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Nobuo Kitajima

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Patents Grantslast 30 patents

  • Information Patent Grant

    Coil device
    • Patent number 12,165,802
    • Issue date Dec 10, 2024
    • TDK Corporation
    • Kazunori Arimitsu
    • H01 - BASIC ELECTRIC ELEMENTS
  • 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

    Coil device and method for manufacturing the same
    • Patent number 10,096,421
    • Issue date Oct 9, 2018
    • TDK Corporation
    • Masaaki Iwakura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Coil device and method for manufacturing the same
    • Patent number 9,793,044
    • Issue date Oct 17, 2017
    • 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 device
    • Patent number 9,153,371
    • Issue date Oct 6, 2015
    • TDK Corporation
    • Masaaki Iwakura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Coil component
    • Patent number D721651
    • Issue date Jan 27, 2015
    • TDK Corporation
    • Masaaki Iwakura
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Coil component
    • Patent number 8,866,577
    • Issue date Oct 21, 2014
    • TDK Corporation
    • Hiroshi Maeda
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Coil component having wire-support member
    • Patent number 8,253,522
    • Issue date Aug 28, 2012
    • TDK Corporation
    • Katsumi Kobayashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Choke coil for interleaved PFC circuit
    • Patent number 8,217,746
    • Issue date Jul 10, 2012
    • TDK Corporation
    • Nobuo Kitajima
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Core for electronic component
    • Patent number D644175
    • Issue date Aug 30, 2011
    • TDK Corporation
    • Nobuo Kitajima
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Coil component
    • Patent number 7,952,457
    • Issue date May 31, 2011
    • TDK Corporation
    • Kenichi Yamaguchi
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Discharge lamp drive apparatus and liquid crystal display apparatus
    • Patent number 7,205,726
    • Issue date Apr 17, 2007
    • TDK Corporation
    • Hiroshi Maeda
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Switching power supply
    • Patent number 6,188,207
    • Issue date Feb 13, 2001
    • TDK Corporation
    • Nobuo Kitajima
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    COIL DEVICE
    • Publication number 20240282510
    • Publication date Aug 22, 2024
    • TDK Corporation
    • Kazunori ARIMITSU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20240282509
    • Publication date Aug 22, 2024
    • TDK Corporation
    • Kazunori ARIMITSU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL COMPONENT, CORE MEMBER, CORE COMPONENT, AND ELECTRONIC COMPONENT
    • Publication number 20240145151
    • Publication date May 2, 2024
    • TDK Corporation
    • Masayoshi SHIMAZAKI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20230162907
    • Publication date May 25, 2023
    • TDK Corporation
    • Kazunori ARIMITSU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20230162906
    • Publication date May 25, 2023
    • TDK Corporation
    • Kazunori ARIMITSU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SOLDER COMPOSITION AND ELECTRONIC COMPONENT
    • Publication number 20230117965
    • Publication date Apr 20, 2023
    • TDK Corporation
    • Makoto ONO
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    COIL DEVICE
    • Publication number 20220399156
    • Publication date Dec 15, 2022
    • TDK Corporation
    • Kazunori ARIMITSU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20220399157
    • Publication date Dec 15, 2022
    • TDK Corporation
    • Kazunori ARIMITSU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20220020527
    • Publication date Jan 20, 2022
    • TDK Corporation
    • Kazunori ARIMITSU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20220020528
    • Publication date Jan 20, 2022
    • TDK Corporation
    • Kazunori ARIMITSU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE AND METHOD FOR MANUFACTURING THE SAME
    • Publication number 20170352474
    • Publication date Dec 7, 2017
    • TDK Corporation
    • Masaaki IWAKURA
    • 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

    COIL DEVICE AND METHOD FOR MANUFACTURING THE SAME
    • Publication number 20160293317
    • Publication date Oct 6, 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 DEVICE
    • Publication number 20130328654
    • Publication date Dec 12, 2013
    • Masaaki IWAKURA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL COMPONENT
    • Publication number 20120286919
    • Publication date Nov 15, 2012
    • TDK KOREA CORPORATION
    • Hiroshi MAEDA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    TRANSFORMER HAVING SECTIONED BOBBIN
    • Publication number 20110187485
    • Publication date Aug 4, 2011
    • TDK Corporation
    • Terumasa TOYODA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL COMPONENT HAVING WIRE-SUPPORT MEMBER
    • Publication number 20110050378
    • Publication date Mar 3, 2011
    • TDK Corporation
    • Katsumi KOBAYASHI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    CHOKE COIL FOR INTERLEAVED PFC CIRCUIT
    • Publication number 20100271164
    • Publication date Oct 28, 2010
    • TDK Corporation
    • Nobuo Kitajima
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL COMPONENT
    • Publication number 20100156584
    • Publication date Jun 24, 2010
    • TDK Corporation
    • Kenichi Yamaguchi
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Discharge lamp drive apparatus and liquid crystal display apparatus
    • Publication number 20060103329
    • Publication date May 18, 2006
    • TDK Corporation
    • Hiroshi Maeda
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR