公开(公告)号：US08968168B2

公开(公告)日：2015-03-03

申请号：US13388398

申请日：2009-08-21

申请人： Tomoharu Takeuchi ,  Hiroyuki Takanashi ,  Taichi Ohkubo

发明人： Tomoharu Takeuchi ,  Hiroyuki Takanashi ,  Taichi Ohkubo

IPC分类号： G03G15/16 ,  G03G15/02 ,  G03G15/08 ,  G03G15/20

CPC分类号： G03G15/0233 ,  G03G15/0818 ,  G03G15/1685 ,  G03G15/2057

摘要： This invention provides an electrically conductive roller capable of forming an image without fogging even in a low humidity environment and an image-forming device. Specifically, the invention relates to an electrically conductive roller has an elastic layer formed on an outer circumferential surface of a shaft and a urethane coat layer formed on an outer circumferential surface of the elastic layer, wherein the urethane coat layer includes a urethane resin, and at least one ionic liquid selected from the group consisting of pyridinium ionic liquids and amine ionic liquids, in an amount from 1 to 20 parts by mass to 100 parts by mass of the urethane resin; and an image-forming device equipped with the electrically conductive roller.

摘要翻译： 本发明提供一种即使在低湿度环境下也能够形成图像而不起雾的导电辊和图像形成装置。 具体而言，本发明涉及一种导电辊，其具有形成在轴的外周面上的弹性层和形成在弹性层的外周面上的聚氨酯涂层，其中，所述聚氨酯涂层包含聚氨酯树脂，以及 选自吡啶鎓离子液体和胺离子液体的至少一种离子液体，其量为1至20质量份至100质量份的聚氨酯树脂; 以及配备有导电辊的图像形成装置。

公开(公告)号：US20120134714A1

公开(公告)日：2012-05-31

申请号：US13388398

申请日：2009-08-21

申请人： Tomoharu Takeuchi ,  Hiroyuki Takanashi ,  Taichi Ohkubo

发明人： Tomoharu Takeuchi ,  Hiroyuki Takanashi ,  Taichi Ohkubo

IPC分类号： G03G15/02

CPC分类号： G03G15/0233 ,  G03G15/0818 ,  G03G15/1685 ,  G03G15/2057

摘要： This invention provides an electrically conductive roller capable of forming an image without fogging even in a low humidity environment and an image-forming device. Specifically, the invention relates to an electrically conductive roller has an elastic layer formed on an outer circumferential surface of a shaft and a urethane coat layer formed on an outer circumferential surface of the elastic layer, wherein the urethane coat layer includes a urethane resin, and at least one ionic liquid selected from the group consisting of pyridinium ionic liquids and amine ionic liquids, in an amount from 1 to 20 parts by mass to 100 parts by mass of the urethane resin; and an image-forming device equipped with the electrically conductive roller.

摘要翻译： 本发明提供一种即使在低湿度环境下也能够形成图像而不起雾的导电辊和图像形成装置。 具体而言，本发明涉及一种导电辊，其具有形成在轴的外周面上的弹性层和形成在弹性层的外周面上的聚氨酯涂层，其中，所述聚氨酯涂层包含聚氨酯树脂，以及 选自吡啶鎓离子液体和胺离子液体的至少一种离子液体，其量为1至20质量份至100质量份的聚氨酯树脂; 以及配备有导电辊的图像形成装置。

公开(公告)号：US20130272755A1

公开(公告)日：2013-10-17

申请号：US13976190

申请日：2011-02-24

申请人： Tomoharu Takeuchi ,  Taichi Ohkubo

发明人： Tomoharu Takeuchi ,  Taichi Ohkubo

IPC分类号： G03G15/08

CPC分类号： G03G15/0806 ,  C08G18/4238 ,  C08G18/73 ,  C08K3/04 ,  C08K3/36 ,  C08K2201/001 ,  C08L27/18 ,  C09D7/61 ,  C09D7/65 ,  C09D175/04 ,  C09D175/06 ,  G03G15/0818

摘要： Provided are a developing roller having an elastic layer formed on an outer circumferential face of a shaft and a coating layer formed on an outer circumferential face of the elastic layer, wherein the coating layer is composed of first coating layers that are formed at respective edges across the elastic layer, and a second coating layer formed between the first coating layers, and wherein the first coating layers contain a resin obtained through a reaction of a polyol with a silane-coupling agent, fluororesin particles, and an electric conductivity agent; and the second coating layer contains a urethane resin, an ionic liquid, an electric conductivity agent, and filler particles; and a development apparatus and an image-forming device having the developing roller. The provided are capable of keeping the image quality high and of arresting leakage of the toner satisfactorily.

摘要翻译： 提供一种显影辊，其具有形成在轴的外周面上的弹性层和形成在弹性层的外周面上的涂层，其中涂层由形成在相应边缘处的第一涂层组成 所述弹性层和形成在所述第一涂层之间的第二涂层，并且其中所述第一涂层含有通过多元醇与硅烷偶联剂反应获得的树脂，氟树脂颗粒和导电剂; 并且第二涂层含有聚氨酯树脂，离子液体，导电剂和填料颗粒; 以及具有显影辊的显影装置和图像形成装置。 所提供的能够保持图像质量高并且令墨粉的泄漏受到阻止。

公开(公告)号：US09014600B2

公开(公告)日：2015-04-21

申请号：US13976190

申请日：2011-02-24

申请人： Tomoharu Takeuchi ,  Taichi Ohkubo

发明人： Tomoharu Takeuchi ,  Taichi Ohkubo

IPC分类号： G03G15/08 ,  C09D175/04 ,  C08G18/73 ,  C09D175/06 ,  C08G18/42 ,  C09D7/12 ,  C08K3/04 ,  C08K3/36 ,  C08L27/18

CPC分类号： G03G15/0806 ,  C08G18/4238 ,  C08G18/73 ,  C08K3/04 ,  C08K3/36 ,  C08K2201/001 ,  C08L27/18 ,  C09D7/61 ,  C09D7/65 ,  C09D175/04 ,  C09D175/06 ,  G03G15/0818

摘要： Provided are a developing roller having an elastic layer formed on an outer circumferential face of a shaft and a coating layer formed on an outer circumferential face of the elastic layer, wherein the coating layer is composed of first coating layers that are formed at respective edges across the elastic layer, and a second coating layer formed between the first coating layers, and wherein the first coating layers contain a resin obtained through a reaction of a polyol with a silane-coupling agent, fluororesin particles, and an electric conductivity agent; and the second coating layer contains a urethane resin, an ionic liquid, an electric conductivity agent, and filler particles; and a development apparatus and an image-forming device having the developing roller. The provided are capable of keeping the image quality high and of arresting leakage of the toner satisfactorily.

摘要翻译： 提供一种显影辊，其具有形成在轴的外周面上的弹性层和形成在弹性层的外周面上的涂层，其中涂层由形成在相应边缘处的第一涂层组成 所述弹性层和形成在所述第一涂层之间的第二涂层，并且其中所述第一涂层含有通过多元醇与硅烷偶联剂反应获得的树脂，氟树脂颗粒和导电剂; 并且第二涂层含有聚氨酯树脂，离子液体，导电剂和填料颗粒; 以及具有显影辊的显影装置和图像形成装置。 所提供的能够保持图像质量高并且令墨粉的泄漏受到阻止。

公开(公告)号：US20070217820A1

公开(公告)日：2007-09-20

申请号：US11628310

申请日：2005-05-31

申请人： Kazunori Shigemori ,  Muneharu Ito ,  Toshiyuki Nagai ,  Toshiro Murano ,  Fuminori Tsuruta ,  Tomoharu Takeuchi ,  Masahiro Ikeda ,  Sokuei Motoda

发明人： Kazunori Shigemori ,  Muneharu Ito ,  Toshiyuki Nagai ,  Toshiro Murano ,  Fuminori Tsuruta ,  Tomoharu Takeuchi ,  Masahiro Ikeda ,  Sokuei Motoda

