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1. 发明授权

US06455218B2 Developer for electrostatic image development and image forming method using the same 有权
标题翻译：用于静电图像显影的显影剂和使用其的图像形成方法
公开(公告)号：US06455218B2
公开(公告)日：2002-09-24
申请号：US09875176
申请日：2001-06-07
申请人： Takeshi Isonaka , Toshiro Kogawara , Katsunori Ohba , Shinji Amaya
发明人： Takeshi Isonaka , Toshiro Kogawara , Katsunori Ohba , Shinji Amaya
IPC分类号： G03G9113
CPC分类号： G03G9/09733 , G03G9/0906 , G03G9/09741 , G03G9/0975 , G03G9/10 , G03G9/1075 , G03G9/1131 , G03G9/1132 , G03G9/1139
摘要： The present invention relates to a developer for electrostatic image development comprising: a toner for electrostatic image development which comprises a resin and a colorant; and a carrier formed by a carrier core material and a resin layer including a resistance control agent which is formed on the surface of the carrier core material, wherein the resin layer of the carrier has a concentration gradient of the resistance control agent toward the thickness direction of the resin layer, a concentration of the resistance control agent is the highest in the vicinity of the carrier core material, and is gradually lowered toward the surface of the resin layer, and the resistance control agent is present on the surface of the resin layer, as well as relates to an image forming method, wherein it comprises a step of developing an electrostatic image at a developing speed of 20 m/min or higher, by means of employing the developer for electrostatic image development. The developer for electrostatic image development of the invention exhibits a stable development and transfer behavior without any variation of triboelectric charging performance, electric resistance, or the like, even when used as a two-component developer, and in addition, affords a printed image with high image quality and high grade without any fogging.
摘要翻译：本发明涉及一种用于静电图像显影的显影剂，包括：用于静电图像显影的调色剂，其包含树脂和着色剂; 以及由载体芯材形成的载体和形成在载体芯材的表面上的电阻控制剂的树脂层，其中载体的树脂层具有电阻控制剂朝向厚度方向的浓度梯度，电阻控制剂的浓度在载体芯材附近最高，并且朝向树脂层的表面逐渐降低，并且电阻控制剂存在于树脂层的表面上以及涉及一种图像形成方法，其中包括通过使用用于静电图像显影的显影剂来以20m / min或更高的显影速度显影静电图像的步骤。本发明的静电显影显影剂即使用作双组分显影剂也表现出稳定的显影和转印行为，而不会出现摩擦带电性能，电阻等的任何变化，并且还提供具有高图像质量和高档无任何雾化。

2. 发明授权

US06335139B1 Toner for electrostatic image development and image forming method employing the same 有权
标题翻译：用于静电图像显影的调色剂和使用该调色剂的图像形成方法
公开(公告)号：US06335139B1
公开(公告)日：2002-01-01
申请号：US09642936
申请日：2000-08-22
申请人： Hideki Gambayashi , Masanobu Nakamura , Toshiro Kogawara , Shinji Amaya
发明人： Hideki Gambayashi , Masanobu Nakamura , Toshiro Kogawara , Shinji Amaya
IPC分类号： G03G9087
CPC分类号： G03G9/08782 , G03G9/0821 , G03G9/08755 , G03G9/08793 , G03G9/08797 , G03G9/09741 , G03G9/09775
摘要： The present invention provides a toner for electrostatic image development which reconciles anti-offset properties and fixation properties and is superior in resistance to abrasion and peel of the fixed image in uses where the development and fixation are conducted at a wide range of a fixing speed, particularly high speed which exceeds 20 or 30 m/min. The toner comprises a polyester resin, a colorant, and a releasing agent, wherein the flow beginning temperature Tfb of the toner as measured by a constant load extrusion type capillary rheometer is within a range of 70-105° C. and the flow ending temperature Tend is within a range of 120-144° C.
摘要翻译：本发明提供了一种用于静电图像显影的调色剂，其调和抗偏移性和定影性，并且在定影速度的宽范围内进行显影和定影的用途中，在耐磨性和固定图像的剥离方面优异，特别高的速度超过20或30米/分。调色剂包括聚酯树脂，着色剂和脱模剂，其中通过恒定负载挤出型毛细管流变仪测量的调色剂的流动开始温度Tfb在70-105℃的范围内，并且流动结束温度 Tend在120-144°C的范围内

3. 发明授权

US07732114B2 Modified nigrosine, its production method, and toner for developing electrostatic charge images using this modified nigrosine 失效
标题翻译：改性的苯胺黑，其制备方法和使用该修饰的苯胺黑显影静电荷图像的调色剂
公开(公告)号：US07732114B2
公开(公告)日：2010-06-08
申请号：US11663337
申请日：2005-09-21
申请人： Shinji Amaya , Toshiro Kogawara
发明人： Shinji Amaya , Toshiro Kogawara
IPC分类号： G03G9/097
CPC分类号： G03G9/0926 , C09B59/00 , G03G9/0914
摘要： Modified nigrosine which has satisfactory dispersibility in resin and which reduces the residual aniline amount is offered, and its production method is also offered. Moreover, toner for developing electrostatic charge images is offered, which uses modified nigrosine colorant that resolves the aforementioned problems, which has excellent charge-imparting properties, which exhibits no fogging, which experiences no scattering of toner inside the developing apparatus, and which has little fluctuation of image density.Modified nigrosine, which is nigrosine (b) that has been modified by rosin-modified resin (a) with an acid value of 110 or less.
摘要翻译：提供了在树脂中具有令人满意的分散性并降低残留苯胺量的改性的苯胺黑，并且还提供了其制备方法。此外，提供用于显影静电荷图像的调色剂，其使用解决上述问题的改性的苯胺黑色着色剂，其具有优异的电荷赋予特性，其表现出不起雾，其在显影装置内不会发生调色剂的散射，并且具有很小的影像密度波动。改性的苯胺黑，其是由具有酸值为110以下的松香改性树脂（a）改性的苯胺黑（b）。

4. 发明授权

US06248491B1 Toner for electrostatic image development 有权
标题翻译：调色剂用于静电图像显影
公开(公告)号：US06248491B1
公开(公告)日：2001-06-19
申请号：US09666555
申请日：2000-09-21
申请人： Hitoshi Takayanagi , Minoru Nomura , Takashi Ito , Kenichi Hirabayashi , Yukiko Soma , Toshiro Kogawara , Toyomi Hashizume , Kazuo Itoya
发明人： Hitoshi Takayanagi , Minoru Nomura , Takashi Ito , Kenichi Hirabayashi , Yukiko Soma , Toshiro Kogawara , Toyomi Hashizume , Kazuo Itoya
IPC分类号： G03G9087
CPC分类号： G03G9/0827 , G03G9/08755 , G03G9/08795
摘要： The present invention provides a polyester resin toner which has good fixing properties and is superior in image quality in a heat roller fixation system without employing an anti-offset solution, and which has a spherical or generally spherical shape and has a small particle diameter, and a method of producing the same. In a toner for electrostatic image development comprising a binder resin and a colorant, said binder resin is made of a polyester resin. Furthermore, the weight-average molecular weight as measured by gel permeation chromatography of a tetrahydrofuran-soluble fraction of said polyester resin contained in the toner is 30,000 or more and the weight-average molecular weight/number-average molecular weight is 12 or more and, moreover, the area ratio of a molecular weight of 600,000 or more is 0.5% or more and the area ratio of a molecular weight of 10,000 or less is within a range of 20-80%. The toner for electrostatic image development has a spherical or generally spherical shape having the average circularity (average value of circularity defined by (perimeter of a circle having the same area as that of a projected area of particles)/(perimeter of a projected image of particles)) of 0.97 or more.
摘要翻译：本发明提供一种聚酯树脂调色剂，其具有良好的定影性能，并且在不使用防偏移溶液的热辊定影系统中具有优异的图像质量，并且具有球形或大致球形并且具有小的粒径，以及其制造方法。在包含粘合剂树脂和着色剂的用于静电图像显影的调色剂中，所述粘合剂树脂由聚酯树脂制成。此外，通过凝胶渗透色谱法测定调色剂中所含的所述聚酯树脂的四氢呋喃可溶部分的重均分子量为30,000以上，重均分子量/数均分子量为12以上，此外，分子量为600,000以上的面积比为0.5％以上，分子量为10,000以下的面积比在20〜80％的范围内。用于静电图像显影的调色剂具有平均圆形度的球形或大致球形形状（由圆周的平均值（具有与颗粒的投影面积相同的面积的圆的周长）/（投影图像的周长）颗粒））为0.97以上。

