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公开(公告)号：US09256153B2
公开(公告)日：2016-02-09
申请号：US14680034
申请日：2015-04-06
发明人： Takehiko Aoyama , Taichi Sato , Tomohito Taniguchi
IPC分类号： G03G15/02
CPC分类号： G03G15/0208 , G03G15/0233
摘要： Provided a charging member including an electro-conductive substrate and a surface layer. The surface layer includes a binder resin, and a resin particle that roughens the surface layer. A surface of the charging member has a plurality of protrusions each derived from the resin particle. The resin particle has a pore inside thereof, has a porosity Vt of 1.5% by volume or more and 45.0% by volume or less, and has a first and second regions. The first region has a porosity V1, the second region thereof has a porosity V2, and V1 is larger than V2.
摘要翻译： 提供一种包括导电基底和表面层的充电构件。 表面层包括粘合剂树脂和使表面层粗糙的树脂颗粒。 充电构件的表面具有从树脂颗粒衍生的多个突起。 树脂粒子内部具有孔，孔隙率Vt为1.5体积％以上且45.0体积％以下，具有第一和第二区域。 第一区域具有孔隙率V1，其第二区域具有孔隙率V2，并且V1大于V2。
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公开(公告)号：US20150003874A1
公开(公告)日：2015-01-01
申请号：US14316040
申请日：2014-06-26
发明人： Takehiko Aoyama , Tomohito Taniguchi , Noboru Miyagawa , Taichi Sato , Atsushi Uematsu , Masahiro Watanabe , Yoshitaka Suzumura
CPC分类号： G03G15/0233
摘要： There are provided an image forming apparatus in which the generation of lateral streak images due to a decrease in the in-nip discharge intensity is suppressed while at the same time the generation of spot-like images due to abnormal discharge caused by smudges on the surface of a charging member is suppressed, and a process cartridge.The image forming apparatus and the process cartridge each has: a charging member containing a resin particle having a plurality of pores inside thereof; and a toner in which the coverage ratio X1 of a surface of the toner with silica fine particles is 50.0 area % or more and 75.0 area % or less, and when a theoretical coverage ratio with the silica fine particles is X2, a diffusion index represented by formula 1 satisfies formula 2. diffusion index=X1/X2 (formula 1) diffusion index≧−0.0042×X1+0.62 (formula 2)
摘要翻译： 提供了一种图像形成装置，其中抑制了由于挤压间隙放电强度降低导致的横向条纹图像的产生，同时由于由表面上的污迹引起的异常放电而产生斑点状图像 以及处理盒。 图像形成装置和处理盒各自具有：包含其内部具有多个孔的树脂颗粒的充电构件; 调色剂与二氧化硅微粒的表面的覆盖率X1为50.0面积％以上且75.0面积％以下的调色剂，当与二氧化硅微粒的理论覆盖率为X2时，扩散指数为 通式1满足公式2.扩散指数= X1 / X2（式1）扩散指数≧-0.0042×X1 + 0.62（式2）
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3.发明申请公开(公告)号：US20160291487A1
公开(公告)日：2016-10-06
申请号：US15077167
申请日：2016-03-22
发明人： Atsushi Uematsu , Tomohito Taniguchi , Masahiro Watanabe , Noboru Miyagawa , Taichi Sato , Takehiko Aoyama , Takeshi Yoshidome
CPC分类号： G03G5/043 , G03G5/0525
摘要： The electrophotographic member includes an electro-conductive substrate and an electro-conductive resin layer as the surface layer on the substrate. The electro-conductive resin layer contains a binder and a bowl-shaped resin particle; the surface of electrophotographic member has a concavity derived from the opening of the bowl-shaped resin particle, a protrusion derived from the edge portion of the opening and the electro-conductive resin layer; and when the surface of the member is observed using a scanning electron microscope at an accelerating voltage (1 kV) and a magnification (×2000) while applying a DC voltage (50 to 100 V) between an electrode disposed opposite to the electrophotographic member and the substrate, the brightness of the protrusion, K1, the brightness of the bottom of the concavity, K2, and the brightness of the exposed surface of the electro-conductive resin layer, K3, satisfy K2
摘要翻译： 电子照相构件包括导电基底和作为基底上的表面层的导电树脂层。 导电性树脂层含有粘合剂和碗状树脂颗粒; 电子照相构件的表面具有源自碗形树脂颗粒的开口的凹陷，源自开口的边缘部分的突起和导电树脂层; 并且当在与电子照相构件相对设置的电极之间施加DC电压（50至100V）时，使用扫描电子显微镜在加速电压（1kV）和放大倍率（×2000）下观察构件的表面，并且 基板，突起的亮度，K1，凹部的底部的亮度K2以及导电性树脂层的暴露面的亮度K3满足K2
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公开(公告)号：US20160062259A1
公开(公告)日：2016-03-03
申请号：US14838191
申请日：2015-08-27
发明人： Noboru Miyagawa , Tomohito Taniguchi , Masahiro Watanabe , Taichi Sato , Takehiko Aoyama , Atsushi Uematsu
IPC分类号： G03G15/02
CPC分类号： G03G15/0233
摘要： A charging member includes an electro-conductive substrate and an electro-conductive resin layer. The electro-conductive resin layer contains a binder, a plurality of bowl-shaped resin particles, and a plurality of hollow particles. The charging member has a surface having recesses due to openings of the bowl-shaped resin particles and protrusions due to edges of the openings of the bowl-shaped resin particles, where the positional relationship between one bowl-shaped resin particle and the hollow particles lying in the vicinity of the bowl-shaped resin particle is that the number of the hollow particles being in the space under the bowl-shaped resin particle in a predetermined depth is at least four in average.
摘要翻译： 充电部件包括导电性基板和导电性树脂层。 导电性树脂层含有粘合剂，多个碗状树脂粒子和多个中空粒子。 充电构件具有由于碗形树脂颗粒的开口和由于碗形树脂颗粒的开口的边缘引起的突起的凹部的表面，其中一个碗形树脂颗粒和中空颗粒之间的位置关系位于 在碗状树脂颗粒附近，在规定深度的碗状树脂粒子的下方的空间的平均数为4个以上。
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5.发明授权Electrophotographic image forming apparatus having charge transport layer with matrix-domain structure and charging member having concavity and protrusion 有权具有具有矩阵结构的电荷传输层和具有凹凸的充电部件的电子照相图像形成装置公开(公告)号：US09274442B2
公开(公告)日：2016-03-01
申请号：US14662228
申请日：2015-03-18
发明人： Taichi Sato , Tomohito Taniguchi , Noboru Miyagawa , Takehiko Aoyama , Atsushi Uematsu , Masahiro Watanabe , Yuki Yamamoto , Harunobu Ogaki , Akihiro Maruyama , Takashi Anezaki , Daisuke Miura , Hirofumi Kumoi
CPC分类号： G03G5/04 , G03G5/056 , G03G5/0564 , G03G5/0578 , G03G5/0592 , G03G5/0596 , G03G15/0233
摘要： Provided an electrophotographic image forming apparatus comprising an electrophotographic photosensitive member and a charging member. The electrophotographic photosensitive member includes a charge transport layer as a surface layer having a matrix-domain structure including specific resins. The charging member comprises an electro-conductive substrate, and an electro-conductive elastic layer. The electro-conductive elastic layer comprises a binder, and holding a bowl-shaped resin particle having an opening, so that at least a part of the bowl-shaped resin particle is exposed, and the charging member has a concavity derived from the opening of the bowl-shaped resin particle on the surface thereof, and a protrusion derived from an edge of the opening of the bowl-shaped resin particle on the surface thereof.
摘要翻译： 提供了一种包括电子照相感光构件和充电构件的电子照相图像形成装置。 电子照相感光构件包括作为具有包含特定树脂的基质结构结构的表面层的电荷输送层。 充电构件包括导电衬底和导电弹性层。 导电弹性层包括粘合剂，并且保持具有开口的碗形树脂颗粒，使得至少一部分碗形树脂颗粒暴露，并且充电构件具有从开口的开口衍生的凹部 其表面上的碗形树脂颗粒和从其表面上的碗形树脂颗粒的开口的边缘衍生的突起。
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公开(公告)号：US20150301469A1
公开(公告)日：2015-10-22
申请号：US14680034
申请日：2015-04-06
发明人： Takehiko Aoyama , Taichi Sato , Tomohito Taniguchi
IPC分类号： G03G15/02
CPC分类号： G03G15/0208 , G03G15/0233
摘要： Provided a charging member including an electro-conductive substrate and a surface layer. The surface layer includes a binder resin, and a resin particle that roughens the surface layer. A surface of the charging member has a plurality of protrusions each derived from the resin particle. The resin particle has a pore inside thereof, has a porosity Vt of 1.5% by volume or more and 45.0% by volume or less, and has a first and second regions. The first region has a porosity V1, the second region thereof has a porosity V2, and V1 is larger than V2.
摘要翻译： 提供一种包括导电基底和表面层的充电构件。 表面层包括粘合剂树脂和使表面层粗糙的树脂颗粒。 充电构件的表面具有从树脂颗粒衍生的多个突起。 树脂粒子内部具有孔，孔隙率Vt为1.5体积％以上且45.0体积％以下，具有第一和第二区域。 第一区域具有孔隙率V1，其第二区域具有孔隙率V2，并且V1大于V2。
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公开(公告)号：US11945414B2
公开(公告)日：2024-04-02
申请号：US18158617
申请日：2023-01-24
发明人： Takehiko Aoyama , Masanori Yokoyama , Syoji Inoue , Arihiro Yamamoto , Hidekazu Matsuda , Shota Segawa
IPC分类号： B60S1/38 , C08G18/10 , C08G18/16 , C08G18/18 , C08G18/22 , C08G18/32 , C08G18/42 , C08G18/48 , C08G18/76 , C08G18/77 , C08L75/04
CPC分类号： B60S1/38 , C08G18/10 , C08G18/163 , C08G18/1816 , C08G18/225 , C08G18/3206 , C08G18/4238 , C08G18/4854 , C08G18/7664 , C08G18/7671 , C08G18/775 , C08L75/04 , B60S2001/3829 , B60S2001/3836 , C08L2207/32
摘要： A vehicle windshield wiper blade comprising: a blade support portion; and a lip portion, wherein the lip portion has a tapered portion having a cross section that is taken along a direction perpendicular to the longitudinal direction of the wiper blade and that has a width that gradually decreases from a side closer to the blade support portion towards a direction farthest away from the blade support portion, the lip portion has a tip surface and first and second tapered surfaces constituting the tapered portion, and, in a specific observation region of the first and second tapered surfaces, the average value of the elastic modulus measured at a 0.1 μm pitch is 15-470 MPa and the coefficient of variation of the elastic modulus is at most 17.6%.
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公开(公告)号：US09678452B2
公开(公告)日：2017-06-13
申请号：US15082998
申请日：2016-03-28
发明人： Masahiro Watanabe , Tomohito Taniguchi , Noboru Miyagawa , Taichi Sato , Takehiko Aoyama , Takeshi Yoshidome , Atsushi Uematsu
IPC分类号： G03G15/02
CPC分类号： G03G15/0233
摘要： A roller for electrophotography including a mandrel and an elastic layer on the mandrel is provided. The elastic layer contains a hollow particle in a region from the surface of the elastic layer to a depth of 100 μm. A cross-section of the hollow particle intersected by a first plane and a cross-section of the hollow particle intersected by a second plane each have a ratio of the length of the long axis to the length of the short axis of 1.2 or more and 1.9 or less.
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9.发明申请公开(公告)号：US20160291497A1
公开(公告)日：2016-10-06
申请号：US15082998
申请日：2016-03-28
发明人： Masahiro Watanabe , Tomohito Taniguchi , Noboru Miyagawa , Taichi Sato , Takehiko Aoyama , Takeshi Yoshidome , Atsushi Uematsu
IPC分类号： G03G15/02
CPC分类号： G03G15/0233
摘要： A roller for electrophotography including a mandrel and an elastic layer on the mandrel is provided. The elastic layer contains a hollow particle in a region from the surface of the elastic layer to a depth of 100 μm. A cross-section of the hollow particle intersected by a first plane and a cross-section of the hollow particle intersected by a second plane each have a ratio of the length of the long axis to the length of the short axis of 1.2 or more and 1.9 or less.
摘要翻译： 提供了一种用于电子照相的辊，其包括心轴上的心轴和弹性层。 弹性层在从弹性层的表面到100μm的深度的区域中含有中空粒子。 与由第二平面相交的第一平面和中空颗粒的横截面相交的中空颗粒的横截面各自具有长轴长度与短轴长度的比率为1.2以上， 1.9以下。
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公开(公告)号：US09274496B2
公开(公告)日：2016-03-01
申请号：US14308396
申请日：2014-06-18
CPC分类号： G03G21/1814 , G03G5/05 , G03G5/056 , G03G5/0564 , G03G5/0589 , G03G5/147 , G03G5/14708 , G03G5/14752 , G03G5/14756 , G03G5/1476 , G03G5/14773 , G03G5/14786 , G03G15/02 , G03G15/0233 , G03G15/75 , G03G21/18
摘要： Uneven charging is improved, and production of a banding image attributed to a slip between the charging member and the electrophotographic photosensitive member is suppressed. An electrophotographic process cartridge including a charging member and an electrophotographic photosensitive member which is electrically charged upon being brought into contact with the charging member, wherein the charging member includes a electro-conductive substrate and a surface layer formed on the electro-conductive substrate; the surface layer contains at least a binder resin, an electron conductive agent, and a resin particle having a plurality of pores inside thereof; the surface of the surface layer has a protrusion derived from the resin particle; the electrophotographic photosensitive member includes a support and a photosensitive layer formed on the support; and the surface layer of the electrophotographic photosensitive member contains a specific component.
摘要翻译： 改善了不均匀充电，并且抑制了归因于充电构件和电子照相感光构件之间的滑动的带状图像的产生。 一种电子照相处理盒，包括充电部件和与充电部件接触时带电的电子照相感光部件，其中充电部件包括导电基板和形成在导电基板上的表面层; 表层至少含有粘合剂树脂，电子传导剂和在其内部具有多个孔的树脂颗粒; 表面层的表面具有衍生自树脂颗粒的突起; 电子照相感光构件包括支撑体和形成在支撑体上的感光层; 并且电子照相感光构件的表面层含有特定成分。
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