公开(公告)号：US20110171570A1

公开(公告)日：2011-07-14

申请号：US12860406

申请日：2010-08-20

申请人： Hitoshi TAKIMOTO ,  Masahiro Iwasaki ,  Daisuke Haruyama ,  Hidemi Nukada ,  Mitsuhide Nakamura ,  Koji Bando

发明人： Hitoshi TAKIMOTO ,  Masahiro Iwasaki ,  Daisuke Haruyama ,  Hidemi Nukada ,  Mitsuhide Nakamura ,  Koji Bando

IPC分类号： G03G15/00 ,  G03G21/18

CPC分类号： G03G5/14791 ,  G03G5/0539 ,  G03G5/0575 ,  G03G5/0614 ,  G03G5/076 ,  G03G5/14726 ,  G03G5/14747 ,  G03G5/14769 ,  G03G5/14786

摘要： The invention provides an electrophotographic photoreceptor having at least: a substrate; a photosensitive layer provided on the substrate; and an overcoat layer provided on the photosensitive layer. The overcoat layer of the photoreceptor includes at least: a cross-linked component that is obtained by cross-linking of at least one selected from a guanamine compound or a melamine compound and a charge-transporting material having at least one substituent group selected from —OH, —OCH3, —NH2, —SH, or —COOH; fluoro-resin particles; and a fluoro-alkyl group-containing copolymer. The ratio of fluorine atom present in an outermost surface of the overcoat layer as measured with energy dispersive X-ray analysis (EDS) is from approximately 1.0% by mass to approximately 20.0% by mass. The invention further provides a process cartridge, an image forming apparatus, and a method of producing the electrophotographic photoreceptor.

摘要翻译： 本发明提供一种至少具有：基材的电子照相感光体; 设置在基板上的感光层; 以及设置在感光层上的外涂层。 感光体的外涂层至少包括：通过交联选自胍胺化合物或三聚氰胺化合物中的至少一种和具有至少一个选自以下的取代基的电荷输送材料获得的交联成分： OH，-OCH 3，-NH 2，-SH或-COOH; 氟树脂颗粒; 和含氟烷基的共聚物。 用能量色散X射线分析（EDS）测定的外涂层的最表面存在的氟原子的比例为约1.0质量％〜约20.0质量％。 本发明还提供一种处理盒，图像形成装置和制造电子照相感光体的方法。

公开(公告)号：US20080187846A1

公开(公告)日：2008-08-07

申请号：US11976295

申请日：2007-10-23

申请人： Hitoshi Takimoto ,  Kenta Ide ,  Toru Asahi ,  Hidemi Nukada ,  Takahiro Suzuki ,  Koji Bando

发明人： Hitoshi Takimoto ,  Kenta Ide ,  Toru Asahi ,  Hidemi Nukada ,  Takahiro Suzuki ,  Koji Bando

IPC分类号： G03G15/00

CPC分类号： G03G5/14704 ,  G03G5/051 ,  G03G5/0539 ,  G03G5/0592 ,  G03G5/0596 ,  G03G5/14726 ,  G03G5/14795 ,  G03G2215/00957 ,  G03G2221/183

摘要： An image carrier includes a conductive base material and a photosensitive layer formed on the base material. The photosensitive layer has an outermost surface layer that contains particles having a number-averaged particle sphericality represented by Formula (1) of approximately 0.7 or less: sphericality=4πA/L2 (1), where π represents the circular constant, A represents the projection area of the particle, and L represents the peripheral length of the projected particle image.

摘要翻译： 图像载体包括导电基材和形成在基材上的感光层。 感光层具有包含由式（1）表示的数均粒度为约0.7以下的粒子的最外表面层：球面度= 4piA / L 2（1），其中，pi表示 圆周常数A表示粒子的投影面积，L表示投影粒子图像的周长。

公开(公告)号：US08021810B2

公开(公告)日：2011-09-20

申请号：US11976295

申请日：2007-10-23

申请人： Hitoshi Takimoto ,  Kenta Ide ,  Toru Asahi ,  Hidemi Nukada ,  Takahiro Suzuki ,  Koji Bando

发明人： Hitoshi Takimoto ,  Kenta Ide ,  Toru Asahi ,  Hidemi Nukada ,  Takahiro Suzuki ,  Koji Bando

IPC分类号： G03G15/00

CPC分类号： G03G5/14704 ,  G03G5/051 ,  G03G5/0539 ,  G03G5/0592 ,  G03G5/0596 ,  G03G5/14726 ,  G03G5/14795 ,  G03G2215/00957 ,  G03G2221/183

摘要： An image carrier includes a conductive base material and a photosensitive layer formed on the base material. The photosensitive layer has an outermost surface layer that contains particles having a number-averaged particle sphericality represented by Formula (1) of approximately 0.7 or less: sphericality=4πA/L2 (1), where π represents the circular constant, A represents the projection area of the particle, and L represents the peripheral length of the projected particle image.

摘要翻译： 图像载体包括导电基材和形成在基材上的感光层。 感光层具有包含由式（1）表示的数均粒度为约0.7以下的粒子的最外表面层：球面度= 4＆amp; pgr; A / L2（1），其中＆pgr; 表示圆形常数，A表示颗粒的投影面积，L表示投影的颗粒图像的周长。

公开(公告)号：US06773857B2

公开(公告)日：2004-08-10

申请号：US10265783

申请日：2002-10-08

申请人： Hirofumi Nakamura ,  Ichiro Takegawa ,  Hidemi Nukada ,  Masahiro Iwasaki ,  Michiko Aida ,  Yukiko Kamijo ,  Masahiko Miyamoto ,  Tetsuya Ezumi ,  Takashi Yamada ,  Koji Bando ,  Taketoshi Hoshizaki

发明人： Hirofumi Nakamura ,  Ichiro Takegawa ,  Hidemi Nukada ,  Masahiro Iwasaki ,  Michiko Aida ,  Yukiko Kamijo ,  Masahiko Miyamoto ,  Tetsuya Ezumi ,  Takashi Yamada ,  Koji Bando ,  Taketoshi Hoshizaki

IPC分类号： G03G1504

CPC分类号： G03G5/142 ,  G03G5/14

摘要： An electrophotographic photoreceptor having, between an electroconductive substrate and a photosensitive layer, an interlayer which contains fine metal oxide particles and a binder resin and which, when an electric field of 106 V/m is applied thereto at 28° C. and 85% RH, has a volume resistivity of from 108 to 1013 &OHgr;·cm and, when an electric field of 106 V/m is applied thereto at 15° C. and 15% RH, has a volume resistivity which is up to 500 times the volume resistivity thereof as measured when an electric field of 106 V/m is applied thereto at 28° C. and 85% RH.

摘要翻译： 一种电子照相感光体，其在导电性基材和感光层之间具有含有金属氧化物微粒和粘合剂树脂的中间层，并且当在28℃下施加10 6 V / m的电场时， 85％RH，体积电阻率为10 8至10 13Ω·cm，当在15℃和15％RH下施加10 6 V / m的电场时，具有 当在28℃和85％RH下施加10 6 V / m的电场时，体积电阻率高达其体积电阻率的500倍。

公开(公告)号：US08655220B2

公开(公告)日：2014-02-18

申请号：US12247794

申请日：2008-10-08

申请人： Masahiro Iwasaki ,  Katsumi Nukada ,  Wataru Yamada ,  Kenta Ide ,  Hirofumi Nakamura ,  Mitsuhide Nakamura ,  Koji Bando ,  Kaori Iemula ,  Kazuya Hongo ,  Yasuhiro Nida

发明人： Masahiro Iwasaki ,  Katsumi Nukada ,  Wataru Yamada ,  Kenta Ide ,  Hirofumi Nakamura ,  Mitsuhide Nakamura ,  Koji Bando ,  Kaori Iemula ,  Kazuya Hongo ,  Yasuhiro Nida

IPC分类号： G03G21/18

CPC分类号： G03G5/076 ,  G03G5/0612 ,  G03G5/064 ,  G03G5/07 ,  G03G5/071 ,  G03G5/075 ,  G03G5/14769

摘要： An electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on a surface of the conductive substrate, an outermost layer of the photosensitive layer containing a crosslinked product formed from at least one charge transporting material having at least one substituent selected from the group consisting of —OH, —OCH3, —NH2, —SH, and —COOH and at least one selected from a guanamine compound or a melamine compound, the content of the at least one charge transporting material being at least about 90% by weight, and the content of the at least one selected from the guanamine compound or the melamine compound being from about 0.1% by weight to about 5% by weight.

摘要翻译： 一种电子照相感光体，包括导电基底和设置在导电基底表面上的感光层，感光层的最外层含有由至少一种电荷输送材料形成的交联产物，该电荷输送材料具有至少一个选自以下的取代基： -OH，-OCH 3，-NH 2，-SH和-COOH和选自胍胺化合物或三聚氰胺化合物中的至少一种，所述至少一种电荷输送材料的含量为至少约90重量％，并且 从胍胺化合物或三聚氰胺化合物中选出的至少一种的含量为约0.1重量％至约5重量％。

公开(公告)号：US20080107451A1

公开(公告)日：2008-05-08

申请号：US11798745

申请日：2007-05-16

申请人： Hidemi Nukada ,  Shigeto Hashiba ,  Takahiro Suzuki ,  Koji Bando ,  Makoto Takemoto

发明人： Hidemi Nukada ,  Shigeto Hashiba ,  Takahiro Suzuki ,  Koji Bando ,  Makoto Takemoto

IPC分类号： G03G15/02

CPC分类号： G03G15/0233

摘要： A charging roller including: a support; an elastic layer provided on the outer peripheral surface of the support, and having a ground-finished outer peripheral surface; and a surface layer formed to cover the outer peripheral surface of the elastic layer and that has a thickness of about 2 μm to about 10 μm from the outer peripheral surface of the elastic layer, and a proportion of water absorbed in the total of the elastic layer and the surface layer, after storage for 48 hours in an environment having a temperature of 10° C. and a humidity of 15% RH, and after storage for 48 hours in an environment having a temperature of 28° C. and a humidity of 85% RH, being about 2% to about 8% by weight, being about 2% to about 8% by weight.

摘要翻译： 一种充电辊，包括：支撑件; 弹性层，其设置在所述支撑体的外周面上，并且具有研磨后的外周面; 以及表面层，其形成为覆盖弹性层的外周表面，并且具有从弹性层的外周表面约2μm至约10μm的厚度，以及在弹性层的总共中吸收的水的比例 在温度为10℃，湿度为15％RH的环境中保存48小时后，在温度为28℃，湿度为28℃的环境中保存48小时后， 约85％RH，约2％至约8％重量，约2％至约8％重量。

公开(公告)号：US20060014091A1

公开(公告)日：2006-01-19

申请号：US11081650

申请日：2005-03-17

申请人： Hidemi Nukada ,  Hirofumi Nakamura ,  Yu Ql ,  Nan-Xing Hu ,  Ah-Mee Hor ,  Koji Bando

发明人： Hidemi Nukada ,  Hirofumi Nakamura ,  Yu Ql ,  Nan-Xing Hu ,  Ah-Mee Hor ,  Koji Bando

IPC分类号： G03G5/14

CPC分类号： G03G5/144 ,  G03G5/0696 ,  G03G5/142

摘要： An electrophotographic photoreceptor comprising: an electrophotographic photoreceptor having at least an undercoat layer and a photosensitive layer formed on a conductive substrate, wherein the undercoat layer contains metal oxide fine particles and an electron acceptor compound having a group reactive with the metal oxide fine particles. A process cartridge and an electrophotographic apparatus using the electrophotographic photoreceptor are also provided.

摘要翻译： 一种电子照相感光体，包括：电子照相感光体，其至少具有底涂层和形成在导电性基材上的感光层，其中，所述底涂层含有金属氧化物微粒和具有与所述金属氧化物微粒反应的基团的电子受体化合物。 还提供了使用电子照相感光体的处理盒和电子照相设备。

公开(公告)号：US07763406B2

公开(公告)日：2010-07-27

申请号：US11081650

申请日：2005-03-17

申请人： Hidemi Nukada ,  Hirofumi Nakamura ,  Yu Qi ,  Nan-Xing Hu ,  Ah-Mee Hor ,  Koji Bando

发明人： Hidemi Nukada ,  Hirofumi Nakamura ,  Yu Qi ,  Nan-Xing Hu ,  Ah-Mee Hor ,  Koji Bando

IPC分类号： G03G5/047 ,  G03G5/14

CPC分类号： G03G5/144 ,  G03G5/0696 ,  G03G5/142

摘要： An electrophotographic photoreceptor has at least an undercoat layer and a photosensitive layer formed on a conductive substrate, wherein the undercoat layer contains metal oxide fine particles and an electron acceptor compound having a group reactive with the metal oxide fine particles. A process cartridge and an electrophotographic apparatus use the electrophotographic photoreceptor.

摘要翻译： 电子照相感光体至少具有底涂层和形成在导电性基材上的感光层，其中底涂层含有金属氧化物微粒和具有与金属氧化物微粒反应的基团的电子受体化合物。 处理盒和电照相设备使用电子照相感光体。

公开(公告)号：US07580655B2

公开(公告)日：2009-08-25

申请号：US11798745

申请日：2007-05-16

申请人： Hidemi Nukada ,  Shigeto Hashiba ,  Takahiro Suzuki ,  Koji Bando ,  Makoto Takemoto

发明人： Hidemi Nukada ,  Shigeto Hashiba ,  Takahiro Suzuki ,  Koji Bando ,  Makoto Takemoto

IPC分类号： G03G15/02

CPC分类号： G03G15/0233

摘要： A charging roller including: a support; an elastic layer provided on the outer peripheral surface of the support, and having a ground-finished outer peripheral surface; and a surface layer formed to cover the outer peripheral surface of the elastic layer and that has a thickness of about 2 μm to about 10 μm from the outer peripheral surface of the elastic layer, and a proportion of water absorbed in the total of the elastic layer and the surface layer, after storage for 48 hours in an environment having a temperature of 10° C. and a humidity of 15% RH, and after storage for 48 hours in an environment having a temperature of 28° C. and a humidity of 85% RH, being about 2% to about 8% by weight, being about 2% to about 8% by weight.

摘要翻译： 一种充电辊，包括：支撑件; 弹性层，其设置在所述支撑体的外周面上，并且具有研磨后的外周面; 以及表面层，其形成为覆盖弹性层的外周表面，并且具有从弹性层的外周表面约2μm至约10μm的厚度，以及在弹性层的总共中吸收的水的比例 在温度为10℃，湿度为15％RH的环境中保存48小时后，在温度为28℃，湿度为28℃的环境中保存48小时后， 约85％RH，约2％至约8％重量，约2％至约8％重量。

公开(公告)号：US08268521B2

公开(公告)日：2012-09-18

申请号：US12466701

申请日：2009-05-15

申请人： Katsumi Nukada ,  Hirofumi Nakamura ,  Mitsuhide Nakamura ,  Koji Bando ,  Kenny-tuan T Dinh ,  Giuseppa Baranyi ,  Nan-Xing Hu ,  Michael Zak

发明人： Katsumi Nukada ,  Hirofumi Nakamura ,  Mitsuhide Nakamura ,  Koji Bando ,  Kenny-tuan T Dinh ,  Giuseppa Baranyi ,  Nan-Xing Hu ,  Michael Zak

IPC分类号： G03G5/00 ,  G03G15/00

CPC分类号： G03G5/071 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0668 ,  G03G5/075 ,  G03G5/076 ,  G03G5/142 ,  G03G5/144 ,  G03G2215/00957

摘要： According to an aspect of the invention, an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on a surface of the conductive substrate is provided. In the electrophotographic photoreceptor, an outermost layer of the photosensitive layer containing a crosslinked product formed from at least one charge transporting material having at least one substituent selected from the group consisting of —OH, —OCH3, —NH2, —SH, and —COOH, an acidic substance, and at least one compound selected from the group consisting of compounds represented by the following formula (A) and compounds represented by the following formula (B).

摘要翻译： 根据本发明的一个方面，提供一种电子照相感光体，其包括设置在导电性基板的表面上的导电性基板和感光层。 在电子照相感光体中，感光层的最外层包含由至少一种电荷输送材料形成的交联产物，该电荷输送材料具有至少一个选自-OH，-OCH 3，-NH 2，-SH和-COOH的取代基 ，酸性物质和选自由下式（A）表示的化合物和下式（B）表示的化合物中的至少一种化合物。