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Mechanically spring-loaded blank holders

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  • CPC
  • B21D24/06
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BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING METAL B21D24/00Special deep-drawing arrangements in, or in connection with, presses

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B21D24/06Mechanically spring-loaded blank holders
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Formed article, structural member using the same, and manufacturing...
    • Patent number 12,084,115
    • Issue date Sep 10, 2024
    • Nippon Steel Corporation
    • Kenichiro Otsuka
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method for producing press-formed product
    • Patent number 11,358,203
    • Issue date Jun 14, 2022
    • Nippon Steel Corporation
    • Junki Natori
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Sliding frictional force generation mechanism by fitting and die cu...
    • Patent number 10,974,303
    • Issue date Apr 13, 2021
    • Aida Engineering, Ltd.
    • Takao Ito
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of manufacturing molded material, and said molded material
    • Patent number 10,786,843
    • Issue date Sep 29, 2020
    • Nisshin Steel Co., Ltd.
    • Naofumi Nakamura
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Producing method, producing apparatus and producing equipment line...
    • Patent number 10,596,613
    • Issue date Mar 24, 2020
    • Nippon Steel Corporation
    • Ryuichi Nishimura
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Pressed component manufacturing method, press, and press line
    • Patent number 10,471,493
    • Issue date Nov 12, 2019
    • Nippon Steel Corporation
    • Toshiya Suzuki
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Press apparatus
    • Patent number 10,350,663
    • Issue date Jul 16, 2019
    • Keylex Corporation
    • Tsuyoshi Itaoka
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Deep-drawing method and forming die therefor
    • Patent number 10,160,024
    • Issue date Dec 25, 2018
    • Toyo Seikan Group Holdings, Ltd.
    • Hidekazu Tomaru
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Press-formed product
    • Patent number 9,718,113
    • Issue date Aug 1, 2017
    • Nippon Steel & Sumitomo Metal Corporation
    • Masahiro Nakata
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Formed material manufacturing method and formed material
    • Patent number 9,669,440
    • Issue date Jun 6, 2017
    • Nisshin Steel Co., Ltd.
    • Naofumi Nakamura
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Load-applying device, press-forming die, and press-forming method
    • Patent number 9,481,021
    • Issue date Nov 1, 2016
    • NIPPON STEEL & SUMITOMO METAL CORPORATION
    • Tohru Yoshida
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of manufacturing formed articles, equipment for practicing s...
    • Patent number 4,365,498
    • Issue date Dec 28, 1982
    • Toyo Seikan Kaisha, Limited
    • Kazumi Hirota
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of manufacturing formed articles, equipment for practicing s...
    • Patent number 4,365,499
    • Issue date Dec 28, 1982
    • Toyo Seikan Kaisha, Limited
    • Kazumi Hirota
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Drawing apparatus
    • Patent number 4,361,020
    • Issue date Nov 30, 1982
    • Toyo Seikan Kaisha, Limited
    • Kazumi Hirota
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of manufacturing low-rigid, wrinkle-free articles
    • Patent number 4,225,553
    • Issue date Sep 30, 1980
    • Toyo Seikan Kaisha, Limited
    • Kazumi Hirota
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    2843071
    • Patent number 2,843,071
    • Issue date Jul 15, 1958
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2615412
    • Patent number 2,615,412
    • Issue date Oct 28, 1952
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2263904
    • Patent number 2,263,904
    • Issue date Nov 25, 1941
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2174970
    • Patent number 2,174,970
    • Issue date Oct 3, 1939
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2154983
    • Patent number 2,154,983
    • Issue date Apr 18, 1939
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2145125
    • Patent number 2,145,125
    • Issue date Jan 24, 1939
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2084456
    • Patent number 2,084,456
    • Issue date Jun 22, 1937
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1846610
    • Patent number 1,846,610
    • Issue date Feb 23, 1932
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1828201
    • Patent number 1,828,201
    • Issue date Oct 20, 1931
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1822906
    • Patent number 1,822,906
    • Issue date Sep 15, 1931
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1776919
    • Patent number 1,776,919
    • Issue date Sep 30, 1930
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1691496
    • Patent number 1,691,496
    • Issue date Nov 13, 1928
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1671365
    • Patent number 1,671,365
    • Issue date May 29, 1928
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1550580
    • Patent number 1,550,580
    • Issue date Aug 18, 1925
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1544594
    • Patent number 1,544,594
    • Issue date Jul 7, 1925
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents