TREA

Hironari Okada

Follow

Person

  • Tokyo, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    R-T-B system permanent magnet
    • Patent number 7,462,403
    • Issue date Dec 9, 2008
    • TDK Corporation
    • Tetsuya Hidaka
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    R-T-B system rare earth permanent magnet
    • Patent number 7,199,690
    • Issue date Apr 3, 2007
    • TDK Corporation
    • Tetsuya Hidaka
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    R-t-b system permanent magnet
    • Publication number 20070102069
    • Publication date May 10, 2007
    • Tetsuya Hidaka
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B system rare earth permanent magnet
    • Publication number 20040189426
    • Publication date Sep 30, 2004
    • TDK CORPORATION
    • Tetsuya Hidaka
    • H01 - BASIC ELECTRIC ELEMENTS