利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

23 条记录 (耗时 0.03 秒)

    Image forming method
    3.
    发明授权
    Image forming method 失效
    图像形成方法

    公开(公告)号：US5532101A

    公开(公告)日：1996-07-02

    申请号：US526564

    申请日：1995-09-11

    申请人： Keita Nozawa ,  Satoshi Yoshida ,  Tsutomu Kukimoto

    发明人： Keita Nozawa ,  Satoshi Yoshida ,  Tsutomu Kukimoto

    IPC分类号： G03G9/083 ,  G03G9/097 ,  G03G13/16 ,  G03G15/16 ,  G03G21/10

    CPC分类号： G03G9/09716 ,  G03G13/16 ,  G03G15/167 ,  G03G9/0834

    摘要： An image forming method, including steps of: charging a photosensitive member; exposing the photosensitive member so that an electrostatically charged image is formed; developing the electrostatically charged image so that a toner image is formed; transferring the toner image to a transfer member by transfer means; and cleaning residual toner particles on the photosensitive member by cleaning means after the toner image has been transferred, wherein the photosensitive member rotates at peripheral speed V (mm/sec); the transfer means is disposed so that the distance from a developing position on the photosensitive member to a transfer position in a direction of rotation of the photosensitive member is d.sub.1 (mm); d.sub.1 /v is 0.17 sec. or less; and developing the electrostatically charged image with toner having a triboelectric charge of .vertline.5.vertline. to .vertline.50.vertline. .mu.c/g and containing 30% by number or less of toner particles having sizes below 4 .mu.m.

    摘要翻译： 一种图像形成方法，包括以下步骤：对感光构件充电; 曝光感光构件，使得形成静电荷图像; 显影静电电荷的图像，从而形成调色剂图像; 通过转印装置将调色剂图像转印到转印部件上; 并且在调色剂图像转印之后通过清洁装置清洁感光构件上的残留调色剂颗粒，其中感光构件以圆周速度V（mm / sec）旋转; 传送装置设置成使得从感光构件上的显影位置到感光构件的旋转方向上的转印位置的距离为d1（mm）; d1 / v为0.17秒。 或更少; 并用具有| 5 |的摩擦电荷的调色剂显影静电电荷的图像 到| 50 | mu c / g，含有30％以下的尺寸在4μm以下的调色剂颗粒。

    Image forming method and apparatus using a particular toner
    4.
    发明授权
    Image forming method and apparatus using a particular toner 失效
    使用特定调色剂的成像方法和装置

    公开(公告)号：US5774771A

    公开(公告)日：1998-06-30

    申请号：US599375

    申请日：1996-02-09

    申请人： Tsutomu Kukimoto ,  Motoo Urawa ,  Kenji Okado ,  Toshiyuki Ugai ,  Keita Nozawa ,  Satoshi Yoshida ,  Yuki Karaki

    发明人： Tsutomu Kukimoto ,  Motoo Urawa ,  Kenji Okado ,  Toshiyuki Ugai ,  Keita Nozawa ,  Satoshi Yoshida ,  Yuki Karaki

    IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G9/097 ,  G03G15/08 ,  G03G15/14

    CPC分类号： G03G9/0827 ,  G03G9/08 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/09 ,  G03G9/09716

    摘要： An image forming method has a developing step of developing an electrostatic latent image by the use of a developer to form a toner image on an electrostatic latent image bearing member, a primary transfer step of transferring the toner image onto an intermediate transfer member to which a voltage is applied, and a secondary transfer step of transferring onto a transfer medium the toner image held on the intermediate transfer member, while a transfer means to which a voltage is applied is pressed against the transfer medium. The developer has a toner. The toner is a black toner having at least i) black toner particles formed of a binder resin with a colorant dispersed therein and ii) an inorganic fine powder. The black toner has the value of shape factor SF-1 of 110

    摘要翻译： 图像形成方法具有通过使用显影剂使静电潜像显影以在静电潜像承载部件上形成调色剂图像的显影步骤，将调色剂图像转印到中间转印部件上的一次转印步骤， 施加电压，以及二次转印步骤，在将施加有电压的转印装置压在转印介质上的同时，转印到转印介质上，保持在中间转印部件上的调色剂图像。 显影剂有一个墨粉。 调色剂是具有至少i）由分散有着色剂的粘合剂树脂形成的黑色调色剂颗粒和ii）无机细粉末的黑色调色剂。 黑色调色剂的形状因子SF-1的值为110

    Toner for developing electrostatic image, image forming method, developing device and process cartridge
    5.
    发明授权
    Toner for developing electrostatic image, image forming method, developing device and process cartridge 失效
    用于显影静电图像的调色剂，图像形成方法，显影装置和处理盒

    公开(公告)号：US5712070A

    公开(公告)日：1998-01-27

    申请号：US597876

    申请日：1996-02-07

    申请人： Keita Nozawa ,  Motoo Urawa ,  Osamu Tamura ,  Tsutomu Kukimoto

    发明人： Keita Nozawa ,  Motoo Urawa ,  Osamu Tamura ,  Tsutomu Kukimoto

    IPC分类号： G03G9/08 ,  G03G9/083

    CPC分类号： G03G9/0821 ,  G03G9/0819 ,  G03G9/0834

    摘要： A toner for developing electrostatic images is constituted by toner particles comprising a binder resin and a colorant. The toner is characterized by having (i) a particle size distribution including a weight-average particle size D.sub.4 of X .mu.m and Y% by number of toner particles having a particle size of at most 3.17 .mu.m satisfying the following conditions (1) and (2): -5X+35.ltoreq.Y.ltoreq.-25X+180 (1) 3.5.ltoreq.X.ltoreq.6.5 (2), (ii) at least one heat absorption peak in a temperature region of at most 110.degree. C. as measured by differential thermal analysis, and (iii) a tap void of 0.45-0.70. The toner is effective for obviating the sleeve ghost phenomenon.

    摘要翻译： 用于显影静电图像的调色剂由包含粘合剂树脂和着色剂的调色剂颗粒构成。 调色剂的特征在于：（i）包括重均粒径D4为Xμm的颗粒尺寸分布，以及颗粒尺寸至多为3.17μm的调色剂颗粒数量Y％满足以下条件（1） 和（2）： - 5X + 35

    Toner and image forming method
    9.
    发明授权
    Toner and image forming method 有权
    调色剂和成像方法

    公开(公告)号：US5976752A

    公开(公告)日：1999-11-02

    申请号：US135167

    申请日：1998-08-18

    申请人： Satoshi Matsunaga ,  Koichi Tomiyama ,  Yuichi Mizoh ,  Keita Nozawa ,  Minekazu Endo ,  Tadashi Doujo ,  Yoshihiro Ogawa ,  Nene Shibayama

    发明人： Satoshi Matsunaga ,  Koichi Tomiyama ,  Yuichi Mizoh ,  Keita Nozawa ,  Minekazu Endo ,  Tadashi Doujo ,  Yoshihiro Ogawa ,  Nene Shibayama

    IPC分类号： G03G9/087 ,  G03G9/097 ,  G03G13/22

    CPC分类号： G03G9/08755 ,  G03G9/087 ,  G03G9/08702 ,  G03G9/08711 ,  G03G9/08728 ,  G03G9/08797

    摘要： An electrophotographic toner is composed of at least a binder resin, a colorant, and a wax. The binder resin (a) comprises a polyester resin, a vinyl resin and a hybrid resin component comprising a polyester unit and a vinyl polymer unit, (b) has a THF (tetrahydrofuran)-soluble content (W1) of 50-85 wt. % and a THF-insoluble content (W2) of 5-50 wt. %, an ethyl acetate-soluble content (W3) of 40-98 wt. % and an ethyl acetate-insoluble content (W4) of 2-60 wt. %, a chloroform-soluble content (W5) of 55-90 wt. % and a chloroform-insoluble content (W6) of 10-45 wt. %, respectively after 10 hours of Soxhlet extraction with respective solvents, giving a ratio W4/S6 of 1.1-4.0, and contains a THF-soluble content providing a GPC (gel permeation chromatography) chromatogram exhibiting a main peak in a molecular weight range of 4000-9000, including 35.0-65.0% (A1) of a component haing molecular weights in a range of 500 to below 1.times.10.sup.4, 25.0-45.0% (A2) of a component having molecular weights in a range of 1.times.10.sup.4 to below 1.times.10.sup.5 and 10.0-30.0% (A3) of a component having molecular weights of at least 1.times.10.sup.5 giving a ratio A1/A2 of 1.05-2.00. The binder resin shows good dispersibility of wax and colorant.

    摘要翻译： 电子照相调色剂由至少粘合剂树脂，着色剂和蜡组成。 粘合剂树脂（a）包括聚酯树脂，乙烯基树脂和包含聚酯单元和乙烯基聚合物单元的混合树脂组分，（b）具有50-85重量％的THF（四氢呋喃） - 可溶成分（W1） ％和THF不溶物含量（W2）为5-50wt。 ％，40-98重量％的乙酸乙酯可溶物含量（W3） ％，乙酸乙酯不溶物含量（W4）为2-60wt。 ％，55-90重量％的氯仿可溶物含量（W5） ％，氯仿不溶物含量（W6）为10-45wt。 ％，分别用各自的溶剂提取索氏提取10小时后，得到比例W4 / S6为1.1-4.0，并含有THF可溶性成分，提供在分子量范围内显示主峰的GPC（凝胶渗透色谱）色谱图 4000-9000，包括分子量在500至低于1×10 4范围内的分子量为35.0-65.0％（A1），分子量为1×104至低于1×10 5的组分的25.0-45.0％（A2）和10.0 -30.0％（A3）的分子量为至少1×10 5的组分，其A1 / A2比为1.05-2.00。 粘合剂树脂表现出良好的蜡和着色剂的分散性。

    Toner, process for producing a toner, image forming method and image forming apparatus
    10.
    发明申请
    Toner, process for producing a toner, image forming method and image forming apparatus 有权

    公开(公告)号：US20050208406A1

    公开(公告)日：2005-09-22

    申请号：US11125373

    申请日：2005-05-10

    申请人： Keita Nozawa ,  Atsushi Kubo ,  Masanori Ito ,  Tomoaki Igarashi ,  Kiyokazu Suzuki

    发明人： Keita Nozawa ,  Atsushi Kubo ,  Masanori Ito ,  Tomoaki Igarashi ,  Kiyokazu Suzuki

    IPC分类号： G03G9/08 ,  G03G9/097

    CPC分类号： G03G9/09725 ,  G03G9/09708

    摘要： An electrophotographic toner is formed as a blend of toner particles and external additives. The external additives include (1) first inorganic fine particles having an average primary particle size of 80-800 nm of oxide of a metal selected from the group consisting of titanium, aluminum, zinc and zirconium, (2) second inorganic fine particles other than silica having an average primary particle size of below 80 nm and (3) silica fine particles having an average primary particle size of below 30 nm. As a result, the toner can be made free from difficulties, such as melt-sticking onto an image-bearing member in a low humidity environment, roughening of halftone images in a low humidity environment, toner blot-down after storage at high temperatures or in continuous image formation on a large number of sheets, fog in continuous formations of images of low color area percentage in a low humidity environment, and re-transfer in multi-color image formation. Thus, the toner is suitably used in a multi-color image forming system.