TREA

Yutaka Koiwai

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Driving circuit for DC motor
    • Patent number 4,362,976
    • Issue date Dec 7, 1982
    • Fujitsu Fanuc Limited
    • Yoshiki Fujioka
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Induction motor drive apparatus
    • Patent number 4,327,315
    • Issue date Apr 27, 1982
    • Fujitsu Fanuc Limited
    • Shigeki Kawada
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Induction motor drive apparatus
    • Patent number 4,322,671
    • Issue date Mar 30, 1982
    • Fujitsu Fanuc Limited
    • Shigeki Kawada
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Device for detecting opposite phase and open phase
    • Patent number 4,284,939
    • Issue date Aug 18, 1981
    • Fujitsu Fanuc Limited
    • Shigeki Kawada
    • G01 - MEASURING TESTING