5. 发明授权

US06238836B1 Toner composition and developer for electrostatic image development 有权
标题翻译：用于静电图像显影的调色剂组合物和显影剂
公开(公告)号：US06238836B1
公开(公告)日：2001-05-29
申请号：US09401783
申请日：1999-09-22
申请人： Masanobu Nakamura , Toshiro Kogawara , Hideki Gambayashi , Norio Aoki , Yoshinori Shimane , Ryozo Sugawara , Kinji Shinzo
发明人： Masanobu Nakamura , Toshiro Kogawara , Hideki Gambayashi , Norio Aoki , Yoshinori Shimane , Ryozo Sugawara , Kinji Shinzo
IPC分类号： G03G9087
CPC分类号： G03G9/08753 , G03G9/08755
摘要： An electrostatic image developer is provided which has superior fixation properties and anti-offset properties, exhibits stable charge behavior even during continuous printing, and has superior durability and permits a high-quality image to be obtained. This electrostatic image developer is a toner composition containing colored resin particles comprising at least a binder resin, a colorant, and a charge control agent, wherein (1) an epoxy compound with a valence of 5 or more, (2) a polybasic acid compound having a valence of 2 or more selected from the group consisting of polybasic acids and/or acid anhydrides and/or lower alkyl esters thereof, and (3) a polyvalent alcohol having a valence of 2 or more, are employed as chief structural components of the binder resin, and a polyester resin is produced by reacting components (1)-(3) simultaneously, or by first reacting components (1) and (3), and subsequently reacting component (2), or by first reacting components (1) and (2), and subsequently reacting component (3).
摘要翻译：提供静电图像显影剂，其具有优异的固着性和抗偏移性，即使在连续印刷期间也表现出稳定的电荷性能，并且具有优异的耐久性并且可以获得高质量的图像。该静电图像显影剂是包含至少包含粘合剂树脂，着色剂和电荷控制剂的着色树脂颗粒的调色剂组合物，其中（1）价数为5以上的环氧化合物，（2）多元酸化合物具有选自多元酸和/或酸酐和/或其低级烷基酯的化合价为2以上的化合价，和（3）2价以上的多价醇作为主要结构成分通过使组分（1） - （3）同时反应或首先使组分（1）和（3）反应，然后使组分（2）反应，或通过首先使组分（1）反应来制备粘合剂树脂和聚酯树脂）和（2），随后使组分（3）反应。

6. 发明申请

US20070264589A1 Modified Nigrosine, Its Production Method, and Toner for Developing Electrostatic Charge Images Using This Modified Nigrosine 失效
标题翻译：改性尼古丁，其制备方法和使用该改性苯胺黑显影静电荷图像的调色剂
公开(公告)号：US20070264589A1
公开(公告)日：2007-11-15
申请号：US11663337
申请日：2005-09-21
申请人： Shinji Amaya , Toshiro Kogawara
发明人： Shinji Amaya , Toshiro Kogawara
IPC分类号： C07C211/46 , G03G9/087
CPC分类号： G03G9/0926 , C09B59/00 , G03G9/0914
摘要： Modified nigrosine which has satisfactory dispersibility in resin and which reduces the residual aniline amount is offered, and its production method is also offered. Moreover, toner for developing electrostatic charge images is offered, which uses modified nigrosine colorant that resolves the aforementioned problems, which has excellent charge-imparting properties, which exhibits no fogging, which experiences no scattering of toner inside the developing apparatus, and which has little fluctuation of image density. Modified nigrosine, which is nigrosine (b) that has been modified by rosin-modified resin (a) with an acid value of 110 or less.
摘要翻译：提供了在树脂中具有令人满意的分散性并降低残留苯胺量的改性的苯胺黑，并且还提供了其制备方法。此外，提供用于显影静电荷图像的调色剂，其使用解决上述问题的改性的苯胺黑色着色剂，其具有优异的电荷赋予特性，其表现出不起雾，其在显影装置内不会发生调色剂的散射，并且具有很小的影像密度波动。改性的苯胺黑，其是由具有酸值为110以下的松香改性树脂（a）改性的苯胺黑（b）。

