TREA

Masaru Kumagai

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Transformer and leakage transformer
    • Patent number 10,361,025
    • Issue date Jul 23, 2019
    • TDK Corporation
    • Masaaki Iwakura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Transformer
    • Patent number 9,424,982
    • Issue date Aug 23, 2016
    • TDK Corporation
    • Masaaki Iwakura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Coil unit
    • Patent number 7,573,364
    • Issue date Aug 11, 2009
    • TDK Corporation
    • Hiroshi Suzuki
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    COIL DEVICE
    • Publication number 20240096547
    • Publication date Mar 21, 2024
    • TDK Corporation
    • Tomohiro FURUICHI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20240006117
    • Publication date Jan 4, 2024
    • TDK Corporation
    • Atsushi SHOJI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20230290560
    • Publication date Sep 14, 2023
    • TDK Corporation
    • Masaru KUMAGAI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20230290562
    • Publication date Sep 14, 2023
    • TDK Corporation
    • Masaru KUMAGAI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20220319768
    • Publication date Oct 6, 2022
    • TDK Corporation
    • Hideaki HARATA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20210249180
    • Publication date Aug 12, 2021
    • TDK Corporation
    • Toshiyuki HORIKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    TRANSFORMER AND LEAKAGE TRANSFORMER
    • Publication number 20160329148
    • Publication date Nov 10, 2016
    • TDK Corporation
    • Masaaki IWAKURA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    TRANSFORMER
    • Publication number 20150061808
    • Publication date Mar 5, 2015
    • TDK Corporation
    • Masaaki IWAKURA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Coil unit
    • Publication number 20080143470
    • Publication date Jun 19, 2008
    • TDK Corporation
    • Hiroshi Suzuki
    • H01 - BASIC ELECTRIC ELEMENTS