公开(公告)号：US20150078777A1

公开(公告)日：2015-03-19

申请号：US14474870

申请日：2014-09-02

申请人： Keiichiro Juri ,  Hideaki Yasunaga

发明人： Keiichiro Juri ,  Hideaki Yasunaga

IPC分类号： G03G15/08

CPC分类号： G03G15/0881 ,  G03G15/0817 ,  G03G15/0818 ,  G03G2221/183

摘要： A developing device includes a developing roller including a base and a surface layer formed on the base, the surface layer including a polyurethane resin having a fluorine group and a polyfunctional isocyanurate structure, a toner storage chamber being partially in contact with the developing roller and to support the developing roller, and a sealing member provided at opposed ends of an end portion of the toner storage chamber in a rotating axis direction of the developing roller, and to seal in toner moving to the end portion of the toner storage chamber, the sealing member before use having a coefficient of static friction in a range of from 0.08 to 0.19.

摘要翻译： 显影装置包括：显影辊，包括基底和形成在基底上的表面层，所述表面层包括具有氟基的聚氨酯树脂和多官能异氰脲酸酯结构，调色剂储存室部分地与显影辊接触， 支撑显影辊，以及密封构件，其设置在调色剂储存室的端部的显影辊的旋转轴线方向的相对端部，并且密封调色剂移动到调色剂储存室的端部，密封件 使用前的静电摩擦系数在0.08至0.19的范围内。

公开(公告)号：US08526864B2

公开(公告)日：2013-09-03

申请号：US13071902

申请日：2011-03-25

申请人： Shuuichi Nakagawa ,  Chiyoshi Nozaki ,  Hideaki Yasunaga ,  Keiichiro Juri

发明人： Shuuichi Nakagawa ,  Chiyoshi Nozaki ,  Hideaki Yasunaga ,  Keiichiro Juri

IPC分类号： G03G15/08

CPC分类号： G03G15/0808 ,  G03G2215/0634 ,  G03G2215/0869

摘要： An image developer, including a developer container containing a developer developing a latent image on a latent image bearer; a developer bearer bearing the developer, located close to or contacting the latent image bearer; and a developer feeding and collection roller feeding the developer onto the developer bearer and scraping the developer therefrom, rotating while contacting thereto with pressure, wherein the developer feeding and collection roller includes an inner layer formed of an electroconductive foamed rubber; and an outer layer formed of an insulative foamed rubber, and wherein the following relationship is satisfied: α≧T wherein α represents a compression amount of the pressure of the developer feeding and collection roller to the developer bearer; and T represents a thickness of the outer layer, and wherein an offset voltage having a polarity opposite to that of the charged developer is applied to the developer feeding and collection roller.

摘要翻译： 一种图像显影剂，包括含有在潜像承载体上显影潜像的显影剂的显影剂容器; 承载显影剂的显影剂承载件位于靠近或接触潜影承载体的位置; 以及显影剂供给和收集辊，其将显影剂供给到显影剂承载体上并刮擦显影剂，同时与其接触压力旋转，其中显影剂供给和收集辊包括由导电泡沫橡胶形成的内层; 和由绝缘发泡橡胶形成的外层，并且其中满足以下关系：α> = T其中α表示显影剂供给和收集辊对显影剂载体的压力的压缩量; 并且T表示外层的厚度，并且其中具有极性与带电显影剂的极性相反的偏移电压被施加到显影剂供给和收集辊。

公开(公告)号：US06165664A

公开(公告)日：2000-12-26

申请号：US323270

申请日：1999-06-01

申请人： Makoto Kobayashi ,  Tomoharu Nishikawa ,  Hideaki Yasunaga ,  Koichi Takenaka

发明人： Makoto Kobayashi ,  Tomoharu Nishikawa ,  Hideaki Yasunaga ,  Koichi Takenaka

IPC分类号： G03G9/08 ,  G03G9/10 ,  G03G9/107 ,  G03G15/08

CPC分类号： G03G9/08 ,  G03G9/10

摘要： A two-component developing agent which is made from at least a carrier and a toner, characterized in that bulk specific density (AD.sub.1) of the carrier is set at 1.07 to 1.43 g/cc, bulk specific density (AD.sub.2) of the developing agent is set at 0.83 to 1.16 g/cc and AD.sub.2 /AD.sub.1 is set at 0.69 to 0.91. The present invention includes an image-forming method and an image-forming system, in which the above two-component developing agent is used.

摘要翻译： 由至少载体和调色剂制成的双组分显影剂，其特征在于载体的体积比密度（AD1）设定为1.07至1.43g / cc，显影剂的体积比密度（AD2） 设定为0.83〜1.16g / cc，AD2 / AD1为0.69〜0.91。 本发明包括使用上述双组分显影剂的图像形成方法和图像形成系统。

公开(公告)号：US6007956A

公开(公告)日：1999-12-28

申请号：US589081

申请日：1996-01-23

申请人： Hideaki Yasunaga ,  Tomoharu Nishikawa ,  Koichi Takenaka ,  Hiroshi Shibano

发明人： Hideaki Yasunaga ,  Tomoharu Nishikawa ,  Koichi Takenaka ,  Hiroshi Shibano

IPC分类号： G03G9/10 ,  G03G9/107 ,  G03G9/113

CPC分类号： G03G9/10 ,  G03G9/107 ,  G03G9/1139 ,  Y10T428/2998

摘要： The present invention relates a carrier comprising: a core particle comprising a binder resin and a first magnetic powder dispersed therein; and a second magnetic powder adhered onto the surface of the core particle, said second magnetic powder having a relative surface area larger than that of the first magnetic powder.

摘要翻译： 本发明涉及一种载体，其包括：包含粘合剂树脂和分散在其中的第一磁性粉末的核心颗粒; 以及附着在所述芯粒子的表面上的第二磁性粉末，所述第二磁性粉末的相对面积大于所述第一磁性粉末的相对面积。

公开(公告)号：US09778602B2

公开(公告)日：2017-10-03

申请号：US15074927

申请日：2016-03-18

申请人： Keiichiro Juri ,  Hideaki Yasunaga ,  Akira Izutani ,  Makoto Matsushita ,  Hiroaki Takahashi ,  Ayano Momose ,  Yuri Haga

发明人： Keiichiro Juri ,  Hideaki Yasunaga ,  Akira Izutani ,  Makoto Matsushita ,  Hiroaki Takahashi ,  Ayano Momose ,  Yuri Haga

IPC分类号： G03G15/16

CPC分类号： G03G15/162 ,  G03G15/1605 ,  G03G15/161

摘要： An image forming apparatus includes at least an image bearer; an electrostatic latent image former to form an electrostatic latent image on the image bearer; an image developer to develop the electrostatic latent image with a toner to from a toner image; a first transferer to transfer the toner image from the image bearer onto an intermediate transfer belt; and a cleaner including a cleaning blade having a Martens hardness of from 0.8 to 10.0 N/m2, to clean the intermediate transfer belt while contacting the surface of the intermediate transfer belt. The intermediate transfer belt includes a thermoplastic resin and a conductive resin, and has a surface concentration of oxygen atoms derived from the conductive resin, measured by XPS, of from 1.0% to 3.0% by atom.

公开(公告)号：US09122204B2

公开(公告)日：2015-09-01

申请号：US14474870

申请日：2014-09-02

申请人： Keiichiro Juri ,  Hideaki Yasunaga

发明人： Keiichiro Juri ,  Hideaki Yasunaga

IPC分类号： G03G15/08

CPC分类号： G03G15/0881 ,  G03G15/0817 ,  G03G15/0818 ,  G03G2221/183

摘要： A developing device includes a developing roller including a base and a surface layer formed on the base, the surface layer including a polyurethane resin having a fluorine group and a polyfunctional isocyanurate structure, a toner storage chamber being partially in contact with the developing roller and to support the developing roller, and a sealing member provided at opposed ends of an end portion of the toner storage chamber in a rotating axis direction of the developing roller, and to seal in toner moving to the end portion of the toner storage chamber, the sealing member before use having a coefficient of static friction in a range of from 0.08 to 0.19.

摘要翻译： 显影装置包括：显影辊，包括基底和形成在基底上的表面层，所述表面层包括具有氟基的聚氨酯树脂和多官能异氰脲酸酯结构，调色剂储存室部分地与显影辊接触， 支撑显影辊，以及密封构件，其设置在调色剂储存室的端部的显影辊的旋转轴线方向的相对端部，并且密封调色剂移动到调色剂储存室的端部，密封件 使用前的静电摩擦系数在0.08〜0.19的范围内。

公开(公告)号：US20130058685A1

公开(公告)日：2013-03-07

申请号：US13599729

申请日：2012-08-30

申请人： Keiichiro JURI ,  Hideaki Yasunaga

发明人： Keiichiro JURI ,  Hideaki Yasunaga

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G2215/0863

摘要： A developing roller including: a core metal; and an elastic layer formed on an outer circumference of the core metal, wherein an outermost surface of the developing roller is roughened, and wherein a difference between a maximum value and a minimum value of indentation power is 10% to 21%, wherein the indentation power is measured by a micro-indentation test at 120 locations with 3 degrees apart on a circumference of the developing roller, which is at a center of the developing roller with respect to a longitudinal direction.

摘要翻译： 一种显影辊，包括：芯金属; 以及形成在所述芯金属的外周上的弹性层，其中所述显影辊的最外表面被粗糙化，并且其中压痕力的最大值和最小值之间的差为10％至21％，其中所述压痕 通过在相对于纵向的显影辊的中心处的显影辊的圆周上的距离为3度的120个位置处的微压痕测试来测量功率。

公开(公告)号：US20120237270A1

公开(公告)日：2012-09-20

申请号：US13422739

申请日：2012-03-16

申请人： Keiichiro JURI ,  Chiyoshi Nozaki ,  Hideaki Yasunaga ,  Shuuichi Nakagawa

发明人： Keiichiro JURI ,  Chiyoshi Nozaki ,  Hideaki Yasunaga ,  Shuuichi Nakagawa

IPC分类号： G03G15/08

CPC分类号： G03G15/0818

摘要： A developing roller including: an electrically-conductive base; an elastic layer formed on an outer circumference of the electrically-conductive base; and a toner bearing layer formed on the elastic layer, wherein the toner bearing layer contains a polyurethane resin having an isocyanurate structure, and wherein the polyurethane resin has a ratio A/B of 1.0 to 10.0 where A denotes absorbance attributed to C═O of cyanurate and B denotes absorbance attributed to C═O of urethane in an infrared absorption spectrum of the polyurethane resin obtained by an ATR method.

摘要翻译： 一种显影辊，包括：导电基体; 形成在导电性基材的外周的弹性层; 以及形成在所述弹性层上的调色剂承载层，其中所述调色剂承载层含有具有异氰脲酸酯结构的聚氨酯树脂，并且其中所述聚氨酯树脂的A / B比为1.0至10.0，其中A表示归因于C = O的吸光度 氰尿酸酯，B表示通过ATR法得到的聚氨酯树脂的红外吸收光谱中归因于聚氨酯的C = O的吸光度。

公开(公告)号：US20110243616A1

公开(公告)日：2011-10-06

申请号：US13071902

申请日：2011-03-25

申请人： Shuuichi NAKAGAWA ,  Chiyoshi Nozaki ,  Hideaki Yasunaga ,  Keiichiro Juri

发明人： Shuuichi NAKAGAWA ,  Chiyoshi Nozaki ,  Hideaki Yasunaga ,  Keiichiro Juri

IPC分类号： G03G15/08

CPC分类号： G03G15/0808 ,  G03G2215/0634 ,  G03G2215/0869

摘要： An image developer, including a developer container containing a developer developing a latent image on a latent image bearer; a developer bearer bearing the developer, located close to or contacting the latent image bearer; and a developer feeding and collection roller feeding the developer onto the developer bearer and scraping the developer therefrom, rotating while contacting thereto with pressure, wherein the developer feeding and collection roller includes an inner layer formed of an electroconductive foamed rubber; and an outer layer formed of an insulative foamed rubber, and wherein the following relationship is satisfied: α≧T wherein α represents a compression amount of the pressure of the developer feeding and collection roller to the developer bearer; and T represents a thickness of the outer layer, and wherein an offset voltage having a polarity opposite to that of the charged developer is applied to the developer feeding and collection roller.

摘要翻译： 一种图像显影剂，包括含有在潜像承载体上显影潜像的显影剂的显影剂容器; 承载显影剂的显影剂承载件位于靠近或接触潜影承载体的位置; 以及显影剂供给和收集辊，其将显影剂供给到显影剂承载体上并刮擦显影剂，同时与其接触压力旋转，其中显影剂供给和收集辊包括由导电泡沫橡胶形成的内层; 和由绝缘发泡橡胶形成的外层，其中满足以下关系：α≥T其中α表示显影剂供给和收集辊对显影剂载体的压力的压缩量; 并且T表示外层的厚度，并且其中具有极性与带电显影剂的极性相反的偏移电压被施加到显影剂供给和收集辊。

公开(公告)号：US20060204882A1

公开(公告)日：2006-09-14

申请号：US11372186

申请日：2006-03-10

申请人： Tsuyoshi Nozaki ,  Chiyoshi Nozaki ,  Minoru Nakamura ,  Atsushi Yamamoto ,  Hideaki Yasunaga

发明人： Tsuyoshi Nozaki ,  Chiyoshi Nozaki ,  Minoru Nakamura ,  Atsushi Yamamoto ,  Hideaki Yasunaga

IPC分类号： G03G9/093

CPC分类号： G03G9/09371 ,  G03G9/0804 ,  G03G9/0806 ,  G03G9/09321 ,  G03G9/09335 ,  G03G9/09342 ,  G03G9/09378 ,  G03G9/09392

摘要： A toner having a core containing a colorant, a release agent and a binder resin (A), and a shell containing a binder resin (B), the shell overlying the core, wherein the binder resin (A) contains a resin having a polyester skeleton, the binder resin (B) contains a vinyl copolymer resin, and a weight ratio of the shell to the core is from 0.05 to 0.5, and wherein the toner has a volume average particle diameter of from 3 to 8 μm; a toner manufacturing method of such the toner can be used in an image forming apparatus and in a process cartridge.