TREA

Hiroyuki Isobe

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  • Tsuchiura-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Construction machine
    • Patent number 12,123,169
    • Issue date Oct 22, 2024
    • Hitachi Construction Machinery Co., Ltd.
    • Shigeru Hirasawa
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Cover for construction machine
    • Patent number D678918
    • Issue date Mar 26, 2013
    • Hitachi Construction Machinery Co., Ltd.
    • Shigehisa Hagura
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Hydraulic excavator
    • Patent number D678354
    • Issue date Mar 19, 2013
    • Hitachi Construction Machinery Co., Ltd.
    • Kazuhiko Hiraoka
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Counterweight for construction machine
    • Patent number D678358
    • Issue date Mar 19, 2013
    • Hitachi Construction Machinery Co., Ltd.
    • Kazuhiko Hiraoka
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Hydraulic excavator
    • Patent number D677703
    • Issue date Mar 12, 2013
    • Hitachi Construction Machinery Co., Ltd.
    • Kazuhiko Hiraoka
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Installation structure for dustproof net
    • Patent number 8,317,889
    • Issue date Nov 27, 2012
    • Hitachi Construction Machinery Co., Ltd.
    • Tamio Kobayashi
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Engine cover for construction machine
    • Patent number D660323
    • Issue date May 22, 2012
    • Hitachi Construction Machinery Co., Ltd.
    • Kazuhiko Hiraoka
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Hydraulic excavator
    • Patent number D658211
    • Issue date Apr 24, 2012
    • Hitachi Construction Machinery Co., Ltd.
    • Kazuhiko Hiraoka
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Engine cover for construction machine
    • Patent number D655320
    • Issue date Mar 6, 2012
    • Hitachi Construction Machinery Co., Ltd.
    • Kazuhiko Hiraoka
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Rotation mechanism for construction machine and method of measuring...
    • Patent number 7,832,301
    • Issue date Nov 16, 2010
    • Hitachi Construction Machinery Co., Ltd.
    • Akiyasu Nozue
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Revolving-frame structure of construction machinery
    • Patent number 7,556,469
    • Issue date Jul 7, 2009
    • Hitachi Construction Machinery Co., Ltd.
    • Nozomu Tanaka
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Construction Machine
    • Publication number 20230038839
    • Publication date Feb 9, 2023
    • Hitachi Construction Machinery Co., Ltd.
    • Shigeru HIRASAWA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Installation Structure for Dustproof Net
    • Publication number 20110023426
    • Publication date Feb 3, 2011
    • Hitachi Construction Machinery Co., Ltd.
    • Tamio KOBAYASHI
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Rotation mechanism for construction machine and method of measuring...
    • Publication number 20070034033
    • Publication date Feb 15, 2007
    • Hitachi Construction Machinery Co., Ltd.
    • Akiyasu Nozue
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Revoling-frame structure of construction machinery
    • Publication number 20060285963
    • Publication date Dec 21, 2006
    • Hitachi Construction Machinery Co. Ltd.
    • Nozomu Tanaka
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING