Patents by Inventor Xianfeng Duan

Xianfeng Duan 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).

  • Methods of making, positioning and orienting nanostructures, nanostructure arrays and nanostructure devices
    Patent number: 7151209
    Abstract: Nanostructure manufacturing methods and methods for assembling nanostructures into functional elements such as junctions, arrays and devices are provided. Systems for practicing the methods are also provided.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: December 19, 2006
    Assignee: Nanosys, Inc.
    Inventors: Stephen Empedocles, Larry Bock, Calvin Y. H. Chow, Xianfeng Duan, Chunming Niu, George Pontis, Vijendra Sahi, Linda T. Romano, David Stumbo
  • Applications of nano-enabled large area macroelectronic substrates incorporating nanowires and nanowire composites
    Publication number: 20060237537
    Abstract: Macroelectronic substrate materials incorporating nanowires are described. These are used to provide underlying electronic elements (e.g., transistors and the like) for a variety of different applications. Methods for making the macroelectronic substrate materials are disclosed. One application is for transmission an reception of RF signals in small, lightweight sensors. Such sensors can be configured in a distributed sensor network to provide security monitoring. Furthermore, a method and apparatus for a radio frequency identification (RFID) tag is described. The RFID tag includes an antenna and a beam-steering array. The beam-steering array includes a plurality of tunable elements. A method and apparatus for an acoustic cancellation device and for an adjustable phase shifter that are enabled by nanowires are also described.
    Type: Application
    Filed: June 14, 2006
    Publication date: October 26, 2006
    Applicant: Nanosys, Inc.
    Inventors: Stephen Empedocles, David Stumbo, Chunming Niu, Xianfeng Duan
  • Applications of nano-enabled large area macroelectronic substrates incorporating nanowires and nanowire composites
    Patent number: 7051945
    Abstract: Macroelectronic substrate materials incorporating nanowires are described. These are used to provide underlying electronic elements (e.g., transistors and the like) for a variety of different applications. Methods for making the macroelectronic substrate materials are disclosed. One application is for transmission an reception of RF signals in small, lightweight sensors. Such sensors can be configured in a distributed sensor network to provide security monitoring. Furthermore, a method and apparatus for a radio frequency identification (RFID) tag is described. The RFID tag includes an antenna and a beam-steering array. The beam-steering array includes a plurality of tunable elements. A method and apparatus for an acoustic cancellation device and for an adjustable phase shifter that are enabled by nanowires are also described.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: May 30, 2006
    Assignee: Nanosys, Inc
    Inventors: Stephen Empedocles, David P. Stumbo, Chunming Niu, Xianfeng Duan
  • Methods of making, positioning and orienting nanostructures, nanostructure arrays and nanostructure devices
    Patent number: 6962823
    Abstract: Nanostructure manufacturing methods and methods for assembling nanostructures into functional elements such as junctions, arrays and devices are provided. Systems for practicing the methods are also provided.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: November 8, 2005
    Assignee: Nanosys, Inc.
    Inventors: Stephen Empedocles, Larry Bock, Calvin Chow, Xianfeng Duan, Chungming Niu, George Pontis, Vijendra Sahi, Linda T. Romano, David Stumbo
  • Methods of making, positioning and orienting nanostructures, nanostructure arrays and nanostructure devices
    Publication number: 20050230356
    Abstract: Nanostructure manufacturing methods and methods for assembling nanostructures into functional elements such as junctions, arrays and devices are provided. Systems for practicing the methods are also provided.
    Type: Application
    Filed: May 31, 2005
    Publication date: October 20, 2005
    Applicant: NANOSYS, Inc.
    Inventors: Stephen Empedocles, Larry Bock, Calvin Chow, Xianfeng Duan, Chunming Niu, George Pontis, Vijendra Sahi, Linda Romano, David Stumbo
  • Applications of nano-enabled large area macroelectronic substrates incorporating nanowires and nanowire composites
    Publication number: 20050199731
    Abstract: Macroelectronic substrate materials incorporating nanowires are described. These are used to provide underlying electronic elements (e.g., transistors and the like) for a variety of different applications. Methods for making the macroelectronic substrate materials are disclosed. One application is for transmission an reception of RF signals in small, lightweight sensors. Such sensors can be configured in a distributed sensor network to provide security monitoring. Furthermore, a method and apparatus for a radio frequency identification (RFID) tag is described. The RFID tag includes an antenna and a beam-steering array. The beam-steering array includes a plurality of tunable elements. A method and apparatus for an acoustic cancellation device and for an adjustable phase shifter that are enabled by nanowires are also described.
    Type: Application
    Filed: September 30, 2003
    Publication date: September 15, 2005
    Inventors: Stephen Empedocles, David Stumbo, Chunming Niu, Xianfeng Duan
  • Applications of nano-enabled large area macroelectronic substrates incorporating nanowires and nanowire composites
    Publication number: 20040112964
    Abstract: Macroelectronic substrate materials incorporating nanowires are described. These are used to provide underlying electronic elements (e.g., transistors and the like) for a variety of different applications. Methods for making the macroelectronic substrate materials are disclosed. One application is for transmission an reception of RF signals in small, lightweight sensors. Such sensors can be configured in a distributed sensor network to provide security monitoring. Furthermore, a method and apparatus for a radio frequency identification (RFID) tag is described. The RFID tag includes an antenna and a beam-steering array. The beam-steering array includes a plurality of tunable elements. A method and apparatus for an acoustic cancellation device and for an adjustable phase shifter that are enabled by nanowires are also described.
    Type: Application
    Filed: September 30, 2003
    Publication date: June 17, 2004
    Applicant: Nanosys, Inc.
    Inventors: Stephen Empedocles, David P. Stumbo, Chunming Niu, Xianfeng Duan
  • Methods of making, positioning and orienting nanostructures, nanostructure arrays and nanostructure devices
    Publication number: 20040005723
    Abstract: Nanostructure manufacturing methods and methods for assembling nanostructures into functional elements such as junctions, arrays and devices are provided. Systems for practicing the methods are also provided.
    Type: Application
    Filed: April 1, 2003
    Publication date: January 8, 2004
    Applicant: NANOSYS, Inc.
    Inventors: Stephen Empedocles, Larry Bock, Calvin Chow, Xianfeng Duan, Chungming Niu, George Pontis, Vijendra Sahi, Linda T. Romano, David Stumbo