公开(公告)号：US20080226357A1

公开(公告)日：2008-09-18

申请号：US11822393

申请日：2007-07-05

申请人： Tetsuo Sano ,  Yohei Nakade ,  Ichiro Demizu ,  Junpei Shouno

发明人： Tetsuo Sano ,  Yohei Nakade ,  Ichiro Demizu ,  Junpei Shouno

IPC分类号： G03G15/08

CPC分类号： G03G15/0818

摘要： A developing roller, having a surface layer composed of; a binder resin having an SP value in the range of 7.5 to 9.0; and roughness-imparting particles made from a resin having an SP value that has a difference from the SP value of said resin of 2 or less in the absolute value thereof, the roughness-imparting particles being dispersed in the binder resin, a developing device provided with the developing roller and an image-forming apparatus provided with such a developing device, a developing device provided with the developing roller, and an image-forming apparatus provided with the developing device equipped with the developing roller.

摘要翻译： 一种显影辊，具有由以下组成的表面层; 具有SP值在7.5〜9.0范围内的粘合剂树脂; 由具有与绝对值为2以下的SP值不同的SP值的树脂制成的粗糙度赋予粒子，将粗糙度赋予粒子分散在粘合剂树脂中的显影装置， 利用显影辊和设置有这种显影装置的图像形成装置，设置有显影辊的显影装置和设置有配有显影辊的显影装置的图像形成装置。

公开(公告)号：US07729648B2

公开(公告)日：2010-06-01

申请号：US11822393

申请日：2007-07-05

申请人： Tetsuo Sano ,  Yohei Nakade ,  Ichiro Demizu ,  Junpei Shouno

发明人： Tetsuo Sano ,  Yohei Nakade ,  Ichiro Demizu ,  Junpei Shouno

IPC分类号： G03G15/08

CPC分类号： G03G15/0818

摘要： A developing roller has a surface layer composed of a binder resin having an SP value in the range of 7.5 to 9.0, and roughness-imparting particles made from a resin having an SP value that has a difference from the SP value of the resin of 2 or less in the absolute value thereof. The roughness-imparting particles are dispersed in the binder resin. A developing device is provided with the developing roller. An image-forming apparatus is provided with the developing device equipped with the developing roller.

摘要翻译： 显影辊具有由SP值在7.5〜9.0范围内的粘合剂树脂构成的表面层，由具有与树脂SP值不同的SP值的树脂制成的粗糙度赋予粒子 以下的绝对值。 赋予粗糙度的颗粒分散在粘合剂树脂中。 显影装置设有显影辊。 图像形成装置设置有配备有显影辊的显影装置。

公开(公告)号：US20090311003A1

公开(公告)日：2009-12-17

申请号：US12481790

申请日：2009-06-10

申请人： Junpei Shouno ,  Yohei Nakade ,  Ichiro Demizu

发明人： Junpei Shouno ,  Yohei Nakade ,  Ichiro Demizu

IPC分类号： G03G15/16 ,  G03G21/00

CPC分类号： G03G21/0058 ,  G03G15/161 ,  G03G2215/1661 ,  G03G2221/1642

摘要： A cleaning roller has a core and a polyurethane foam layer covering the core to form a peripheral surface of the cleaning roller adapted to be in contact with a peripheral surface of the toner image bearing member. The polyurethane foam is designed so that the number of cell per inch thereof is 30 or more and 60 or less and an open ratio of cell walls thereof is 3% or more and 50% or less.

摘要翻译： 清洁辊具有覆盖芯的芯和聚氨酯泡沫层，以形成适于与调色剂图像承载部件的外周表面接触的清洁辊的周边表面。 聚氨酯泡沫的设计使得每英寸的电池数为30以上且60以下，电池壁的开放率为3％以上且50％以下。

公开(公告)号：US08045903B2

公开(公告)日：2011-10-25

申请号：US12431843

申请日：2009-04-29

申请人： Junpei Shouno ,  Yohei Nakade ,  Ichiro Demizu

发明人： Junpei Shouno ,  Yohei Nakade ,  Ichiro Demizu

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G15/0896

摘要： A developing device of an electrophotographic image forming apparatus has a first roller and a second roller disposed in a peripheral contact with the first roller to define a contact region therebetween so that the first roller is capable of supplying and collecting a toner to and from the second roller in the contact region. The first roller has a core and a polyurethane foam layer. The polyurethane foam has an open ratio of cells of 2% or more and 50% or less and a hardness of 1 gf/mm or more and 6 gf/mm or less, the hardness being defined by a load per unit length in a longitudinal direction of the first roller, the load being determined by forcing the peripheral surface of the polyurethane foam layer against a substrate, measuring a load necessary for the polyurethane foam layer to be compressed by 30% in thickness, and dividing the load by a length of the polyurethane foam layer in the longitudinal direction. The first and second rollers are disposed so that the contact region has a peripheral width of 3 mm or more and 8 mm or less.

摘要翻译： 电子照相图像形成装置的显影装置具有第一辊和第二辊，该第一辊和第二辊设置成与第一辊周边接触以限定其间的接触区域，使得第一辊能够向第二辊和第二辊供应和从第二辊收集调色剂 辊在接触区域。 第一辊具有芯和聚氨酯泡沫层。 聚氨酯泡沫的开孔率为2％以上且50％以下，硬度为1gf / mm以上且6gf / mm以下，硬度由纵向的每单位长度的负荷 第一辊的方向，负载通过将聚氨酯泡沫层的外围表面强制抵抗基材而确定，测量要压缩的聚氨酯泡沫层所需的负载厚度为30％，并将负载除以长度 聚氨酯泡沫层在纵向上。 第一和第二辊被布置成使得接触区域的周边宽度为3mm以上且8mm以下。

公开(公告)号：US20090279923A1

公开(公告)日：2009-11-12

申请号：US12431843

申请日：2009-04-29

申请人： Junpei Shouno ,  Yohei Nakade ,  Ichiro Demizu

发明人： Junpei Shouno ,  Yohei Nakade ,  Ichiro Demizu

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G15/0896

摘要： A developing device of an electrophotographic image forming apparatus has a first roller and a second roller disposed in a peripheral contact with the first roller to define a contact region therebetween so that the first roller is capable of supplying and collecting a toner to and from the second roller in the contact region. The first roller has a core and a polyurethane foam layer. The polyurethane foam has an open ratio of cells of 2% or more and 50% or less and a hardness of 1 gf/mm or more and 6 gf/mm or less, the hardness being defined by a load per unit length in a longitudinal direction of the first roller, the load being determined by forcing the peripheral surface of the polyurethane foam layer against a substrate, measuring a load necessary for the polyurethane foam layer to be compressed by 30% in thickness, and dividing the load by a length of the polyurethane foam layer in the longitudinal direction. The first and second rollers are disposed so that the contact region has a peripheral width of 3 mm or more and 8 mm or less.

摘要翻译： 电子照相图像形成装置的显影装置具有第一辊和第二辊，该第一辊和第二辊设置成与第一辊周边接触以限定其间的接触区域，使得第一辊能够向第二辊和第二辊供应和从第二辊收集调色剂 辊在接触区域。 第一辊具有芯和聚氨酯泡沫层。 聚氨酯泡沫的开孔率为2％以上且50％以下，硬度为1gf / mm以上且6gf / mm以下，硬度由纵向的每单位长度的负荷 第一辊的方向，负载通过将聚氨酯泡沫层的外围表面强制抵抗基材而确定，测量要压缩的聚氨酯泡沫层所需的负载厚度为30％，并将负载除以长度 聚氨酯泡沫层在纵向上。 第一和第二辊被布置成使得接触区域的周边宽度为3mm以上且8mm以下。

公开(公告)号：US08406678B2

公开(公告)日：2013-03-26

申请号：US12481790

申请日：2009-06-10

申请人： Junpei Shouno ,  Yohei Nakade ,  Ichiro Demizu

发明人： Junpei Shouno ,  Yohei Nakade ,  Ichiro Demizu

IPC分类号： G03G21/00

CPC分类号： G03G21/0058 ,  G03G15/161 ,  G03G2215/1661 ,  G03G2221/1642

摘要： A cleaning roller has a core and a polyurethane foam layer covering the core to form a peripheral surface of the cleaning roller adapted to be in contact with a peripheral surface of the toner image bearing member. The polyurethane foam is designed so that the number of cell per inch thereof is 30 or more and 60 or less and an open ratio of cell walls thereof is 3% or more and 50% or less.

摘要翻译： 清洁辊具有覆盖芯的芯和聚氨酯泡沫层，以形成适于与调色剂图像承载部件的外周表面接触的清洁辊的周边表面。 聚氨酯泡沫的设计使得每英寸的电池数为30以上且60以下，电池壁的开放率为3％以上且50％以下。

公开(公告)号：US08160470B2

公开(公告)日：2012-04-17

申请号：US12344674

申请日：2008-12-29

申请人： Junpei Shouno ,  Yohei Nakade ,  Ichiro Demizu

发明人： Junpei Shouno ,  Yohei Nakade ,  Ichiro Demizu

IPC分类号： G03G15/02

CPC分类号： G03G15/0225

摘要： A cleaning roller for cleaning a charging roller in an image forming apparatus is disposed in contact with an outer peripheral surface of a charging roller to remove foreign matters attached to the outer peripheral surface of the charging roller. The cleaning roller has a metal core and a polyurethane foam layer covering an outer peripheral surface of this metal core. The polyurethane foam layer includes a number of cells. The number of cells per inch is 40 or more and 80 or less, and an open ratio of a wall surface of cells is 3% or more and 50% or less.

摘要翻译： 用于清洁图像形成装置中的充电辊的清洁辊设置成与充电辊的外周表面接触以去除附着到充电辊的外周表面的异物。 清洁辊具有覆盖该金属芯的外周面的金属芯和聚氨酯泡沫层。 聚氨酯泡沫层包括多个泡孔。 每英寸的细胞数为40以上且80以下，细胞壁面的开放率为3％以上且50％以下。

公开(公告)号：US20070286647A1

公开(公告)日：2007-12-13

申请号：US11808880

申请日：2007-06-13

申请人： Tetsuo Sano ,  Yohei Nakade ,  Ichiro Demizu ,  Yoshikazu Aoki ,  Yuusuke Okuno ,  Takuya Okada

发明人： Tetsuo Sano ,  Yohei Nakade ,  Ichiro Demizu ,  Yoshikazu Aoki ,  Yuusuke Okuno ,  Takuya Okada

IPC分类号： G03G15/08

CPC分类号： G03G15/0808

摘要： A developing device has a developer bearing member, a housing adapted to accommodate a developer, and a supply roller adapted to supply the developer within the housing for the developer bearing member. The supply roller has an outer circumferencial foam layer made of resin or rubber. The foam layer has an air permeability of 150-200 ml/cm2/s, a hardness of 50-200 N, and an average cell density of 20-40 per 25 mm width.

摘要翻译： 显影装置具有显影剂承载构件，适于容纳显影剂的壳体和适于将显影剂供应到用于显影剂承载构件的壳体内的供应辊。 供料辊具有由树脂或橡胶制成的外周边泡沫层。 泡沫层的透气度为150-200ml / cm 2 / s，硬度为50-200N，平均泡孔密度为25-40个/ 25mm宽。

公开(公告)号：US20070286648A1

公开(公告)日：2007-12-13

申请号：US11808881

申请日：2007-06-13

申请人： Tetsuo Sano ,  Yohei Nakade ,  Ichiro Demizu ,  Yoshikazu Aoki ,  Yuusuke Okuno

发明人： Tetsuo Sano ,  Yohei Nakade ,  Ichiro Demizu ,  Yoshikazu Aoki ,  Yuusuke Okuno

IPC分类号： G03G15/08

CPC分类号： G03G15/0808

摘要： An image forming apparatus has an electrostatic latent image bearing member capable of bearing an electrostatic latent image thereon, and a developer apparatus having a developer material for visualizing the electrostatic latent image into a visualized image. The developer apparatus includes a developer material bearing member, a housing adapted to accommodate a developer material, and a supply roller adapted to supply the developer material within the housing for the developer material bearing member. The supply roller has an outer circumferencial foam layer. The foam layer is made of resin foam or rubber foam and has an air permeability of 5 ml/cm2/s or less, a density of 50-200 kg/m3, and a hysteresis loss ratio of 35-45 %.

摘要翻译： 图像形成装置具有能够在其上承载静电潜像的静电潜像承载部件和具有用于将静电潜像可视化为可视化图像的显影剂材料的显影装置。 显影剂装置包括显影剂材料承载构件，适于容纳显影剂材料的壳体和适于将显影剂材料供应到用于显影剂材料承载构件的壳体内的供应辊。 供应辊具有外周边泡沫层。 泡沫层由树脂泡沫或橡胶泡沫制成，透气度为5ml / cm 2 / s以下，密度为50-200kg / m 3 / >，滞后损失率为35-45％。

公开(公告)号：US20060018686A1

公开(公告)日：2006-01-26

申请号：US10967266

申请日：2004-10-19

申请人： Tetsuo Sano ,  Yohei Nakade ,  Ichiro Demizu

发明人： Tetsuo Sano ,  Yohei Nakade ,  Ichiro Demizu

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G2215/0861

摘要： A developing roller for use in an image-forming apparatus, comprising: a substrate; an elastic layer formed on the substrate; a primer layer formed on the elastic layer; and a surface-coating layer formed at the outermost surface, wherein the primer layer comprises a conductive substance, and a developing device equipped with the developing roller.

摘要翻译： 一种用于图像形成装置的显影辊，包括：基板; 形成在所述基板上的弹性层; 形成在弹性层上的底漆层; 以及形成在最外表面处的表面涂层，其中底漆层包括导电物质，以及配备有显影辊的显影装置。