TREA

Katsuro Harada

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  • Tajimi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Roots type pump with pin connection for plastic coated rotor
    • Patent number 4,764,098
    • Issue date Aug 16, 1988
    • Toyota Jidosha Kabushiki Kaisha
    • Takahiro Iwase
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotor assembly of roots pump
    • Patent number 4,747,763
    • Issue date May 31, 1988
    • Toyota Jidosha Kabushiki Kaisha
    • Takuo Sibata
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES