TREA

Hirofumi Sakurai

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Turbo vacuum pump
    • Patent number 5,501,583
    • Issue date Mar 26, 1996
    • Hitachi, Ltd.
    • Takashi Nagaoka
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Turbo vacuum pump
    • Patent number 5,380,171
    • Issue date Jan 10, 1995
    • Hitachi, Ltd.
    • Takashi Nagaoka
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...