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1. 发明申请

US20100167197A1 TONER AND PROCESS FOR PRODUCING THE SAME 审中-公开
标题翻译：用于生产它的调色剂和方法
公开(公告)号：US20100167197A1
公开(公告)日：2010-07-01
申请号：US11997825
申请日：2006-07-27
申请人： Yasuhito Yuasa , Masahisa Maeda , Hidekazu Arase
发明人： Yasuhito Yuasa , Masahisa Maeda , Hidekazu Arase
IPC分类号： G03G9/12 , G03G9/08
CPC分类号： G03G9/0819 , G03G9/0804 , G03G9/08733 , G03G9/08782
摘要： A toner includes aggregated particles produced by preparing in an aqueous medium a mixed dispersion including at least a first resin particle dispersion in which first resin particles are dispersed, a colorant particle dispersion in which colorant particles are dispersed, and a wax particle dispersion in which wax particles are dispersed, heating the mixed dispersion so that at least part of the wax particles is melted, and aggregating the first resin particles, the colorant particles, and the wax particles at least part of which is melted by the addition of an aqueous solution containing an aggregating agent. Thus, the toner can have a smaller particle size and a sharp particle size distribution without requiring a classification process. Moreover, the toner can achieve a longer life and suppress transfer voids or scattering during transfer.
摘要翻译：调色剂包括通过在水性介质中制备包含至少分散有第一树脂颗粒的第一树脂颗粒分散体，分散有着色剂颗粒的着色剂颗粒分散体和蜡颗粒分散体而制备的凝集颗粒，其中蜡分散颗粒，加热混合的分散体使至少部分蜡颗粒熔融，并将第一树脂颗粒，着色剂颗粒和蜡颗粒聚集，至少部分蜡颗粒通过加入含有聚集剂。因此，调色剂可以具有较小的粒度和尖锐的粒度分布，而不需要分级过程。此外，调色剂可以实现更长的寿命并抑制转印期间的转移空隙或散射。

2. 发明授权

US07560214B2 Toner, process for producing toner, two-component developer and image forming apparatus 失效
标题翻译：调色剂，调色剂的制造方法，双组分显影剂和图像形成装置
公开(公告)号：US07560214B2
公开(公告)日：2009-07-14
申请号：US11569492
申请日：2005-05-16
申请人： Yasuhito Yuasa , Hidekazu Arase , Mamoru Soga , Masahisa Maeda
发明人： Yasuhito Yuasa , Hidekazu Arase , Mamoru Soga , Masahisa Maeda
IPC分类号： G03G9/087
CPC分类号： G03G9/08782 , G03G9/0804 , G03G9/0819 , G03G9/0821 , G03G9/09791
摘要： Toner of the present invention is produced by mixing in an aqueous medium at least a resin particle dispersion in which resin particles are dispersed, a colorant particle dispersion in which colorant particles are dispersed, and a wax particle dispersion in which wax particles are dispersed and heating and aggregating the mixed dispersion. The main component of a surface-active agent used for the resin particle dispersion is a nonionic surface-active agent. The main component of at least one surface-active agent selected from a surface-active agent used for the wax particle dispersion and a surface-active agent used for the colorant particle dispersion is a nonionic surface-active agent. With this configuration, the toner can have a smaller particle size and a sharp particle size distribution without requiring a classification process. The toner and a two-component developer can achieve oilless fixing, eliminate spent of the toner components on a carrier to make the life longer, and ensure high transfer efficiency by suppressing transfer voids or scattering during transfer.
摘要翻译：本发明的调色剂通过在水性介质中混合至少分散有树脂颗粒的树脂颗粒分散体，着色剂颗粒分散在其中的着色剂颗粒分散体和分散有蜡颗粒的蜡颗粒分散体和加热并聚集混合分散体。用于树脂颗粒分散体的表面活性剂的主要成分是非离子表面活性剂。选自用于蜡颗粒分散体的表面活性剂中的至少一种表面活性剂和用于着色剂颗粒分散体的表面活性剂的主要成分是非离子表面活性剂。利用这种构造，调色剂可以具有更小的粒度和更大的粒度分布，而不需要分级处理。调色剂和双组分显影剂可以实现无油固定，消除了载体上调色剂组分的使用寿命，延长了转印效率，并通过抑制转印空隙或转印过程中的散射来确保高转印效率。

3. 发明授权

US07939232B2 Toner, process for producing toner, and two-component developing agent 失效
公开(公告)号：US07939232B2
公开(公告)日：2011-05-10
申请号：US11816219
申请日：2005-11-01
申请人： Yasuhito Yuasa , Hidekazu Arase , Masahisa Maeda
发明人： Yasuhito Yuasa , Hidekazu Arase , Masahisa Maeda
IPC分类号： G03G9/08
CPC分类号： G03G9/0804 , G03G9/0817 , G03G9/08782 , G03G9/08795 , G03G9/08797
摘要： A toner or two-component developer is obtained by mixing, aggregating, and heating resin particles, colorant particles, and wax particles in an aqueous medium. A gel permeation chromatography (GPC) measurement of the resin particles shows that a weight-average molecular weight is 10000 to 60000, and the ratio of the weight-average molecular weight to a number-average molecular weight is 1.5 to 6. The wax particles include at least a first wax and a second wax. An endothermic peak temperature (melting point Tmw1 (° C.)) of the first wax based on a DSC method is 50° C. to 90° C. An endothermic peak temperature (melting point Tmw2 (° C.)) of the second wax based on the DSC method is at least 5° C. to 50° C. higher than Tmw1. Thus, the toner can have a smaller particle size and a sharp particle size distribution without requiring a classification process, can achieve a longer life, and can suppress transfer voids or scattering during transfer.

4. 发明申请

US20090035681A1 TONER, PROCESS FOR PRODUCING TONER, AND TWO-COMPONENT DEVELOPING AGENT 失效
标题翻译：调色剂，生产调色剂的方法和两组分显影剂
公开(公告)号：US20090035681A1
公开(公告)日：2009-02-05
申请号：US11816219
申请日：2005-11-11
申请人： Yasuhito Yuasa , Hidekazu Arase , Masahisa Maeda
发明人： Yasuhito Yuasa , Hidekazu Arase , Masahisa Maeda
IPC分类号： G03G9/08 , G03G9/087
CPC分类号： G03G9/0804 , G03G9/0817 , G03G9/08782 , G03G9/08795 , G03G9/08797
摘要： A toner or two-component developer is obtained by mixing, aggregating, and heating resin particles, colorant particles, and wax particles in an aqueous medium. A gel permeation chromatography (GPC) measurement of the resin particles shows that a weight-average molecular weight is 10000 to 60000, and the ratio of the weight-average molecular weight to a number-average molecular weight is 1.5 to 6. The wax particles include at least a first wax and a second wax. An endothermic peak temperature (melting point Tmw1 (° C.)) of the first wax based on a DSC method is 50° C. to 90° C. An endothermic peak temperature (melting point Tmw2 (° C.)) of the second wax based on the DSC method is at least 5° C. to 50° C. higher than Tmw1. Thus, the toner can have a smaller particle size and a sharp particle size distribution without requiring a classification process, can achieve a longer life, and can suppress transfer voids or scattering during transfer.
摘要翻译：通过在水性介质中混合，聚集和加热树脂颗粒，着色剂颗粒和蜡颗粒来获得调色剂或双组分显影剂。树脂颗粒的凝胶渗透色谱（GPC）测定表明重均分子量为10000〜60000，重均分子量与数均分子量的比为1.5〜6。蜡颗粒包括至少第一蜡和第二蜡。基于DSC法的第一蜡的吸热峰温度（熔点Tmw1（℃））为50℃〜90℃。第二蜡的吸热峰温度（熔点Tmw2（℃））基于DSC法的蜡比Tmw1高至少5℃至50℃。因此，调色剂可以具有较小的粒度和尖锐的粒度分布，而不需要分级过程，可以实现更长的寿命，并且可以抑制转印期间的转移空隙或散射。

5. 发明申请

US20090004589A1 Toner and Process for Producing the Same 审中-公开
标题翻译：调色剂及其制作方法
公开(公告)号：US20090004589A1
公开(公告)日：2009-01-01
申请号：US12162538
申请日：2006-11-28
申请人： Yasuhito Yuasa , Mamoru Soga , Hidekazu Arase , Masahisa Maeda
发明人： Yasuhito Yuasa , Mamoru Soga , Hidekazu Arase , Masahisa Maeda
IPC分类号： G03G9/09 , G03G9/08 , G03G5/00
CPC分类号： G03G9/0904 , G03G9/0804 , G03G9/08782
摘要： The present invention provides toner containing core particles prepared by mixing and aggregating in an aqueous medium at least a first resin particle dispersion in which first resin particles are dispersed, a colorant particle dispersion in which particles of colorant are dispersed and a wax particle dispersion in which particles of wax are dispersed. The colorant contains carbon black having a DBP oil absorption of 45 to 70 (ml/100 g) and the wax contains a wax having an endothermic peak temperature (referred to as melting point Tmw1 (° C.)) according the DSC method of 50 to 90° C. It is thus possible to prepare toner that has a small particle size and a sharp particle size distribution without requiring a classification process and that can prevent transfer void and toner scattering during transfer and obtain high transfer efficiency. The present invention provides also a method for producing the toner.
摘要翻译：本发明提供了含有核心颗粒的调色剂，其通过在水性介质中混合和聚集至少分散有第一树脂颗粒的第一树脂颗粒分散体，着色剂颗粒分散在其中的着色剂颗粒分散体和蜡颗粒分散体蜡颗粒分散。着色剂含有DBP吸油量为45〜70（ml / 100g）的炭黑，根据DSC法为50，蜡含有具有吸热峰温度（称为熔点Tmw1（℃））的蜡）因此可以制备具有小粒度和尖锐粒度分布的调色剂，而不需要分级过程，并且可以防止转印期间的转印空隙和调色剂飞散并获得高转印效率。本发明还提供了调色剂的制造方法。

6. 发明申请

US20080160443A1 Toner, Process for Producing Toner, Two-Component Developer and Image Forming Apparatus 失效
标题翻译：调色剂，调色剂生产方法，双组分显影剂和成像装置
公开(公告)号：US20080160443A1
公开(公告)日：2008-07-03
申请号：US11569492
申请日：2005-05-16
申请人： Yasuhito Yuasa , Hidekazu Arase , Mamoru Soga , Masahisa Maeda
发明人： Yasuhito Yuasa , Hidekazu Arase , Mamoru Soga , Masahisa Maeda
IPC分类号： G03G9/087
CPC分类号： G03G9/08782 , G03G9/0804 , G03G9/0819 , G03G9/0821 , G03G9/09791
摘要： Toner of the present invention is produced by mixing in an aqueous medium at least a resin particle dispersion in which resin particles are dispersed, a colorant particle dispersion in which colorant particles are dispersed, and a wax particle dispersion in which wax particles are dispersed and heating and aggregating the mixed dispersion. The main component of a surface-active agent used for the resin particle dispersion is a nonionic surface-active agent. The main component of at least one surface-active agent selected from a surface-active agent used for the wax particle dispersion and a surface-active agent used for the colorant particle dispersion is a nonionic surface-active agent. With this configuration, the toner can have a smaller particle size and a sharp particle size distribution without requiring a classification process. The toner and a two-component developer can achieve oilless fixing, eliminate spent of the toner components on a carrier to make the life longer, and ensure high transfer efficiency by suppressing transfer voids or scattering during transfer.
摘要翻译：本发明的调色剂通过在水性介质中混合至少分散有树脂颗粒的树脂颗粒分散体，着色剂颗粒分散在其中的着色剂颗粒分散体和分散有蜡颗粒的蜡颗粒分散体和加热并聚集混合分散体。用于树脂颗粒分散体的表面活性剂的主要成分是非离子表面活性剂。选自用于蜡颗粒分散体的表面活性剂中的至少一种表面活性剂和用于着色剂颗粒分散体的表面活性剂的主要成分是非离子表面活性剂。利用这种构造，调色剂可以具有更小的粒度和更大的粒度分布，而不需要分级处理。调色剂和双组分显影剂可以实现无油固定，消除了载体上调色剂组分的使用寿命，延长了转印效率，并通过抑制转印空隙或转印过程中的散射来确保高转印效率。

7. 发明申请

US20050053858A1 Binding resin for toner, toner and electrophotographic apparatus 有权
标题翻译：调色剂，调色剂和电子照相设备的结合树脂
公开(公告)号：US20050053858A1
公开(公告)日：2005-03-10
申请号：US10421849
申请日：2003-04-24
申请人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
发明人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
IPC分类号： G03G9/087
CPC分类号： G03G9/081 , G03G9/0819 , G03G9/0821 , G03G9/0833 , G03G9/0834 , G03G9/0835 , G03G9/0836 , G03G9/0838 , G03G9/08704 , G03G9/08728 , G03G9/08755 , G03G9/08782 , G03G9/08786 , G03G9/08793 , G03G9/08795 , G03G9/08797 , G03G9/09716 , G03G9/09725
摘要： In an electrophotographic apparatus, which forms a color image by transferring a plurality of toner images having different colors onto an image-receiving sheet so as to be stacked and fixed thereon, even in the case of carrying out an oil-less fixing process and allowing the process speed to vary within wide range, the present invention provides a binder resin, toner and an electrophotographic apparatus which make it possible to achieve both superior fixing property and anti-offset property, and consequently to form a color image with high color reproducibility and high quality. In the present invention, a toner comprising a molecular weight maximum peak in a range of molecular weights from 2×103 to 3×104 in molecular weight distribution of GPC chromatogram, and a molecular weight maximum peak or shoulder in a range from 3×104 to 1×106, wherein said molecular weight maximum peak or shoulder located on a range of molecular weights from 3×104 to 1×106 is obtained by kneading a toner composition containing a specific binder resin containing a high molecular weight component at not less than a specific amount so that the high molecular weight component of the binder is converted into a low molecular weight component by thermal or mechanical energy exerted at the time of kneading, is provided.
摘要翻译：在通过将具有不同颜色的多个调色剂图像转印到图像接收片材上以便堆叠和固定在其上而形成彩色图像的电子照相设备中，即使在进行无油定影处理并允许工艺速度在宽范围内变化，本发明提供了一种粘合剂树脂，调色剂和电子照相设备，其可以实现优异的定影性和抗偏移性，从而形成具有高色彩再现性的彩色图像，高质量。在本发明中，在GPC色谱图的分子量分布中分子量最大峰值分子量为2×10 3〜3×10 4，分子量最大峰或3〜10 4至1×10 6，其中位于分子量为3×10 4至1×10 6范围内的分子量最大峰或肩峰是通过捏合含有高分子量的特定粘合剂树脂的调色剂组合物提供不低于特定量的重量组分，使得粘合剂的高分子量组分通过在捏合时施加的热或机械能转化为低分子量组分。

8. 发明授权

US06326116B2 Toner and method for producing the same 有权
标题翻译：调色剂及其制造方法
公开(公告)号：US06326116B2
公开(公告)日：2001-12-04
申请号：US09754157
申请日：2001-01-04
申请人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
发明人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
IPC分类号： G03G9097
CPC分类号： G03G9/08755 , G03G9/08782 , G03G9/08795 , G03G9/09716 , G03G9/09725
摘要： The present invention provides a toner comprising a binding resin, a colorant, and an ester based wax having an iodine value of not more than 25 and a saponification value of 30 to 300 (for example, at least one selected from the group consisting of meadowfoam oil and derivatives thereof and jojoba oil and derivatives thereof) and a method for producing the same. The present invention also provides a toner comprising silica fine powder containing a component having a polydimethyl siloxane skeleton extracted by an organic solvent at a content of not more than 2.5 wt %, and a method for producing the same. This stabilizes the chargeability and flowability of the toner during long period use, and eliminates the filming on a photoconductive member or a transfer medium. Moreover, toner that provides good fixability, anti-offset properties, waste toner recycle properties, and transfer efficiency can be obtained with good reproducibility.
摘要翻译：本发明提供一种调色剂，其包含粘合树脂，着色剂和碘值不大于25且皂化值为30至300的酯基蜡（例如，选自由白发泡沫组成的组中的至少一种油及其衍生物和霍霍巴油及其衍生物）及其制造方法。本发明还提供一种包含二氧化硅细粉末的调色剂及其制备方法，该二氧化硅细粉末含有由有机溶剂以不超过2.5重量％的含量提取的聚二甲基硅氧烷骨架的成分。这使得长期使用期间调色剂的带电性和流动性稳定，并且消除了在感光体或转印介质上的成膜。此外，可以以良好的再现性获得提供良好的定影性，抗偏移性，废调色剂回收性能和转印效率的调色剂。

9. 发明授权

US07063929B2 Binding resin for toner, toner and electrophotographic apparatus 有权
标题翻译：调色剂，调色剂和电子照相设备的结合树脂
公开(公告)号：US07063929B2
公开(公告)日：2006-06-20
申请号：US10421849
申请日：2003-04-24
申请人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
发明人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
IPC分类号： G03G9/087
CPC分类号： G03G9/081 , G03G9/0819 , G03G9/0821 , G03G9/0833 , G03G9/0834 , G03G9/0835 , G03G9/0836 , G03G9/0838 , G03G9/08704 , G03G9/08728 , G03G9/08755 , G03G9/08782 , G03G9/08786 , G03G9/08793 , G03G9/08795 , G03G9/08797 , G03G9/09716 , G03G9/09725
摘要： In an electrophotographic apparatus, which forms a color image by transferring a plurality of toner images having different colors onto an image-receiving sheet so as to be stacked and fixed thereon, even in the case of carrying out an oil-less fixing process and allowing the process speed to vary within wide range, the present invention provides a binder resin, toner and an electrophotographic apparatus which make it possible to achieve both superior fixing property and anti-offset property, and consequently to form a color image with high color reproducibility and high quality. In the present invention, a toner comprising a molecular weight maximum peak in a range of molecular weights from 2×103 to 3×104 in molecular weight distribution of GPC chromatogram, and a molecular weight maximum peak or shoulder in a range from 3×104 to 1×106, wherein said molecular weight maximum peak or shoulder located on a range of molecular weights from 3×104 to 1×106 is obtained by kneading a toner composition containing a specific binder resin containing a high molecular weight component at not less than a specific amount so that the high molecular weight component of the binder is converted into a low molecular weight component by thermal or mechanical energy exerted at the time of kneading, is provided.
摘要翻译：在通过将具有不同颜色的多个调色剂图像转印到图像接收片材上以便堆叠和固定在其上而形成彩色图像的电子照相设备中，即使在进行无油定影处理并允许工艺速度在宽范围内变化，本发明提供了一种粘合剂树脂，调色剂和电子照相设备，其可以实现优异的定影性和抗偏移性，从而形成具有高色彩再现性的彩色图像，高质量。在本发明中，在GPC色谱图的分子量分布中分子量为2×10 3〜3×10 4分子范围内的分子量最大峰的调色剂和分子量在3×10 4至1×10 6范围内的重量最大峰值或肩峰，其中所述分子量最大峰或肩位于分子量范围为3×10 4 通过将包含高分子量组分的特定粘合剂树脂的调色剂组合物捏合至特定量，以使粘合剂的高分子量组分为提供了通过在捏合时施加的热或机械能将其转化成低分子量组分。

10. 发明申请

US20090053640A1 TONER AND METHOD FOR PRODUCING TONER 审中-公开
标题翻译：用于生产墨粉的调色剂和方法
公开(公告)号：US20090053640A1
公开(公告)日：2009-02-26
申请号：US11909043
申请日：2006-02-10
申请人： Yasuhito Yuasa , Masahisa Maeda
发明人： Yasuhito Yuasa , Masahisa Maeda
IPC分类号： G03G5/00 , G03G9/087 , G03G9/08
CPC分类号： G03G9/09392 , G03G9/0804 , G03G9/0819
摘要： A toner is obtained in an aqueous medium by dispersing second resin particles into a core particles dispersion including at least first resin particles, and fusing the second resin particles with core particles. A second resin particle dispersion in which the second resin particles are dispersed is added after adjusting the pH value in the range of HS+2 to HS−5, where HS represents the pH value of the core particle dispersion in which the core particles are dispersed, so that toner particles have a volume-average particle size of 3 to 7 μm, a content of the toner particles having a particle size of 2.52 to 4 μm in a number distribution is 10 to 75% by number, the toner particles having a particle size of 4 to 6.06 μm in a volume distribution is 25 to 75% by volume, and the toner particles having a particle size of not less than 8 μm in the volume distribution is not more than 5% by volume. Thus, the toner can have a smaller particle size and a sharp particle size distribution without requiring a classification process. Moreover, the toner or a two-component developer can achieve a longer life and suppress transfer voids or scattering during transfer.
摘要翻译：通过将第二树脂颗粒分散在至少包含第一树脂颗粒的芯颗粒分散体中，并将第二树脂颗粒与芯颗粒熔合，从而在水介质中获得调色剂。在调节HS + 2〜HS-5范围内的pH值后，添加第二树脂颗粒分散在其中的第二树脂颗粒分散体，其中HS表示芯颗粒分散的芯颗粒分散体的pH值，使得调色剂颗粒的体积平均粒径为3至7μm，数量分布中粒径为2.52至4μm的调色剂颗粒的含量为10至75％，调色剂颗粒具有体积分布中4〜6.06μm的粒径为25〜75体积％，体积分布中粒径为8μm以上的调色剂颗粒的体积分数不超过5体积％。因此，调色剂可以具有较小的粒度和尖锐的粒度分布，而不需要分级过程。此外，调色剂或双组分显影剂可以实现更长的寿命并抑制转印期间的转移空隙或散射。

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