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47 条记录 (耗时 0.047 秒)

    Color toner
    21.
    发明授权
    Color toner 失效

    公开(公告)号：US5120631A

    公开(公告)日：1992-06-09

    申请号：US514232

    申请日：1990-04-25

    申请人： Makoto Kanbayashi ,  Kenji Okado ,  Takayuki Nagatsuka ,  Yoshinobu Baba

    发明人： Makoto Kanbayashi ,  Kenji Okado ,  Takayuki Nagatsuka ,  Yoshinobu Baba

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

    CPC分类号： G03G9/09716 ,  G03G9/09 ,  G03G9/09708 ,  G03G9/09725

    摘要： A color toner, comprises non-magnetic resin particles containing a coloring agent and two types of inorganic oxide particles, wherein;particles of coloring agent have an average particle diameter D of 300 m.mu..ltoreq.D.ltoreq.800 m.mu. as determined by measurement of scattered-light intensity; coloring agent particles with a particle diameter of from (D-120) m.mu. to (D+120) m.mu. account for not less than 90% of the whole; coloring agent particles with a particle diameter of 169 m.mu. or less account for not more than 1.0%; and coloring agent particles with a particle diameter of 949 m.mu. or more account for not more than 0.5%;said color toner has a volume average diameter of from 6 to 10 .mu.m; colored resin particles with a particle diameter of 5 .mu.m or less are contained in a proportion of from 15 to 40% by number; colored resin particles with a particle diameter of from 12.7 to 16.0 .mu.m are contained in an amount of from 0.1 to 5.0% by volume; colored resin particles with a particle diameter of 16 .mu.m or more are contained in an amount of not more than 1.0% by volume; and colored resin particles with a particle diameter of from 6.35 to 10.1 .mu.m have a particle size distribution that satisfies the following expression:9.ltoreq.V.times.dv/N.ltoreq.14 wherein V represent a volume percentage of colored resin particles with a diameter of from 6.35 to 10.1 .mu.m; N represents a number percentage of colored resin particles with a diameter of from 6.35 to 10.1 .mu.m; and dv represents a volume average particle diameter of the whole colored resin particles; andsaid inorganic oxide particles comprise a hydrophobic inorganic oxide (A) having an absolute value of not less than 50 .mu.c/g for the amount of triboelectricity and a specific surface area S.sub.A of from 80 to 300 m.sup.2 /g as measured by the BET method, contained in an amount of a% by weight based on the colored resin particles, and a hydrophilic inorganic oxide (B) having an absolute value of not more than 20 .mu.c/g for the amount of triboelectricity and a specific surface area S.sub.B of from 30 to 200 m.sup.2 /g as measured by the BET method, contained in an amount of b% by weight based on the colored resin particles, where S.sub.A .gtoreq.S.sub.B, a.gtoreq.b, and 0.3.ltoreq.a+b.ltoreq.1.5.

    Magnetic carrier, two-component developer and image forming method
    22.
    发明授权
    Magnetic carrier, two-component developer and image forming method 有权
    磁性载体，双组分显影剂和成像方法

    公开(公告)号：US6124067A

    公开(公告)日：2000-09-26

    申请号：US358409

    申请日：1999-07-22

    申请人： Yushi Mikuriya ,  Kenji Okado ,  Kazumi Yoshizaki

    发明人： Yushi Mikuriya ,  Kenji Okado ,  Kazumi Yoshizaki

    IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G9/107 ,  G03G9/113 ,  G03G15/08

    CPC分类号： G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1132 ,  G03G9/1134 ,  G03G9/1135 ,  G03G9/1139

    摘要： A magnetic carrier constituting a two-component developer for use in an electrophotographic image forming method is formed of a carrier core comprising a first resin and magnetic fine particles dispersed in the first resin, and a second resin surface-coating the carrier core. (a) The magnetic carrier has a true specific gravity of 2.5-4.5, a magnetization .sigma..sub.1000 as measured in a magnetic field of 1000.times.(10.sup.3 /4.pi.).multidot.A/m (1000 oersted) of 15-60 Am.sup.2 /kg (emu/g), a residual magnetization .sigma..sub.r of 0.1-20 Am.sup.2 /kg (emu/g) and a resistivity of 5.times.10.sup.11 -5.times.10.sup.15 ohm.cm. (b) The first resin has a polymer chain including a methylene unit (--CH.sub.2 --). (c) The second resin has at least a fluoro-alkyl unit, a methylene unit (--CH.sub.2 --) and an ester unit. (d) The carrier core is surface-coated with (i) a mixture of the second resin and a coupling agent having at least an amino group and a methylene unit, or (ii) a coupling agent having at least an amino group and a methylene unit, and then with the second resin.

    摘要翻译： 构成用于电子照相成像方法的双组分显影剂的磁性载体由包含分散在第一树脂中的第一树脂和磁性细颗粒的载体芯和表面涂覆载体芯的第二树脂形成。 （a）磁性载体的真比重为2.5-4.5，在1000×（103/4 pi）×A / m（1000奥斯特）为15-60Am 2 / kg（emu）的磁场中测量的磁化σ1000 / g），剩余磁化σr为0.1-20Am 2 / kg（emu / g），电阻率为5×10 11 -5×10 15欧姆·厘米。 （b）第一树脂具有包含亚甲基单元（-CH 2 - ）的聚合物链。 （c）第二树脂具有至少氟烷基单元，亚甲基单元（-CH 2 - ）和酯单元。 （d）载体芯表面涂覆有（i）第二树脂和至少具有氨基和亚甲基单元的偶联剂的混合物，或（ii）至少具有氨基的偶联剂和 亚甲基单元，然后与第二树脂。

    Color toner and two-component developer containing same
    23.
    发明授权
    Color toner and two-component developer containing same 失效
    彩色调色剂和包含它的两组分显影剂

    公开(公告)号：US5116711A

    公开(公告)日：1992-05-26

    申请号：US504696

    申请日：1990-04-05

    申请人： Hiroyuki Kobayashi ,  Mitsuru Uchida ,  Kenji Okado

    发明人： Hiroyuki Kobayashi ,  Mitsuru Uchida ,  Kenji Okado

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/10 ,  G03G9/113 ,  G03G13/01 ,  G03G15/01

    CPC分类号： G03G9/09 ,  G03G13/013 ,  G03G9/08

    摘要： Four color toners of yellow, magenta, cyan and black, and four two-component developers containing the four color toners respectively in combination with a resin-coated ferrite carrier suitable for multi-color electrophotographic copying are provided. Each of the four-color toners is strictly regulated in relation not only to the carrier but also to the other color toners. More specifically, each color toner is strictly controlled with respect to a particle size distribution, freeness from agglomeration, melting characteristics including heat-absorption peaks and apparent viscosity on melting, chromaticity, triboelectric chargeability and optical toner concentration detection characteristic. Because of the strict regulation of these various parameters, the resultant multi-color toner or developer system shows excellent performances at every stage of multi-color electrophotography including development, transfer and fixing (color-mixing) for a long period of successive copying.

    Toner application method and treated magnetic particles for use therein
    25.
    发明授权
    Toner application method and treated magnetic particles for use therein 失效
    调色剂施用方法和处理过的磁性颗粒

    公开(公告)号：US4590140A

    公开(公告)日：1986-05-20

    申请号：US658779

    申请日：1984-10-09

    申请人： Yasuo Mitsuhashi ,  Masanori Takenouchi ,  Hatsuo Tajima ,  Masaki Uchiyama ,  Motoo Urawa ,  Kenji Okado

    发明人： Yasuo Mitsuhashi ,  Masanori Takenouchi ,  Hatsuo Tajima ,  Masaki Uchiyama ,  Motoo Urawa ,  Kenji Okado

    IPC分类号： G03G15/09 ,  G03G9/083 ,  G03G9/113 ,  G03G13/09 ,  G03G13/08

    CPC分类号： G03G9/083 ,  Y10S222/01

    摘要： A method for applying a toner comprising: forming, in a container containing a toner and magnetic particles for application of the toner, a magnetic brush of the magnetic particles; circulating the magnetic particles in the container; forming a thin layer of the toner electrically charged on the toner carrying member, wherein the magnetic particles have been treated with a substance A having a position opposite to that of the toner in the triboelectric series with the material constituting at least the surface of the toner carrying member as the standard substance and with a substance B having a position between the substance A and the toner in the triboelectric series.

    摘要翻译： 一种施加调色剂的方法，包括：在容纳调色剂的容器和用于施加调色剂的磁性颗粒的容器中形成磁性颗粒的磁刷; 将磁性颗粒循环在容器中; 形成在调色剂承载构件上带电的调色剂薄层，其中已经用具有与摩擦系列中的调色剂的位置相反的位置的物质A处理磁性颗粒，其中至少构成调色剂表面的材料 携带部件作为标准物质，物质B具有物质A和摩擦系列中的调色剂之间的位置。

    Image forming apparatus, and replenishing developer kit
    28.
    发明授权
    Image forming apparatus, and replenishing developer kit 有权
    成像设备和补充开发套件

    公开(公告)号：US07024138B2

    公开(公告)日：2006-04-04

    申请号：US10765033

    申请日：2004-01-28

    申请人： Naotaka Ikeda ,  Kenji Okado ,  Kazumi Yoshizaki ,  Hironori Minagawa

    发明人： Naotaka Ikeda ,  Kenji Okado ,  Kazumi Yoshizaki ,  Hironori Minagawa

    IPC分类号： G03G15/01

    CPC分类号： G03G15/08 ,  G03G15/01 ,  G03G15/0865 ,  G03G2215/0607 ,  G03G2215/066

    摘要： In an image forming apparatus having at least one single electrostatic latent image bearing member and a plurality of image forming units each having a replenishing developer cartridge and a developing assembly, at least one of the image forming units is a special-color image forming unit having a special-color replenishing developer cartridge containing a special-color replenishing developer, and at least one of the other image forming unit is a non-special-color image forming unit having a non-special-color replenishing developer cartridge containing a non-special-color replenishing developer. The special-color replenishing developer cartridge has a volume larger than the volume of the non-special-color replenishing developer cartridge, and the special-color replenishing developer contains a toner and a carrier.

    摘要翻译： 在具有至少一个单一静电潜像承载部件和多个图像形成单元的图像形成装置中，每个图像形成单元均具有补充显影剂盒和显影组件，至少一个图像形成单元是特殊颜色图像形成单元，其具有 包含特殊颜色补充显影剂的特殊颜色补充显影剂盒，并且至少其中一个图像形成单元是非特殊颜色图像形成单元，其具有包含非特殊颜色补充显影剂盒的非特殊颜色补充显影剂盒 彩色补充开发者。 特殊颜色补充显影剂盒的体积大于非特殊颜色补充显影剂盒的体积，并且特殊颜色补充显影剂含有调色剂和载体。

    Toner, two-component developer and image forming method
    30.
    发明授权
    Toner, two-component developer and image forming method 失效
    调色剂，双组分显影剂和成像方法

    公开(公告)号：US6077635A

    公开(公告)日：2000-06-20

    申请号：US99527

    申请日：1998-06-18

    申请人： Kenji Okado ,  Ryoichi Fujita ,  Wakashi Iida ,  Yuji Moriki ,  Kazumi Yoshizaki ,  Michihisa Magome

    发明人： Kenji Okado ,  Ryoichi Fujita ,  Wakashi Iida ,  Yuji Moriki ,  Kazumi Yoshizaki ,  Michihisa Magome

    IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G13/01

    CPC分类号： G03G9/0827 ,  G03G9/0819 ,  G03G9/09708

    摘要： A toner is disclosed which has toner particles and an external additive. The toner has (a) in circularity distribution of particles measured with a flow type particle image analyzer, an average circularity of from 0.920 to 0.995, containing particles with a circularity of less than 0.950 in an amount of from 2% by number to 40% by number; and (b) a weight-average particle diameter of from 2.0 .mu.m to 9.0 .mu.m as measured by Coulter method. The external additive has, on the toner particles, at least (i) an inorganic fine powder (A) present in the state of primary particles or secondary particles and having an average particle length of from 10 m.mu.m to 400 m.mu.m and a shape factor SF-1 of from 100 to 130 and (ii) a non-spherical inorganic fine powder (B) formed by coalescence of a plurality of particles and having a shape factor SF-1 of greater than 150. Also, a two-component developer and an image forming method, using the toner, are disclosed.

    摘要翻译： 公开了一种具有调色剂颗粒和外部添加剂的调色剂。 调色剂具有（a）以流动型颗粒图像分析仪测量的颗粒的圆形分布，平均圆形度为0.920至0.995，其中圆形度小于0.950的颗粒的量为2％至40％ 按数量 （b）通过Coulter法测定的重均粒径为2.0μm〜9.0μm。 外部添加剂在调色剂颗粒上至少存在（i）以一次粒子或二次粒子状态存在的平均粒子长度为10μm〜400μm的无机细粉末（A）， 100〜130的形状因子SF-1和（ii）通过多个粒子的聚结而形成的非球形的无机细粉末（B），并且具有大于150的形状因子SF-1。另外， - 组分显影剂和使用调色剂的图像形成方法。