TREA

Akira Okada

Follow

Person

  • Tokyo, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Concrete leveling machine
    • Patent number 5,129,803
    • Issue date Jul 14, 1992
    • Shimizu Construction Co., Ltd.
    • Hajime Nomura
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Finishing machine for a concrete surface
    • Patent number 4,848,960
    • Issue date Jul 18, 1989
    • Shimizu Construction Company Limited
    • Yasuo Kajioka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS