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Katsuji Soeda

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Patents Grantslast 30 patents

  • Information Patent Grant

    Permanent magnet and magnetization apparatus for producing the perm...
    • Patent number 5,200,729
    • Issue date Apr 6, 1993
    • Yamamoto Electric Corporation
    • Katsuji Soeda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor control system
    • Patent number 4,952,860
    • Issue date Aug 28, 1990
    • Yamamoto Electric Corporation
    • Katsuji Soeda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control apparatus for synchronous motors
    • Patent number 4,804,900
    • Issue date Feb 14, 1989
    • Yamamoto Electric Corporation
    • Katsuji Soeda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor speed control system
    • Patent number 4,274,037
    • Issue date Jun 16, 1981
    • Yamamoto Electric Industrial Co., Ltd.
    • Katsuji Soeda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Slide-type potentiometer
    • Patent number 4,251,796
    • Issue date Feb 17, 1981
    • Yamamoto Electric Industrial Co., Ltd.
    • Katsuji Soeda
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    DC Motor speed control system
    • Patent number 4,246,521
    • Issue date Jan 20, 1981
    • Yamamoto Electric Industrial Co., Ltd.
    • Katsuji Soeda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Speed control circuit arrangement for an AC commutator motor
    • Patent number 4,228,383
    • Issue date Oct 14, 1980
    • Yamamoto Electric Industries, Ltd.
    • Katsuji Soeda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Speed control circuit for a series motor
    • Patent number 4,170,749
    • Issue date Oct 9, 1979
    • Yamamoto Electric Industrial Co., Ltd.
    • Katsuji Soeda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor speed control system
    • Patent number 4,168,455
    • Issue date Sep 18, 1979
    • Yamamoto Electric Industrial Co., Ltd.
    • Katsuji Soeda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor driven sewing machine
    • Patent number 4,143,605
    • Issue date Mar 13, 1979
    • Yamamoto Electric Industrial Co., Ltd.
    • Katsuji Soeda
    • D05 - SEWING EMBROIDERING TUFTING
  • Information Patent Grant

    Control apparatus for an electrically driven sewing machine with st...
    • Patent number 4,142,472
    • Issue date Mar 6, 1979
    • Yamamoto Electric Industrial Co., Ltd.
    • Katsuji Soeda
    • D05 - SEWING EMBROIDERING TUFTING