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1. 发明授权

US06740463B2 Method for producing toner by mixing colored particles and outer-additive by mixer with stirrer of high speed rotation 有权
标题翻译：通过混合器将着色颗粒和外部添加剂与高速旋转搅拌器混合来生产调色剂的方法
公开(公告)号：US06740463B2
公开(公告)日：2004-05-25
申请号：US10174533
申请日：2002-06-19
申请人： Kazunori Shigemori , Hidetoshi Azuma , Yoshihiro Makuta , Hirosi Yamamoto , Nobuyasu Ota , Kazuhiro Sato , Ryuji Ota
发明人： Kazunori Shigemori , Hidetoshi Azuma , Yoshihiro Makuta , Hirosi Yamamoto , Nobuyasu Ota , Kazuhiro Sato , Ryuji Ota
IPC分类号： G03G908
CPC分类号： G03G9/09733 , G03G9/0808 , G03G9/0819 , G03G9/09708
摘要： A method of producing a toner having a process of mixing colored particles and outer-additives by using a mixer with an agitating blade whose shaft portion is sealed with a gas having a flow rate of from 0.4 m3/hr to 3 m3/hr and which rotates at such a high speed as a peripheral speed at a tip of said agitating blade in a range of from 20 m/sec to 50 m/sec. When the colored particles and outer-additives are mixed with each other, there is no generation of aggregates thereby and the toner can be obtained at a high yield. Therefore the toner which hardly generates a white streak and fog, even after a long period of continuous operation of development of electrophotographs is performed, can be obtained.
摘要翻译：一种调色剂的制造方法，其特征在于，使用具有流动速度为0.4m 3 / hr〜3m的气体密封轴的搅拌叶片的混合机混合有色粒子和外部添加剂的方法， 3> / hr，并且以与所述搅拌叶片的尖端处的圆周速度一样高的速度在20m / sec至50m / sec的范围内旋转。当着色颗粒和外部添加剂彼此混合时，不会产生聚集体，从而可以高产率获得调色剂。因此，即使经过长时间的电子照相显影的连续操作，也可以获得难以产生白色条纹和雾的调色剂。

2. 发明授权

US06534233B1 Method for producing toner 有权
标题翻译：调色剂的制造方法
公开(公告)号：US06534233B1
公开(公告)日：2003-03-18
申请号：US09912502
申请日：2001-07-26
申请人： Hiroshi Yamamoto , Kazuhiro Sato , Makoto Watanabe , Hidetoshi Azuma
发明人： Hiroshi Yamamoto , Kazuhiro Sato , Makoto Watanabe , Hidetoshi Azuma
IPC分类号： G03G900
CPC分类号： G03G9/0804 , G03G9/0806
摘要： A toner can be produced by dispersing a colorant in a dispersion medium essentially composed of a polymerizable monomer by using a media-type dispersing device at a tip speed of a stirring body of 3 to 20 m/s with a residence time being 0.03 to 0.5 hour to obtain a monomer composition A; dispersing or dissolving a charge control agent in a dispersion medium to obtain a monomer composition B; dispersing or dissolving a parting agent in a dispersion medium to obtain a monomer composition C; mixing or dispersing the monomer composition A, the monomer composition B and the monomer composition C in a dispersion medium to obtain a polymerizable composition D; and homogenizing the composition D in an aqueous dispersion medium containing a dispersion stabilizer to generate droplets; polymerizing the droplets to obtain colored polymer particles; and attaching an outer-additive on the colored polymer particles.
摘要翻译：调色剂可以通过使用介质型分散装置以3〜20m / s的搅拌体的前端速度分散着着色剂在基本上由聚合性单体构成的分散介质中，停留时间为0.03〜0.5 小时以获得单体组合物A; 将电荷控制剂分散或溶解在分散介质中以获得单体组合物B; 将分散剂分散或溶解在分散介质中以获得单体组合物C; 将单体组合物A，单体组合物B和单体组合物C混合或分散在分散介质中以获得可聚合组合物D; 并在含有分散稳定剂的水性分散介质中匀化组合物D以产生液滴; 聚合液滴以获得着色聚合物颗粒; 并将外部添加剂附着在着色聚合物颗粒上。

3. 发明授权

US6054245A Electrophotographic developer and producing method thereof 有权
标题翻译：电子照相显影剂及其制备方法
公开(公告)号：US6054245A
公开(公告)日：2000-04-25
申请号：US404838
申请日：1999-09-24
申请人： Hidetoshi Azuma , Hiroshi Yamamoto
发明人： Hidetoshi Azuma , Hiroshi Yamamoto
IPC分类号： G03G9/08
CPC分类号： G03G9/0806 , G03G9/0821 , G03G9/0823
摘要： An object of the present invention is to provide an electrophotographic developer having a good fluidity, an excellent shelf stability, and a lesser reduction in image quality under various conditions.An electrophotographic one component nonmagnetic developer includes toner particles obtained by polymerizing a polymerizable monomer component, such as styrene, methacrylate, acrylate and the like, and outer-additives, such as silicon dioxide particles, on the toner particles. The developer has pH of 4 to 7 measured by a decoction method, and .sigma.2 of not more than 20 .mu.S/cm and .sigma.2-.sigma.1 of 0 to 10 .mu.S/cm, in which .sigma.1 is an electric conductivity of water, .sigma.2 is an electric conductivity measured by a decoction method.
摘要翻译：本发明的目的是提供一种具有良好流动性，优异的储存稳定性和在各种条件下图像质量降低的电子照相显影剂。电子照相单组分非磁性显影剂包括通过使可聚合单体组分如苯乙烯，甲基丙烯酸酯，丙烯酸酯等聚合而获得的调色剂颗粒和外部添加剂如二氧化硅颗粒在调色剂颗粒上。显影剂通过煎煮法测量的pH为4至7，σ2不超过20μS/ cm，σ2σ1为0至10μS/ cm，其中σ1为水，西格玛2是通过煎煮法测量的电导率。

4. 发明授权

US6025106A Electrophotographic developer and producing method thereof 失效
标题翻译：电子照相显影剂及其制备方法
公开(公告)号：US6025106A
公开(公告)日：2000-02-15
申请号：US102663
申请日：1998-06-23
申请人： Hidetoshi Azuma , Hiroshi Yamamoto
发明人： Hidetoshi Azuma , Hiroshi Yamamoto
IPC分类号： G03G9/08 , G03G9/097
CPC分类号： G03G9/0806 , G03G9/0821 , G03G9/0823
摘要： An object of the present invention is to provide an electrophotographic developer having a good fluidity, an excellent shelf stability, and a lesser reduction in image quality under various conditions.An electrophotographic one component nonmagnetic developer includes toner particles obtained by polymerizing a polymerizable monomer component, such as styrene, methacrylate, acrylate and the like, and outer-additives, such as silicon dioxide particles, on the toner particles. The developer has pH of 4 to 7 measured by a decoction method, and .sigma.2 of not more than 20 .mu.S/cm and .sigma.2 - .sigma.1 of 0 to 10 .mu.S/cm, in which .sigma.1 is an electric conductivity of water, .sigma.2 is an electric conductivity measured by a decoction method.
摘要翻译：本发明的目的是提供一种具有良好流动性，优异的储存稳定性和在各种条件下图像质量降低的电子照相显影剂。电子照相单组分非磁性显影剂包括通过使可聚合单体组分如苯乙烯，甲基丙烯酸酯，丙烯酸酯等聚合而获得的调色剂颗粒和外部添加剂如二氧化硅颗粒在调色剂颗粒上。显影剂通过煎煮法测量的pH为4至7，σ2不超过20μS/ cm，σ2-σ1为0至10μS/ cm，其中σ1为水，西格玛2是通过煎煮法测量的电导率。

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