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11. 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。

12. 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。

13. 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。

14. 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。

15. 发明授权

US5702858A Toner 失效
标题翻译：爽肤水
公开(公告)号：US5702858A
公开(公告)日：1997-12-30
申请号：US679130
申请日：1996-07-12
申请人： Yasuhito Yuasa , Noriaki Hirota , Akinori Toyoda , Hideki Tatematsu
发明人： Yasuhito Yuasa , Noriaki Hirota , Akinori Toyoda , Hideki Tatematsu
IPC分类号： G03G9/097 , G03G15/16 , G03G9/083 , G03G13/09
CPC分类号： G03G15/1605 , G03G9/09708 , G03G9/09716
摘要： Toner used for electrophotographic development includes additives such as inorganic fine particles, having a particular particle diameter and specific surface area, and hydrophobic silica having a particular specific surface area and surface treatment, so that the toner can provide images of high quality without generating photoconductor filming. The toner is applied to the electrophotographic method including the developing step of forming electrostatic latent images on a photoconductor containing a stationary magnet, magnetically attracting the toner to the surface of the photoconductor in a toner sump, and collecting toner at a non-image section by an electrode roller; the transferring step of transferring the toner to transfer paper; the cleaning step of removing residual toner left on the photoconductor in the transferring step; and the recycling step of recycling the residual toner. Toner used for an electrophotographic method using an intermediate transfer member includes additives such as inorganic fine particles, having a particular particle diameter and specific surface area, arid hydrophobic silica having a particular specific surface area and surface treatment, so that the toner can provide images of high quality and high transfer efficiency without generating photoconductor and intermediate transfer member filming.
摘要翻译：用于电子照相显影的调色剂包括具有特定粒径和比表面积的添加剂如无机细颗粒，以及具有特定比表面积和表面处理的疏水性二氧化硅，使得调色剂可以提供高质量的图像而不产生感光膜成膜。将调色剂应用于电子照相方法，其包括在含有固定磁体的感光体上形成静电潜像的显影步骤，将调色剂磁性地吸引到调色剂贮槽中的感光体的表面，并将非图像部分的调色剂收集在非图像部分电极辊; 将调色剂转印到转印纸上的转印步骤; 在转印步骤中去除留在感光体上的残留调色剂的清洁步骤; 以及再循环残余调色剂的再循环步骤。用于使用中间转印部件的电子照相方法的调色剂包括具有特定粒径和比表面积的添加剂，例如具有特定比表面积的疏水性二氧化硅和表面处理的添加剂，使得调色剂可以提供高质量和高转印效率，而不产生感光体和中间转印部件成膜。

16. 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.

17. 发明授权

US5985506A Reversal electrophotographic developing method employing recyclable magnetic toner 失效
标题翻译：使用可回收磁性调色剂的反转电子显影方法
公开(公告)号：US5985506A
公开(公告)日：1999-11-16
申请号：US653014
申请日：1996-05-24
申请人： Yasuhito Yuasa , Akinori Toyoda , Noriaki Hirota
发明人： Yasuhito Yuasa , Akinori Toyoda , Noriaki Hirota
IPC分类号： G03G9/08 , G03G9/083 , G03G9/097 , G03G15/00 , G03G15/09
CPC分类号： G03G15/751 , G03G15/0921 , G03G9/0815 , G03G9/0819 , G03G9/0821 , G03G9/083 , G03G9/0837 , G03G9/0839 , G03G9/09725 , G03G2215/0621 , G03G2215/0639 , G03G2221/0005 , Y10S430/104
摘要： A magnetic toner for use in electrophotographic development which can be endowed with high performance by subjecting it to surface treatment with hot air in its dispersed state. The magnetic toner is used in an electrophotographic system including a development process in which an electrostatic latent image is formed by using a photoconductive drum having a stationary magnet therein, and thereafter the magnetic toner is sucked in a toner sump by magnetic force, whereby non-image area toner is recovered by an electrode roller, and the electrophotographic system including a recycle process of the residual toner. The magnetic toner is capable of realizing high-quality image development and stable recycle of residual toner by subjecting the magnetic toner to surface treatment with hot air.
摘要翻译：一种用于电子照相显影的磁性调色剂，可以通过对其分散状态的热空气进行表面处理而赋予高性能。磁性调色剂用于包括通过使用其中具有固定磁体的感光鼓形成静电潜像的显影方法的电子照相系统，然后磁性调色剂通过磁力吸入调色剂贮槽中，图像区域调色剂由电极辊回收，并且电子照相系统包括残留调色剂的再循环过程。磁性调色剂能够通过使磁性调色剂用热空气进行表面处理来实现高质量的图像显影和残留调色剂的稳定再循环。

18. 发明授权

US5561019A Magnetic toner 失效
标题翻译：磁性调色剂
公开(公告)号：US5561019A
公开(公告)日：1996-10-01
申请号：US419988
申请日：1995-04-11
申请人： Yasuhito Yuasa , Noriaki Hirota , Akinori Toyoda , Hideki Tatematsu
发明人： Yasuhito Yuasa , Noriaki Hirota , Akinori Toyoda , Hideki Tatematsu
IPC分类号： G03G9/083 , G03G9/097 , G03G15/095 , G03G15/16
CPC分类号： G03G15/1605 , G03G15/095 , G03G9/09708 , G03G9/09716 , G03G9/083 , G03G9/0838
摘要： Magnetic toner used for electrophotographic development includes additives such as inorganic fine particles, having a particular particle diameter and specific surface area, and hydrophobic silica having a particular specific surface area and surface treatment, so that the magnetic toner can provide images of high quality without generating photoconductor filming. The magnetic toner is applied to the electrophotographic method including the developing step of forming electrostatic latent images on a photoconductor containing a stationary magnet, magnetically attracting the magnetic toner to the surface of the photoconductor in a toner sump, and collecting toner at a non-image section by an electrode roller; the transferring step of transferring the toner to transfer paper; the cleaning step of removing residual magnetic toner left on the photoconductor in the transferring step; and the recycling step of recycling the residual magnetic toner.
摘要翻译：用于电子照相显影的磁性调色剂包括具有特定粒径和比表面积的添加剂如无机细颗粒，以及具有特定比表面积和表面处理的疏水性二氧化硅，使得磁性调色剂可以提供高品质图像而不产生光电导体成像。将磁性调色剂应用于电子照相方法，包括在含有固定磁体的感光体上形成静电潜像的显影步骤，将磁性调色剂磁性吸引到调色剂槽中的感光体的表面，并以非图像收集调色剂通过电极辊; 将调色剂转印到转印纸上的转印步骤; 在转印步骤中去除留在感光体上的残留磁性调色剂的清洗步骤; 以及再循环剩余磁性调色剂的再循环步骤。

19. 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。

20. 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。

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