TREA

Hideki Yazawa

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary compressor and blade tip structure
    • Patent number 5,494,423
    • Issue date Feb 27, 1996
    • Hitachi, Ltd.
    • Akihiko Ishiyama
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Iron-base alloy for rotary type compressors
    • Patent number 5,423,664
    • Issue date Jun 13, 1995
    • Hitachi, Ltd.
    • Tadashi Iizuka
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES