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Hajimu Kawa

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  • Austin, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Perfluoro group-containing compounds and hardened polymer of the same
    • Patent number 6,559,268
    • Issue date May 6, 2003
    • Kyoeisha Chemcial Co., Ltd.
    • Junichi Ikeda
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Method for preparing perfluorocarbon-substituted methanols
    • Patent number 6,479,712
    • Issue date Nov 12, 2002
    • Exfluor Research Corporation
    • Hajimu Kawa
    • C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
  • Information Patent Grant

    Liquid-phase fluorination
    • Patent number 5,753,776
    • Issue date May 19, 1998
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Liquid-phase fluorination
    • Patent number 5,674,949
    • Issue date Oct 7, 1997
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Liquid phase fluorination
    • Patent number 5,571,870
    • Issue date Nov 5, 1996
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorination of acetals, ketals and orthoesters
    • Patent number 5,557,012
    • Issue date Sep 17, 1996
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorination of acetals, ketals and orthoesters
    • Patent number 5,543,567
    • Issue date Aug 6, 1996
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Perfluorinated polyethers
    • Patent number 5,539,059
    • Issue date Jul 23, 1996
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Fluorination of acetals, ketals and orthoesters
    • Patent number 5,523,496
    • Issue date Jun 4, 1996
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Perfluorinates polyethers
    • Patent number 5,506,309
    • Issue date Apr 9, 1996
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Liquid phase fluorination
    • Patent number 5,461,117
    • Issue date Oct 24, 1995
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Method of producing perfluorocarbon halides
    • Patent number 5,455,373
    • Issue date Oct 3, 1995
    • Exfluor Research Corporation
    • Hajimu Kawa
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Liquid-phase fluorination
    • Patent number 5,332,790
    • Issue date Jul 26, 1994
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Liquid-phase fluorination
    • Patent number 5,322,903
    • Issue date Jun 21, 1994
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Liquid-phase fluorination
    • Patent number 5,322,904
    • Issue date Jun 21, 1994
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorination of acetals, ketals and orthoesters
    • Patent number 5,300,683
    • Issue date Apr 5, 1994
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorination of acetals, ketals and orthoesters
    • Patent number 5,202,480
    • Issue date Apr 13, 1993
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Liquid phase fluorination
    • Patent number 5,093,432
    • Issue date Mar 3, 1992
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorination of acetals, ketals and orthoesters
    • Patent number 5,053,536
    • Issue date Oct 1, 1991
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Pyrolysis of perfluoropolyethers
    • Patent number 5,025,093
    • Issue date Jun 18, 1991
    • Exfluor Research Corporation
    • Richard J. Lagow
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Use of chlorofluoropolyethers as lubricants for refrigerants
    • Patent number 4,931,199
    • Issue date Jun 5, 1990
    • Exfluor Research Corporation
    • Thomas R. Bierschenk
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Pyrolysis of perfluoropolyethers
    • Patent number 4,894,484
    • Issue date Jan 16, 1990
    • Exfluor Research Corporation
    • Richard J. Lagow
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents