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    Method of draw-forming a metal sheet having an organic film
    6.
    发明授权
    Method of draw-forming a metal sheet having an organic film 失效
    拉伸形成具有有机膜的金属片的方法

    公开(公告)号：US5433099A

    公开(公告)日：1995-07-18

    申请号：US255808

    申请日：1994-06-07

    申请人： Imazu Katsuhiro ,  Akira Kobayashi ,  Tomomi Kobayashi

    发明人： Imazu Katsuhiro ,  Akira Kobayashi ,  Tomomi Kobayashi

    IPC分类号： B21D22/20 ,  B21D24/04 ,  B21D24/10 ,  B21D24/12 ,  B21D51/26 ,  B29C51/08 ,  B29C51/14 ,  B32B15/08 ,  B21D22/22

    CPC分类号： B21D24/12

    摘要： A draw-forming method in which a disc-like metal sheet having an organic film or a cup made of a metal sheet having an organic film is held by an annular holder member and a drawing die, and a drawing punch and the drawing die are moved in mesh with each other and relative to each other, the drawing punch being so provided as to move into or cut of the holder member in concentric with the holder member and the drawing die, wherein at least either one of the annular holder member or the drawing die that had been pushing a residual flange portion is so moved as to discontinue the pushing just before the draw forming is finished in said drawing step, and the flange portion is drawn while liberating the rear end of the flange portion. This makes it possible to eliminate the defects inherent in the conventional draw-forming method or the draw/redraw-forming method, and to draw-form a metal sheet having an organic film into a flangeless cup without developing pinching, film hair or enamel hair at the upper portion of the cup, without causing the can barrel or the organic film to be broken during the drawing, and without permitting the tools that are used to be worn out or damaged, but maintaining excellent operation efficiency.

    摘要翻译： 一种拉伸成形方法，其中具有有机膜或由具有有机膜的金属片制成的杯状的盘状金属片由环形夹持构件和拉伸模具保持，并且拉拔冲头和拉拔模具 彼此相对移动并且相对于彼此移动，所述拉伸冲头被设置成与保持器构件和拉伸模具同心地移动进入或切割保持器构件，其中环形保持器构件中的至少一个或 推动残留凸缘部分的拉伸模具被移动，以在拉拔步骤结束之前中止推动，并且在释放凸缘部分的后端的同时拉出凸缘部分。 这使得可以消除传统的拉伸成形方法或拉伸/再拉伸成形方法中固有的缺陷，并且可以将无机膜的金属板拉伸成无凸缘的杯状物，而不会产生夹持，薄膜毛发或搪瓷毛发 在杯子的上部，不会在拉拔期间导致罐筒或有机膜破裂，并且不允许使用过的工具被磨损或损坏，而是保持优异的操作效率。

    LAMINATED INDUCTOR, METHOD FOR MANUFACTURING THE LAMINATED INDUCTOR, AND LAMINATED CHOKE COIL
    7.
    发明申请
    LAMINATED INDUCTOR, METHOD FOR MANUFACTURING THE LAMINATED INDUCTOR, AND LAMINATED CHOKE COIL 有权
    层压电感器，制造层压电感器的方法和层压式线圈

    公开(公告)号：US20110133881A1

    公开(公告)日：2011-06-09

    申请号：US13055911

    申请日：2009-07-30

    申请人： Takashi Nakajima ,  Yoshiaki Kamiyama ,  Kenji Okabe ,  Yukihiro Noro ,  Tomomi Kobayashi ,  Yoshie Amamiya

    发明人： Takashi Nakajima ,  Yoshiaki Kamiyama ,  Kenji Okabe ,  Yukihiro Noro ,  Tomomi Kobayashi ,  Yoshie Amamiya

    IPC分类号： H01F5/00 ,  B05D5/12

    CPC分类号： H01F17/0013 ,  H01F3/14 ,  H01F17/04 ,  H01F41/046

    摘要： Disclosed is a laminated inductor that has good direct current superimposition characteristics, does not cause a variation in temperature characteristics, suppresses the occurrence of delamination, and can be stably manufactured. Also disclosed are a method for manufacturing the laminated inductor and a laminated choke coil. A laminated inductor (10) for use as a choke coil in a power supply circuit includes a rectangular parallelepiped-shaped laminated chip (1) and at least one pair of external electrodes (8) that are provided at the end of the laminated chip (1) and are conductively connected to the end of a coil. The laminated chip (1) includes a plurality of magnetic material layers (3) formed of an Ni—Zn—Cu ferrite, a plurality of conductive layers (2), which are laminated through the magnetic material layers (3) to constitute a coil, and at least one nonmagnetic layer (4) formed of a Ti—Ni—Cu—Mn—Zr—Ag-base dielectric material and formed in contact with a plurality of the magnetic material layers (3).

    摘要翻译： 公开了具有良好的直流叠加特性的层叠电感器，不会引起温度特性的变化，抑制分层的发生，能够稳定地制造。 还公开了一种用于制造层叠电感器和层叠扼流线圈的方法。 在电源电路中用作扼流线圈的层叠电感器（10）包括：长方体形叠层片（1）和设置在层叠芯片的端部的至少一对外电极（8） 1）并且导电地连接到线圈的端部。 层叠芯片（1）包括由Ni-Zn-Cu铁氧体形成的多个磁性材料层（3），多个导电层（2），其通过磁性材料层（3）层叠以构成线圈 和由Ti-Ni-Cu-Mn-Zr-Ag基介电材料形成并与多个磁性材料层（3）接触形成的至少一个非磁性层（4）。

    Method for forming barrel for two-piece can
    9.
    发明授权
    Method for forming barrel for two-piece can 失效
    用于形成双层罐的方法

    公开(公告)号：US5111679A

    公开(公告)日：1992-05-12

    申请号：US544725

    申请日：1990-06-27

    申请人： Tomomi Kobayashi ,  Akira Kobayashi ,  Hiroshi Fujimoto ,  Norihiko Saiki ,  Katsuhiro Imazu

    发明人： Tomomi Kobayashi ,  Akira Kobayashi ,  Hiroshi Fujimoto ,  Norihiko Saiki ,  Katsuhiro Imazu

    IPC分类号： B21D22/30 ,  B21D51/26

    CPC分类号： B21D51/26 ,  B21D22/30 ,  B65D1/165

    摘要： In a method for forming a barrel for a two-piece can, before the step of draw-forming the bottom, a taper portion having an inner diameter gradually decreasing toward the bottom surface is formed on a lower part of the side wall of a flat-bottom barrel, corresponding to the outer circumferential frustoconical portion of the bottom of the final barrel or an upper portion contiguous to the outer circumferential portion, and at the step of draw-forming the bottom, at least an upper part of the taper portion is outwardly expanded by insertion of the cylindrical punch. According to this method, a two-piece can having a bottom having a good appearance, a high pressure-resistant strength and an excellent corrosion resistance can be prepared at a high productivity and with a good operation adaptability.

    摘要翻译： 在形成两件式罐的桶的方法中，在拉伸成形底部的步骤之前，在平坦的侧壁的下部形成有朝向底面逐渐减小的内径的锥形部 对应于最终筒的底部的外周截头圆锥部分或与外周部分相邻的上部，并且在拉伸成形底部的步骤中，锥形部分的至少上部是 通过插入圆柱形冲头而向外膨胀。 根据该方法，可以以高生产率和良好的操作适应性制备具有外观良好，耐压强度高，耐腐蚀性优异的底部的两件式罐。

    Redrawing method and drawn-redrawn can
    10.
    发明授权
    Redrawing method and drawn-redrawn can 失效
    重绘方法和绘制重绘可以

    公开(公告)号：US4984708A

    公开(公告)日：1991-01-15

    申请号：US527469

    申请日：1990-05-23

    申请人： Katsuhiro Imazu ,  Tomomi Kobayashi ,  Masao Ishinabe ,  Hisao Iwamoto

    发明人： Katsuhiro Imazu ,  Tomomi Kobayashi ,  Masao Ishinabe ,  Hisao Iwamoto

    IPC分类号： B21D22/20 ,  B21D22/28

    CPC分类号： B21D22/201 ,  B21D22/28

    摘要： The present invention provides a redrawing method which comprises holding a preliminarily drawn cup of a covered metal sheet by an annular holding member inserted in the cup and a redrawing die, and relatively moving the redrawing die and a redrawing punch arranged coaxially with the holding member and redrawing cup, said drawing punch being capable of going into the holding member and coming out from the holding member, so that the redrawing die and redrawing punch are engaged with each other, to form a deep-drawn cup having a diameter smaller than that of the preliminarily drawn cup. This redrawing method is prominently characterized in that the radius of curvature of the operating corner portion of the redrawing die is 1 to 2.9 times as large as the bare sheet thickness of the metal sheet. According to this redrawing method, the thickness is effectively reduced by bending and elongating of the side wall, and the variation of the thickness between the upper and lower portions of the side wall is eliminated and the thickness is uniformly reduced as a whole.