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Kiyofumi Fujiwara

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Coil device
    • Patent number 12,119,154
    • Issue date Oct 15, 2024
    • TDK Corporation
    • Kiyofumi Fujiwara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Coil device
    • Patent number 12,106,888
    • Issue date Oct 1, 2024
    • TDK Corporation
    • Hiroyuki Iwata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Coil component
    • Patent number D1032528
    • Issue date Jun 25, 2024
    • TDK Corporation
    • Kiyofumi Fujiwara
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Coil component and power-supply device provided therewith
    • Patent number 8,058,963
    • Issue date Nov 15, 2011
    • TDK Corporation
    • Katsuharu Yasuda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    COIL DEVICE AND ELECTRONIC CIRCUIT
    • Publication number 20240234002
    • Publication date Jul 11, 2024
    • TDK Corporation
    • Riku UMEKI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE AND ELECTRONIC CIRCUIT
    • Publication number 20240136101
    • Publication date Apr 25, 2024
    • TDK Corporation
    • Riku UMEKI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20230253143
    • Publication date Aug 10, 2023
    • TDK Corporation
    • Kiyofumi FUJIWARA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20220406514
    • Publication date Dec 22, 2022
    • TDK Corporation
    • Hiroyuki IWATA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20210304943
    • Publication date Sep 30, 2021
    • TDK Corporation
    • Kiyofumi FUJIWARA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20210225580
    • Publication date Jul 22, 2021
    • TDK Corporation
    • Hiroyuki IWATA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL DEVICE
    • Publication number 20180286553
    • Publication date Oct 4, 2018
    • TDK Corporation
    • Tsutomu KOBAYASHI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL COMPONENT AND POWER-SUPPLY DEVICE PROVIDED THEREWITH
    • Publication number 20100176909
    • Publication date Jul 15, 2010
    • Katsuharu YASUDA
    • H01 - BASIC ELECTRIC ELEMENTS