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Nippon Ferrofluidics Corporation

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic bearing device
    • Patent number 5,394,044
    • Issue date Feb 28, 1995
    • Nippon Ferrofluidics Corporation
    • Akira Yamamura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dynamic pressure bearing assembly
    • Patent number 5,372,432
    • Issue date Dec 13, 1994
    • Nippon Ferrofluidics Corporation
    • Ryuhei Ishikawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Composite vacuum pump
    • Patent number 5,092,740
    • Issue date Mar 3, 1992
    • Nippon Ferrofluidics Corporation
    • Akira Yamamura
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Magnetic bearing device
    • Patent number 5,073,737
    • Issue date Dec 17, 1991
    • Nippon Ferrofluidics Corporation
    • Akira Yamamura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Magnetic bearing device
    • Patent number 5,068,558
    • Issue date Nov 26, 1991
    • Nippon Ferrofluidics Corporation
    • Akira Yamamura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Single power source magnetic bearing device
    • Patent number 5,066,879
    • Issue date Nov 19, 1991
    • Nippon Ferrofluidics Corporation
    • Akira Yamamura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing member for ferrofluid seal and method of producing the same
    • Patent number 5,052,697
    • Issue date Oct 1, 1991
    • Nippon Ferrofluidics Corporation
    • Ryuhei Ishikawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Magnetic bearing device
    • Patent number 5,046,151
    • Issue date Sep 3, 1991
    • Nippon Ferrofluidics Corporation
    • Akira Yamamura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Bearing equipment for vacuum devices
    • Patent number 4,955,731
    • Issue date Sep 11, 1990
    • Nippon Ferrofluidics Corporation
    • Akira Yamamura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Variant-pole electric motor
    • Patent number 4,847,526
    • Issue date Jul 11, 1989
    • Nippon Ferrofluidics Corporation
    • Isamu Takehara
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

  • Information Trademark

    73775381 - FERRO TEC
    • Serial number 73775381
    • Registration number 1763865
    • Filing date Jan 18, 1989
    • NIPPON FERROFLUIDICS, CORPORATION
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry