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Yasuo Sugihara

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  • Yokkaichi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cleaning fluid for semiconductor substrate
    • Patent number 5,705,089
    • Issue date Jan 6, 1998
    • Mitsubishi Gas Chemical Company, Inc.
    • Yasuo Sugihara
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Grant

    Process for purification of hydrogen peroxide
    • Patent number 5,614,165
    • Issue date Mar 25, 1997
    • Mitsubishi Gas Chemical Co., Inc.
    • Yasuo Sugihara
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Food-preserving agent
    • Patent number 5,328,894
    • Issue date Jul 12, 1994
    • Mitsubishi Gas Chemical Company, Inc.
    • Hidechika Wakabayashi
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    Cleaning solution of semiconductor substrate
    • Patent number 5,302,311
    • Issue date Apr 12, 1994
    • Mitsubishi Gas Chemical Company, Inc.
    • Yasuo Sugihara
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Oxygen absorbent
    • Patent number 5,180,518
    • Issue date Jan 19, 1993
    • Mitsubishi Gas Chemical Co., Inc.
    • Yasuo Sugihara
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    Oxygen absorbent
    • Patent number 5,102,673
    • Issue date Apr 7, 1992
    • Mitsubishi Gas Chemical Company, Inc.
    • Yasuo Sugihara
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    Method for purifying impure aqueous hydrogen peroxide solution
    • Patent number 4,999,179
    • Issue date Mar 12, 1991
    • Mitsubishi Gas Chemical Company, Inc.
    • Yasuo Sugihara
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Method of removing organic impurities from aqueous solution of hydr...
    • Patent number 4,792,403
    • Issue date Dec 20, 1988
    • Mitsubishi Gas Chemical Company, Inc.
    • Shizuo Togo
    • C01 - INORGANIC CHEMISTRY