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    Charging device and image forming apparatus
    2.
    发明授权
    Charging device and image forming apparatus 有权
    充电装置及成像装置

    公开(公告)号：US07496318B2

    公开(公告)日：2009-02-24

    申请号：US11510570

    申请日：2006-08-28

    申请人： Hiroyuki Miura ,  Minoru Rokutan ,  Takanori Suga ,  Yukiko Oda

    发明人： Hiroyuki Miura ,  Minoru Rokutan ,  Takanori Suga ,  Yukiko Oda

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0233

    摘要： The invention provides a charging device including a charging roll and a voltage application unit which is capable of applying to the charging roll a voltage in which an alternating current voltage is superimposed on a direct current voltage, the alternating current (Iac) which flows through the charging roll satisfying the following Equation (1), the charging roll satisfying the following conditions (a) to (c), and the charging roll contacting an image supporter to charge the image supporter: Iac/I(inflection)≦1.2  Equation (1) (in the Equation (1), I (inflection) represents the flexion point of lac) (a) the fluctuation of the outside diameter is 0.1 mm or less (b) resistance (common logarithm) is 9.0 log·Ω or less (c) resistance variation (common logarithm) is 0.5 log·Ω or less.

    摘要翻译： 本发明提供了一种充电装置，包括充电辊和电压施加单元，其能够向充电辊施加电流，其中交流电流叠加在直流电压上，交流电流（Iac）流过 充电辊满足以下等式（1），充电辊满足以下条件（a）至（c），充电辊与图像支持者接触以对图像支持者充电：<？in-line-formula description =“In 线性公式“end =”lead“？> Iac / I（拐点）<= 1.2公式（1）<？in-line-formula description =”In-line Formulas“end =”tail“？> （1），I（拐点）表示lac的屈曲点）（a）外径的波动为0.1mm以下（b）电阻（通常对数）为9.0log.Omega以下（c）电阻变化（ 常用对数）为0.5log.Omega以下。

    Charging device and image forming apparatus
    3.
    发明申请
    Charging device and image forming apparatus 有权
    充电装置及成像装置

    公开(公告)号：US20070189790A1

    公开(公告)日：2007-08-16

    申请号：US11510570

    申请日：2006-08-28

    申请人： Hiroyuki Miura ,  Minoru Rokutan ,  Takanori Suga ,  Yukiko Oda

    发明人： Hiroyuki Miura ,  Minoru Rokutan ,  Takanori Suga ,  Yukiko Oda

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0233

    摘要： The invention provides a charging device including a charging roll and a voltage application unit which is capable of applying to the charging roll a voltage in which an alternating current voltage is superimposed on a direct current voltage, the alternating current (Iac) which flows through the charging roll satisfying the following Equation (1), the charging roll satisfying the following conditions (a) to (c), and the charging roll contacting an image supporter to charge the image supporter: Iac/I(inflection)≦1.2   Equation (1) (in the Equation (1), I(inflection) represents the flexion point of lac)(a) the fluctuation of the outside diameter is 0.1 mm or less(b) resistance (common logarithm) is 9.0 log·Ω or less(c) resistance variation (common logarithm) is 0.5 log·Ω or less.

    摘要翻译： 本发明提供了一种充电装置，包括充电辊和电压施加单元，其能够向充电辊施加电流，其中交流电流叠加在直流电压上，交流电流（Iac）流过 充电辊满足以下等式（1），充电辊满足以下条件（a）至（c），充电辊与图像支持者接触以对图像支持者充电：<？in-line-formula description =“In 线性公式“end =”lead“？> Iac / I（拐点）<= 1.2公式（1）<？in-line-formula description =”In-line Formulas“end =”tail“？> （1），I（拐点）表示lac的屈曲点）（a）外径的波动为0.1mm以下（b）电阻（通常对数）为9.0log.Omega以下（c）电阻变化（ 常用对数）为0.5log.Omega以下。

    Electrically-conductive member and image forming apparatus using the same
    7.
    发明授权
    Electrically-conductive member and image forming apparatus using the same 失效
    导电构件和使用其的成像装置

    公开(公告)号：US6004669A

    公开(公告)日：1999-12-21

    申请号：US996059

    申请日：1997-12-22

    申请人： Minoru Rokutan ,  Michiaki Yasuno ,  Naoki Ohnishi

    发明人： Minoru Rokutan ,  Michiaki Yasuno ,  Naoki Ohnishi

    IPC分类号： B32B15/06 ,  G03G15/02 ,  B32B27/40 ,  G03G15/16

    CPC分类号： B32B15/06 ,  G03G15/0233 ,  Y10T428/1393 ,  Y10T428/264 ,  Y10T428/265 ,  Y10T428/31554 ,  Y10T428/31569 ,  Y10T428/31576 ,  Y10T428/31583 ,  Y10T428/31587 ,  Y10T428/31605

    摘要： The present invention provides an electrostatic charging member excellent in dispersibility of electrically-conducting agent and uniformity in resistance which causes no contamination of the material to be charged for a prolonged period of time. The present invention relates to an electrostatic charging member which electrostatically charging uniformly the surface of a material to be charged such as photoreceptor and dielectric material while pressing the material. An electrostatic charging member 1 has a two-layer structure comprising an electrically-conductive elastic material layer 1b formed on an electrically-conductive substrate 1a, and a resistance-controlling layer 1c covering the elastic material layer 1b. The resistance-controlling layer 1c comprises an electrically-conducting agent such as carbon black having a pH value of not more than 6 dispersed in an amine-modified polyurethane resin as a base polymer. The amine-modified polyurethane resin preferably comprises an amine component incorporated therein in an amount of from 0.02 to 1.0 mmol per g of the resin. The thickness of the resistance-controlling layer 1c preferably falls within the range of from 1 to 50 .mu.m.

    摘要翻译： 本发明提供一种导电剂分散性优异且电阻均匀性优异的静电充电部件，其长时间不会引起被充电材料的污染。 本发明涉及一种静电充电部件，在按压材料的同时，对感光体和电介质材料等被充电材料的表面进行均匀静电充电。 静电充电构件1具有包括形成在导电基板1a上的导电弹性材料层1b和覆盖弹性材料层1b的电阻控制层1c的双层结构。 电阻控制层1c包括分散在作为基础聚合物的胺改性聚氨酯树脂中的pH值不大于6的碳黑等导电剂。 胺改性聚氨酯树脂优选包含其中掺入的胺组分，其量为每克树脂0.02至1.0毫摩尔。 电阻控制层1c的厚度优选在1〜50μm的范围内。

    Charging member
    8.
    发明授权
    Charging member 失效
    充电会员

    公开(公告)号：US5851657A

    公开(公告)日：1998-12-22

    申请号：US792223

    申请日：1997-01-31

    申请人： Michiaki Yasuno ,  Minoru Rokutan

    发明人： Michiaki Yasuno ,  Minoru Rokutan

    IPC分类号： G03G15/02 ,  B32B25/20 ,  C08L83/05 ,  C08L83/07 ,  F16C13/00

    CPC分类号： B32B25/20 ,  Y10T428/1393 ,  Y10T428/26

    摘要： A charging member is disclosed, which charges an electrifiable member, e.g., a photoreceptor, when a voltage is applied thereto while the charging member is kept being pressed against the electrifiable member. This charging member 1 comprises an electroconductive substrate 1a and, fixed thereto, an electroconductive elastomer layer 1b comprising at least a crosslinked silicone rubber, in which the content of uncrosslinked silicone polymer components having a number-average molecular weight of 10,000 or higher is not higher than 1% by weight. The crosslinked silicone rubber is preferably a reaction product obtained by reacting a liquid polymethylsiloxane containing at least two vinyl group substituents and having a viscosity of 3,000 cP or lower with a polyorganohydrogensiloxane as a crosslinking agent in the presence of a platinum catalyst. The charging member need not have an antifouling layer for inhibiting the migration of low-polymerization-degree components to an electrifiable member. It is free from the possibility of causing image defects and has excellent environmental stability of electrical resistance and excellent flexibility.

    摘要翻译： 公开了一种充电构件，当充电构件被保持压靠在可充电构件上时，当施加电压时向充电构件（例如感光体）充电。 该充电构件1包括导电基板1a，并固定在其上，至少包含交联硅橡胶的导电弹性体层1b，其中数均分子量为10,000以上的未交联的有机硅聚合物组分的含量不高 超过1重量％。 交联硅橡胶优选为在铂催化剂存在下使含有至少两个乙烯基取代基的液体聚甲基硅氧烷与粘度为3,000cP以下的聚有机氢硅氧烷作为交联剂反应而得的反应产物。 充电部件不需要具有用于抑制低聚合度成分向可充电部件的迁移的防污层。 没有造成图像缺陷的可能性，并且具有优异的电阻环境稳定性和优异的柔韧性。

    Charging member, process unit cartridge, and image forming apparatus
    9.
    发明授权
    Charging member, process unit cartridge, and image forming apparatus 有权
    充电构件，处理单元盒和成像装置

    公开(公告)号：US08452212B2

    公开(公告)日：2013-05-28

    申请号：US13015886

    申请日：2011-01-28

    申请人： Minoru Rokutan ,  Shogo Tomari

    发明人： Minoru Rokutan ,  Shogo Tomari

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0233 ,  G03G2215/0132

    摘要： A charging member includes a conductive metal shaft and a conductive elastic layer. The conductive elastic layer comprises a rubber material containing 50% to 100% by weight of epichlorohydrin rubber containing 56 mol % or more of an ethylene oxide and a calcium oxide having an average particle size D50 of 18 μm or smaller.

    摘要翻译： 充电构件包括导电金属轴和导电弹性层。 导电弹性层包括含有50重量％至100重量％的含有56摩尔％以上环氧乙烷和平均粒径D 50为18mum以下的氧化钙的表氯醇橡胶的橡胶材料。