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    Method for determining termination time of the step of dispersing a coating composition for photosensitive layer of electrophotographic photoreceptor and electrophotographic photoreceptor prepared using the dispersion
    1.
    发明授权
    Method for determining termination time of the step of dispersing a coating composition for photosensitive layer of electrophotographic photoreceptor and electrophotographic photoreceptor prepared using the dispersion 失效
    用于分散使用该分散体制备的电子照相感光体和电子照相感光体的感光层的涂料组合物分散步骤的终止时间的方法

    公开(公告)号：US5403688A

    公开(公告)日：1995-04-04

    申请号：US646312

    申请日：1991-01-28

    申请人： Seiji Ashiya ,  Taketoshi Hoshizaki ,  Ryosaku Igarashi ,  Koji Bando ,  Masanori Murase ,  Takahiro Suzuki ,  Masahiko Hodumi ,  Sadao Okano

    发明人： Seiji Ashiya ,  Taketoshi Hoshizaki ,  Ryosaku Igarashi ,  Koji Bando ,  Masanori Murase ,  Takahiro Suzuki ,  Masahiko Hodumi ,  Sadao Okano

    IPC分类号： G03G5/00 ,  G03G5/05 ,  G03G15/08

    CPC分类号： G03G5/0525

    摘要： A method for determining a termination time of the step of dispersing a coating composition for a photosensitive layer, containing a binder resin, a powdery charge generating material and a solvent, is disclosed, which comprises (i) providing coating (I) on a substrate by coating the coating composition, following by drying, (ii) providing coating (II) on a substrate by dispersing the coating composition using a dispersion medium to fine the powdery charge generating material, followed by drying, (iii) measuring absorbances of coating (I) at two wavelengths within a short wavelength region and a long wavelength region, respectively, of the spectral absorption wavelength of the charge generating material, (iv) measuring absorbances of coating (II) at the two wavelengthes within the short wavelength region and the long wavelength region, respectively, and (v) calculating spectral absorbance ratios of coatings (I) and (II), respectively, from the following equation: ##EQU1## wherein the dispersing of the coating composition is terminated when the ratio of the spectral absorbance ratio of coating (II) to that of coating (I) exceed a predetermined value.

    摘要翻译： 公开了一种用于确定分散含有粘合剂树脂，粉末电荷产生材料和溶剂的感光层用涂料组合物的步骤的终止时间的方法，其包括（i）在基材上提供涂层（I） 通过涂覆涂料组合物，然后通过干燥，（ii）通过使用分散介质分散涂料组合物在基材上提供涂层（II），以使粉末电荷产生材料细化，然后干燥，（iii）测量涂层的吸光度（ I）分别在电荷产生材料的光谱吸收波长的短波长区域和长波长区域内的两个波长处，（iv）测量短波长区域内的两个波长处的涂层（II）的吸光度，以及 分别从长波长区域和（v）分别根据以下等式计算涂层（I）和（II）的光谱吸光度比：其中，二 当涂层（II）的光谱吸收比与涂层（I）的光谱吸收比之比超过预定值时，终止涂料组合物的喷涂。

    Electrophotographic photoreceptor
    2.
    发明授权
    Electrophotographic photoreceptor 失效
    电子照相感光体

    公开(公告)号：US5324606A

    公开(公告)日：1994-06-28

    申请号：US977633

    申请日：1992-11-17

    申请人： Masahiko Hodumi ,  Masanori Murase ,  Sadao Okano ,  Koji Bando ,  Takahiro Suzuki ,  Seiji Ashiya

    发明人： Masahiko Hodumi ,  Masanori Murase ,  Sadao Okano ,  Koji Bando ,  Takahiro Suzuki ,  Seiji Ashiya

    IPC分类号： G03G5/047 ,  G03G5/06

    CPC分类号： G03G5/047 ,  G03G5/0614

    摘要： An electrophotographic photoreceptor comprising a conductive substrate having thereon a photosensitive layer as the uppermost layer, in which the photosensitive layer contains two charge transporting materials different in ionization potential, a charge transporting material having a higher ionization potential is present in the amount equimolar to or in an amount less than the equimolar amount to the other charge transporting material having a lower ionization potential. A laminate type electrophotographic photoreceptor comprising a conductive substrate having thereon a charge generating layer and a charge transporting layer, in which the charge generating layer comprises a binder resin and a charge generating material dispersed therein, the charge transporting layer comprises a binder resin and at least two charge transporting materials including a first charge transporting material and a second charge transporting material, the amount of the first charge transporting material is at least 60 wt % based on the total amount of the charge transporting materials, the difference between the highest ionization potential and the lowest ionization potential the charge transporting materials is not more than 0.4 eV, provided that (1) the ionization potentials of all the charge transporting materials are lower than the ionization potential of the charge generating material, or (2) the ionization potential of the first charge transporting material is lower than the ionization potential of the charge generating material, and the ionization potential of the second charge transporting material is higher than the ionization potential of the charge generating material by at least 0.2 eV.

    摘要翻译： 一种电子照相感光体，包括其上具有感光层作为最上层的导电基底，其中感光层包含两种电离电位不同的电荷输送材料，具有较高离子化电位的电荷输送材料以等摩尔于或相等的量存在 相对于具有较低电离电位的其他电荷输送材料的等摩尔量的量。 一种层叠型电子照相感光体，其特征在于，具有导电性基板，其上具有电荷产生层和电荷输送层，其中所述电荷产生层包含粘合剂树脂和分散在其中的电荷产生材料，所述电荷输送层至少包含粘合剂树脂 包括第一电荷输送材料和第二电荷输送材料的两种电荷输送材料，第一电荷输送材料的量相对于电荷输送材料的总量为至少60重量％，最高电离电位与 电荷输送材料的电离电位最低不超过0.4eV，条件是（1）所有电荷输送材料的电离电位低于电荷产生材料的电离电位，或（2） 第一电荷输送材料低于 电荷产生材料的电离电位和第二电荷输送材料的电离电位比电荷产生材料的电离电位高至少0.2eV。

    Electrophotographic photoreceptor having a zirconium and silicon-containing underlayer
    3.
    发明授权
    Electrophotographic photoreceptor having a zirconium and silicon-containing underlayer 失效
    具有锆和含硅底层的电子照相感光体

    公开(公告)号：US5188916A

    公开(公告)日：1993-02-23

    申请号：US757028

    申请日：1991-09-09

    申请人： Masahiko Hodumi ,  Koji Bando ,  Takahiro Suzuki ,  Shigeto Hashiba ,  Yoshiyuki Ono ,  Sadao Okano ,  Seiji Ashiya ,  Masanori Murase

    发明人： Masahiko Hodumi ,  Koji Bando ,  Takahiro Suzuki ,  Shigeto Hashiba ,  Yoshiyuki Ono ,  Sadao Okano ,  Seiji Ashiya ,  Masanori Murase

    IPC分类号： G03G5/14

    CPC分类号： G03G5/144 ,  G03G5/142

    摘要： A novel electrophotographic photoreceptor is disclosed, comprising an undercoating layer provided on an electrically conductive substrate having thereon a light-sensitive layer, wherein the undercoating layer is obtained by coating a solution of a composition comprising zirconium and silicon or a solution of a mixture of a zirconium acetyl acetonate compound and a silane coupling agent, the silicon content in the composition comprising zirconium and silicon is in the range of 5 to 35 mol % based on the total amount of zirconium and silicon, and the hardened undercoating layer obtained from the zirconium acetyl acetonate compound and silane coupling agent is a layer having a hardening degree of 1.2 or less.

    摘要翻译： 公开了一种新颖的电子照相感光体，其包括设置在其上具有感光层的导电基底上的底涂层，其中底涂层是通过涂布包含锆和硅的组合物的溶液或将 乙酰丙酮锆化合物和硅烷偶联剂，包含锆和硅的组合物中的硅含量相对于锆和硅的总量为5〜35摩尔％，并且由乙酰基锆制得的硬化底涂层 丙烯酸酯化合物和硅烷偶联剂是硬化度为1.2以下的层。

    Method for preparing an electrophotographic photoreceptor
    4.
    发明授权
    Method for preparing an electrophotographic photoreceptor 失效
    电子照相感光体的制备方法

    公开(公告)号：US5252422A

    公开(公告)日：1993-10-12

    申请号：US829618

    申请日：1992-01-31

    申请人： Sadao Okano ,  Takahiro Suzuki ,  Masanori Murase ,  Koji Bando ,  Seiji Ashiya

    发明人： Sadao Okano ,  Takahiro Suzuki ,  Masanori Murase ,  Koji Bando ,  Seiji Ashiya

    IPC分类号： G03G5/14

    CPC分类号： G03G5/142

    摘要： A novel method for preparing an electrophotographic photoreceptor is disclosed, which comprises laminating a charge generating layer and a charge transporting layer in this order on an electrically conductive substrate via an undercoating layer, wherein the coating solution for said undercoating layer contains an alkoxide coupling agent represented by formula (I), an aliphatic alcohol solvent containing at least the same number of carbon atoms as in the alkoxy group in said alkoxide coupling agent, and at least one compound selected from the group consisting of aromatic solvents, ethylene glycols and propylene glycols:X.sub.m --m--(OR.sub.1).sub.N (I)wherein R.sub.1 represents an alkyl group having 1 to 5 carbon atoms; M represents Si, Ti, Zr or Al; X represents an organic group; m represents an integer of 0, 1 or 2; and n represents an integer of 1 to 4, provided that when M is Si, Ti or Zr, n is an integer of 1 to 4 and m is an integer of (4-n) and when M is Al, n is an integer of 1 to 3 and m is an integer of (3-n).

    摘要翻译： 公开了一种用于制备电子照相感光体的新方法，其包括依次层叠电荷产生层和电荷输送层，其中所述底涂层的涂布溶液含有表示为烷氧基的偶联剂 通式（I）表示的烷氧基化合物中含有至少相同数目的碳原子的脂族醇溶剂和选自芳族溶剂，乙二醇和丙二醇中的至少一种化合物： Xm-m-（OR1）N（I）其中R1表示具有1至5个碳原子的烷基; M表示Si，Ti，Zr或Al; X表示有机基团; m表示0,1或2的整数; n表示1〜4的整数，条件是当M为Si，Ti或Zr时，n为1〜4的整数，m为（4-n）的整数，当M为Al时，n为整数 为1〜3，m为（3-n）的整数。

    Apparatus for forming image
    5.
    发明授权
    Apparatus for forming image 有权
    用于形成图像的装置

    公开(公告)号：US06835520B2

    公开(公告)日：2004-12-28

    申请号：US10290300

    申请日：2002-11-08

    申请人： Koji Bando ,  Masahiko Hodumi ,  Takahiro Suzuki ,  Kazuhiro Koseki

    发明人： Koji Bando ,  Masahiko Hodumi ,  Takahiro Suzuki ,  Kazuhiro Koseki

    IPC分类号： G03G1316

    CPC分类号： G03G15/75 ,  G03G5/04 ,  G03G15/162 ,  G03G2215/0119

    摘要： An apparatus for forming an image is provided that can sufficiently prevent occurrence of nibbled images without any damage of the photoreceptor and the intermediate transfer body, whereby good image quality can be stably obtained for a long period of time. In an apparatus for forming an image having an intermediate transfer body, the surface of the photoreceptor has a dynamic hardness of 8×109 N/m2 or more, and the surface of the intermediate transfer body has a dynamic hardness larger than that of the surface of the photoreceptor, and a difference between the dynamic hardness of the surface of the photoreceptor and the dynamic hardness of the surface of the intermediate transfer material is 2×1010 N/m2 or less.

    摘要翻译： 提供了一种用于形成图像的装置，其可以充分防止发生啃咬的图像，而不会损害感光体和中间转印体，从而可以长时间稳定地获得良好的图像质量。 在用于形成具有中间转印体的图像的装置中，感光体的表面具有8×10 9 N / m 2以上的动态硬度，并且中间转印体的表面具有大于 感光体的表面的感光体表面的动态硬度与中间转印材料表面的动态硬度之间的差异为2×10 10 N / m 2以下。

    Charging roller, electrophotographic process cartridge, and image forming apparatus
    6.
    发明申请
    Charging roller, electrophotographic process cartridge, and image forming apparatus 有权
    充电辊，电子照相处理盒和成像设备

    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。

    Image forming apparatus
    8.
    发明授权
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号：US06876371B2

    公开(公告)日：2005-04-05

    申请号：US10683273

    申请日：2003-10-14

    申请人： Takahiro Suzuki ,  Taketoshi Hoshizaki ,  Katsumi Nukada ,  Mitsuhide Nakamura ,  Kazuhiro Koseki ,  Takayuki Yamashita ,  Wataru Yamada ,  Koji Bando

    发明人： Takahiro Suzuki ,  Taketoshi Hoshizaki ,  Katsumi Nukada ,  Mitsuhide Nakamura ,  Kazuhiro Koseki ,  Takayuki Yamashita ,  Wataru Yamada ,  Koji Bando

    IPC分类号： G03G15/01 ,  G03G5/05 ,  G03G5/07 ,  G03G5/147 ,  G03G15/00 ,  G03G15/02 ,  G03G15/04 ,  G03G15/16 ,  H04N1/113 ,  B41J2/385 ,  G03G15/09

    CPC分类号： G03G15/75 ,  G03G5/0578 ,  G03G5/14773 ,  G03G2215/00957

    摘要： The invention provides an image forming apparatus comprising at least: an electrophotographic photoreceptor comprising at least a conductive substrate and a photosensitive layer provided on the conductive substrate; a charging device; an exposure device; a developing device; and a transfer device, wherein the exposure device is of a multi beam exposure system which has a surface emitting laser array having two or more light-emitting elements as an exposure light source and which scan the electrophotographic photoreceptor with plural light beams thereby forming electrostatic latent image, and wherein the outermost layer in the electrophotographic photoreceptor, positioned most distant from the conductive substrate, contains a silicon-containing resin containing at least a charge transporting compound or a characteristic group derived from a charge transporting compound, and having a structure in which bonds formed by crosslinking of an O atom with neighboring Si atoms are formed three dimensionally.

    摘要翻译： 本发明提供一种图像形成装置，其至少包括：电子照相感光体，至少包括导电基底和设置在导电基底上的感光层; 充电装置; 曝光装置; 显影装置 以及转印装置，其中所述曝光装置是具有表面发射激光器阵列的多光束曝光系统，所述表面发射激光器阵列具有两个或更多个发光元件作为曝光光源，并且用多个光束扫描所述电子照相感光体，从而形成静电潜像 图像，并且其中位于最远离导电基底的电子照相感光体中的最外层包含至少含有电荷输送化合物或源自电荷输送化合物的特征基团的含硅树脂，并且具有以下结构： 由O原子与相邻的Si原子交联形成的键三维形成。

    Charging roller, electrophotographic process cartridge, and image forming apparatus
    9.
    发明授权
    Charging roller, electrophotographic process cartridge, and image forming apparatus 有权
    充电辊，电子照相处理盒和成像设备

    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。