TREA

Teruo Umehara

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  • Hanyu, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Arm assembly and voice coil motor
    • Patent number 5,691,581
    • Issue date Nov 25, 1997
    • Hitachi Metals, Ltd.
    • Teruo Umehara
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Actuator with moveable coil and recording apparatus
    • Patent number 5,581,422
    • Issue date Dec 3, 1996
    • Hitachi Metals, Ltd.
    • Teruo Umehara
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Swing-type actuator
    • Patent number 5,576,583
    • Issue date Nov 19, 1996
    • Hitachi Metals, Ltd.
    • Teruo Umehara
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Swing-type actuator
    • Patent number 5,459,359
    • Issue date Oct 17, 1995
    • Hitachi Metals, Ltd.
    • Teruo Umehara
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Swing-type actuator
    • Patent number 5,168,185
    • Issue date Dec 1, 1992
    • Hitachi Metals, Ltd.
    • Teruo Umehara
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Swing-type actuator
    • Patent number 5,168,184
    • Issue date Dec 1, 1992
    • Hitachi Metals, Ltd.
    • Teruo Umehara
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Swing-type actuator
    • Patent number 5,165,090
    • Issue date Nov 17, 1992
    • Hitachi Metals, Ltd.
    • Fumihiko Takahashi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Focus magnet with separate static and dynamic control coils
    • Patent number 5,113,162
    • Issue date May 12, 1992
    • Hitachi Metals, Ltd.
    • Teruo Umehara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Linear motor
    • Patent number 5,087,844
    • Issue date Feb 11, 1992
    • Hitachi Metals, Ltd.
    • Seiki Takedomi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Linear motor
    • Patent number 5,057,723
    • Issue date Oct 15, 1991
    • Hitachi Metals, Ltd.
    • Teruo Umehara
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Voice coil-type linear motor
    • Patent number 4,888,506
    • Issue date Dec 19, 1989
    • Hitachi Metals, Ltd.
    • Teruo Umehara
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Linear motor of moving-coil type
    • Patent number 4,758,750
    • Issue date Jul 19, 1988
    • Hitachi, Ltd.
    • Masato Itagaki
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electromagnetic drive unit
    • Patent number 4,602,232
    • Issue date Jul 22, 1986
    • Hitachi Metals, Ltd.
    • Teruo Umehara
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Actuator for use in a pickup device for a video disk player
    • Patent number 4,490,815
    • Issue date Dec 25, 1984
    • Hitachi Metals, Ltd.
    • Teruo Umehara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    D.C. Electromagnetic actuator
    • Patent number 4,422,060
    • Issue date Dec 20, 1983
    • Hitachi Metals, Ltd.
    • Norio Matsumoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Multi-pole permanent magnet rotor
    • Patent number 4,260,920
    • Issue date Apr 7, 1981
    • Hitachi, Ltd.
    • Tsutomu Nakamura
    • G01 - MEASURING TESTING