IPC分类号： G03G15/00

CPC分类号： G03G5/0666 ,  G03G5/0668 ,  G03G5/104 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/093 ,  G03G21/0017

摘要： In an image forming method including a charging step, an exposure step, a development step using a developing roll, a transfer step, a fixing step and a cleaning step of removing a toner remaining on the surface of a photosensitive member after the transfer step, the developing roll has a surface brightness of 30 to 220 and a surface roughness Rz of 1 to 20 μm, the cleaning blade is a cleaning blade made of a polyurethane elastomer and having a peak value of at most 0.95, a peak temperature of −15 to 10° C. and a width at half maximum of at least 25° C. in viscoelasticity tan δ, the toner has a volume average particle diameter of 4 to 10 μm and an average circularity from 0.950 to 0.995, the charge level of the toner on the surface of the photosensitive member is 10 to 80 μC/g in terms of an absolute value, and the pH of a water extract of the toner is 3 to 8.

摘要翻译： 在包括充电步骤，曝光步骤，使用显影辊的显影步骤，转印步骤，定影步骤和清洁步骤的图像形成方法中，在转印步骤之后去除残留在感光构件表面上的调色剂， 显影辊具有30至220的表面亮度和1至20μm的表面粗糙度Rz，清洁刮板是由聚氨酯弹性体制成的清洁刮板，其峰值最大为0.95，峰值温度为-15 调色剂的体积平均粒径为4〜10μm，平均圆形度为0.950〜0.995，电荷量为 感光构件表面上的调色剂的绝对值为10〜80μC/ g，调色剂的水提取物的pH为3〜8。

公开(公告)号：US07811738B2

公开(公告)日：2010-10-12

申请号：US11628310

申请日：2005-05-31

申请人： Kazunori Shigemori ,  Muneharu Ito ,  Toshiyuki Nagai ,  Toshiro Murano ,  Fuminori Tsuruta ,  Tomoharu Takeuchi ,  Masahiro Ikeda ,  Sokuei Motoda

发明人： Kazunori Shigemori ,  Muneharu Ito ,  Toshiyuki Nagai ,  Toshiro Murano ,  Fuminori Tsuruta ,  Tomoharu Takeuchi ,  Masahiro Ikeda ,  Sokuei Motoda

IPC分类号： G03G15/00

CPC分类号： G03G5/0666 ,  G03G5/0668 ,  G03G5/104 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/093 ,  G03G21/0017

摘要： In an image forming method including a charging step, an exposure step, a development step using a developing roll, a transfer step, a fixing step and a cleaning step of removing a toner remaining on the surface of a photosensitive member after the transfer step, the developing roll has a surface brightness of 30 to 220 and a surface roughness Rz of 1 to 20 μm, the cleaning blade is a cleaning blade made of a polyurethane elastomer and having a peak value of at most 0.95, a peak temperature of −15 to 10° C. and a width at half maximum of at least 25° C. in viscoelasticity tan δ, the toner has a volume average particle diameter of 4 to 10 μm and an average circularity from 0.950 to 0.995, the charge level of the toner on the surface of the photosensitive member is 10 to 80 μC/g in terms of an absolute value, and the pH of a water extract of the toner is 3 to 8.

摘要翻译： 在包括充电步骤，曝光步骤，使用显影辊的显影步骤，转印步骤，定影步骤和清洁步骤的图像形成方法中，在转印步骤之后去除残留在感光构件表面上的调色剂， 显影辊具有30至220的表面亮度和1至20μm的表面粗糙度Rz，清洁刮板是由聚氨酯弹性体制成的清洁刮板，峰值最大为0.95，峰值温度为-15 调色剂的体积平均粒径为4〜10μm，平均圆形度为0.950〜0.995，电荷量为 感光构件表面上的调色剂的绝对值为10〜80μC/ g，调色剂的水提取物的pH为3〜8。