by a magnetic field

Patents Grantslast 30 patents

  • Information Patent Grant

    Self-healing bearing device using electric or magnetic fluids

    • Patent number 11,976,690
    • Issue date May 7, 2024
    • BIFRÖST RESEARCH AND DEVELOPMENT B.V.
    • Stefan George Emile Lampaert
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Turbomachine with internal bearing and rotor-spline interface cooli...

    • Patent number 11,441,487
    • Issue date Sep 13, 2022
    • Concepts NREC, LLC
    • Kevin D. Fairman
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Magnetic liquid sealing device having heat conductive rod and heat...

    • Patent number 11,174,947
    • Issue date Nov 16, 2021
    • Tsinghua University
    • Decai Li
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Magnetic fluid seal

    • Patent number 10,378,587
    • Issue date Aug 13, 2019
    • EAGLEBURGMANN JAPAN CO., LTD.
    • Kazuhiko Sato
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealed bearing assembly with swing and movement

    • Patent number 9,835,254
    • Issue date Dec 5, 2017
    • APPLIED NANO TECHNOLOGY SCIENCE, INC.
    • Min-Su Hsiao
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Motor

    • Patent number 8,564,164
    • Issue date Oct 22, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Ju Ho Kim
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Cooling fan with magnetic liquid

    • Patent number 6,567,268
    • Issue date May 20, 2003
    • Hsin-Mao Hsieh
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electric spindle motor with magnetic bearing and hydrodynamic bearing

    • Patent number 6,545,378
    • Issue date Apr 8, 2003
    • Data Storage Institute
    • Shixin Chen
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Spindle device having a dynamic-pressure-fluid bearing

    • Patent number 6,404,586
    • Issue date Jun 11, 2002
    • Matsushita Electric Industrial Co., Ltd.
    • Katsunori Sakuragi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spindle device having a dynamic-pressure-fluid bearing

    • Patent number 6,301,074
    • Issue date Oct 9, 2001
    • Matsushita Electric Industrial Co. Ltd.
    • Katsunori Sakuragi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spindle device having a dynamic-pressure-fluid bearing

    • Patent number 6,219,199
    • Issue date Apr 17, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Katsunori Sakuragi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gas dynamic pressure bearing apparatus

    • Patent number 6,147,424
    • Issue date Nov 14, 2000
    • Sankyo Seiki Mfg. Co., Ltd.
    • Masato Gomyo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydrodynamic bearing apparatus and method of manufacturing it

    • Patent number 6,010,246
    • Issue date Jan 4, 2000
    • Sankyo Seiki Mfg. Co., Ltd.
    • Masato Gomyo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing device for use in a motor

    • Patent number 5,828,795
    • Issue date Oct 27, 1998
    • Sankyo Seiki Mfg. Co., Ltd.
    • Toshihiko Miyakoshi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Motor having dynamic pressure bearing device

    • Patent number 5,789,836
    • Issue date Aug 4, 1998
    • Sankyo Seiko Mfg. Co., Ltd.
    • Masamichi Hayakawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydrodynamic bearing apparatus and method for manufacturing same

    • Patent number 5,743,656
    • Issue date Apr 28, 1998
    • Sankyo Seiki Mfg. Co. Ltd.
    • Masato Gomyo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Bearing seal system

    • Patent number 5,667,309
    • Issue date Sep 16, 1997
    • Sankyo Seiki Mfg. Co., Ltd.
    • Tamotsu Nose
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fluid bearing unit and manufactured method thereof

    • Patent number 5,628,569
    • Issue date May 13, 1997
    • Kabushiki Kaisha Sankyo Seiki Seisakusho
    • Masamichi Hayakawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rotary body bearing apparatus, motor and polygon mirror motor

    • Patent number 5,541,462
    • Issue date Jul 30, 1996
    • Hitachi, Ltd.
    • Katsutoshi Nii
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Self-contained low power fluid bearing and bearing seal

    • Patent number 5,161,900
    • Issue date Nov 10, 1992
    • International Business Machines, Corp.
    • Zine-Eddine Bougathou
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Magnetic fluid bearing apparatus and motor having magnetic fluid be...

    • Patent number 5,108,198
    • Issue date Apr 28, 1992
    • Hitachi, Ltd.
    • Katsutoshi Nii
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing and friction bearing unit containing a magnetic fluid

    • Patent number 5,100,159
    • Issue date Mar 31, 1992
    • SKF Industrial Trading and Development Co. B.V.
    • Johan C. M. Bras
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Diamagnetic colloids based seals

    • Patent number 5,047,392
    • Issue date Sep 10, 1991
    • Troy Investments Inc.
    • Aharon Z. Hed
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Bearing apparatus

    • Patent number 4,938,611
    • Issue date Jul 3, 1990
    • Hitachi, Ltd.
    • Katsutoshi Nii
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydrostatic bearing utilizing a ferromagnetic fluid

    • Patent number 4,809,354
    • Issue date Feb 28, 1989
    • Nippon Seiko Kabushiki Kaisha
    • Sousuke Kawashima
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Static pressure bearing

    • Patent number 4,749,283
    • Issue date Jun 7, 1988
    • Canon Kabushiki Kaisha
    • Takao Yokomatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fluid seal with shaft excursion compensation

    • Patent number 4,671,677
    • Issue date Jun 9, 1987
    • Mechanical Technology Incorporated
    • Hooshang Heshmat
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ferrofluid thrust and radial bearing assembly

    • Patent number 4,526,484
    • Issue date Jul 2, 1985
    • Ferrofluidics Corporation
    • Philip Stahl
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rotary head assembly having fluid thrust and radial bearings

    • Patent number 4,490,759
    • Issue date Dec 25, 1984
    • Matsushita Electric Industrial Co., Ltd.
    • Teruo Maruyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Magnet structure

    • Patent number 4,451,811
    • Issue date May 29, 1984
    • Litton Systems, Inc.
    • George J. Hoffman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents