公开(公告)号：US4950573A

公开(公告)日：1990-08-21

申请号：US121483

申请日：1987-11-17

申请人： Kimitoshi Yamaguchi ,  Kazuhiko Umemura ,  Yoshihiro Nomura

发明人： Kimitoshi Yamaguchi ,  Kazuhiko Umemura ,  Yoshihiro Nomura

IPC分类号： G03G9/08 ,  G03G9/087

CPC分类号： G03G9/0825 ,  G03G9/08751 ,  G03G9/08773

摘要： A toner for developing latent electrostatic images is disclosed, which comprises (a) thermofusible base particles A having a softening point of 80.degree. C. or less, a flow starting temperature of 110.degree. C. or less, and an average particle size of 5 to 25 .mu.m, and (b) small particles B comprising as the main component an organic polymeric material having a softening point at least 5.degree. C. higher than the softening point of the base particles A and no practical softening point, and an average particle size ranging from 0.1 .mu.m or more, but not more than 1/4 of the average particle size of the base particles A, which small particles B are embedded in the surface of the base particles A so as to cover the surface of the base particles A to a depth of less than the particle size of the small particles B.

摘要翻译： 公开了用于显影静电图像的调色剂，其包含（a）软化点为80℃或更低，流动起始温度为110℃或更低，平均粒度为5的热熔性基础颗粒A 至（b）作为主要成分的小粒子B，其含有软化点比基础粒子A的软化点高5℃以上的有机聚合物，没有实用的软化点，平均粒径 粒径为0.1μm以上且不超过基体颗粒A的平均粒径的1/4，该颗粒B被嵌入基体颗粒A的表面，以覆盖基体颗粒A的表面 基础颗粒A的深度小于小颗粒B的粒度。

公开(公告)号：US08877418B2

公开(公告)日：2014-11-04

申请号：US13185941

申请日：2011-07-19

申请人： Hisashi Nakajima ,  Kimitoshi Yamaguchi ,  Shigenori Yaguchi ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Mariko Takii ,  Minoru Masuda ,  Koichi Sakata ,  Saori Yamada ,  Hiroyuki Kishida

发明人： Hisashi Nakajima ,  Kimitoshi Yamaguchi ,  Shigenori Yaguchi ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Mariko Takii ,  Minoru Masuda ,  Koichi Sakata ,  Saori Yamada ,  Hiroyuki Kishida

IPC分类号： G03G15/06 ,  G03G9/113 ,  G03G9/107

CPC分类号： G03G9/1075 ,  G03G9/107 ,  G03G9/1136 ,  G03G9/1137

摘要： The developing method includes developing an electrostatic latent image on an image bearing member with a two-component developer including a toner and a carrier and born on at least one developer bearing member, whose surface moves at a linear speed of from 300 mm/sec to 2,000 mm/sec. The carrier includes a particulate core material; and a cover layer located on a surface of the core material and including a crosslinked material obtained by crosslinking a resin including a first unit having a specific tris(trialkylsiloxy) silyl group and a second unit having a specific alkoxysilyl group having a crosslinking ability. Each of the first unit and the second unit is included in the resin in a molar ratio of from 0.1 to 0.9 based on all the units included in the resin.

摘要翻译： 显影方法包括使用包含调色剂和载体的双组分显影剂在图像承载部件上显影静电潜像，并且在至少一个显影剂承载部件上出现，所述显影剂承载部件的表面以300mm /秒的线速度移动到 2,000毫米/秒。 载体包括颗粒芯材料; 以及位于所述芯材的表面上的覆盖层，并且包括通过使包含具有特定的三（三烷基甲硅烷氧基）甲硅烷基的第一单元和具有交联能力的特定烷氧基甲硅烷基的第二单元的树脂交联而获得的交联材料。 基于树脂中包含的所有单元，第一单元和第二单元中的每一个以包含在树脂中的摩尔比为0.1至0.9。

公开(公告)号：US08663892B2

公开(公告)日：2014-03-04

申请号：US13592626

申请日：2012-08-23

申请人： Shigenori Yaguchi ,  Kimitoshi Yamaguchi ,  Toyoshi Sawada ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Hiroshi Tohmatsu

发明人： Shigenori Yaguchi ,  Kimitoshi Yamaguchi ,  Toyoshi Sawada ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Hiroshi Tohmatsu

IPC分类号： G03G9/113

CPC分类号： G03G9/1075 ,  G03G9/1131 ,  G03G9/1136 ,  G03G9/1139 ,  G03G15/0806

摘要： A latent electrostatic image developing carrier including: core particles each having magnetism; and a coating layer covering each of the core particles, wherein the latent electrostatic image developing carrier has a shape factor SF-2 of 115 to 150 and has a bulk density of 1.8 g/cm3 to 2.4 g/cm3, wherein the core particles have a shape factor SF-2 of 120 to 160 and have an arithmetic mean surface roughness Ra of 0.5 μm to 1.0 μm, and wherein the coating layer contains a resin and a filler and an amount of the filler contained in the coating layer is 50 parts by mass to 500 parts by mass per 100 parts by mass of the resin contained in the coating layer.

摘要翻译： 一种静电潜像显影载体，包括：具有磁性的核心颗粒; 以及覆盖每个核心颗粒的涂层，其中所述静电潜像显影载体的形状因子SF-2为115〜150，体积密度为1.8g / cm 3至2.4g / cm 3，其中所述核心颗粒具有 形状因子SF-2为120〜160，算术平均表面粗糙度Ra为0.5〜1.0μm，其中涂层含有树脂和填料，涂层中含有的填料量为50份 以质量计500质量份/ 100质量份包含在涂层中的树脂。

公开(公告)号：US20110171573A1

公开(公告)日：2011-07-14

申请号：US12978920

申请日：2010-12-27

申请人： Koichi SAKATA ,  Minoru Masuda ,  Hisashi Nakajima ,  Kimitoshi Yamaguchi ,  Yutaka Takahashi ,  Hitoshi Iwatsuki ,  Saori Yamada ,  Toyoaki Tano

发明人： Koichi SAKATA ,  Minoru Masuda ,  Hisashi Nakajima ,  Kimitoshi Yamaguchi ,  Yutaka Takahashi ,  Hitoshi Iwatsuki ,  Saori Yamada ,  Toyoaki Tano

IPC分类号： G03G21/16 ,  G03G9/113 ,  G03G13/20 ,  G03G15/09

CPC分类号： G03G9/1139 ,  G03G9/10 ,  G03G9/1136 ,  G03G13/06 ,  G03G13/08

摘要： A carrier for use in a two component developer for developing an electrostatic latent image is provided. The carrier includes a particulate core material; and a cover layer located on a surface of the core material and including a silicone resin and barium sulfate. The cover layer includes Ba and Si at an atomic ratio of from 0.01 to 0.08 as determined by X-ray photoelectron spectroscopy.

摘要翻译： 提供了用于显影静电潜像的双组分显影剂中的载体。 载体包括颗粒芯材料; 以及覆盖层，其位于所述芯材的表面上，并且包括硅树脂和硫酸钡。 覆盖层包括通过X射线光电子能谱测定的原子比为0.01至0.08的Ba和Si。

公开(公告)号：US20110091802A1

公开(公告)日：2011-04-21

申请号：US12897326

申请日：2010-10-04

申请人： Yutaka TAKAHASHI ,  Minoru Masuda ,  Kimitoshi Yamaguchi ,  Hisashi Nakajima ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Saori Yamada ,  Toyoaki Tano ,  Mariko Takii

发明人： Yutaka TAKAHASHI ,  Minoru Masuda ,  Kimitoshi Yamaguchi ,  Hisashi Nakajima ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Saori Yamada ,  Toyoaki Tano ,  Mariko Takii

IPC分类号： G03G9/10 ,  G03G13/20 ,  G03G21/18

CPC分类号： G03G15/08 ,  G03G9/1075 ,  G03G9/1133 ,  G03G9/1137 ,  G03G9/1139 ,  G03G2215/0602 ,  G03G2215/0607

摘要： The carrier is used for a two-component developer for developing an electrostatic latent image, and includes a particulate magnetic core material; and a cover layer located on a surface of the core material and including a crosslinked material and barium sulfate. The cover layer is formed by applying a coating medium including barium sulfate, a copolymer including a unit (A) having a specific acrylic siloxane structure including a tris(trialkylsiloxy)silanyl group and a unit (B) having a specific acrylic silicone structure having a crosslinking ability, and a condensation reaction catalyst, heating the applied medium to a temperature of from 100° C. to 230° C. so that the copolymer is hydrolyzed to produce a material having a silanol group, and the material and the catalyst are subjected to a condensation reaction to form the crosslinked material.

摘要翻译： 载体用于显影静电潜像的双组分显影剂，并且包括颗粒状磁芯材料; 以及位于所述芯材的表面上并且包含交联材料和硫酸钡的覆盖层。 覆盖层通过涂布包括硫酸钡的涂层介质，包括具有包含三（三烷基甲硅烷氧基）硅烷基的特定丙烯酸硅氧烷结构的单元（A）和具有特定的丙烯酸硅氧烷结构的单元（B））的共聚物形成，所述单元（B）具有 交联能力和缩合反应催化剂，将所施加的介质加热至100℃至230℃的温度，使得共聚物水解以产生具有硅烷醇基团的材料，并且对材料和催化剂进行 进行缩合反应以形成交联材料。

公开(公告)号：US20100068645A1

公开(公告)日：2010-03-18

申请号：US12586304

申请日：2009-09-17

申请人： Hitoshi Iwatsuki ,  Kimitoshi Yamaguchi ,  Minoru Masuda ,  Yutaka Takahashi ,  Koichi Sakata

发明人： Hitoshi Iwatsuki ,  Kimitoshi Yamaguchi ,  Minoru Masuda ,  Yutaka Takahashi ,  Koichi Sakata

IPC分类号： G03G9/107 ,  G03G9/113 ,  G03G13/20 ,  G03G21/18

CPC分类号： G03G9/1131 ,  G03G9/1075 ,  G03G9/1139 ,  G03G2215/0602

摘要： A carrier for developing an electrostatic latent image which includes a core material and a resin coating layer provided on the core material. The resin coating layer includes a resin and a particulate tin oxide, and the surface of the particulate tin oxide is coated with carbon.

摘要翻译： 用于显影静电潜像的载体，其包括芯材和设置在芯材上的树脂涂层。 树脂涂层包括树脂和颗粒状氧化锡，并且颗粒状氧化锡的表面被碳涂覆。

公开(公告)号：US20090092920A1

公开(公告)日：2009-04-09

申请号：US12282077

申请日：2007-03-06

申请人： Masashi Nagayama ,  Kimitoshi Yamaguchi ,  Naoki Imahashi

发明人： Masashi Nagayama ,  Kimitoshi Yamaguchi ,  Naoki Imahashi

IPC分类号： G03G9/107 ,  G03G13/08

CPC分类号： G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/107 ,  G03G9/1131 ,  G03G9/1135 ,  G03G9/1136 ,  G03G9/1137 ,  G03G9/1139 ,  G03G15/20

摘要： The present invention is to provide a carrier and a developer, which have fewer occurrences of carrier adhesion and background smear, excellent granularity and longer durability. The carrier comprises the core material particles having magnetism and resin coating layer covering the core material particles, and wherein the weight average particle diameters is in the range of 22 m to 32 m, the proportion of the weight average particle diameters relative to the number average particle diameter is in the range of 1.00 to 1.20, the content of particles having a diameter of 20 m or smaller is 7% by mass, the content of carrier particles having a diameter of 36 m or smaller is in the range of 90% by mass to 100% by mass, and the proportion of the particle density of the core material particles is in the range of 85% to 100% of the true density of the core material particles.

