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Yoshiyuki Koba

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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for flattening floor
    • Patent number 8,414,220
    • Issue date Apr 9, 2013
    • Josei Techno Co., Ltd.
    • Yoshiyuki Koba
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Floor surface finishing device
    • Patent number 7,524,138
    • Issue date Apr 28, 2009
    • Yugengaisha Josei Kogyo
    • Yoshiyuki Koba
    • E04 - BUILDING

Patents Applicationslast 30 patents