TREA

Tetsuya Nakajima

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  • Utsunomiya-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Steel wire and tire
    • Patent number 12,209,362
    • Issue date Jan 28, 2025
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya Nakajima
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Steel wire and spring
    • Patent number 12,091,734
    • Issue date Sep 17, 2024
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya Nakajima
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Spring steel wire
    • Patent number 11,807,923
    • Issue date Nov 7, 2023
    • Sumitomo Electric Industries, Ltd.
    • Hiromu Izumida
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Steel cord and method for producing the same
    • Patent number 10,914,015
    • Issue date Feb 9, 2021
    • Sumitomo Electric Tochigi Co., Ltd.
    • Tetsuya Nakajima
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Tire
    • Patent number 10,632,791
    • Issue date Apr 28, 2020
    • Sumitomo Electric Tochigi Co., Ltd.
    • Tetsuya Nakajima
    • B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    STEEL WIRE
    • Publication number 20250092495
    • Publication date Mar 20, 2025
    • Sumitomo Electric Industries, Ltd.
    • Kei HIRAI
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    STEEL WIRE FOR SPRINGS
    • Publication number 20240344186
    • Publication date Oct 17, 2024
    • Sumitomo Electric Industries, Ltd.
    • Hiromu IZUMIDA
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    STEEL WIRE AND TIRE
    • Publication number 20230374729
    • Publication date Nov 23, 2023
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya NAKAJIMA
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    STEEL WIRE AND SPRING
    • Publication number 20220307115
    • Publication date Sep 29, 2022
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya NAKAJIMA
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    SPRING STEEL WIRE
    • Publication number 20220186349
    • Publication date Jun 16, 2022
    • Sumitomo Electric Industries, Ltd.
    • Hiromu IZUMIDA
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    TIRE
    • Publication number 20200338928
    • Publication date Oct 29, 2020
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya NAKAJIMA
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    TIRE
    • Publication number 20180304689
    • Publication date Oct 25, 2018
    • Sumitomo Electric Tochigi Co., Ltd.
    • Tetsuya Nakajima
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    STEEL CORD AND METHOD FOR PRODUCING THE SAME
    • Publication number 20180266000
    • Publication date Sep 20, 2018
    • Sumitomo Electric Tochigi Co., Ltd.
    • Tetsuya Nakajima
    • B60 - VEHICLES IN GENERAL