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Longji Bai

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Blade driving device for high resolution imaging apparatus
    • Patent number 11,561,456
    • Issue date Jan 24, 2023
    • Nidec Copal Corporation
    • Kazuo Shikama
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Blade drive device
    • Patent number 10,816,875
    • Issue date Oct 27, 2020
    • Nidec Copal Corporation
    • Kenzo Imai
    • G02 - OPTICS
  • Information Patent Grant

    Blade driving device
    • Patent number 10,809,595
    • Issue date Oct 20, 2020
    • Nidec Copal Corporation
    • Kazuo Shikama
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Blade drive device
    • Patent number 10,788,731
    • Issue date Sep 29, 2020
    • Nidec Copal Corporation
    • Kazuo Shikama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Lens driving device
    • Patent number 10,606,147
    • Issue date Mar 31, 2020
    • Nidec Copal Corporation
    • Longji Bai
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Blade driving device
    • Patent number 10,564,515
    • Issue date Feb 18, 2020
    • Nidec Copal Corporation
    • Kazuo Shikama
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Device for driving a lens frame
    • Patent number 10,133,023
    • Issue date Nov 20, 2018
    • Nidec Copal Corporation
    • Longji Bai
    • G02 - OPTICS
  • Information Patent Grant

    Camera blade drive device
    • Patent number 8,475,064
    • Issue date Jul 2, 2013
    • Longji Bai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Blade actuating apparatus for optical instruments
    • Patent number 7,573,629
    • Issue date Aug 11, 2009
    • Nidec Copal Corporation
    • Longji Bai
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

  • Information Patent Application

    LENS DEVICE, IMAGING DEVICE, AND MOBILE OBJECT
    • Publication number 20210311281
    • Publication date Oct 7, 2021
    • VICTOR HASSELBLAD AB
    • Masahiro SHIRONO
    • G02 - OPTICS
  • Information Patent Application

    LENS DEVICE, IMAGING DEVICE, AND MOBILE OBJECT
    • Publication number 20210311285
    • Publication date Oct 7, 2021
    • VICTOR HASSELBLAD AB
    • Masahiro SHIRONO
    • G02 - OPTICS
  • Information Patent Application

    LENS APPARATUS AND IMAGE CAPTURING APPARATUS
    • Publication number 20210239936
    • Publication date Aug 5, 2021
    • VICTOR HASSELBLAD AB
    • Masahiro SHIRONO
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    LENS APPARATUS AND IMAGE CAPTURING APPARATUS
    • Publication number 20210239937
    • Publication date Aug 5, 2021
    • VICTOR HASSELBLAD AB
    • Masahiro SHIRONO
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    BLADE DRIVING DEVICE
    • Publication number 20210041763
    • Publication date Feb 11, 2021
    • Nidec Copal Corporation
    • Kazuo SHIKAMA
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    BLADE DRIVE DEVICE
    • Publication number 20190204713
    • Publication date Jul 4, 2019
    • Nidec Copal Corporation
    • Kenzo IMAI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    BLADE DRIVE DEVICE
    • Publication number 20190196301
    • Publication date Jun 27, 2019
    • Nidec Copal Corporation
    • Kazuo SHIKAMA
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    BLADE DRIVING DEVICE
    • Publication number 20180039158
    • Publication date Feb 8, 2018
    • Nidec Copal Corporation
    • Kazuo SHIKAMA
    • G02 - OPTICS
  • Information Patent Application

    BLADE DRIVING DEVICE
    • Publication number 20180039159
    • Publication date Feb 8, 2018
    • Nidec Copal Corporation
    • Kazuo SHIKAMA
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    LENS DRIVING DEVICE
    • Publication number 20170322476
    • Publication date Nov 9, 2017
    • Nidec Copal Corporation
    • Longji BAI
    • G02 - OPTICS
  • Information Patent Application

    LENS DRIVE DEVICE
    • Publication number 20170254979
    • Publication date Sep 7, 2017
    • Nidec Copal Corporation
    • Longji BAI
    • G02 - OPTICS
  • Information Patent Application

    CAMERA BLADE DRIVE DEVICE
    • Publication number 20120076486
    • Publication date Mar 29, 2012
    • Longji Bai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    BLADE ACTUATING APPARATUS FOR OPTICAL INSTRUMENTS
    • Publication number 20090034046
    • Publication date Feb 5, 2009
    • Longji BAI
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY