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Tomotsugu Aoyama

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Copper alloy plate and method for producing same
    • Patent number 12,049,690
    • Issue date Jul 30, 2024
    • Dowa Metaltech Co., Ltd.
    • Kazuki Yoshida
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Clad material and method for producing same
    • Patent number 11,876,030
    • Issue date Jan 16, 2024
    • Dowa Holdings Co., Ltd.
    • Tomotsugu Aoyama
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Sheet matertal of copper alloy and method for producing same
    • Patent number 11,293,084
    • Issue date Apr 5, 2022
    • Dowa Metaltech Co., Ltd.
    • Naota Higami
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Heat sink plate
    • Patent number 11,285,701
    • Issue date Mar 29, 2022
    • THEGOODSYSTEM CORP.
    • Meoung-whan Cho
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Copper alloy sheet material and current-carrying component
    • Patent number 10,844,468
    • Issue date Nov 24, 2020
    • Dowa Metaltech Co., Ltd.
    • Kuniaki Miyagi
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Copper alloy sheet material
    • Patent number 10,745,787
    • Issue date Aug 18, 2020
    • Dowa Metaltech Co., Ltd.
    • Tsuyoshi Ito
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Heat radiating plate and method for producing same
    • Patent number 10,180,293
    • Issue date Jan 15, 2019
    • Dowa Metaltech Co., Ltd.
    • Tomotsugu Aoyama
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Copper alloy sheet and method for producing same
    • Patent number 9,994,933
    • Issue date Jun 12, 2018
    • DOWA METAL TECH CO., LTD.
    • Weilin Gao
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Copper alloy sheet and method for producing same
    • Patent number 9,284,628
    • Issue date Mar 15, 2016
    • Dowa Metaltech Co., Ltd.
    • Tomotsugu Aoyama
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents