Patents by Inventor Jun S. Park

Jun S. Park 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: 5664075
    Abstract: A process for enabling a printer to separate print jobs while using a protocol for receiving page description data that does not have an end-of-file indicator defined. It is assumed that the each job received by the printer has a first packet with a size of 1 byte, and a content of one null character, a number of data packets having 512 bytes each, and a last packet having the remainder of the bytes of the job which usually will number between 1 and 512 bytes, exclusive. This process also assumes that the printer can send a status packet back to the originator of the data packets, a print server, verifying the receipt of a packet. The system now can generate a hard stop between jobs by having the printer verify the receipt of the previous packet for every current packet received, resulting in a flow of status packets back to the server that is one packet out of phase.
    Type: Grant
    Filed: October 17, 1995
    Date of Patent: September 2, 1997
    Assignee: Xerox Corporation
    Inventors: Jun S. Park, Jack W. Tung
  • Patent number: 5061767
    Abstract: A polymer composite, a method of making a polymer composite and a polymer composite membrane. The polymer composite comprises a uniform dispersion of hydrophobic polymeric particles in a continuous phase of a hydrophilic polymer. The new method of forming a polymer composite includes the formation of a concentrated emulsion of a hydrophilic monomer and a hydrophobic monomer and heating the concentrated emulsion at a predetermined temperature. The polymer composites of this invention may be useful as permselective membranes.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: October 29, 1991
    Assignee: State University of New York
    Inventors: Eli Ruckenstein, Jun S. Park