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1. 发明授权

US08874007B2 Developing unit and electrophotographic image forming apparatus 有权
标题翻译：显影单元和电子照相成像设备
公开(公告)号：US08874007B2
公开(公告)日：2014-10-28
申请号：US14075410
申请日：2013-11-08
申请人： Canon Kabushiki Kaisha
发明人： Kunimasa Kawamura , Minoru Nakamura , Shohei Urushihara , Masaki Yamada , Yasushi Katsuta
IPC分类号： G03G15/08 , G03G9/08 , G03G9/00
CPC分类号： G03G15/0806 , G03G9/00 , G03G9/0821 , G03G9/08795 , G03G9/08797 , G03G15/0818
摘要： Provided are a developing unit alleviating fogging occurrence and an electrophotographic image forming apparatus providing images over long periods. The developing unit includes at least a toner of (1) and a developing roller of (2). (1) When a displacement amount when a load is applied at Y° C. and 9.8×10−5 N/sec to 2.94×10−4 N is X2(Y), a displacement amount when the toner is left to stand for 0.1 second is X3(Y), a displacement amount when the load is reduced at 9.8×10−5 N/sec to 0N is X4(Y), and percentage of (X3(Y)−X4(Y)) to X3(Y) is Z(Y), 40≦Z(25)≦80 and 10≦Z(50)≦55 are satisfied; when a gradient from the origin to the maximum load in the load-displacement curve at 25° C. is R(25), 0.49×10−3≦R(25)≦1.70×10−3 is satisfied; the toner has glass transition temperature TgA (40° C.-60° C.) and maximum endothermic peak temperature P1 (70° C.-110° C.), 15° C.≦(P1−TgA)≦70° C. is satisfied. (2) The developing roller includes a surface layer containing a urethane resin having structure (a), and one or both structures (b)-(c).
摘要翻译：提供减轻雾化的显影单元以及长时间提供图像的电子照相图像形成装置。显影单元至少包括（1）的调色剂和（2）的显影辊。（1）当在Y°C和9.8×10-5N / sec下施加负载的位移量为2.94×10 -4 N时，当调色剂静置时的位移量为 0.1秒是X3（Y），当负载在9.8×10-5N /秒下降到0N时的位移量为X4（Y），（X3（Y）-X4（Y））与X3（ Y）是Z（Y），40＆nlE; Z（25）＆nlE; 80和10＆nlE; Z（50）＆nlE; 55; 当在25℃的载荷 - 位移曲线中从原点到最大载荷的梯度为R（25）时，满足0.49×10-3＆nlE; R（25）＆nlE; 1.70×10-3; 调色剂具有玻璃化转变温度TgA（40℃-60℃）和最大吸热峰温度P1（70℃-110℃），15℃＆lt;（P1-TgA）＆nlE; 70 ℃。（2）显影辊包括含有具有结构（a）的聚氨酯树脂和一种或两种结构（b） - （c）的表面层。

2. 发明申请

US20140064792A1 DEVELOPING UNIT AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS 有权
标题翻译：发展单位和电子图像形成装置
公开(公告)号：US20140064792A1
公开(公告)日：2014-03-06
申请号：US14075410
申请日：2013-11-08
申请人： Canon Kabushiki Kaisha
发明人： Kunimasa Kawamura , Minoru Nakamura , Shohei Urushihara , Masaki Yamada , Yasushi Katsuta
IPC分类号： G03G15/08
CPC分类号： G03G15/0806 , G03G9/00 , G03G9/0821 , G03G9/08795 , G03G9/08797 , G03G15/0818
摘要： Provided are a developing unit alleviating fogging occurrence and an electrophotographic image forming apparatus providing images over long periods. The developing unit comprises at least toner (1), developing roller (2). (1) when a displacement amount when a load is applied at Y° C. and 9.8×10−5 N/sec to 2.94×10−4 N is X2(Y), a displacement amount when the toner is left to stand for 0.1 second is X3(Y), a displacement amount when the load is reduced at 9.8×10−5 N/sec to ON is X4(Y), and percentage of (X3(Y)−X4(Y)) to X3(Y) is Z(Y), 40≦Z(25)≦80 and 10≦Z(50)≦55 are satisfied; when a gradient from the origin to the maximum load in the load-displacement curve at 25° C. is R(25), 0.49×10−3≦R(25)≦1.70×10−3 is satisfied; the toner has glass transition temperature TgA (40° C.-60° C.) and maximum endothermic peak temperature P1 (70° C.-110° C.), 15° C.≦(P1−TgA)≦70° C. is satisfied. (2) developing roller comprises a surface layer containing a urethane resin having structure (a), and one or both structures (b)-(c).
摘要翻译：提供减轻雾化的显影单元以及长时间提供图像的电子照相图像形成装置。显影单元至少包括调色剂（1），显影辊（2）。（1）当在Y°C和9.8×10-5 N / sec施加负荷时的位移量为2.94×10 -4 N时，当调色剂静置时的位移量为 0.1秒是X3（Y），当负载在9.8×10-5 N /秒下降到ON时的位移量为X4（Y），（X3（Y）-X4（Y））与X3（ Y）是Z（Y），40 @ Z（25）@ 80和10 @ Z（50）@ 55; 当在25℃的载荷 - 位移曲线中从原点到最大载荷的梯度为R（25）时，满足0.49×10-3@R（25）@ 1.70×10-3; 调色剂具有玻璃化转变温度TgA（40℃-60℃）和最大吸热峰温度P1（70℃-110℃），15℃@（P1-TgA）@ 70℃ 满意（2）显影辊包括含有具有结构（a）的聚氨酯树脂和一种或两种结构（b） - （c）的表面层。

3. 发明申请

US20170293238A1 DEVELOPING MEMBER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20170293238A1
公开(公告)日：2017-10-12
申请号：US15482457
申请日：2017-04-07
申请人： CANON KABUSHIKI KAISHA
发明人： Kunimasa Kawamura , Makoto Souma , Wataru Moriai
IPC分类号： B32B9/04
CPC分类号： G03G15/0808 , G03G15/0818
摘要： A developing member includes a substrate, an elastic layer, and a surface layer in that order. The surface layer contains a urethane resin and a filler. The urethane resin has: the structure represented by structural formula (1) and at least one of the structures represented by structural formula (2) and structural formula (3), between two adjacent urethane linkages; and the structure represented by structural formula (4) and the structure represented by structural formula (5), between two adjacent urethane linkages. The structural formulas (1) to (5) are as follows:

4. 发明授权

US08768227B2 Developing member including elastic member containing cured product of addition-curing silicone rubber mixture, processing cartridge including the developing member, and electrophotographic apparatus including the developing member 有权
标题翻译：显影构件包括含有加成固化硅橡胶混合物的固化产物的弹性构件，包括显影构件的处理盒和包括显影构件的电子照相设备
公开(公告)号：US08768227B2
公开(公告)日：2014-07-01
申请号：US13770796
申请日：2013-02-19
申请人： Canon Kabushiki Kaisha
发明人： Shohei Urushihara , Minoru Nakamura , Kunimasa Kawamura , Masaki Yamada , Takashi Kusaba
IPC分类号： G03G15/08
CPC分类号： G03G15/0808 , G03G15/0818 , G03G21/1814
摘要： A developing roller includes: a mandrel; an elastic layer provided for an outer periphery of the mandrel, the elastic layer including an addition-curing silicone rubber; and a surface layer provided for an outer periphery of the elastic layer, in which: the elastic layer includes a compound represented by the following formula (1); when the content of such a compound that n in the formula (1) represents an integer of 3 to 12 in the elastic layer is represented by P1, and the content of such a compound that n in the formula (1) represents an integer of 13 to 20 in the elastic layer is represented by P2, P1+P2 is 5,000 ppm by mass to 12,000 ppm by mass; and P1 is 1,500 ppm by mass to 6,000 ppm by mass (In the formula (1), n represents an integer of 3 to 20):
摘要翻译：显影辊包括：心轴; 设置在所述心轴的外周的弹性层，所述弹性层包含加成固化硅橡胶; 以及设置在所述弹性层的外周的表层，其中：所述弹性层包含由下式（1）表示的化合物; 当在弹性层中式（1）中的n表示3〜12的整数的化合物的含量为P1时，式（1）中的n的化合物的含量为弹性层中的13〜20表示为P2，P1 + P2为5,000质量ppm〜12000质量ppm， P1为1500质量ppm〜6,000质量ppm（式（1）中，n表示3〜20的整数）：

5. 发明申请

US20140072350A1 DEVELOPING MEMBERINCLUDING ELASTIC MEMBER CONTAINING CURED PRODUCT OF ADDITION -CURING SILICONE RUBBER MIXTURE. PROCESSING CARTRIDGE INCLUDING THE DEVELOPING MEMBER, AND ELECTROPHOTOGRAPHIC APPARATUS INCLUDING THE DEVELOPING MEMBER 有权
标题翻译：包含含固化硅橡胶混合物的固化产品的弹性构件的开发。包括开发会员在内的加工盒，以及包括开发会员的电子显示装置
公开(公告)号：US20140072350A1
公开(公告)日：2014-03-13
申请号：US13770796
申请日：2013-02-19
申请人： CANON KABUSHIKI KAISHA
发明人： Shohei Urushihara , Minoru Nakamura , Kunimasa Kawamura , Masaki Yamada , Takashi Kusaba
IPC分类号： G03G15/08
CPC分类号： G03G15/0808 , G03G15/0818 , G03G21/1814
摘要： A developing roller includes: a mandrel; an elastic layer provided for an outer periphery of the mandrel, the elastic layer including an addition-curing silicone rubber; and a surface layer provided for an outer periphery of the elastic layer, in which: the elastic layer includes a compound represented by the following formula (1); when the content of such a compound that n in the formula (1) represents an integer of 3 to 12 in the elastic layer is represented by P1, and the content of such a compound that n in the formula (1) represents an integer of 13 to 20 in the elastic layer is represented by P2, P1+P2 is 5,000 ppm by mass to 12,000 ppm by mass; and P1 is 1,500 ppm by mass to 6,000 ppm by mass (In the formula (1), n represents an integer of 3 to 20):
摘要翻译：显影辊包括：心轴; 设置在所述心轴的外周的弹性层，所述弹性层包含加成固化硅橡胶; 以及设置在所述弹性层的外周的表层，其中：所述弹性层包含由下式（1）表示的化合物; 当在弹性层中式（1）中的n表示3〜12的整数的化合物的含量为P1时，式（1）中的n的化合物的含量为弹性层中的13〜20表示为P2，P1 + P2为5,000质量ppm〜12000质量ppm， P1为1500质量ppm〜6,000质量ppm（式（1）中，n表示3〜20的整数）：

6. 发明授权

US08655222B2 Developing member, process cartridge, and electrophotographic image forming apparatus 有权
标题翻译：显影元件，处理盒和电子照相成像设备
公开(公告)号：US08655222B2
公开(公告)日：2014-02-18
申请号：US13920007
申请日：2013-06-17
申请人： Canon Kabushiki Kaisha
发明人： Minoru Nakamura , Shohei Urushihara , Takashi Koyanagi , Kunimasa Kawamura , Masaki Yamada
IPC分类号： G03G15/08
CPC分类号： G03G15/0865 , G03G15/0818
摘要： Provided is a developing member capable of suppressing a variation in resistance even when exposed to a high-temperature, high-humidity environment for a long time period. The developing member comprises: a mandrel; an electro-conductive elastic layer provided on a periphery of the mandrel; and a surface layer provided on a surface of the elastic layer, wherein: the elastic layer contains a dimethyl silicone rubber and carbon black; and an amount α of a hydrogen atom bound to a silicon atom of the dimethyl silicone rubber, and an amount β of a hydrogen atom of methyl groups bound to a silicon atom of the dimethyl silicone rubber, satisfy a relationship of 2.5×10−5≦α/β≦1.0×10−4.
摘要翻译：即使长时间暴露在高温高湿环境下，也能够抑制电阻变化的显影部件。显影构件包括：心轴; 设置在心轴的周边上的导电弹性层; 以及设置在所述弹性层的表面上的表面层，其中：所述弹性层含有二甲基硅橡胶和炭黑; 并且与二甲基硅橡胶的硅原子结合的氢原子的量α和与二甲基硅橡胶的硅原子结合的甲基的氢原子的量的β满足2.5×10-5的关系 @ alpha / beta @ 1.0×10-4。

7. 发明申请

US20130028634A1 DEVELOPER SUPPORT MEMBER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS 有权
标题翻译：开发商支持会员，电子绘图工艺盒和电子图像形成装置
公开(公告)号：US20130028634A1
公开(公告)日：2013-01-31
申请号：US13646441
申请日：2012-10-05
申请人： CANON KABUSHIKI KAISHA
发明人： Takashi Koyanagi , Masaki Yamada , Kunimasa Kawamura , Yuji Sakurai
IPC分类号： G03G21/16 , G03G15/08
CPC分类号： G03G15/0818
摘要： A developing roller which is excellent in image quality and image durability and stably outputs a uniform image, and a process cartridge and an electrophotographic apparatus using the developing roller are provided. The developing roller has a mandrel, an elastic layer and a surface layer covering the elastic layer surface, wherein the surface layer contains a urethane resin having at least one structure of the followings A) and B) between two adjacent urethane linkages: A) a structure represented by the following structural formula (1), and at least one structure selected from the group consisting of structures represented by the following structural formulae (2) and (3), and B) a structure represented by the following structural formula (4), and the surface layer contains polyurethane resin particles of which the elastic part of the indentation work based on ISO 14577-1 is 80% or more, is obtained:
摘要翻译：提供了图像质量和图像耐久性优异并且稳定地输出均匀图像的显影辊，以及使用显影辊的处理盒和电子照相设备。显影辊具有心轴，弹性层和覆盖弹性层表面的表面层，其中表面层含有具有至少一种以下结构的聚氨酯树脂，A）和B）在两个相邻的氨基甲酸酯键之间：A）由以下结构式（1）表示的结构和至少一种选自由以下结构式（2）和（3）表示的结构的结构，以及B）由以下结构式（4）表示的结构），表面层含有基于ISO 14577-1的压痕的弹性部分为80％以上的聚氨酯树脂颗粒：

8. 发明申请

US20200073279A1 DEVELOPING ROLLER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20200073279A1
公开(公告)日：2020-03-05
申请号：US16541732
申请日：2019-08-15
申请人： CANON KABUSHIKI KAISHA
发明人： Kazuhito Wakabayashi , Kazuaki Nagaoka , Ryo Sugiyama , Kunimasa Kawamura , Minoru Nakamura
IPC分类号： G03G15/08 , G03G21/18
摘要： To provide a developing roller having improved toner conveying force in a high-temperature and high-humidity environment. The developing roller has a substrate and an electro-conductive layer on the substrate. The outer surface of the developing roller has an electrical insulating first region and an electro-conductive second region adjacent to the first region and at the same time has at least one groove in the first region.

9. 发明授权

US10365580B2 Developing member, electrophotographic process cartridge, and electrophotographic image forming apparatus 有权
公开(公告)号：US10365580B2
公开(公告)日：2019-07-30
申请号：US15482457
申请日：2017-04-07
申请人： CANON KABUSHIKI KAISHA
发明人： Kunimasa Kawamura , Makoto Souma , Wataru Moriai
IPC分类号： B32B9/04 , G03G15/08
摘要： A developing member includes a substrate, an elastic layer, and a surface layer in that order. The surface layer contains a urethane resin and a filler. The urethane resin has: the structure represented by structural formula (1) and at least one of the structures represented by structural formula (2) and structural formula (3), between two adjacent urethane linkages; and the structure represented by structural formula (4) and the structure represented by structural formula (5), between two adjacent urethane linkages. The structural formulas (1) to (5) are as follows:

10. 发明授权

US08768226B2 Developer support member, electrophotographic process cartridge and electrophotographic image forming apparatus 有权
标题翻译：显影剂支撑构件，电子照相处理盒和电子照相成像装置
公开(公告)号：US08768226B2
公开(公告)日：2014-07-01
申请号：US13646441
申请日：2012-10-05
申请人： Canon Kabushiki Kaisha
发明人： Takashi Koyanagi , Masaki Yamada , Kunimasa Kawamura , Yuji Sakurai
IPC分类号： G03G15/08
CPC分类号： G03G15/0818
摘要： A developing roller which is excellent in image quality and image durability and stably outputs a uniform image, and a process cartridge and an electrophotographic apparatus using the developing roller are provided. The developing roller has a mandrel, an elastic layer and a surface layer covering the elastic layer surface, wherein the surface layer contains a urethane resin having at least one structure of the followings A) and B) between two adjacent urethane linkages: A) a structure represented by the following structural formula (1), and at least one structure selected from the group consisting of structures represented by the following structural formulae (2) and (3), and B) a structure represented by the following structural formula (4), and the surface layer contains polyurethane resin particles of which the elastic part of the indentation work based on ISO 14577-1 is 80% or more, is obtained:
摘要翻译：提供了图像质量和图像耐久性优异并且稳定地输出均匀图像的显影辊，以及使用显影辊的处理盒和电子照相设备。显影辊具有心轴，弹性层和覆盖弹性层表面的表面层，其中表面层含有具有至少一种以下结构的聚氨酯树脂，A）和B）在两个相邻的氨基甲酸酯键之间：A）由以下结构式（1）表示的结构和至少一种选自由以下结构式（2）和（3）表示的结构的结构，以及B）由以下结构式（4）表示的结构），表面层含有基于ISO 14577-1的压痕的弹性部分为80％以上的聚氨酯树脂颗粒：

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