TREA

Tomoyuki Sato

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  • Tsuchiura, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Scroll compressor with oiling mechanism
    • Patent number 5,947,709
    • Issue date Sep 7, 1999
    • Hitachi, Ltd.
    • Masaki Koyama
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Scroll compressor with oiling mechanism
    • Patent number 5,716,202
    • Issue date Feb 10, 1998
    • Hitachi, Ltd.
    • Masaki Koyama
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES