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：US08029955B2

公开(公告)日：2011-10-04

申请号：US12361642

申请日：2009-01-29

申请人： Eiichi Sakai ,  Yoshihiko Eto ,  Kimiyuki Itou ,  Akihiko Itami ,  Takeo Oshiba

发明人： Eiichi Sakai ,  Yoshihiko Eto ,  Kimiyuki Itou ,  Akihiko Itami ,  Takeo Oshiba

IPC分类号： G03G15/00

CPC分类号： G03G15/751 ,  G03G5/00 ,  G03G5/04 ,  G03G5/0525 ,  G03G5/0696 ,  G03G15/757

摘要： Provide is an electrophotographic photoreceptor exhibiting excellent evenness of halftone images together with fine line reproduction, and an image forming method thereof, as to a photoreceptor in which an oxytitanium phthalocyanine pigment having a maximum diffraction peak at a Bragg angle (2θ±0.2°) of 27.2° in CuKα X-ray diffraction. Also disclosed is an electrophotographic photoreceptor possessing a body having cylindrical conductive support provided thereon photosensitive layer containing oxytitanium phthalocyanine pigment having maximum diffraction peak at a Bragg angle (2θ±0.2°) of 27.2° in CuKα X-ray diffraction, and flanges jointed at both ends of the body, wherein at least one of flanges is fitted with driving shaft having drive hole having at least 3 sides, and a ratio B/A of cross-sectional area B of engaging part of rotation shaft to rotate the electrophotographic photoreceptor with respect to cross-sectional area A of the drive hole is 0.890-0.998.

摘要翻译： 提供一种电子照相感光体，其具有优异的半色调图像均匀性以及细线再现及其成像方法，其中具有在布拉格角（2θ;±0.2°）处具有最大衍射峰的氧钛酞菁颜料， 在CuKαX射线衍射中为27.2°。 还公开了一种电子照相感光体，其具有在CuKαX射线衍射中在其上设置有具有最大衍射峰（在布拉格角（2θ±0.2°））为27.2°的最大衍射峰的感光层的感光层，并且接合在 主体的两端，其中至少一个凸缘装配有具有至少3个侧面的驱动孔的驱动轴和旋转轴的接合部分的横截面积B的比率B / A，以使电子照相感光体与 相对于驱动孔的截面积A为0.890-0.998。

公开(公告)号：US20090245892A1

公开(公告)日：2009-10-01

申请号：US12410969

申请日：2009-03-25

申请人： Shinya OBARA ,  Akira OHIRA ,  Takeo OSHIBA

发明人： Shinya OBARA ,  Akira OHIRA ,  Takeo OSHIBA

IPC分类号： G03G15/08

CPC分类号： G03G15/0808 ,  G03G2215/0634 ,  G03G2215/0861 ,  G03G2215/0869

摘要： In the present invention, provided can be a developing roller through which neither fog nor contamination inside the apparatus is generated, and no insufficient image density is produced, even though printing a large number of paper sheets (5000 paper sheets, for example). Also disclosed is a developing roller possessing a conductive shaft and a coating layer provided on an outer circumference of the conductive shaft, wherein the coating layer possesses a resin and a surface roughness particle, and the coating layer surface has a surface roughness Ra of 0.5-2.5 μm and a Young's modulus Y of 1-200 MPa.

摘要翻译： 在本发明中，即使印刷大量的纸张（例如5000张纸），也可以是不产生灰尘和污染物的显影辊，并且不会产生不足的图像浓度。 还公开了一种具有导电轴和设置在导电轴的外周上的涂层的显影辊，其中涂层具有树脂和表面粗糙度颗粒，并且涂层表面的表面粗糙度Ra为0.5〜 2.5μm，杨氏模量Y为1-200MPa。

公开(公告)号：US20080220363A1

公开(公告)日：2008-09-11

申请号：US12041762

申请日：2008-03-04

申请人： Satoshi UCHINO ,  Masahiro ANNO ,  Takeo OSHIBA ,  Okushi OKUYAMA ,  Shinya OBARA ,  Ryuichi HIRAMOTO ,  So MATSUYA

发明人： Satoshi UCHINO ,  Masahiro ANNO ,  Takeo OSHIBA ,  Okushi OKUYAMA ,  Shinya OBARA ,  Ryuichi HIRAMOTO ,  So MATSUYA

IPC分类号： G03G13/16 ,  G03G15/08

CPC分类号： G03G15/0818

摘要： A developing roller for electrophotographic image forming apparatus is disclosed. The developing roller has a shaft and a resin layer, and the resin layer comprises a binder resin, a resin particle having a particle diameter of 5 μm to 30 μm and a content of from 10% to 50% by weight with respect to the resin layer, and inorganic oxide particles having a number based average primary particle diameter of 5 nm to 100 nm and a content of 1% to 40% by weight with respect to the resin layer. An image forming method employing the developer roller is also disclosed.

摘要翻译： 公开了一种用于电子照相成像设备的显影辊。 显影辊具有轴和树脂层，树脂层包含粘合剂树脂，相对于树脂的粒径为5〜30μm的树脂粒子和10〜50重量％的树脂粒子 层和相对于树脂层的数均基准粒径为5nm〜100nm，含量为1〜40重量％的无机氧化物粒子。 还公开了一种采用显影辊的成像方法。

公开(公告)号：US20080070147A1

公开(公告)日：2008-03-20

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 ,  B05D3/02 ,  G03G13/20

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：US20070147907A1

公开(公告)日：2007-06-28

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） 围绕心轴的外圆周是1.0×10 -7 -1.0×10 3Ω·cm。

公开(公告)号：US06265122B1

公开(公告)日：2001-07-24

申请号：US09506512

申请日：2000-02-17

申请人： Akihiko Itami ,  Tomoo Sakimura ,  Takeo Oshiba ,  Yohko Kitahara ,  Masahiko Kurachi ,  Kazuhisa Shida

发明人： Akihiko Itami ,  Tomoo Sakimura ,  Takeo Oshiba ,  Yohko Kitahara ,  Masahiko Kurachi ,  Kazuhisa Shida

IPC分类号： G03G1502

CPC分类号： G03G5/0696 ,  G03G5/0659 ,  G03G5/14773

摘要： In an electrophotographic photoreceptor which comprises an electrically conductive support having thereon a multilayer composed of a photosensitive layer and a protective surface layer in said order, an electrophotographic photoreceptor characterized in that said protective surface layer comprised of a layer comprising structural units having charge transportability, as well as siloxane based resins having a cross linking structure, and said photosensitive layer comprises titanyl phthalocyanine having a maximum peak of Bragg angle (2&thgr;±0.2)° at 27.2° with respect to Cu-K&agr; ray.

摘要翻译： 在电子照相感光体中，电子照相感光体包含导电性支持体，其上具有由感光层和保护表面层构成的多层，电子照相感光体，其特征在于，所述保护性表层由包含具有电荷传输性的结构单元的层构成， 以及具有交联结构的硅氧烷基树脂，并且所述感光层包含相对于Cu-Kalpha射线具有27.2°的布拉格角（2θ±0.2°）最大峰值的钛酞菁。

公开(公告)号：US5721085A

公开(公告)日：1998-02-24

申请号：US717625

申请日：1996-09-23

申请人： Takeo Oshiba ,  Akihiko Itami ,  Katsumi Matsuura

发明人： Takeo Oshiba ,  Akihiko Itami ,  Katsumi Matsuura

IPC分类号： G03G9/08 ,  G03G5/05 ,  G03G21/00 ,  G03G21/10 ,  G03G13/095

CPC分类号： G03G21/0029

摘要： Disclosed is an image forming method for an electrophotographic photoreceptor, comprising steps of: (1) charging said photoreceptor which is moved in a predetermined direction, (2) imagewise exposing on said charged photoreceptor, (3) developing said imagewise exposed photoreceptor with a developer to form a toner image, (4) transferring said toner image onto an image receiving material, and (5) cleaning a residual toner on said photoreceptor with a cleaning blade after transferring said toner image, wherein said cleaning blade has a fixed end portion and a free end portion, said cleaning step comprising: urging said free end portion in a direction counter to said predetermined direction of the photoreceptor, wherein said photoreceptor has a static friction coefficient of not more than 1.0 to said cleaning blade so that said free end portion of said cleaning blade is oscillated in an amplitude of 10 .mu.m to 200 .mu.m with the movement of the photoreceptor.

摘要翻译： 公开了一种电子照相感光体的图像形成方法，包括以下步骤：（1）对沿着预定方向移动的感光体进行充电，（2）在所述带电感光体上成像曝光，（3）用显影剂显影所述成像曝光的感光体 以形成调色剂图像，（4）将所述调色剂图像转印到图像接收材料上，以及（5）在转印所述调色剂图像之后用清洁刮刀清洁所述感光体上的残留调色剂，其中所述清洁刮板具有固定的端部和 所述清洁步骤包括：沿与所述感光体的所述预定方向相反的方向推动所述自由端部分，其中所述感光体对所述清洁刮板具有不大于1.0的静摩擦系数，使得所述自由端部分 的所述清洁刀片随着感光体的移动以10微米到200微米的幅度振荡。

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。