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Keiichi KUMAGAWA

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  • Hyogo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Evacuation guidance system
    • Patent number 11,854,374
    • Issue date Dec 26, 2023
    • KUMAGAWA CO,. LTD.
    • Keiichi Kumagawa
    • G08 - SIGNALLING
  • Information Patent Grant

    Baggage keeping system
    • Patent number 11,720,762
    • Issue date Aug 8, 2023
    • KUMAGAWA CO., LTD.
    • Keiichi Kumagawa
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

  • Information Patent Application

    EVACUATION GUIDANCE SYSTEM
    • Publication number 20230052031
    • Publication date Feb 16, 2023
    • KUMAGAWA CO,. LTD.
    • Keiichi KUMAGAWA
    • G08 - SIGNALLING
  • Information Patent Application

    BAGGAGE KEEPING SYSTEM
    • Publication number 20220414358
    • Publication date Dec 29, 2022
    • KUMAGAWA CO., LTD.
    • Keiichi KUMAGAWA
    • G06 - COMPUTING CALCULATING COUNTING