Patents by Inventor Cheng-Yu Lai

Cheng-Yu Lai 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: 11958956
    Abstract: Additive-polymer precursor materials for filaments (e.g., for three-dimensional (3D) printing) are provided, as well as methods of fabricating and using the same. One or more two-dimensional (2D) additive materials (e.g., nano materials, such as nanosheets) can be mixed with a polymer base to give an additive-polymer precursor composite material. The additive material can be dissolved in a first solvent to give an additive solution, and the polymer can be dissolved in a second solvent to give a polymer base. The additive solution can be mixed with the polymer base to give a mixed solution. Solvent casting can then be performed on the mixed solution to evaporate the solvent(s) and give the additive-polymer precursor composite material, which can have a layered structure.
    Type: Grant
    Filed: July 21, 2023
    Date of Patent: April 16, 2024
    Assignee: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
    Inventors: Daniela Rodica Radu, Cheng-Yu Lai, Melissa Venedicto, Faizan Syed, Dakota Aaron Thomas, Samuel Oyon
  • Patent number: 11862854
    Abstract: Antenna arrays, antenna elements for said arrays, and methods of fabricating and using the same are provided. Antenna arrays can be operated at multiple frequencies, such as at two different frequencies for Radio Detection And Ranging (RADAR) communication and for imaging applications. Each antenna element can include a driven patch that is excited directly and a parasitic patch that is excited by the driven patch.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: January 2, 2024
    Assignee: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
    Inventors: Asif Hassan, Elias Alwan, Daniela Rodica Radu, Cheng-Yu Lai
  • Patent number: 9951107
    Abstract: The invention relates to compositions of vault complexes containing recombinant membrane lytic proteins, such as an adenovirus protein VI lytic domain, and methods of using the vault complexes to facilitate delivery and entry of a biomolecule into a cell or subject.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: April 24, 2018
    Assignees: The Regets of the University of California, The Scripps Research Institute
    Inventors: Leonard H. Rome, Valerie A. Kickhoefer, Glen Nemerow, Cheng-Yu Lai, Christopher Wiethoff, Mu Han
  • Patent number: 9634161
    Abstract: Thin films comprising crystalline Fe2XY4, wherein X is Si or Ge and Y is S or Se, are obtained by coating an ink comprised of nanoparticle precursors of Fe2XY4 and/or a non-particulate amorphous substance comprised of Fe, X and Y on a substrate surface and annealing the coating. The coated substrate thereby obtained has utility as a solar absorber material in thin film photovoltaic devices.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: April 25, 2017
    Assignee: DELAWARE STATE UNIVERSITY
    Inventors: Daniela Rodica Radu, Cheng-Yu Lai
  • Publication number: 20160068576
    Abstract: The invention relates to compositions of vault complexes containing recombinant membrane lytic proteins, such as an adenovirus protein VI lytic domain, and methods of using the vault complexes to facilitate delivery and entry of a biomolecule into a cell or subject.
    Type: Application
    Filed: September 24, 2015
    Publication date: March 10, 2016
    Inventors: Leonard H. Rome, Valerie A. Kickhoefer, Glen Nemerow, Cheng-Yu Lai, Christopher Wiethoff, Mu Han
  • Patent number: 9181312
    Abstract: The invention relates to compositions of vault complexes containing recombinant membrane lytic proteins, such as an adenovirus protein VI lytic domain, and methods of using the vault complexes to facilitate delivery and entry of a biomolecule into a cell or subject.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: November 10, 2015
    Assignees: The Regents of the University of California, The Scripps Research Institute
    Inventors: Leonard H. Rome, Valerie A. Kickhoefer, Glen R. Nemerow, Cheng-Yu Lai, Chris M. Weithoff, Mu Ri Han
  • Patent number: 9130474
    Abstract: A power transforming apparatus implements a transformation of an energy signal and comprises a control unit, a pulse width modulation (PWM) unit, a transformation unit, and a slope compensation unit. The control unit outputs a target power signal. The PWM unit is coupled with the control unit and generates a switch signal. The transformation unit is coupled with the PWM unit, and implements a power transforming of the energy signal to output an energy transformation signal according to the switch signal. The slope compensation unit is coupled with the control unit and the PWM unit, and implements a slope compensation, according to the target power signal and a feedback signal, to output a compensation signal to the PWM unit. The switch signal is generated according to the target power signal and the compensation signal.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: September 8, 2015
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yun-Chi Hung, Chih-Hung Hsiao, Cheng-Yu Lai
  • Publication number: 20150061598
    Abstract: There is a composition comprising mesoporous silica particles. The particles may have a MCM-48 three-dimensional framework and be characterized by having a surface area of about 300 to 2,000 square meters per gram, a pore volume of about 0.5 to 1.5 cubic centimeters per gram, an average pore diameter dimension of about 1 to 20 nanometers, and an average particle size of about 5 to 2,000 nanometers based on the average diameter of the silica particles. There is also a lithium-sulfur cell comprising an article comprising mesoporous silica particles. The cell also comprises a negative electrode, a circuit coupled with the negative electrode, a lithium-containing electrolyte medium and an interior wall of the cell. There are also associated methods of making and methods of using the silica particles and the cell.
    Type: Application
    Filed: March 8, 2013
    Publication date: March 5, 2015
    Inventor: Cheng-Yu Lai
  • Publication number: 20150017486
    Abstract: There is a composition comprising templated carbon. The templated carbon has a carbon microstructure that is complementary with a three-dimensional framework of MCM-48 silica particles used in a process for making the templated carbon. There is also an electrode including a circuit contact and a cathode composition. The cathode composition comprises sulfur compound and templated carbon. The templated carbon in the cathode composition has a carbon microstructure that is complementary with a three-dimensional framework of MCM-48 silica particles used in a process for making the templated carbon.
    Type: Application
    Filed: March 8, 2013
    Publication date: January 15, 2015
    Applicant: EI DU PONT DE NEMOURS AND COMPANY
    Inventor: Cheng-Yu Lai
  • Publication number: 20140326316
    Abstract: Thin films comprising crystalline Fe2XY4, wherein X is Si or Ge and Y is S or Se, are obtained by coating an ink comprised of nanoparticle precursors of Fe2XY4 and/or a non-particulate amorphous substance comprised of Fe, X and Y on a substrate surface and annealing the coating. The coated substrate thereby obtained has utility as a solar absorber material in thin film photovoltaic devices.
    Type: Application
    Filed: May 1, 2014
    Publication date: November 6, 2014
    Applicant: Delaware State University
    Inventors: Daniela Rodica Radu, Cheng-Yu Lai
  • Publication number: 20140313799
    Abstract: A power transforming apparatus implements a transformation of an energy signal and comprises a control unit, a pulse width modulation (PWM) unit, a transformation unit, and a slope compensation unit. The control unit outputs a target power signal. The PWM unit is coupled with the control unit and generates a switch signal. The transformation unit is coupled with the PWM unit, and implements a power transforming of the energy signal to output an energy transformation signal according to the switch signal. The slope compensation unit is coupled with the control unit and the PWM unit, and implements a slope compensation, according to the target power signal and a feedback signal, to output a compensation signal to the PWM unit. The switch signal is generated according to the target power signal and the compensation signal.
    Type: Application
    Filed: August 15, 2013
    Publication date: October 23, 2014
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Yun-Chi HUNG, Chih-Hung HSIAO, Cheng-Yu LAI
  • Publication number: 20130344564
    Abstract: The invention relates to compositions of vault complexes containing recombinant membrane lytic proteins, such as an adenovirus protein VI lytic domain, and methods of using the vault complexes to facilitate delivery and entry of a biomolecule into a cell or subject.
    Type: Application
    Filed: September 4, 2013
    Publication date: December 26, 2013
    Applicants: The Scripps Research Institute, The Regents of the University of California
    Inventors: Leonard H. Rome, Valerie A. Kickhoefer, Glen R. Nemerow, Cheng-Yu Lai, Chris M. Weithoff, Mu Ri Han
  • Patent number: 8551781
    Abstract: The invention relates to compositions of vault complexes containing recombinant membrane lytic proteins, such as an adenovirus protein VI lytic domain, and methods of using the vault complexes to facilitate delivery and entry of a biomolecule into a cell or subject.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: October 8, 2013
    Assignees: The Regents of the University of California, The Scripps Research Institute
    Inventors: Leonard H. Rome, Valerie A. Kickhoefer, Glen R. Nemerow, Cheng-Yu Lai, Christopher M. Wiethoff, Mu Ri Han
  • Patent number: 8470636
    Abstract: The present invention relates to aqueous processes to make metal chalcogenide nanoparticles that are useful precursors to copper zinc tin sulfide/selenide and copper tin sulfide/selenide. In addition, this invention provides processes for preparing crystalline particles from the metal chalcogenide nanoparticles, as well as processes for preparing inks from both the metal chalcogenide nanoparticles and the crystalline particles.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: June 25, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Daniela Rodica Radu, Lynda Kaye Johnson, Cheng-Yu Lai, Meijun Lu, Irina Malajovich
  • Publication number: 20120288987
    Abstract: The present invention relates to aqueous processes to make metal chalcogenide nanoparticles that are useful precursors to copper zinc tin sulfide/selenide and copper tin sulfide/selenide. In addition, this invention provides processes for preparing crystalline particles from the metal chalcogenide nanoparticles, as well as processes for preparing inks from both the metal chalcogenide nanoparticles and the crystalline particles.
    Type: Application
    Filed: November 22, 2010
    Publication date: November 15, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Daniela Rodica Radu, Lynda Kaye Johnson, Cheng-Yu Lai, Meijun Lu, Irina Malajovich
  • Patent number: 8246999
    Abstract: The invention provides an article comprising, a mesoporous silicate matrix, such as a particle, having one or more pores; and one or more releasable caps obstructing one or more of the pores. The articles are useful as delivery vehicles for encapsulated agents such as therapeutic agents, polynucleotides, polypeptides and the like.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: August 21, 2012
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Victor Shang-Yi Lin, Cheng-Yu Lai, Srdija Jeftinija, Dusan M. Jeftinija
  • Publication number: 20120180852
    Abstract: The invention relates to a chemical etching composition and to methods to produce a photovoltaic cell with transparent regions. The methods comprise a step to locally dispense an etching composition on the photovoltaic cell in a pattern, or adjacent to the edge thereof; an optional step to apply heat to the cell; and a step to remove the etching composition. The methods are further characterized by the chemical removal of one or more chemically distinctive layers of the photovoltaic cell where the etching composition is applied. The methods may be used to produce a thin film photovoltaic panel.
    Type: Application
    Filed: January 13, 2011
    Publication date: July 19, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: LAP-TAK ANDREW CHENG, ZHE CHENG, CHENG-YU LAI, MEIJUN LU
  • Publication number: 20120180307
    Abstract: This invention relates to a process to make a lithium-manganese-titanium-containing compound, which can be used as an electrode material in a lithium ion battery. The process dissolves the constituent materials in a polar, organic solvent to form a compound described by the formula LiMn(2-x)Ti(x)O4.
    Type: Application
    Filed: January 13, 2011
    Publication date: July 19, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: CHENG-YU LAI
  • Publication number: 20110201112
    Abstract: The invention relates to compositions of vault complexes containing recombinant membrane lytic proteins, such as an adenovirus protein VI lytic domain, and methods of using the vault complexes to facilitate delivery and entry of a biomolecule into a cell or subject.
    Type: Application
    Filed: November 19, 2010
    Publication date: August 18, 2011
    Applicant: The Regents of the University of California
    Inventors: Leonard H. Rome, Valerie A. Kickhoefer, Glen R. Nemerow, Cheng-Yu Lai, Christopher M. Wiethoff, Mu Ri Han
  • Publication number: 20110033548
    Abstract: Degradable, crosslinked aminated dextran microspheres are described. The microspheres contain aminated dextran crosslinked with a crosslinking agent having two or more functional groups that are capable of reacting with the primary amine groups of the aminated dextran to form covalent bonds. The degradable, crosslinked aminated dextran microspheres may be useful for temporary therapeutic embolization and drug delivery.
    Type: Application
    Filed: August 3, 2010
    Publication date: February 10, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Cheng-Yu LAI, Daniela Rodica Radu