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Hisaya Nakagawa

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  • Nagano, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bearing unit
    • Patent number 7,435,002
    • Issue date Oct 14, 2008
    • NIDEC SANKYO CORPORATION
    • Hisaya Nakagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dynamic pressure bearing device
    • Patent number 6,805,489
    • Issue date Oct 19, 2004
    • Sankyo Seiki Mfg. Co., Ltd.
    • Hisaya Nakagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dynamic pressure bearing apparatus
    • Patent number 6,402,385
    • Issue date Jun 11, 2002
    • Sankyo Seiki Mfg. Co., Ltd.
    • Masamichi Hayakawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dynamic pressure bearing device and method for manufacturing same
    • Patent number 6,244,749
    • Issue date Jun 12, 2001
    • Kabushiki Kaisha Sankyo Seiki Sesakusho
    • Hisaya Nakagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sintered oil-impregnated bearing, manufacturing method thereof, and...
    • Patent number 5,980,819
    • Issue date Nov 9, 1999
    • Kabushiki Kaisha Sankyo Seiki Seisakusho
    • Hisaya Nakagawa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Lubricating oil composition for use with sintered porous bearings
    • Patent number 5,631,211
    • Issue date May 20, 1997
    • Kabushiki Kaisha Sankyo Seiki Seisakusho
    • Hisaya Nakagawa
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Bearing device for an electric motor
    • Patent number 5,372,433
    • Issue date Dec 13, 1994
    • Kabushiki Kaisha Sankyo Seiki Seisakusho
    • Toru Nakanishi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Bearing device
    • Patent number 5,129,738
    • Issue date Jul 14, 1992
    • Sankyo Seiki Mfg. Co., Ltd.
    • Hisaya Nakagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sintered oil-impregnated bearing
    • Patent number 5,120,140
    • Issue date Jun 9, 1992
    • Sankyo Seiki Mfg. Co., Ltd.
    • Hisaya Nakagawa
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Oil impregnated sintered bearing
    • Patent number 5,120,091
    • Issue date Jun 9, 1992
    • Sankyo Seiki Mfg. Co., Ltd.
    • Hisaya Nakagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Bearing unit
    • Publication number 20060171620
    • Publication date Aug 3, 2006
    • Hisaya Nakagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Sintered oil-impregnated bearing and manufacturing method thereof
    • Publication number 20060039638
    • Publication date Feb 23, 2006
    • Michiaki Takizawa
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    Bearing device, and manufacturing method therefor and motor provide...
    • Publication number 20040252923
    • Publication date Dec 16, 2004
    • Yasushi Mizusaki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Rotary shaft motor
    • Publication number 20030227226
    • Publication date Dec 11, 2003
    • Masaki Goto
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Dynamic pressure bearing device
    • Publication number 20030152301
    • Publication date Aug 14, 2003
    • Sankyo Seiki Mfg. Co., Ltd.
    • Hisaya Nakagawa
    • G02 - OPTICS
  • Information Patent Application

    Bearing apparatus and method for manufacturing same
    • Publication number 20020172438
    • Publication date Nov 21, 2002
    • KABUSHIKI KAISHA SANKYO SEIKI SEISAKUSHO
    • Hisaya Nakagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Air dynamic pressure bearing and optical deflector
    • Publication number 20020060828
    • Publication date May 23, 2002
    • Yutaka Ishizuka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...