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Masao SAKAI

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Patents Grantslast 30 patents

  • Information Patent Grant

    Chuck device
    • Patent number 12,296,394
    • Issue date May 13, 2025
    • Citizen Watch Co., Ltd.
    • Sakae Nakazawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    CHUCK DEVICE
    • Publication number 20220355390
    • Publication date Nov 10, 2022
    • Citizen Watch Co., Ltd.
    • Sakae NAKAZAWA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR