TREA

Keiji Takeda

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    R-T-B-based magnet, motor, and generator
    • Patent number 11,837,915
    • Issue date Dec 5, 2023
    • TDK Corporation
    • Tomohiro Kajita
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    R-T-B based rare earth permanent magnet
    • Patent number 11,798,717
    • Issue date Oct 24, 2023
    • TDK Corporation
    • Keiji Takeda
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    R-T-B based permanent magnet
    • Patent number 11,120,931
    • Issue date Sep 14, 2021
    • TDK Corporation
    • Shota Miyazaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    R-T-B based permanent magnet
    • Patent number 10,784,029
    • Issue date Sep 22, 2020
    • TDK Corporation
    • Keiji Takeda
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    R-T-B based rare earth permanent magnet
    • Patent number 10,614,937
    • Issue date Apr 7, 2020
    • TDK Corporation
    • Shota Miyazaki
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    R-T-B based rare earth permanent magnet
    • Patent number 10,566,117
    • Issue date Feb 18, 2020
    • TDK Corporation
    • Keiji Takeda
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Rare-earth permanent magnet
    • Patent number 10,529,474
    • Issue date Jan 7, 2020
    • TDK Corporation
    • Shogo Kadota
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Operating device
    • Patent number 7,436,398
    • Issue date Oct 14, 2008
    • Honda Motor Co., Ltd.
    • Go Yuasa
    • B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    R-T-B-BASED MAGNET, MOTOR, AND GENERATOR
    • Publication number 20210242727
    • Publication date Aug 5, 2021
    • TDK Corporation
    • Tomohiro KAJITA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    R-T-B BASED RARE EARTH PERMANENT MAGNET
    • Publication number 20210043343
    • Publication date Feb 11, 2021
    • TDK Corporation
    • Keiji TAKEDA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    R-T-B BASED PERMANENT MAGNET
    • Publication number 20180294080
    • Publication date Oct 11, 2018
    • TDK Corporation
    • Shota MIYAZAKI
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B BASED PERMANENT MAGNET
    • Publication number 20180294079
    • Publication date Oct 11, 2018
    • TDK Corporation
    • Keiji TAKEDA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B BASED RARE EARTH PERMANENT MAGNET
    • Publication number 20180040400
    • Publication date Feb 8, 2018
    • TDK Corporation
    • Keiji TAKEDA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B BASED RARE EARTH PERMANENT MAGNET
    • Publication number 20180040399
    • Publication date Feb 8, 2018
    • TDK Corporation
    • Shota MIYAZAKI
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    RARE-EARTH PERMANENT MAGNET
    • Publication number 20170047151
    • Publication date Feb 16, 2017
    • TDK Corporation
    • Shogo KADOTA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    Operating device
    • Publication number 20040189595
    • Publication date Sep 30, 2004
    • HONDA MOTOR CO., LTD.
    • Go Yuasa
    • B60 - VEHICLES IN GENERAL