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Kai Cheong Kwan

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  • Hong Kong, HK
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic structure for compact imaging device
    • Patent number 8,593,743
    • Issue date Nov 26, 2013
    • Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    • Kin Ming Fan
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Interchangeable zoom lens actuator
    • Patent number 8,428,451
    • Issue date Apr 23, 2013
    • Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    • Chuen Kuen Yeung
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Compact imaging device
    • Patent number 8,031,419
    • Issue date Oct 4, 2011
    • Hong Kong Applied Science and Technology Research Institute, Co., Ltd.
    • Kin Ming Fan
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    INTERCHANGEABLE ZOOM LENS ACTUATOR
    • Publication number 20130028581
    • Publication date Jan 31, 2013
    • Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    • Cheun Kuen Yeung
    • G02 - OPTICS
  • Information Patent Application

    MAGNETIC STRUCTURE FOR COMPACT IMAGING DEVICE
    • Publication number 20130021685
    • Publication date Jan 24, 2013
    • Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    • Kin Ming Fan
    • B32 - LAYERED PRODUCTS
  • Information Patent Application

    COMPACT IMAGING DEVICE
    • Publication number 20120026612
    • Publication date Feb 2, 2012
    • Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    • Kin Ming Fan
    • G02 - OPTICS
  • Information Patent Application

    COMPACT IMAGING DEVICE
    • Publication number 20110026149
    • Publication date Feb 3, 2011
    • Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    • Kin Ming Fan
    • G02 - OPTICS
  • Information Patent Application

    COMPACT IMAGING DEVICE
    • Publication number 20100238346
    • Publication date Sep 23, 2010
    • HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE CO. LTD.
    • Sio Kuan Lam
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Anti-Shaking Optical Element For Optical Imaging Systems
    • Publication number 20100226010
    • Publication date Sep 9, 2010
    • Kai Cheong Kwan
    • G02 - OPTICS