7. 发明授权

US06653040B2 Electrophotographic carrier, developer using the same, and developing method 有权
标题翻译：电子照相载体，使用相同的显影剂和显影方法
公开(公告)号：US06653040B2
公开(公告)日：2003-11-25
申请号：US09981786
申请日：2001-10-19
申请人： Katsunori Ohba , Toshiro Kogawara , Takeshi Isonaka , Shinji Amaya
发明人： Katsunori Ohba , Toshiro Kogawara , Takeshi Isonaka , Shinji Amaya
IPC分类号： G03G9113
CPC分类号： G03G9/10 , G03G9/1131 , G03G9/1136 , G03G9/1139
摘要： The present invention provides a carrier for electrophotography, which is capable of charging the toner in the developer very rapidly to a target electrostatic charge and at the same time, is capable of maintaining the target electrostatic charge during printing, so that the chemical fogging related to the slow charging rate can be eliminated and the image density related to the maintenance of the electrostatic charge can be preserved during printing. The charging rate and the charge maintenance of the electrophotographic carrier can be preserved if the carrier composed of magnetic core particles and the resin coat satisfies the following equation (B)>[(−19.4)×(A)+31], wherein (A) represents a carbon content (weight %) of the carrier and (B) represents a ratio of the square root of the number of emitted photoelectrons ((CPS)½) and the photon energy (eV).
摘要翻译：本发明提供了一种用于电子照相的载体，其能够将显影剂中的调色剂非常快速地充电到目标静电电荷，并且同时能够在印刷期间保持目标静电电荷，使得与可以消除缓慢的充电速率，并且在打印期间可以保持与维持静电电荷相关的图像浓度。如果由磁芯颗粒和树脂涂层构成的载体满足下列等式（B）> [（ - 19.4）x（A）+31]，则可以保持电子照相载体的充电速率和电荷维持性，其中（A ）表示载体的碳含量（重量％），（B）表示发射光电子数（（CPS）1/2）的平方根与光子能量（eV）的比率。

8. 发明授权

US06534229B2 Developer for electrostatic image development 有权
标题翻译：静电图像开发的开发者
公开(公告)号：US06534229B2
公开(公告)日：2003-03-18
申请号：US09780337
申请日：2001-02-12
申请人： Katsunori Ohba , Katsuyuki Ogura , Masanobu Nakamura , Toshiro Kogawara , Hideki Gambayashi
发明人： Katsunori Ohba , Katsuyuki Ogura , Masanobu Nakamura , Toshiro Kogawara , Hideki Gambayashi
IPC分类号： G03G9087
CPC分类号： G03G9/0819 , G03G9/0823 , G03G9/08755 , G03G9/08797
摘要： An object of the present invention is to provide a developer for electrostatic image development, which exhibits stable charge behavior during printing even when using a polyester resin and does not cause contamination of the inside of the apparatus because of less scattering of the toner, and also facilitates easy maintenance. The developer for electrostatic image development of the present invention comprises colored resin particles comprising at least a binder resin and a colorant, and a magnetic carrier, wherein a proportion of said colored resin particles having a particle diameter in a range of from 12 &mgr;m to 16 &mgr;m, inclusive, in said developer and a specific charge amount of said colored resin particles meet the following expression (1): 5.18+0.12×A
摘要翻译：本发明的目的是提供一种用于静电图像显影的显影剂，其即使在使用聚酯树脂时也在印刷过程中表现出稳定的电荷行为，并且由于调色剂的散射较少而不会使设备的内部受到污染，并且还便于维护。本发明的静电显影显影剂包括至少包含粘合剂树脂和着色剂的着色树脂颗粒和磁性载体，其中一部分所述着色树脂颗粒的粒径在12μm至16μm的范围内包括在内的所述显影剂，并且所述着色树脂颗粒的特定电荷量满足以下表达式（1）:(其中A表示粒径在12范围内的着色树脂颗粒的比例（体积％）〜16μm，B表示粒径在12μm〜16μm的范围内的着色树脂粒子的比电荷量Q / M（μC/ g）。

