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Eiji Egawa

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  • Tsuchiura-shi, Ibaraki-ken, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    WORK MANAGEMENT SYSTEM
    • Publication number 20240193500
    • Publication date Jun 13, 2024
    • Hitachi Construction Machinery Co., Ltd.
    • Tsuyoshi FUJITA
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    WORK MANAGEMENT SYSTEM
    • Publication number 20220172132
    • Publication date Jun 2, 2022
    • Hitachi Construction Machinery Co., Ltd.
    • Tsuyoshi FUJITA
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    SITE MANAGEMENT SYSTEM
    • Publication number 20220051150
    • Publication date Feb 17, 2022
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroshi WATANABE
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    CONSTRUCTION SITE MANAGEMENT DEVICE AND CONSTRUCTION SITE MANAGEMEN...
    • Publication number 20200327464
    • Publication date Oct 15, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Seiya KATO
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Device and Method for Calculating Basic Information for Area Limiti...
    • Publication number 20160002882
    • Publication date Jan 7, 2016
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.
    • Yasuhiko KANARI
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING