Patents by Inventor Carlos Vargas-Aburto

Carlos Vargas-Aburto 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).

  • Liquid crystal alignment using electron beam exposure
    Patent number: 7105845
    Abstract: An apparatus (10, 10?) for producing an alignment surface on an associated substrate (12, 12?) of a liquid crystal display. An electron source (40) produces a collimated electron beam (50). A substrate support (20, 20?) supports the associated substrate (12, 12?) with a surface normal (80) of the substrate arranged at a preselected angle (?) relative to the collimated electron beam (50). The collimated electron beam (50) is rastered across the associated substrate (12, 12?) at the preselected angle (?) while the substrate moves through the electron beam.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: September 12, 2006
    Assignee: Kent State University
    Inventors: Satyendra Kumar, Carlos Vargas-Aburto, Qingbing Wang
  • Liquid crystal alignment using electron beam exposure
    Publication number: 20060000986
    Abstract: An apparatus (10, 10?) for producing an alignment surface on an associated substrate (12, 12?) of a liquid crystal display. An electron source (40) produces a collimated electron beam (50). A substrate support (20, 20?) supports the associated substrate (12, 12?) with a surface normal (80) of the substrate arranged at a preselected angle (?) relative to the collimated electron beam (50). The collimated electron beam (50) is rastered across the associated substrate (12, 12?) at the preselected angle (?) while the substrate moves through the electron beam.
    Type: Application
    Filed: July 2, 2004
    Publication date: January 5, 2006
    Inventors: Satyendra Kumar, Carlos Vargas-Aburto, Qingbing Wing
  • Radiation thickened sheet molding compounds
    Publication number: 20040176503
    Abstract: The present invention provides a compound and process for manufacturing thickened sheet-molding compounds wherein a thermoset molding resin is partially crosslinked by irradiation with high-energy electrons. In this process, the structure of the resin is changed from a viscous liquid to a viscoelastic gel, which acts like a thickened molding compound.
    Type: Application
    Filed: December 2, 2003
    Publication date: September 9, 2004
    Applicant: Kent State University
    Inventors: Michael A. Czayka, Carlos Vargas-Aburto, Roberto M. Uribe