Patents by Inventor Jong S. Wey

Jong S. Wey 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).

  • System for monitoring and controlling supersaturation in AgX precipitations
    Patent number: 5422825
    Abstract: This invention is a system and associated method for monitoring and controlling independently the supersaturation and halide ion concentration, during the precipitation of a silver halide emulsion in a precipitation vessel. The introduction of a silver salt is controlled in accordance with a predetermined program, which in turn is responding to the supersaturation signal measured in the vessel by a supersaturation sensor. The sensor is comprised of a true silver ion electrode and a silver-silver halide electrode. The introduction of the halide salt is controlled in accordance with the predetermined program, which in turn is responding to the halide ion concentration signal measured in the vessel by a silver-silver halide electrode and a reference electrode.
    Type: Grant
    Filed: August 17, 1993
    Date of Patent: June 6, 1995
    Assignee: Eastman Kodak Company
    Inventors: Mitchell M. Lin, Jong S. Wey