TREA

The Nippon Road Co., Ltd.

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of preventing warp of a skid panel
    • Patent number 6,358,444
    • Issue date Mar 19, 2002
    • Nippon High Strength Concrete Co., Ltd.
    • Takashi Ishikawa
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Pavement for automobile test course
    • Patent number 6,102,614
    • Issue date Aug 15, 2000
    • The Nippon Road Company Limited
    • Wataru Yukawa
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Control device for asphalt finisher
    • Patent number 5,484,227
    • Issue date Jan 16, 1996
    • Niigata Engineering Co., Ltd.
    • Hachiro Ikeda
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

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