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Yoshinori DOI

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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat-resistant IR alloy
    • Patent number 11,773,473
    • Issue date Oct 3, 2023
    • Ishifuku Metal Industry Co., Ltd.
    • Shunsuke Yokota
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Heat-resistant Ir alloy
    • Patent number 11,131,008
    • Issue date Sep 28, 2021
    • Ishifuku Metal Industry Co., Ltd.
    • Shunsuke Yokota
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method for producing platinum group alloy
    • Patent number 9,737,931
    • Issue date Aug 22, 2017
    • Ishifuku Metal Industry Co., Ltd.
    • Yoshinori Doi
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Spark plug for internal combustion engine of motor vehicles
    • Patent number 9,184,570
    • Issue date Nov 10, 2015
    • Denso Corporation
    • Yuki Murayama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug for internal combustion engine
    • Patent number 9,077,158
    • Issue date Jul 7, 2015
    • Denso Corporation
    • Yuki Murayama
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents