and having a melting point of from 50 to 78° C. and a melt viscosity of from 5 to 15 mPa·S at 140° C., wherein the toner has a weight reduction rate of from 0.001 to 0.1% by weight/min when measured by TGA (Thermogarvimetric Analysis) method in an atmosphere at 165° C. for 10 min.

摘要翻译： 一种调色剂，包括粘合剂; 着色剂 包括仅由C-H键和C-C键构成的分子链，熔点为50〜78℃，熔融粘度为5〜15mPa·S的蜡在140℃ 其中调色剂在165℃，10分钟的气氛下，通过TGA（Thermogarvimetric Analysis）法测定重量减少率为0.001〜0.1％（重量/分）。

公开(公告)号：US08007974B2

公开(公告)日：2011-08-30

申请号：US11943929

申请日：2007-11-21

申请人： Shinya Nakayama ,  Akihiro Kotsugai ,  Yasuaki Iwamoto ,  Yasutada Shitara

发明人： Shinya Nakayama ,  Akihiro Kotsugai ,  Yasuaki Iwamoto ,  Yasutada Shitara

IPC分类号： G03G9/097

CPC分类号： G03G9/09783 ,  G03G9/0823 ,  G03G9/08755 ,  G03G9/08775 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner that is excellent in low-temperature fixing property, offset resistance, storage stability, charge rising property, charge stability with time and pulverizability and allows for forming high-quality images over a long period of time. The toner contains at least a binder resin, a colorant and a charge controlling agent, wherein the charge controlling agent contains an aromatic oxycarboxylic acid metal compound having a trivalent or more central metal, the binder resin comprises a polyester resin (A) having a softening point Tm (A) of 120° C. to 160° C. and a polyester resin (B) having a softening point Tm (B) of 80° C. to less than 120° C., and at least any one of the polyester resins (A) and (B) contains 1,2-propane diol at 65 mol % or more in a divalent alcohol component and can be obtained by condensation polymerizing an alcohol component substantially composed of only an aliphatic alcohol with a carboxylic acid component.

摘要翻译： 具有优异的低温定影性，抗偏移性，储存稳定性，电荷上升性，电荷稳定性随时间和粉碎性并且允许长时间形成高质量图像的调色剂。 调色剂至少含有粘合剂树脂，着色剂和电荷控制剂，其中电荷控制剂含有具有三价或更多中心金属的芳族羟基羧酸金属化合物，粘合剂树脂包括具有软化的聚酯树脂（A） 点Tm（A）为120℃〜160℃，软化点Tm（B）为80℃以上且小于120℃的聚酯树脂（B）为至少 聚酯树脂（A）和（B）含有在二价醇成分中为65摩尔％以上的1,2-丙二醇，可以通过将基本上仅由脂肪醇构成的醇成分与羧酸成分进行缩聚而得到。