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    Process for producing belt-shaped member from a die-extruded film having a film thickness, die gap relationship
    4.
    发明授权
    Process for producing belt-shaped member from a die-extruded film having a film thickness, die gap relationship 有权
    用于从具有膜厚度，模具间隙关系的模压挤出薄膜制造带状构件的方法

    公开(公告)号：US06592803B2

    公开(公告)日：2003-07-15

    申请号：US09750165

    申请日：2000-12-29

    申请人： Akihiko Nakazawa ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda

    发明人： Akihiko Nakazawa ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda

    IPC分类号： B29C4904

    CPC分类号： G03G15/65 ,  B29C47/0023 ,  B29C47/065 ,  B29C47/26 ,  B29C47/263 ,  B29K2995/0005 ,  B29L2009/00 ,  B29L2031/7092 ,  G03G15/162 ,  G03G2215/00683 ,  Y10T428/24802

    摘要： A process produces a belt-shaped member to be used in an image-forming apparatus is disclosed in which a toner image held on a latent-image-bearing member is electrostatically transferred under application of a voltage via the belt-shaped transfer member. The process includes the steps of melt-extruding a material containing a thermoplastic resin, from a circular die into a cylindrical film; forming the resultant cylindrical film by stretching in such a way that the cylindrical film comes to have a thickness smaller than the die gap of the circular die; and cutting the cylindrical film thus formed, into a seamless belt having a thickness of from 40 &mgr;m to 300 &mgr;m and a modulus in tension of 600 MPa or higher. The stretched cylindrical film is formed to have a thickness not larger than ⅓ of the die gap of the circular die. A belt-shaped transfer member may be produced by the above-described process. The so-produced belt-shaped transfer member is usable as a transfer belt in an image-forming apparatus in which a toner image held on a latent-image-bearing member is electrostatically transferred under application of a voltage via the belt-shaped transfer member.

    摘要翻译： 公开了一种在图像形成装置中使用的带状构件，其中保持在潜像承载构件上的调色剂图像经由带状转印构件施加电压而被静电转印。 该方法包括将包含热塑性树脂的材料从圆形模头熔融挤出成圆筒形薄片的步骤; 通过使圆柱形薄膜的厚度比圆形模具的模具间隙小的方式进行拉伸来形成所得到的圆柱形薄膜; 并将由此形成的圆筒形薄膜切割成厚度为40μm至300μm，张力模量为600MPa或更高的无缝带。 拉伸的圆筒形薄膜形成为不大于圆形模头的模具间隙的1/3的厚度。 可以通过上述方法制造带状转印构件。 所生产的带状转印部件可用作图像形成装置中的转印带，其中保持在潜像承载部件上的调色剂图像经由带状转印部件施加电压而静电转印 。

    Intermediate transfer member and electrophotographic apparatus including same
    5.
    发明授权
    Intermediate transfer member and electrophotographic apparatus including same 失效
    中间转印部件和包括其的电子照相设备

    公开(公告)号：US6144830A

    公开(公告)日：2000-11-07

    申请号：US780773

    申请日：1997-01-09

    申请人： Takashi Kusaba ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akihiko Nakazawa ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe

    发明人： Takashi Kusaba ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akihiko Nakazawa ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe

    IPC分类号： G03G15/16 ,  G03G15/00

    CPC分类号： G03G15/162

    摘要： An intermediate transfer member is formed by at least a base layer and a surface layer. The base layer is formed by epichlorohydrin rubber and acrylonitrile-butadiene rubber mixed in a certain weight ratio (preferably 1:9 to 9:1). The surface layer is formed by urethane resin or elastomer and a fluorine-containing compound powder. The fluorine-containing compound powder may preferably be contained in an amount of 20-80 wt. % based on the surface layer. The intermediate transfer member is suitable for full-color image formation by electrophotography and is effective in improving a transfer performance and providing clear images without causing transfer failure even in repetitive use for a long period.

    摘要翻译： 中间转印部件至少由基底层和表面层形成。 基层由表氯醇橡胶和以一定重量比（优选1:9至9:1）混合的丙烯腈 - 丁二烯橡胶形成。 表层由聚氨酯树脂或弹性体和含氟化合物粉末形成。 含氟化合物粉末的含量优选为20〜80重量％。 基于表面层的％。 中间转印部件适用于通过电子照相法进行全色图像形成，并且即使在长时间的重复使用中也能有效地提高转印性能并提供清晰的图像而不引起转印失败。

    Toner for developing electrostatic image, and image fixing method
    7.
    发明授权
    Toner for developing electrostatic image, and image fixing method 失效
    用于显影静电图像的调色剂和图像定影方法

    公开(公告)号：US5250382A

    公开(公告)日：1993-10-05

    申请号：US813677

    申请日：1991-12-26

    申请人： Minoru Shimojo ,  Takaaki Kohtaki ,  Tsuyoshi Takiguchi

    发明人： Minoru Shimojo ,  Takaaki Kohtaki ,  Tsuyoshi Takiguchi

    IPC分类号： G03G9/087

    CPC分类号： G03G9/087 ,  G03G9/08795 ,  G03G9/08797

    摘要： A toner for developing an electrostatic image has toner particles containing i) a binder resin comprising a resin composition with a domain-matrix structure and ii) a colorant.The resin composition with a domain-matrix a structure is comprised of a resin P1 that forms domain particles and a resin P2 that forms a matrix. The resin P1 has a glass transition temperature Tg1 of from 0.degree. C. to 60.degree. C., and the resin P2 has a glass transition temperature Tg2 of from 40.degree. C. to 90.degree. C. The glass transition temperature Tg2 of the resin P2 is at least 5.degree. C. higher than the glass transition temperature Tg1 of the resin P1, and the domain particles having an average particle diameter of not larger than 5 .mu.m.

    Negatively chargeable toner, image-forming method and process cartridge
    8.
    发明授权
    Negatively chargeable toner, image-forming method and process cartridge 失效
    负电荷调色剂，成像方法和处理盒

    公开(公告)号：US06846601B2

    公开(公告)日：2005-01-25

    申请号：US10383617

    申请日：2003-03-10

    申请人： Minoru Shimojo ,  Satoshi Matsunaga

    发明人： Minoru Shimojo ,  Satoshi Matsunaga

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/097

    CPC分类号： G03G9/09716 ,  G03G9/0819 ,  G03G9/08704 ,  G03G9/08708 ,  G03G9/08755 ,  G03G9/08791 ,  G03G9/08795 ,  G03G9/08797

    摘要： In a negatively chargeable toner having i) negatively chargeable toner particles containing at least a binder resin, a colorant and a vinyl copolymer and ii) an inorganic fine powder, the negatively chargeable toner has a weight-average particle diameter of from 4 μm to 12 μm and contains, in particle size distribution of the toner, less than 50% by volume of particles of 10.1 μm or more in particle diameter, and the vinyl copolymer is a vinyl copolymer obtained by copolymerizing a monomer composition which contains at least i) a vinyl monomer such as an N-substituted acryl- or methacrylamide or a ring-structure acryl- or methacrylamide and ii) a vinyl monomer having as a functional group a carboxyl group or a carboxyl group made into salt structure. An image-forming method and a process cartridge make use of such a negatively chargeable toner.

    摘要翻译： 在带负电荷的调色剂中，i）负极带电的调色剂颗粒至少含有粘合剂树脂，着色剂和乙烯基共聚物，和ii）无机细粉，所述带负电荷的调色剂的重均粒径为4μm至12 并且在调色剂的粒径分布中含有小于50体积％的粒径为10.1μm或更大的颗粒，并且乙烯基共聚物是通过共聚单体组合物而获得的乙烯基共聚物，所述单体组合物至少包含i） 乙烯基单体，例如N-取代的丙烯酰基或甲基丙烯酰胺或环结构的丙烯酰基或甲基丙烯酰胺，和ii）具有制成盐结构的羧基或羧基官能团的乙烯基单体。 图像形成方法和处理盒使用这种可带负电的调色剂。

    Image forming apparatus and intermediate transfer member
    10.
    发明授权
    Image forming apparatus and intermediate transfer member 失效
    图像形成装置和中间转印构件

    公开(公告)号：US6078773A

    公开(公告)日：2000-06-20

    申请号：US22897

    申请日：1998-02-12

    申请人： Minoru Shimojo ,  Akira Shimada ,  Hiroyuki Osada ,  Atsushi Tanaka ,  Tsunenori Ashibe

    发明人： Minoru Shimojo ,  Akira Shimada ,  Hiroyuki Osada ,  Atsushi Tanaka ,  Tsunenori Ashibe

    IPC分类号： G03G15/16 ,  G03G15/01

    CPC分类号： G03G15/162

    摘要： An image forming apparatus has a first image bearing member and an intermediate transfer member onto which a toner image formed on the first image bearing member is primarily transferred and through which the toner image thus transferred is secondarily transferred onto a second image bearing member. The intermediate transfer member has a surface layer on a base layer and the surface layer contains a polyurethane resin obtained by the reaction of an olefinpolyol with an isocyanate.

    摘要翻译： 图像形成装置具有第一图像承载部件和中间转印部件，在第一图像承载部件上形成有第一图像承载部件上的调色剂图像，并且将如此转印的调色剂图像二次转印到第二图像承载部件上。 中间转印部件在基层上具有表面层，表面层含有通过使烯烃多元醇与异氰酸酯反应得到的聚氨酯树脂。