Patents by Inventor Yuwen Zhao

Yuwen Zhao 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).

  • High Frequency Soft Magnetic Materials With Laminated Submicron Magnetic Layers And The Methods To Make Them
    Publication number: 20080096009
    Abstract: A soft magnetic nanocomposites (SMNC) which contains laminated thin flakes of magnetic materials coated with an insulating material wherein the thickness of the flake is from 100 nm to 20 ?m. The invention also relates to a process to make laminated thin flakes of magnetic materials.
    Type: Application
    Filed: June 7, 2005
    Publication date: April 24, 2008
    Applicant: UNIVERSITY OF DELAWARE
    Inventors: John Xiao, Yuwen Zhao, Xiaokai Zhang
  • Temperature Synthesis of Hexagonal Zns Nanocrystals as Well as Derivatives with Different Transition Metal Dopants Using the Said Method
    Publication number: 20080090394
    Abstract: A method to fabricate semiconductor nanocrystals which comprises dissolving a metal source in a first solvent that contains at least one functional —OH group to form a mixture and heating the mixture to form a solution 1 and dissolving a X source in a second solvent which contains at least one functional —OH group, to form a solution 2 and mixing solution 2 and then combining solution 2 into solution 1, and heating and separating the solution out, to produce semiconductor nanocrystals.
    Type: Application
    Filed: August 24, 2005
    Publication date: April 17, 2008
    Applicant: UNIVERSITY OF DELAWARE
    Inventors: John Q. Xiao, Yuwen Zhao
  • Magnetic field assisted synthesis of magnetic nanoparticles
    Publication number: 20070277649
    Abstract: A process for the production of magnetic nanoparticles having uniform size and shape in which a magnetic metallic substance selected from magnetic transitional metals, their alloys, and intermetallic alloys with non-magnetic metals, is dissolved in a non-aqueous medium, reacted with a reducing agent, in solution and the reaction mixture is subjected to an external magnetic field.
    Type: Application
    Filed: August 31, 2005
    Publication date: December 6, 2007
    Applicant: UNIVERSITY OF DELAWARE
    Inventors: John Xiao, Yuwen Zhao