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Takuya Oka

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Audio amplifier and audio power amplifier
    • Patent number 10,243,516
    • Issue date Mar 26, 2019
    • Onkyo Corporation
    • Tsuyoshi Kawaguchi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Protection circuit
    • Patent number 9,866,009
    • Issue date Jan 9, 2018
    • ONKYO & PIONEER TECHNOLOGY CORPORATION
    • Takuya Oka
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Contactless data carrier
    • Patent number 6,772,953
    • Issue date Aug 10, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Keiichi Iiyama
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

  • Information Patent Application

    AUDIO AMPLIFIER AND AUDIO POWER AMPLIFIER
    • Publication number 20180241348
    • Publication date Aug 23, 2018
    • Onkyo Corporation
    • Tsuyoshi KAWAGUCHI
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    PROTECTION CIRCUIT
    • Publication number 20160064919
    • Publication date Mar 3, 2016
    • Onkyo & Pioneer Technology Corporation
    • Takuya OKA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Contactless data carrier
    • Publication number 20020017569
    • Publication date Feb 14, 2002
    • Keiichi Iiyama
    • G06 - COMPUTING CALCULATING COUNTING