9. 发明授权

US5017450A Color toner composition for electrostatic developer 失效
标题翻译：用于静电显影剂的彩色调色剂组合物
公开(公告)号：US5017450A
公开(公告)日：1991-05-21
申请号：US360697
申请日：1989-06-02
申请人： Yoshiyuki Iwanari , Shinji Amaya , Seiichi Shimizu , Toshiro Kogawara
发明人： Yoshiyuki Iwanari , Shinji Amaya , Seiichi Shimizu , Toshiro Kogawara
IPC分类号： C08F283/01 , C08F299/04 , G03G9/087
CPC分类号： C08F299/0478 , G03G9/08788
摘要： A color toner composition for an electrostatic developer is disclosed, comprising a cyan pigment, a magenta pigment or a yellow pigment, a binder resin and a negative charging-controlling agent, wherein the binder resin is a vinyl-modified polyester resin as obtained by graft polymerizing.(b) a vinyl monomer component containing an aromatic vinyl monomer and an amino group-containing vinyl monomer to(a) an unsaturated polyester component containing at least aliphatic unsaturated dibasic acid and polyhydric alcohol, said component (a) constituting at least 50% by weight of the vinyl-modified polyester resin and said amino group-containing vinyl monomer constitutes 0.1 to 2% by weight of the vinyl-modified polyester resin.
摘要翻译：公开了一种用于静电显影剂的彩色调色剂组合物，其包含青色颜料，品红色颜料或黄色颜料，粘合剂树脂和负电荷控制剂，其中粘合剂树脂是通过接枝获得的乙烯基改性的聚酯树脂聚合。（b）含有芳族乙烯基单体和含氨基的乙烯基单体的乙烯基单体组分，（a）至少含有脂族不饱和二元酸和多元醇的不饱和聚酯组分，所述组分（a）构成至少50％乙烯基改性聚酯树脂和含氨基乙烯基单体的重量占乙烯基改性聚酯树脂的0.1〜2重量％。

10. 发明授权

US4931370A Color toner composition for developing electrostatic images 失效
标题翻译：用于显影静电图像的彩色调色剂成分
公开(公告)号：US4931370A
公开(公告)日：1990-06-05
申请号：US284043
申请日：1988-12-14
申请人： Shinji Amaya , Yoshiyuki Iwanari , Kinji Shinzo , Toshiro Kogawara , Syuuichi Yamazaki , Seiichi Shimizu , Kazuya Kuriyama
发明人： Shinji Amaya , Yoshiyuki Iwanari , Kinji Shinzo , Toshiro Kogawara , Syuuichi Yamazaki , Seiichi Shimizu , Kazuya Kuriyama
IPC分类号： G03G9/09
CPC分类号： G03G9/0906 , Y10S430/105
摘要： A color toner composition for developing electrostatic images comprises a coloring agent and a binder resin, wherein the binder resin is a vinyl-modified polyester resin obtained by graft polymerizing(a) a vinyl monomer containing an aromatic vinyl monomer and an amino group-containing vinyl monomer to(b) an unsaturated polyester comprising at least aliphatic unsaturated dibasic acid and polyhydric alcohol having a weight average molecular weight of about 5,000 to 15,000, and the component (b) constitutes at least 50% by weight of the vinyl-modified polyester resin and the amino group-containing vinyl monomer constitutes 2 to 20% by weight of the vinyl-modified polyester resin.
摘要翻译：用于显影静电图像的彩色调色剂组合物包括着色剂和粘合剂树脂，其中粘合剂树脂是通过将（a）含有芳族乙烯基单体和含氨基的乙烯基的乙烯基单体接枝聚合而获得的乙烯基改性聚酯树脂单体至（b）包含至少脂肪族不饱和二元酸和重均分子量为约5,000至15,000的多元醇的不饱和聚酯，并且组分（b）占乙烯基改性聚酯树脂的至少50重量％含有氨基的乙烯基单体构成乙烯基改性聚酯树脂的2〜20重量％。

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