TREA

Hirotaka Koga

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  • Shizuoka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Audio mixer
    • Patent number D1038079
    • Issue date Aug 6, 2024
    • Roland Corporation
    • Masakazu Watanabe
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Audio mixer
    • Patent number D1038080
    • Issue date Aug 6, 2024
    • Roland Corporation
    • Masakazu Watanabe
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Electronic musical instrument
    • Patent number D999817
    • Issue date Sep 26, 2023
    • Roland Corporation
    • Shuichi Matsunaga
    • D17 - Musical instruments