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Naoya Wada

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  • Kyoto-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spiral spring
    • Patent number 9,400,026
    • Issue date Jul 26, 2016
    • Suncall Corporation
    • Ryuji Kishihara
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    SPIRAL SPRING MANUFACTURING METHOD
    • Publication number 20160167106
    • Publication date Jun 16, 2016
    • Suncall Corporation
    • Ryuji KISHIHARA
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    SPIRAL SPRING
    • Publication number 20150292585
    • Publication date Oct 15, 2015
    • SUNCALL CORPORATION
    • Ryuji Kishihara
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...