TREA

Takanobu FUJIWARA

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Directional coupler and semiconductor chip
    • Patent number 11,929,539
    • Issue date Mar 12, 2024
    • Mitsubishi Electric Corporation
    • Takanobu Fujiwara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Mixer
    • Patent number 11,463,047
    • Issue date Oct 4, 2022
    • Mitsubishi Electric Corporation
    • Shinya Yokomizo
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    High-frequency switch
    • Patent number 11,088,685
    • Issue date Aug 10, 2021
    • Mitsubishi Electric Corporation
    • Takanobu Fujiwara
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Variable gain amplifier
    • Patent number 10,581,395
    • Issue date Mar 3, 2020
    • Mitsubishi Electric Corporation
    • Koji Tsutsumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Phase shift precision calibration circuitry, vector sum phase shift...
    • Patent number 10,530,338
    • Issue date Jan 7, 2020
    • Mitsubishi Electric Corporation
    • Takaya Maruyama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Polyphase filter and filter circuit
    • Patent number 10,425,062
    • Issue date Sep 24, 2019
    • Mitsubishi Electric Corporation
    • Atsushi Kato
    • H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

  • Information Patent Application

    MIXER
    • Publication number 20210399686
    • Publication date Dec 23, 2021
    • Mitsubishi Electric Corporation
    • Shinya YOKOMIZO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    DIRECTIONAL COUPLER AND SEMICONDUCTOR CHIP
    • Publication number 20210344095
    • Publication date Nov 4, 2021
    • Mitsubishi Electric Corporation
    • Takanobu FUJIWARA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    HIGH-FREQUENCY SWITCH
    • Publication number 20210175882
    • Publication date Jun 10, 2021
    • Mitsubishi Electric Corporation
    • Takanobu FUJIWARA
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    VARIABLE GAIN AMPLIFIER
    • Publication number 20190089318
    • Publication date Mar 21, 2019
    • Mitsubishi Electric Corporation
    • Koji TSUTSUMI
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    POLYPHASE FILTER AND FILTER CIRCUIT
    • Publication number 20190013794
    • Publication date Jan 10, 2019
    • Mitsubishi Electric Corporation
    • Atsushi KATO
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    PHASE SHIFT PRECISION CALIBRATION CIRCUITRY, VECTOR SUM PHASE SHIFT...
    • Publication number 20180323771
    • Publication date Nov 8, 2018
    • Mitsubishi Electric Corporation
    • Takaya MARUYAMA
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    CASCODE AMPLIFIER
    • Publication number 20150340997
    • Publication date Nov 26, 2015
    • Mitsubishi Electric Corporation
    • Katsuya KATO
    • H03 - BASIC ELECTRONIC CIRCUITRY