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Masaharu Hasei

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  • Kumagaya, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gas-detecting element and gas-detecting device comprising same
    • Patent number 6,787,014
    • Issue date Sep 7, 2004
    • Kabushiki Kaisha Riken
    • Masaharu Hasei
    • G01 - MEASURING TESTING
  • Information Patent Grant

    NOx sensor
    • Patent number 6,773,565
    • Issue date Aug 10, 2004
    • Kabushiki Kaisha Riken
    • Akira Kunimoto
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Measuring NOx concentration
    • Patent number 6,551,497
    • Issue date Apr 22, 2003
    • Kabushiki Kaisha Riken
    • Yunzhi Gao
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Composite sensor
    • Patent number 6,471,840
    • Issue date Oct 29, 2002
    • Kabushiki Kaisha Riken
    • Yunzhi Gao
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Nitrogen oxide gas sensor
    • Patent number 6,413,397
    • Issue date Jul 2, 2002
    • Kabushiki Kaisha Riken
    • Masaharu Hasei
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Nitrogen oxide sensor
    • Patent number 6,319,377
    • Issue date Nov 20, 2001
    • Kabushiki Kaisha Riken
    • Masaharu Hasei
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor
    • Patent number 6,303,011
    • Issue date Oct 16, 2001
    • Kabushiki Kaisha Riken
    • Yunzhi Gao
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Nitrogen oxide gas sensor
    • Patent number 6,274,016
    • Issue date Aug 14, 2001
    • Kabushiki Kaisha Riken
    • Masaharu Hasei
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Nox sensor
    • Patent number 6,143,165
    • Issue date Nov 7, 2000
    • Kabushiki Kaisha Riken
    • Hideyuki Kurosawa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    NOx sensor
    • Patent number 6,126,902
    • Issue date Oct 3, 2000
    • Kabushiki Kaisha Riken
    • Akira Kunimoto
    • G01 - MEASURING TESTING
  • Information Patent Grant

    NO.sub.x sensor
    • Patent number 6,019,881
    • Issue date Feb 1, 2000
    • Kabushiki Kaisha Riken
    • Hideyuki Kurosawa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    NO.sub.x sensor
    • Patent number 5,897,759
    • Issue date Apr 27, 1999
    • Kabushiki Kaisha Riken
    • Hideyuki Kurosawa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Nitrogen oxide detector
    • Patent number 5,861,092
    • Issue date Jan 19, 1999
    • Riken Corporation
    • Fumio Kiyota
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Gas-detecting element and gas-detecting device comprising same
    • Publication number 20030205078
    • Publication date Nov 6, 2003
    • Kabushiki Kaisha Riken
    • Masaharu Hasei
    • G01 - MEASURING TESTING
  • Information Patent Application

    NOx sensor
    • Publication number 20020017461
    • Publication date Feb 14, 2002
    • Akira Kunimoto
    • G01 - MEASURING TESTING
  • Information Patent Application

    Nitrogen oxide gas sensor
    • Publication number 20010025786
    • Publication date Oct 4, 2001
    • Masaharu Hasei
    • G01 - MEASURING TESTING