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Ryo-ma Yamaguma

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  • Niihama-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for producing nickel powder
    • Patent number 10,518,332
    • Issue date Dec 31, 2019
    • Sumitomo Metal Mining Co., Ltd.
    • Kazuyuki Takaishi
    • B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

  • Information Patent Application

    NICKEL POWDER MANUFACTURING METHOD
    • Publication number 20200384542
    • Publication date Dec 10, 2020
    • Sumitomo Metal Mining Co., Ltd.
    • Kazuyuki Takaishi
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    METHOD FOR PRODUCING NICKEL POWDER
    • Publication number 20190210114
    • Publication date Jul 11, 2019
    • Sumitomo Metal Mining Co., Ltd.
    • Kazuyuki Takaishi
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    METHOD FOR PRODUCING SEED CRYSTAL OF COBALT POWDER
    • Publication number 20190061006
    • Publication date Feb 28, 2019
    • Sumitomo Metal Mining Co., Ltd.
    • Osamu Ikeda
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    METHOD FOR PRODUCING NICKEL POWDER
    • Publication number 20190009343
    • Publication date Jan 10, 2019
    • Sumitomo Metal Mining Co., Ltd.
    • Shin-ichi Heguri
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    METHOD FOR PRODUCING COBALT POWDER
    • Publication number 20180169764
    • Publication date Jun 21, 2018
    • Sumitomo Metal Mining Co., Ltd.
    • Ryo-ma Yamaguma
    • B22 - CASTING POWDER METALLURGY