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1. 发明申请

US20070003331A1 Development roller 有权
标题翻译：开发辊
公开(公告)号：US20070003331A1
公开(公告)日：2007-01-04
申请号：US11451448
申请日：2006-06-13
申请人： Kota Kawano , Takayuki Sugimura , Kenichi Miyazaki
发明人： Kota Kawano , Takayuki Sugimura , Kenichi Miyazaki
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G2215/0861
摘要： A development roller is provided which can ensure a desired surface roughness and roller hardness even when an elastic layer has not sufficient solvent resistance and which can be preferably used for a long period of time without generating any peeling of a coating film during a continuous long operation. In the development roller, an underlying conductive layer having at least one sublayer and a surface resin layer are provided on the elastic layer in that order. The elastic layer is formed of a foam material having a closed cell structure, the underlying conductive layer is formed from a water-based paint containing a conductive agent, and one of the sublayers of the underlying conductive layer that is in contact with the elastic layer is at least primarily composed of a chloroprene-methacrylic acid copolymer.
摘要翻译：提供了一种显影辊，其即使在弹性层不具有足够的耐溶剂性的情况下也能够确保期望的表面粗糙度和辊子硬度，并且可以优选长时间使用，而不会在连续长时间操作期间产生涂膜剥离。在显影辊中，具有至少一个子层和表面树脂层的底层导电层依次设置在弹性层上。弹性层由具有闭孔结构的泡沫材料形成，下面的导电层由含有导电剂的水性涂料形成，并且与弹性层接触的底层导电层的一个子层至少主要由氯丁二烯 - 甲基丙烯酸共聚物组成。

2. 发明授权

US07526239B2 Development roller 有权
标题翻译：开发辊
公开(公告)号：US07526239B2
公开(公告)日：2009-04-28
申请号：US11451448
申请日：2006-06-13
申请人： Kota Kawano , Takayuki Sugimura , Kenichi Miyazaki
发明人： Kota Kawano , Takayuki Sugimura , Kenichi Miyazaki
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G2215/0861
摘要： A development roller is provided which can ensure a desired surface roughness and roller hardness even when an elastic layer has not sufficient solvent resistance and which can be preferably used for a long period of time without generating any peeling of a coating film during a continuous long operation. In the development roller, an underlying conductive layer having at least one sublayer and a surface resin layer are provided on the elastic layer in that order. The elastic layer is formed of a foam material having a closed cell structure, the underlying conductive layer is formed from a water-based paint containing a conductive agent, and one of the sublayers of the underlying conductive layer that is in contact with the elastic layer is at least primarily composed of a chloroprene-methacrylic acid copolymer.
摘要翻译：提供了一种显影辊，其即使在弹性层不具有足够的耐溶剂性的情况下也能够确保期望的表面粗糙度和辊子硬度，并且可以优选长时间使用，而不会在连续长时间操作期间产生涂膜剥离。在显影辊中，具有至少一个子层和表面树脂层的底层导电层依次设置在弹性层上。弹性层由具有闭孔结构的泡沫材料形成，下面的导电层由含有导电剂的水性涂料形成，并且与弹性层接触的底层导电层的一个子层至少主要由氯丁二烯 - 甲基丙烯酸共聚物组成。

3. 发明授权

US08932194B2 Electrically conductive roller 有权
标题翻译：导电辊
公开(公告)号：US08932194B2
公开(公告)日：2015-01-13
申请号：US12599634
申请日：2008-05-08
申请人： Hirotaka Tagawa , Kota Kawano , Takayuki Sugimura
发明人： Hirotaka Tagawa , Kota Kawano , Takayuki Sugimura
IPC分类号： G03G15/02 , C08G18/10 , C08G18/40 , G03G15/08 , G03G15/16 , G03G15/20
CPC分类号： G03G15/0233 , C08G18/10 , C08G18/4018 , G03G15/0818 , G03G15/1685 , G03G15/2053 , C08G18/40
摘要： An electrically conductive roller which may easily obtain a desired surface roughness, and which has good setting property without problems such as high cost and compression set is provided.An electrically conductive roller 10 comprises a shaft 1, an elastic layer 2 supported on the periphery of the shaft and one surface layer 3 formed on the peripheral surface of the elastic layer 2. The elastic layer 2 is composed of a urethane foam in which the degree of swelling is not more than 120% with respect to the solvent used in the formation of the surface layer 3. The urethane foam preferably contains, as a polyol component, a polyester polyol having a hydroxyl value of 200 to 400 and 3 or more functional groups.
摘要翻译：提供了可以容易地获得期望的表面粗糙度并且具有良好的设置性能的导电辊，而没有诸如高成本和压缩永久变形的问题。导电辊10包括轴1，支撑在轴的周边上的弹性层2和形成在弹性层2的外周表面上的一个表面层3.弹性层2由聚氨酯泡沫构成，其中相对于用于形成表面层3的溶剂，溶胀度不超过120％。聚氨酯泡沫优选含有羟值为200-400和3以上的聚酯多元醇作为多元醇成分功能组。

4. 发明授权

US08401444B2 Developing roller comprising surface layer containing water-dispersible silica and/or aqueous silicone acrylic graft polymer 有权
标题翻译：显影辊包括含有水分散性二氧化硅和/或含水硅氧烷丙烯酸接枝聚合物的表面层
公开(公告)号：US08401444B2
公开(公告)日：2013-03-19
申请号：US12669162
申请日：2008-07-14
申请人： Takayuki Sugimura , Kota Kawano , Hirotaka Tagawa
发明人： Takayuki Sugimura , Kota Kawano , Hirotaka Tagawa
IPC分类号： G03G15/08
CPC分类号： G03G15/0818
摘要： A developing roller which shows an excellent environmental performance and is free from occurrence of toner filming and toner leakage is provided. The developing roller 10 comprises a shaft 1, an elastic layer 2 supported on the outer periphery of the shaft 1, and a single surface layer 3 formed on the outer peripheral surface of the elastic layer 2. The elastic layer 2 comprises a polyurethane foam and the surface layer 3 comprises an aqueous polyurethane resin as a major component and further a water-dispersible silica and/or an aqueous silicone acrylic graft polymer. As the aqueous polyurethane resin, a UV curing resin may be preferably used.
摘要翻译：提供了显示出优异的环境性能并且没有发生调色剂成膜和调色剂泄漏的显影辊。显影辊10包括轴1，支撑在轴1的外周上的弹性层2和形成在弹性层2的外周表面上的单个表面层3.弹性层2包括聚氨酯泡沫和表面层3包含水性聚氨酯树脂作为主要成分，还含有水分散性二氧化硅和/或含水硅氧烷丙烯酸接枝聚合物。作为水性聚氨酯树脂，可以优选使用UV固化树脂。

5. 发明申请

US20110124478A1 ELECTRICALLY CONDUCTIVE ROLLER 有权
标题翻译：电导辊
公开(公告)号：US20110124478A1
公开(公告)日：2011-05-26
申请号：US12599634
申请日：2008-05-08
申请人： Hirotaka Tagawa , Kota Kawano , Takayuki Sugimura
发明人： Hirotaka Tagawa , Kota Kawano , Takayuki Sugimura
IPC分类号： F16C13/00
CPC分类号： G03G15/0233 , C08G18/10 , C08G18/4018 , G03G15/0818 , G03G15/1685 , G03G15/2053 , C08G18/40
摘要： An electrically conductive roller which may easily obtain a desired surface roughness, and which has good setting property without problems such as high cost and compression set is provided.An electrically conductive roller 10 comprises a shaft 1, an elastic layer 2 supported on the periphery of the shaft and one surface layer 3 formed on the peripheral surface of the elastic layer 2. The elastic layer 2 is composed of a urethane foam in which the degree of swelling is not more than 120% with respect to the solvent used in the formation of the surface layer 3. The urethane foam preferably contains, as a polyol component, a polyester polyol having a hydroxyl value of 200 to 400 and 3 or more functional groups.
摘要翻译：提供了可以容易地获得期望的表面粗糙度并且具有良好的设置性能的导电辊，而没有诸如高成本和压缩永久变形的问题。导电辊10包括轴1，支撑在轴的周边上的弹性层2和形成在弹性层2的外周表面上的一个表面层3.弹性层2由聚氨酯泡沫构成，其中相对于用于形成表面层3的溶剂，溶胀度不超过120％。聚氨酯泡沫优选含有羟值为200-400和3以上的聚酯多元醇作为多元醇成分功能组。

6. 发明申请

US20100189473A1 DEVELOPMENT ROLLER 有权
标题翻译：发展滚滚
公开(公告)号：US20100189473A1
公开(公告)日：2010-07-29
申请号：US12669162
申请日：2008-07-14
申请人： Takayuki Sugimura , Kota Kawano , Hirotaka Tagawa
发明人： Takayuki Sugimura , Kota Kawano , Hirotaka Tagawa
IPC分类号： G03G15/08
CPC分类号： G03G15/0818
摘要： A developing roller which shows an excellent environmental performance and is free from occurrence of toner filming and toner leakage is provided. The developing roller 10 comprises a shaft 1, an elastic layer 2 supported on the outer periphery of the shaft 1, and a single surface layer 3 formed on the outer peripheral surface of the elastic layer 2. The elastic layer 2 comprises a polyurethane foam and the surface layer 3 comprises an aqueous polyurethane resin as a major component and further a water-dispersible silica and/or an aqueous silicone acrylic graft polymer. As the aqueous polyurethane resin, a UV curing resin may be preferably used.
摘要翻译：提供了显示出优异的环境性能并且没有发生调色剂成膜和调色剂泄漏的显影辊。显影辊10包括轴1，支撑在轴1的外周上的弹性层2和形成在弹性层2的外周表面上的单个表面层3.弹性层2包括聚氨酯泡沫和表面层3包含水性聚氨酯树脂作为主要成分，还含有水分散性二氧化硅和/或含水硅氧烷丙烯酸接枝聚合物。作为水性聚氨酯树脂，可以优选使用UV固化树脂。

7. 发明授权

US06893580B2 Composition for synthetic resin magnet and formed resin magnet 失效
标题翻译：合成树脂磁体和成型树脂磁体的组成
公开(公告)号：US06893580B2
公开(公告)日：2005-05-17
申请号：US10398754
申请日：2001-07-30
申请人： Kota Kawano , Hideharu Daifuku
发明人： Kota Kawano , Hideharu Daifuku
IPC分类号： G03G15/09 , H01F1/08 , C08L77/08
CPC分类号： H01F1/083 , G03G15/0921
摘要： A composition for synthetic resin magnets (such as magnet rollers for electrophotography process) which is composed of a resin binder and a magnetic powder mixed and dispersed therein. The resin compound has improved melt flow rate because the binder contains a thermoplastic and an aliphatic polyamide. Owing to its improved melt flow rate, the resin compound can be incorporated with a large amount of magnetic powder without deterioration in moldability. Thus the resulting plastic magnet has a strong magnetic force. In addition, the composition for synthetic resin magnets may be incorporated with a hindered phenol antioxidant, so that it is molded at a higher temperature (120-180° C.) than usual to achieve the same object as mentioned above.
摘要翻译：由树脂粘合剂和混合分散在其中的磁性粉末组成的合成树脂磁体（例如电子照相法的磁辊）的组合物。树脂化合物具有改善的熔体流动速率，因为粘合剂含有热塑性和脂族聚酰胺。由于其熔体流动速率的改善，树脂化合物可以掺入大量的磁性粉末而不会降低成型性。因此，所得到的塑料磁体具有很强的磁力。此外，合成树脂磁体的组合物可以与受阻酚抗氧化剂结合，从而在比以往更高的温度（120-180℃）下模制以实现与上述相同的目的。

8. 发明授权

US06346565B1 Synthetic resin composition for resin magnet, molded resin magnet, and production process for synthetic resin composition 失效
标题翻译：用于树脂磁体的合成树脂组合物，模制树脂磁体和用于合成树脂组合物的制备方法
公开(公告)号：US06346565B1
公开(公告)日：2002-02-12
申请号：US09609549
申请日：2000-07-03
申请人： Hideharu Daifuku , Kota Kawano
发明人： Hideharu Daifuku , Kota Kawano
IPC分类号： C08K310
CPC分类号： C08K3/08 , G03G15/0921 , H01F1/083
摘要： A resin composition for a resin magnet includes a resin binder containing a thermoplastic resin as a main component and a polymerized fatty acid based polyamide elastomer: and a magnetic powder mixed and dispersed in said resin binder. The resin composition further contains an ultra fine powder of an inorganic filler having a particle size of 1 &mgr;m or less. A process of producing pellets of a resin composition for a resin magnet, includes the steps of: mixing pellets of a binder resin with a magnetic powder on a batch processing basis; supplying the mixture to a kneading-extruder by means of a counting feeder; and extrusion-molding the mixture, to obtain pellets of a molding material for a resin magnet, in which the magnetic powder is mixed and dispersed in the binder resin.
摘要翻译：用于树脂磁体的树脂组合物包括以热塑性树脂为主要成分的树脂粘合剂和聚合的脂肪酸基聚酰胺弹性体和混合并分散在所述树脂粘合剂中的磁性粉末。树脂组合物还含有粒径为1μm以下的无机填料的超细粉末。一种生产用于树脂磁体的树脂组合物的颗粒的方法，包括以下步骤：以批量处理为基础，将粘合剂树脂与磁性粉末的颗粒混合; 通过计数给料器将混合物供给到捏合挤出机中; 并将混合物挤出成型，得到用于树脂磁体的成型材料的粒料，其中将磁性粉末混合并分散在粘合剂树脂中。

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