TREA

Yasuji Sakuma

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  • Shimizu, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air conditioner
    • Patent number 5,956,962
    • Issue date Sep 28, 1999
    • Hitachi, Ltd.
    • Hiroshi Takenaka
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Air conditioner
    • Patent number 5,689,965
    • Issue date Nov 25, 1997
    • Hitachi, Ltd.
    • Hiroshi Takenaka
    • F24 - HEATING RANGES VENTILATING