公开(公告)号：US5403691A

公开(公告)日：1995-04-04

申请号：US50512

申请日：1993-04-20

申请人： Takeo Oshiba ,  Yoshihiko Etoh ,  Yoshiaki Takei

发明人： Takeo Oshiba ,  Yoshihiko Etoh ,  Yoshiaki Takei

IPC分类号： G03G5/00 ,  G03G5/05 ,  G03G5/06 ,  G03G5/14

CPC分类号： G03G5/0679 ,  G03G5/0614

摘要： Disclosed is a method for preparing an electrophotographic photoreceptor comprising the steps of:(a) preparing a dispersion solution comprising a carrier generation material, a binder resin and an organic solvent; and(b) coating said dispersion solution on a conductive support; wherein said carrier generation material is a fluorenone type bisazo pigment represented by Formula F.sub.1, and main component of said organic solvent is selected from the group consisting of a ketone type solvent, an ester type solvent and an alcohol type each having a branched alkyl group: ##STR1## wherein X.sub.1, X.sub.2, p, q, and A, are defined as in the Specification.

摘要翻译： 公开了一种制备电子照相感光体的方法，包括以下步骤：（a）制备包含载体产生材料，粘合剂树脂和有机溶剂的分散溶液; 和（b）将所述分散液涂覆在导电载体上; 其中所述载体产生材料是由式F1表示的芴酮型双偶氮颜料，所述有机溶剂的主要组分选自酮类溶剂，酯型溶剂和各自具有支链烷基的醇类： 其中X1，X2，p，q和A如本说明书中所定义。

公开(公告)号：US07505720B2

公开(公告)日：2009-03-17

申请号：US11585399

申请日：2006-10-24

申请人： Kouichi Sugama ,  Nobuaki Kobayashi ,  Takeo Oshiba ,  Okushi Okuyama ,  Satoshi Uchino

发明人： Kouichi Sugama ,  Nobuaki Kobayashi ,  Takeo Oshiba ,  Okushi Okuyama ,  Satoshi Uchino

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G2215/0617

摘要： Provided are a developing roller for non-magnetic single component development and a developing method employing the developing, by which toner can be stably conveyed in any external environment, and the stable toner conveyance and charging amount can also be acquired. Also disclosed is a developing roller possessing a spindle and provided around an outer circumference of the spindle, at least an elastic layer (innermost layer), a resistance adjusting layer (intermediate layer) formed on the elastic layer and a surface layer (outermost layer) formed on the resistance adjusting layer, wherein the intermediate layer possesses a layer containing carbon black in a resin, a content of a polycyclic aromatic hydrocarbon in the carbon black is at most 10 ppm, and a volume resistance (Rv) of all the layers provided around the outer circumference of the spindle is 1.0×107−1.0×1013 Ω·cm.

摘要翻译： 提供了一种用于非磁性单组分显影的显影辊和使用显影剂的显影方法，通过该显影辊可以在任何外部环境中稳定地输送调色剂，并且还可以获得稳定的调色剂输送和充电量。 还公开了一种具有心轴的显影辊，至少在弹性层上形成弹性层（最内层），电阻调节层（中间层）和表面层（最外层），围绕心轴外周设置， 形成在电阻调节层上，其中中间层在树脂中具有含有炭黑的层，碳黑中的多环芳烃的含量为至多10ppm，并且提供了所有层的体积电阻（Rv） 围绕心轴的外圆周为1.0×107-1.0×1013Ω·cm。

公开(公告)号：US06692882B2

公开(公告)日：2004-02-17

申请号：US10006816

申请日：2001-12-05

申请人： Takeo Oshiba ,  Fumitaka Mochizuki ,  Kazuhisa Shida

发明人： Takeo Oshiba ,  Fumitaka Mochizuki ,  Kazuhisa Shida

IPC分类号： G03G2100

CPC分类号： G03G9/0827 ,  G03G9/0819 ,  G03G13/08 ,  G03G21/0029

摘要： A method of forming a toner image is disclosed. The photoreceptor is installed so that the center axis of the cylinder is to be almost horizontal, front edge of the cleaning blade is pressed against surface of the photoreceptor at the top, ratio of width of the photosensitive layer of the photoreceptor to length of the cylindrical electroconductive substrate is 80/100 to 99/100, and a number ratio of toner particles having a shape coefficient of 1.2 to 1.6 is at least 65 percent in the toner particles.

公开(公告)号：US5434027A

公开(公告)日：1995-07-18

申请号：US170855

申请日：1993-12-21

申请人： Takeo Oshiba ,  Yoshihiko Etoh ,  Asao Matsushima ,  Yoshiaki Takei

发明人： Takeo Oshiba ,  Yoshihiko Etoh ,  Asao Matsushima ,  Yoshiaki Takei

IPC分类号： G03G5/06

CPC分类号： G03G5/0657 ,  G03G5/0659

摘要： The present invention is directed to a photoreceptor having an electroconductive support, a barrier layer, a charge generation layer and a charge transport layer, all formed on the support in this order, wherein the barrier layer consists of an alcohol-soluble copolymerized polyamide resin, the charge generation layer contains a compound represented by formula I or II, and the charge transport layer contains a polycarbonate resin having a molecular weight of not less than 100,000, ##STR1## wherein Z represents a groups of atoms necessary to form a substituted or unsubstituted divalent aromatic ring.

摘要翻译： 本发明涉及一种具有导电性支持体，阻挡层，电荷产生层和电荷输送层的感光体，其全部以该顺序形成在载体上，其中阻隔层由醇溶性共聚聚酰胺树脂， 电荷产生层含有由式I或II表示的化合物，电荷输送层含有分子量不小于100,000的聚碳酸酯树脂，形成取代或未取代的二价芳环所需的原子。

公开(公告)号：US07672626B2

公开(公告)日：2010-03-02

申请号：US11678314

申请日：2007-02-23

申请人： Satoshi Uchino ,  Nobuaki Kobayashi ,  Takeo Oshiba ,  Okushi Okuyama ,  Kouichi Sugama

发明人： Satoshi Uchino ,  Nobuaki Kobayashi ,  Takeo Oshiba ,  Okushi Okuyama ,  Kouichi Sugama

IPC分类号： G03G15/08

CPC分类号： G03G15/0233

摘要： An objective is to provide a developing roller in which increase of residual potential is inhibited during repetitive operation without deteriorating interlayer adhesion, and prepared is a layer immediately below the surface capable of preventing fog caused by toner scattering, accompanied with a surface layer capable of preventing stains formed from foreign matters adhered to the surface, as well as preventing image unevenness since toner electrification is even under the presence of appropriate elasticity, and also to provide a image forming method employing the developing roller. Disclosed is a developing roller possessing an elastic layer made of silicone rubber provided around a conductive shaft, and a plurality of resin layers further provided on the elastic layer, wherein an outermost surface layer among the resin layers comprises silicone copolymerization polyurethane; and a layer immediately below the surface layer comprises a polyurethane resin-silica hybrid.

摘要翻译： 目的是提供一种显影辊，其中在重复操作期间残留电位的增加被抑制而不会降低层间粘合性，并且制备为能够防止由调色剂飞散引起的雾的表面下方的层，伴随着能够防止 由于附着在表面上的异物形成的污渍以及由于调色剂带电而在存在适当弹性的情况下均匀地防止图像不均匀，还提供了使用该显影辊的图像形成方法。 公开了一种显影辊，其具有设置在导电轴周围的由硅橡胶制成的弹性层，以及还设置在弹性层上的多个树脂层，其中树脂层中的最外表面层包括硅氧烷共聚聚氨酯; 并且表面层正下方的层包含聚氨酯树脂 - 二氧化硅杂化物。

公开(公告)号：US5589314A

公开(公告)日：1996-12-31

申请号：US490781

申请日：1995-06-15

申请人： Yoshihiko Etoh ,  Takeo Oshiba ,  Asao Matsushima ,  Hirofumi Hayata ,  Tomoo Sakimura ,  Tomoko Suzuki ,  Akira Kinoshita

发明人： Yoshihiko Etoh ,  Takeo Oshiba ,  Asao Matsushima ,  Hirofumi Hayata ,  Tomoo Sakimura ,  Tomoko Suzuki ,  Akira Kinoshita

IPC分类号： G03G5/05 ,  G03G5/06 ,  G03G13/04 ,  G03G13/22 ,  G03G15/04 ,  G03G15/043

CPC分类号： G03G13/22 ,  G03G5/0517 ,  G03G5/0521 ,  G03G5/0614 ,  G03G5/0659 ,  Y10S430/103

摘要： Disclosed is an image forming method using an electrophotographic photoreceptor comprising the steps of:(1) charging the electrophotographic photoreceptor, wherein said electrophotographic photoreceptor comprising a conductive support and provided thereon, a carrier generation layer and a carrier transportation layer, said carrier generation layer comprising a carrier generation material represented by formula 1 or 2 and having X-ray diffraction pattern having peaks at 6.3.degree..+-.0.2.degree., 12.4.degree..+-.0.2.degree., 25.3.degree..+-.0.2.degree. and 27.1.degree..+-.0.2.degree. in Bragg angle (2.theta.) when using Cu-K.alpha. ray as a X-ray radiation source in which said peak of 12.4.degree..+-.0.2.degree. has a maximum intensity and has a half width of 0.65.degree. or more; no peak being present at 11.5.degree..+-.0.2.degree.,(2) imagewise exposing the charged photoreceptor for an exposure time of 1.times.10.sup.-4 to 3.times.10.sup.-2 seconds,(3) developing the imagewise exposed photoreceptor to form an image, and(4) transferring the formed image to an image receiving material: ##STR1##

摘要翻译： 公开了一种使用电子照相感光体的图像形成方法，包括以下步骤：（1）对电子照相感光体进行充电，其中所述电子照相感光体包括导电性支持体，其上设置有载体产生层和载流子输送层，所述载体生成层包含 由式1或2表示的载体产生材料，具有在6.3°±0.2°，12.4°±0.2°，25.3°±0.2°和27.1°±0.2°的峰值的X射线衍射图 当使用Cu-Kα射线作为X射线辐射源时，Bragg角（2θ）为DEG，其中所述12.4°±0.2°的峰具有最大强度并且具有0.65°以上的半宽度; 在11.5°±0.2°没有峰存在，（2）使带电感光体成像曝光1×10 -4至3×10 -2秒的曝光时间，（3）显影图像曝光的感光体以形成图像，并且 4）将形成的图像传送到图像接收材料：

公开(公告)号：US5270140A

公开(公告)日：1993-12-14

申请号：US848107

申请日：1992-03-09

申请人： Naoto Abew ,  Naohiro Hirose ,  Hirofumi Hayata ,  Syozo Mitsui ,  Shinichi Suzuki ,  Osamu Sasaki ,  Yoshio Takizawa ,  Takeo Oshiba

发明人： Naoto Abew ,  Naohiro Hirose ,  Hirofumi Hayata ,  Syozo Mitsui ,  Shinichi Suzuki ,  Osamu Sasaki ,  Yoshio Takizawa ,  Takeo Oshiba

IPC分类号： C07C211/54 ,  G03G5/06 ,  G03G5/04

CPC分类号： G03G5/0672 ,  G03G5/0614

摘要： An electrophotographic photoreceptors containing a bisstyryl compound represented by the following formula I is disclosed. ##STR1## R.sup.0 and/or R.sup.00 represent methyl group, and the rest of Rs represent hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and Ar.sup.1 and Ar.sup.2 represent each an aromatic group.

摘要翻译： 公开了含有由下式I表示的双苯乙烯基化合物的电子照相感光体。 式I R 0和/或R 00表示甲基，其余的R 5表示氢原子或碳原子数1〜4的烷基。 Ar 1和Ar 2分别表示芳香族基团。

公开(公告)号：US07981586B2

公开(公告)日：2011-07-19

申请号：US11850802

申请日：2007-09-06

申请人： Satoshi Uchino ,  Masahiro Anno ,  Takeo Oshiba ,  Okushi Okuyama ,  Shinya Obara

发明人： Satoshi Uchino ,  Masahiro Anno ,  Takeo Oshiba ,  Okushi Okuyama ,  Shinya Obara

IPC分类号： G03G9/06

CPC分类号： G03G15/0818

摘要： An electrophotographic image forming method is disclosed. The method includes steps of conveying a developer comprising a toner to a developing zone by a developing roller, and developing an electrostatic latent image formed on an electrostatic latent image carrying member by the developer, and the developing roller has an electroconductive shaft and a resin layer provided around the shaft, the resin layer comprises a surface layer containing silicone copolymer resin as the principal component and a layer containing resin-silica hybrid composite as a principal component provided directly under the surface layer.

摘要翻译： 公开了电子照相图像形成方法。 该方法包括以下步骤：通过显影辊将包含调色剂的显影剂输送到显影区域，以及通过显影剂将形成在静电潜像载体上的静电潜像显影，并且显影辊具有导电轴和树脂层 设置在轴周围的树脂层包括含有硅酮共聚物树脂作为主要成分的表面层和直接位于表面层下面的含有树脂 - 二氧化硅混合复合材料作为主要成分的层。

公开(公告)号：US07885585B2

公开(公告)日：2011-02-08

申请号：US11681229

申请日：2007-03-02

申请人： Satoshi Uchino ,  Nobuaki Kobayashi ,  Takeo Oshiba ,  Okushi Okuyama ,  Kouichi Sugama

发明人： Satoshi Uchino ,  Nobuaki Kobayashi ,  Takeo Oshiba ,  Okushi Okuyama ,  Kouichi Sugama

IPC分类号： G03G15/08

CPC分类号： G03G15/0818

摘要： An objective is to provide a developing roller in which increase of residual potential is inhibited during repetitive operation without deteriorating adhesion to an elastic layer, scattering and leakage of toner are prevented, appropriate elasticity is exhibited and a resin layer capable of preventing uneven charging of toner and image unevenness is prepared, and also to provide a image forming method employing the developing roller. Disclosed is a developing roller possessing an elastic layer made of silicone rubber provided around a conductive shaft, and a resin layer further provided on the elastic layer, wherein the resin layer contains polyurethane resin-silica hybrid as a principal component.

摘要翻译： 目的是提供一种显影辊，其中在重复操作期间残留电位的增加被抑制，而不会降低与弹性层的粘附性，防止了调色剂的散射和泄漏，表现出适当的弹性，以及能够防止调色剂不均匀充电的树脂层 并且制备图像不均匀性，并且还提供使用显影辊的图像形成方法。 公开了一种显影辊，其具有设置在导电轴周围的由硅橡胶制成的弹性层，以及还设置在弹性层上的树脂层，其中树脂层含有聚氨酯树脂 - 二氧化硅杂化物作为主要成分。

公开(公告)号：US07220526B2

公开(公告)日：2007-05-22

申请号：US10802096

申请日：2004-03-15

申请人： Takeo Oshiba ,  Masao Asano ,  Hiroshi Yamazaki

发明人： Takeo Oshiba ,  Masao Asano ,  Hiroshi Yamazaki

IPC分类号： G03G15/08

CPC分类号： G03G15/751 ,  G03G5/005 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/08711 ,  G03G15/08

摘要： An image forming method which can provides excellent cleaning property, no occurrence of unusual noise or curling of a blade, and a high quality image. The method includes forming a latent image on a cylindrical electrophotographic photoconductor including a mass additive therein; and developing the latent image with a developer comprising a toner, wherein the toner comprises a ratio (Dv50/Dp50) of a 50% volume particle size (Dv50) to a 50% number particle size (Dp50) of 1.0 to 1.15, a ratio (Dv75/Dp75) of a cumulative 75% volume particle size (Dv75) from a larger volume particle size to a cumulative 75% number particle size (Dp75) from a larger number particle size of 1.0 to 1.20, and the number of toner particles having a particle size of 0.7×(Dp50) or less in an amount of not greater than 10 number %.

摘要翻译： 可以提供优异的清洁性能，不发生异常噪音或者叶片卷曲的图像形成方法以及高质量的图像。 该方法包括在其中包括质量添加剂的圆柱形电子照相感光体上形成潜像; 并用包含调色剂的显影剂显影潜像，其中调色剂包含50体积粒径（Dv50）与50％数量粒径（Dp50）的比率（Dv50 / Dp50）为1.0-1.15，比率 （Dv75 / Dp75），其具有从较大体积粒径到累积75％数量粒径（Dp75）的累积75％体积粒度（Dv75），其数量较大的粒径为1.0至1.20，调色剂颗粒数 具有不大于10数量％的量的0.7×（Dp50）以下的粒径。