TREA

Yasuhiko Matsumoto

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Audio appliance for reproducing sounds
    • Patent number D540288
    • Issue date Apr 10, 2007
    • Clarion Co., Ltd.
    • Keiichiro Yoshihara
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Audio appliance for reproducing sounds
    • Patent number D539769
    • Issue date Apr 3, 2007
    • Clarion Co., Ltd.
    • Keiichiro Yoshihara
    • D14 - Recording, communication, or information retrieval equipment