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Kazuhisa Fujiwara

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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for winding copper foil on core tube
    • Patent number 6,478,247
    • Issue date Nov 12, 2002
    • Mitsui Mining & Smelting Co., Ltd.
    • Kazuhisa Fujiwara
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Method for winding copper foil on core tube
    • Publication number 20020027179
    • Publication date Mar 7, 2002
    • Kazuhisa Fujiwara
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...