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Yoshiji Tutikawa

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bolt employing shearing stress for self-locking
    • Patent number 6,592,312
    • Issue date Jul 15, 2003
    • Yoshiji Tutikawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Washer having an inclined profile
    • Patent number 6,146,074
    • Issue date Nov 14, 2000
    • Daiyasu Metal Industry Co., Ltd.
    • Yoshiji Tutikawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Apparatus for automatically closing a swing door
    • Patent number 5,956,806
    • Issue date Sep 28, 1999
    • Daiyasu Metal Industry Co., Ltd.
    • Yoshiji Tutikawa
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Device for supporting folding doors
    • Patent number 5,085,262
    • Issue date Feb 4, 1992
    • Daiyusu Kinzoku Co., Ltd.
    • Yoshiji Tutikawa
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Hinge with spaced apart hinge members
    • Patent number 5,070,578
    • Issue date Dec 10, 1991
    • Yoshiji Tutikawa
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES