TREA

Ryojiro Akiba

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Liquid oxidizer immersion type hybrid rocket
    • Patent number 5,694,769
    • Issue date Dec 9, 1997
    • The Director-General of The Institute of Space and Astronautical Science
    • Ryojiro Akiba
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Heater for a stirling engine
    • Patent number 4,894,989
    • Issue date Jan 23, 1990
    • Aisin Seiki Kabushiki Kaisha
    • Tomokimi Mizuno
    • F24 - HEATING RANGES VENTILATING