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Akira Hirasawa

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  • Kawasaki-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Light emitting device
    • Patent number 11,943,948
    • Issue date Mar 26, 2024
    • Pioneer Corporation
    • Akira Hirasawa
  • Information Patent Grant

    Light-emitting device
    • Patent number 11,411,194
    • Issue date Aug 9, 2022
    • Pioneer Corporation
    • Ayako Yoshida
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Light-emitting device
    • Patent number 10,727,449
    • Issue date Jul 28, 2020
    • PIONEER CORPORATION
    • Akira Hirasawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Lighting apparatus and light emission control method
    • Patent number 9,338,855
    • Issue date May 10, 2016
    • PIONEER CORPORATION
    • Akira Hirasawa
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents