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Rintarou Takahashi

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  • Kumagaya-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Valve seat
    • Patent number 8,844,903
    • Issue date Sep 30, 2014
    • Kabushiki Kaisha Riken
    • Rintarou Takahashi
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

  • Information Patent Application

    SINTERED ALLOY VALVE GUIDE AND ITS PRODUCTION METHOD
    • Publication number 20160160700
    • Publication date Jun 9, 2016
    • Kabushiki Kaisha Riken
    • Rintarou TAKAHASHI
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    VALVE SEAT MADE OF IRON-BASED SINTERED ALLOY
    • Publication number 20130291822
    • Publication date Nov 7, 2013
    • Kabushiki Kaisha Riken
    • Rintarou Takahashi
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    VALVE SEAT
    • Publication number 20120319026
    • Publication date Dec 20, 2012
    • Rintarou Takahashi
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...