Patents by Inventor Zhengfang Qian

Zhengfang Qian has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20150076235
    Abstract: Chipless RFID nanotube tags (300, 400, 500, 600, 700, 800, 900) with anti-counterfeiting capability are designed into one piece, mostly two pieces, three pieces, or multiple pieces of nanotube antenna elements on at least two dielectric substrates (310/312, 510/512, 810/812, 910/912/913/916 etc.) for providing brand product protection, authorization, anti-counterfeiting, and even recycling, and tag process control purposes.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Inventors: Zhengfang Qian, You Liu
  • Publication number: 20150069133
    Abstract: Chipless RFID tags (200, 210, 220, 230, 240, 250, 260, 310, 320, 330, 400, 410, 420, 500, 510, 520, 600, 610, and 620) are designed and fabricated from the structures of the nanotube elements and their patterns on a dielectric substrate (202, 311, 401, and 501 etc.) by thin film coating or printing following by a polymer curing process.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 12, 2015
    Inventor: ZHENGFANG QIAN
  • Patent number: 7898481
    Abstract: Antennas (100, 1000, 1600, 1800, 1900) or other radio frequency components that include an electrically configurable anisotropic element (112, 1502, 1608, 1806) are provided. According to certain embodiments the electrical configurable anisotropic element (112, 1502, 1608, 1806, 1904, 1906, 1918, 1920, 1922) includes a material (202, 1912, 1924) including carbon nanotubes or conductive nano-tubes or nano-wires (208) dispersed in a liquid crystal material or other medium with that can be aligned by an applied field.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: March 1, 2011
    Assignee: Motorola Mobility, Inc.
    Inventors: Zhengfang Qian, Rudy M. Emrick, Zili Li, Roger L. Scheer
  • Publication number: 20090174606
    Abstract: Antennas (100, 1000, 1600, 1800, 1900) or other radio frequency components that include an electrically configurable anisotropic element (112, 1502, 1608, 1806) are provided. According to certain embodiments the electrical configurable anisotropic element (112, 1502, 1608, 1806, 1904, 1906, 1918, 1920, 1922) includes a material (202, 1912, 1924) including carbon nanotubes or conductive nano-tubes or nano-wires (208) dispersed in a liquid crystal material or other medium with that can be aligned by an applied field.
    Type: Application
    Filed: January 8, 2008
    Publication date: July 9, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Zhengfang Qian, Rudy M. Emrick, Zili Li, Roger L. Scheer
  • Patent number: 7501985
    Abstract: An apparatus (10, 30, 40, 50) is provided that relates to nanotubes as radiation elements for antennas and phased arrays, and more particularly to a macro-sized RF antenna for mobile devices. The antenna comprises a plurality of nanostructures (16), e.g., carbon nanotubes, forming an antenna structure on a substrate (12), and a radio frequency signal apparatus formed within the substrate (12) and coupled to the plurality of nanostructures (16). The radiation element length of a nested multiwall nanotube (161) of an exemplary embodiment may be tuned to a desirable frequency by an electromagnetic force (163).
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: March 10, 2009
    Assignee: Motorola, Inc.
    Inventors: Zhengfang Qian, Robert B. Lempkowski
  • Publication number: 20070176832
    Abstract: An apparatus (10, 30, 40, 50) is provided that relates to nanotubes as radiation elements for antennas and phased arrays, and more particularly to a macro-sized RF antenna for mobile devices. The antenna comprises a plurality of nanostructures (16), e.g., carbon nanotubes, forming an antenna structure on a substrate (12), and a radio frequency signal apparatus formed within the substrate (12) and coupled to the plurality of nanostructures (16). The radiation element length of a nested multiwall nanotube (161) of an exemplary embodiment may be tuned to a desirable frequency by an electromagnetic force (163).
    Type: Application
    Filed: January 31, 2006
    Publication date: August 2, 2007
    Inventors: Zhengfang Qian, Robert Lempkowski