TREA

Mitsuhiro Oyama

Follow

Person

  • Sukagawa, JP
People

Patents Grantslast 30 patents

  • 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