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Masaaki Okuyama

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Baseball or softball bat
    • Patent number 6,425,836
    • Issue date Jul 30, 2002
    • Mizuno Corporation
    • Kazunori Misono
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Baseball or softball bat
    • Publication number 20020016230
    • Publication date Feb 7, 2002
    • Masaaki Okuyama
    • A63 - SPORTS GAMES AMUSEMENTS