Patents by Inventor Junhong Chen

Junhong Chen 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).

  • Patent number: 9187823
    Abstract: A method of growing carbon nanostructures on a conductive substrate without the need for a vacuum or low-pressure environment provides high electrical field strengths to generate the necessary carbon ions from a feedstock gas and to promote alignment and separation of the resulting structures. In one embodiment, substantially uniform “vertical” nanostructures may be formed around the periphery of an extended wire for use in corona discharge applications or the like. Growth on a planar substrate may provide use with a variety of apparatus requiring a high specific surface conductor such as capacitors, batteries, and solar cells.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: November 17, 2015
    Assignee: National Science Foundation
    Inventors: Junhong Chen, Kehan Yu, Zheng Bo, Guahua Lu
  • Publication number: 20150280229
    Abstract: The present disclosure relates generally to the field of lithium-ion batteries and battery modules. More specifically, the present disclosure relates to Si-based anode materials for use as anode active materials for lithium-ion batteries. One example includes micron/nano-scale structures that include a carbonate template structure and a silicon (Si) layer conformally deposited over the carbonate template. Another example includes a hollow, micron/nano-scale silicon structure having an oxygen content less than approximately 9%, wherein the interior of the hollow micron/nano-scale silicon structure is substantially free of carbon.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 1, 2015
    Inventors: Junhong Chen, Xingkang Huang
  • Publication number: 20150240351
    Abstract: A method of growing carbon nanostructures on a conductive substrate without the need for a vacuum or low-pressure environment provides high electrical field strengths to generate the necessary carbon ions from a feedstock gas and to promote alignment and separation of the resulting structures. In one embodiment, substantially uniform “vertical” nanostructures may be formed around the periphery of an extended wire for use in corona discharge applications or the like. Growth on a planar substrate may provide use with a variety of apparatus requiring a high specific surface conductor such as capacitors, batteries, and solar cells.
    Type: Application
    Filed: September 7, 2012
    Publication date: August 27, 2015
    Inventors: Junhong Chen, Kehan Yu, Zheng Bo, Guahua Lu
  • Publication number: 20140220479
    Abstract: Provided are nanocomposites including an iron-based composite core and a carbon shell, and methods of making and using the same.
    Type: Application
    Filed: February 5, 2014
    Publication date: August 7, 2014
    Applicant: UWM Research Foundation
    Inventors: Junhong Chen, Zhenhai Wen
  • Publication number: 20130344390
    Abstract: A composition of graphene-based nanomaterials and a method of preparing the composition are provided. A carbon-based precursor is dissolved in water to form a precursor suspension. The precursor suspension is placed onto a substrate, thereby forming a precursor assembly. The precursor assembly is annealed, thereby forming the graphene-based nanomaterials. The graphene-based nanomaterials are crystallographically ordered at least in part and configured to form a plurality of diffraction rings when probed by an incident electron beam. In one aspect, the graphene-based nanomaterials are semiconducting. In one aspect, a method of engineering an energy bandgap of graphene monoxide generally includes providing at least one atomic layer of graphene monoxide having a first energy bandgap, and applying a substantially planar strain is applied to the graphene monoxide, thereby tuning the first energy band gap to a second energy bandgap.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 26, 2013
    Inventors: Junhong Chen, Marija Gajdardziska-Josifovska, Carol Hirschmugl, Eric Mattson, Haihui Pu, Michael Weinert
  • Patent number: 8268405
    Abstract: The present invention addresses the problem of conveniently and efficiently decorating nanostructures such as carbon nanotubes with aerosol nanoparticles using electrostatic force directed assembly (“ESFDA”). ESFDA permits size selection as well as control of packing density spacing of nanoparticles. ESFDA is largely material independent allowing different compositions of such nanoparticle-nanotube structures to be produced.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: September 18, 2012
    Assignee: UWM Research Foundation, Inc.
    Inventors: Junhong Chen, Ganhua Lu
  • Publication number: 20120214172
    Abstract: The disclosure provides a field-effect transistor (FET)-based biosensor and uses thereof. In particular, to FET-based biosensors using thermally reduced graphene-based sheets as a conducting channel decorated with nanoparticle-biomolecule conjugates. The present disclosure also relates to FET-based biosensors using metal nitride/graphene hybrid sheets. The disclosure provides a method for detecting a target biomolecule in a sample using the FET-based biosensor described herein.
    Type: Application
    Filed: February 17, 2012
    Publication date: August 23, 2012
    Applicant: UWM RESEARCH FOUNDATION, INC.
    Inventors: Junhong Chen, Shun Mao, Ganhua Lu
  • Publication number: 20120207938
    Abstract: The present invention addresses the problem of conveniently and efficiently decorating nanostructures such as carbon nanotubes with aerosol nanoparticles using electrostatic force directed assembly (“ESFDA”). ESFDA permits size selection as well as control of packing density spacing of nanoparticles. ESFDA is largely material independent allowing different compositions of such nanoparticle-nanotube structures to be produced.
    Type: Application
    Filed: August 23, 2006
    Publication date: August 16, 2012
    Inventors: Junhong Chen, Ganhua Lu
  • Patent number: 8240190
    Abstract: The invention provides a novel method for the fabrication of nanomaterials, especially nanostructures arranged on a substrate with nanoparticles deposited thereon. The methods of the present invention can be used to fabricate a novel ambient-temperature gas sensor that is capable of detecting a variety of specific gasses over a range of concentrations.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: August 14, 2012
    Assignee: UWM Research Foundation, Inc.
    Inventors: Junhong Chen, Ganhua Lu
  • Publication number: 20090084163
    Abstract: The invention provides a novel method for the fabrication of nanomaterials, especially nanostructures arranged on a substrate with nanoparticles deposited thereon. The methods of the present invention can be used to fabricate a novel ambient-temperature gas sensor that is capable of detecting a variety of specific gasses over a range of concentrations.
    Type: Application
    Filed: August 28, 2008
    Publication date: April 2, 2009
    Inventors: Junhong Chen, Ganhua Lu
  • Patent number: 7504628
    Abstract: An electrode for atmospheric corona discharge apparatus provide a passive conductor whose surface is decorated with nanostructures such as carbon nanotubes. The nanotubes provide for a lower corona discharge initiation voltage and raise the possibility for reduced ozone production on corona discharge devices.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: March 17, 2009
    Inventor: Junhong Chen
  • Publication number: 20060197018
    Abstract: An electrode for atmospheric corona discharge apparatus provide a passive conductor whose surface is decorated with nanostructures such as carbon nanotubes. The nanotubes provide for a lower corona discharge initiation voltage and raise the possibility for reduced ozone production on corona discharge devices.
    Type: Application
    Filed: January 6, 2006
    Publication date: September 7, 2006
    Inventor: Junhong Chen