知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

26 records (took 0.022 seconds)

    Toner for developing electrostatic latent image, toner cartridge containing the toner and image forming apparatus
    1.
    发明授权
    Toner for developing electrostatic latent image, toner cartridge containing the toner and image forming apparatus 有权
    用于显影静电潜像的调色剂，含有调色剂的调色剂盒和成像设备

    公开(公告)号：US06818370B2

    公开(公告)日：2004-11-16

    申请号：US10305191

    申请日：2002-11-27

    Applicant: Osamu Uchinokura ,  Hiroyuki Fushimi ,  Kohki Katoh ,  Shinichiro Yagi ,  Toshiki Nanya

    Inventor： Osamu Uchinokura ,  Hiroyuki Fushimi ,  Kohki Katoh ,  Shinichiro Yagi ,  Toshiki Nanya

    IPC: G03G9087

    CPC classification number: G03G9/08795 ,  G03G9/08755 ,  G03G9/08759 ,  G03G9/08762 ,  G03G9/08797 ,  G03G9/09716 ,  G03G9/09725

    Abstract: A toner for developing an electrostatic latent image, containing a colorant and a binder resin composed of two different resins (A) and (B), wherein resin (A) is substantially free of tetrahydrofuran insolubles, is selected from polyester resins and polyol resins and has such a molecular weight distribution according to gel permeation chromatography that (a) a main peak is present in a molecular weight of 3000 to 9,000 and (b) that portion of resin (A) having a molecular weight of 500 or less accounts for 4% or less based on a total weight of resin (A), wherein resin (B) is substantially free of tetrahydrofuran insolubles and is a polyester resin containing a diol component represented by the formula (1): and wherein the weight ratio of resin (A) to resin (B) is in the range of 60:40 to 85:15.

    Abstract translation: 用于显影静电潜像的调色剂包含着色剂和由两种不同的树脂（A）和（B）组成的粘合剂树脂，其中树脂（A）基本上不含四氢呋喃不溶物，其选自聚酯树脂和多元醇树脂，和 根据凝胶渗透色谱法具有这样的分子量分布，（a）主峰存在于3000〜9000的分子量中，（b）分子量为500以下的树脂（A）的部分为4 基于树脂（A）的总重量的％或更少，其中树脂（B）基本上不含四氢呋喃不溶物，并且是含有由式（1）表示的二醇组分的聚酯树脂：其中树脂（B）的重量比 A）与树脂（B）的摩尔比在60:40至85:15的范围内。

    Two-component developer, two-component developer holding container, and electrophotographic image formation apparatus equipped with the container
    5.
    发明授权
    Two-component developer, two-component developer holding container, and electrophotographic image formation apparatus equipped with the container 有权
    双组分显影剂，双组分显影剂保持容器和装备有容器的电子照相成像设备

    公开(公告)号：US06258502B1

    公开(公告)日：2001-07-10

    申请号：US09579133

    申请日：2000-05-30

    Applicant: Yasushi Nakamura ,  Noboru Kuroda ,  Ryoichi Ito ,  Yasuaki Iwamoto ,  Kohki Katoh ,  Yoshihiro Sugiyama ,  Kenichi Uehara ,  Tomio Kondou

    Inventor： Yasushi Nakamura ,  Noboru Kuroda ,  Ryoichi Ito ,  Yasuaki Iwamoto ,  Kohki Katoh ,  Yoshihiro Sugiyama ,  Kenichi Uehara ,  Tomio Kondou

    IPC: G03G9097

    CPC classification number: G03G9/0819 ,  G03G9/09708 ,  G03G9/107

    Abstract: A two-component developer includes a magnetic carrier including magnetic carrier particles with an average particle diameter of 35 &mgr;m to 100 &mgr;m, and a toner including toner particles with a weight-average particle diameter of 6.0 &mgr;m to 11.5 &mgr;m, to which at least one additive is externally added thereto in an amount of 0.3 to 1.5 wt. % to the toner, the toner particles including (a) toner particles with a particle diameter of 5 &mgr;m or less with a content ratio of 15% or less by number, and (b) toner particles with such a particle diameter that is two times or greater than the weight-average particle diameter of the toner particles with a content ratio of 5% or less by volume, the toner particles satisfying a relationship of 0.60≦D25/D75≦0.85 as defined in the specification. A container in which the two-component developer is contained, and an electrophotographic image formation apparatus in which the container is incorporated are proposed.

    Abstract translation: 双组分显影剂包括磁性载体，其包括平均粒径为35μm至100μm的磁性载体颗粒，以及包含重均粒径为6.0μm至11.5μm的调色剂颗粒的调色剂，至少一个 添加剂的外部添加量为0.3〜1.5重量％。 调色剂颗粒包括（a）粒径为5μm或更小的调色剂颗粒，含量比例为15％以下，（b）具有两倍粒径的调色剂颗粒 或大于含有率为5体积％以下的调色剂颗粒的重均粒径，调色剂颗粒满足说明书中定义的0.60 <= D25 / D75 <= 0.85的关系。 提出了容纳双组分显影剂的容器和其中装入容器的电子照相图像形成装置。

    Transfer device for forming a stable transfer electric field, and an image forming apparatus including the transfer device
    6.
    发明授权
    Transfer device for forming a stable transfer electric field, and an image forming apparatus including the transfer device 有权
    用于形成稳定转印电场的转印装置和包括转印装置的图像形成装置

    公开(公告)号：US07346287B2

    公开(公告)日：2008-03-18

    申请号：US11352213

    申请日：2006-02-13

    Applicant: Hiromi Ogiyama ,  Kohki Katoh ,  Akihiro Sugino ,  Mitsuru Takahashi ,  Katsuya Kawagoe ,  Yuuji Sawai

    Inventor： Hiromi Ogiyama ,  Kohki Katoh ,  Akihiro Sugino ,  Mitsuru Takahashi ,  Katsuya Kawagoe ,  Yuuji Sawai

    IPC: G03G15/01

    CPC classification number: G03G15/167

    Abstract: A transfer device transfers a visual image from an image carrier to a recording medium. The transfer device includes a first transfer element that moves and receives the visual image from the image carrier on a first surface of the first transfer element, a second transfer element provided opposite to the first surface of the first transfer element to pinch and convey the recording medium through a secondary transfer nip part, a facing roller provided on a second surface of the first transfer element opposite to the first surface thereof, and a constant-current power supply that applies an electric current voltage to a core metal of the facing roller to transfer the visual image from the first transfer element to the recording medium. The electric current voltage applied to the core metal has a polarity equal to a polarity of the visual image and is subjected to a constant-current control.

    Abstract translation: 传送设备将视觉图像从图像载体传送到记录介质。 转印装置包括：第一转印元件，其在第一转印元件的第一表面上从图像载体移动和接收视觉图像;第二转印元件，设置成与第一转印元件的第一表面相对，以夹持并传送记录 介质通过二次转印夹持部分，设置在第一转印元件的与其第一表面相对的第二表面上的面对辊以及将电流电压施加到对置辊的芯金属上的恒流电源， 将视觉图像从第一传送元件传送到记录介质。 施加到芯金属的电流电压具有与视觉图像的极性相同的极性，并且进行恒定电流控制。

    Transfer bias applying method for an image forming apparatus and device for the same
    9.
    发明授权
    Transfer bias applying method for an image forming apparatus and device for the same 失效
    用于图像形成装置的转印偏压施加方法及其装置

    公开(公告)号：US06829450B2

    公开(公告)日：2004-12-07

    申请号：US10614828

    申请日：2003-07-09

    Applicant: Takahiro Tamiya ,  Akihiro Sugino ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Kohki Katoh ,  Mitsuru Takahashi ,  Yuuji Sawai

    Inventor： Takahiro Tamiya ,  Akihiro Sugino ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Kohki Katoh ,  Mitsuru Takahashi ,  Yuuji Sawai

    IPC: G03G1516

    CPC classification number: G03G15/0131 ,  G03G2215/0119

    Abstract: In an electrophotographic image forming apparatus of the type including a plurality of image carriers arranged along an image transfer belt and an image transferring device configured to transfer toner images of different colors from the image carriers to a sheet being conveyed by an image transfer belt or by way of the image transfer belt by applying a bias to the belt, a bias applying method of the present invention can measure a current leaking between a plurality of high-tension power supply sections or to the ends thereof as AC resistances between respective terminals and therefore to accurately measure the leak currents of DC components. Therefore, when relatively high DC components are selected, a difference in current between a plurality of power supply sections can be maintained constant.

    Abstract translation: 在包括沿着图像转印带布置的多个图像载体的类型的电子照相图像形成装置中，以及图像转印装置，其被配置为将不同颜色的调色剂图像从图像载体转印到由图像转印带或由图像转印带传送的纸张 通过对带施加偏压，图像转印带的方式，本发明的偏压施加方法可以测量多个高压电源部分之间或其端部之间的电流作为各端子之间的交流电阻，因此 以准确测量直流分量的漏电流。 因此，当选择相对高的DC分量时，可以将多个电源部之间的电流差保持恒定。

Patent Agency Ranking