摘要翻译： 本发明提供一种载体和显影剂，其具有较少的载体粘附和背景涂片的出现，优异的粒度和更长的耐久性。 载体包括具有覆盖芯材颗粒的磁性和树脂涂层的芯材颗粒，并且其中重均粒径在22μm至32μm的范围内，重均粒径相对于数均分子的比例 粒径在1.00〜1.20的范围内，直径20μm以下的粒子的含量为7质量％，直径为36μm以下的载体粒子的含量为90％以下 质量至100质量％，芯材颗粒的颗粒密度的比例在芯材颗粒的真密度的85％至100％的范围内。

公开(公告)号：US06599672B2

公开(公告)日：2003-07-29

申请号：US10225165

申请日：2002-08-22

申请人： Kimitoshi Yamaguchi ,  Akihiro Kotsugai

发明人： Kimitoshi Yamaguchi ,  Akihiro Kotsugai

IPC分类号： G03G500

CPC分类号： G03G9/107 ,  G03G9/1075 ,  G03G9/1136

摘要： A carrier for an image developer for electrophotography, including core particles, and a coating layer covering each of the core particles, wherein the core particles have a weight average particle diameter of Dv which is 25-45 &mgr;m and a number average particle diameter of Dp which meets with the following condition: 1≦Dv/Dp≦1.3, wherein the core particles have such a particle size distribution that particles having a particle diameter of less than 44 &mgr;m is at least 70% by weight and particles having a particle diameter of less than 22 &mgr;m is not more than 7% by weight.

公开(公告)号：US5102766A

公开(公告)日：1992-04-07

申请号：US496458

申请日：1990-03-20

申请人： Toshiki Nanya ,  Kimitoshi Yamaguchi ,  Hiromitsu Kawase ,  Makoto Ookawara

发明人： Toshiki Nanya ,  Kimitoshi Yamaguchi ,  Hiromitsu Kawase ,  Makoto Ookawara

IPC分类号： G03G9/097

CPC分类号： G03G9/09766

摘要： A toner for developing latent electronstatic images comprises a coloring agent, a binder resin component and a negative charge controlling agent in an effective amount which is selected from the group consisting of:(i) an aromatic fluoride having formule (I); ##STR1## (ii) an aromatic fluoride having formula (II); ##STR2## (iii) an aromatic fluoride having formula (III); ##STR3## (iv) an aromatic fluoride having formula (IV); and ##STR4## (v) an aromatic fluoride having formula (V). ##STR5## wherein R.sup.1 to R.sup.8, R.sup.f1 and R.sup.f2, n, X and Y are the same as previously defined in the specification.

摘要翻译： 用于显影潜伏静电图像的调色剂包括有效量的着色剂，粘合剂树脂组分和负电荷控制剂，其选自：（i）具有结构（I）的芳族氟化物; （I）（ii）具有式（II）的芳族氟化物; （II）（iii）具有式（III）的芳族氟化物; （III）（iv）具有式（IV）的芳族氟化物; （IV）（v）具有式（V）的芳族氟化物。 （V）其中R1至R8，Rf1和Rf2，n，X和Y与说明书中先前定义的相同。

公开(公告)号：US5085965A

公开(公告)日：1992-02-04

申请号：US496210

申请日：1990-03-20

申请人： Toshiki Nanya ,  Kimitoshi Yamaguchi ,  Kazuo Tsubuko ,  Toshihiko Takahashi ,  Hiromitsu Kawase ,  Makoto Ookawara

发明人： Toshiki Nanya ,  Kimitoshi Yamaguchi ,  Kazuo Tsubuko ,  Toshihiko Takahashi ,  Hiromitsu Kawase ,  Makoto Ookawara

IPC分类号： C08F20/30 ,  C08F20/36 ,  G03G9/087

CPC分类号： C08F20/30 ,  C08F20/36 ,  G03G9/08728

摘要： A negatively chargeable toner for developing latent electrostatic images comprising a coloring agent, a resin component which comprises a homopolymer of a first monomer having formula (I) or a copolymer of the aforementioned first monomer and a second monomer: ##STR1## wherein R.sup.1 represents --H or --CH.sub.3 ; R.sup.2 and R.sup.3 each represent --CN, --COOH or --NO.sub.2 ; R.sup.4 represents --F, --Cl or --Br; and n is an integer of 1 to 10.

摘要翻译： 一种用于显影静电潜像的带负电荷的调色剂，包括着色剂，包含具有式（I）的第一单体的均聚物或上述第一单体和第二单体的共聚物的均聚物的树脂组分：其中 R1表示-H或-CH3; R2和R3各自表示-CN，-COOH或-NO 2; R4表示-F，-Cl或-Br; n为1〜10的整数。