TREA

Erkki Niemi

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  • Espoo, FI
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Patents Applicationslast 30 patents

  • Information Patent Application

    SINGLE-PHASE TO THREE-PHASE CONVERTER
    • Publication number 20090059625
    • Publication date Mar 5, 2009
    • ABB OY
    • Tero VIITANEN
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Frequency converter
    • Publication number 20080133780
    • Publication date Jun 5, 2008
    • ABB OY
    • Erkki Niemi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER