TREA

Yoshiharu Homma

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Refrigeration cycle
    • Patent number 6,258,293
    • Issue date Jul 10, 2001
    • Hitachi, Ltd.
    • Tadashi Iizuka
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Refrigeration cycle
    • Patent number 6,029,459
    • Issue date Feb 29, 2000
    • Hitachi, Ltd.
    • Tadashi Iizuka
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Refrigerant compressor
    • Patent number 5,964,581
    • Issue date Oct 12, 1999
    • Hitachi, Ltd.
    • Tadashi Iizuka
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Refrigerating apparatus and refrigerant compressor
    • Patent number 5,711,165
    • Issue date Jan 27, 1998
    • Hitachi, Ltd.
    • Tadashi Iizuka
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Refrigeration apparatus containing lubricant composition
    • Patent number 5,553,465
    • Issue date Sep 10, 1996
    • Hitachi, Ltd.
    • Katsumi Fukuda
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Lubricant for refrigeration compressors
    • Patent number 5,445,753
    • Issue date Aug 29, 1995
    • Hitachi, Ltd.
    • Katsumi Fukuda
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Lubricant composition, refrigeration apparatus containing same and...
    • Patent number 5,417,872
    • Issue date May 23, 1995
    • Hitachi, Ltd.
    • Katsumi Fukuda
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...