TREA

Hiroshi Okada

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Crusher
    • Patent number 6,015,108
    • Issue date Jan 18, 2000
    • Nippon Pneumatic Manufacturing Co., Ltd.
    • Takashi Okumura
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Method of manufacturing chisel for impact tool
    • Patent number 5,621,962
    • Issue date Apr 22, 1997
    • Nippon Pneumatic Manufacturing Co., Ltd.
    • Hiroshi Okada
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Device for supporting impact tool
    • Patent number 5,285,858
    • Issue date Feb 15, 1994
    • Nippon Pneumatic Manufacturing Co., Ltd.
    • Hiroshi Okada
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic impact tool
    • Patent number 4,852,664
    • Issue date Aug 1, 1989
    • Nippon Pneumatic Manufacturing Co., Ltd.
    • Hiromu Terada
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Impact tool
    • Patent number 4,181,183
    • Issue date Jan 1, 1980
    • Nippon Pneumatic Manufacturing Co., Ltd.
    • Hiroshi Okada
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS