Patents by Inventor William E. Harty

William E. Harty 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).

  • Method of making electroluminescent phosphor films
    Patent number: 4725344
    Abstract: An electroluminescent film of an activated alkaline earth metal sulfide phosphor is produced by a method utilizing low temperatures for substrate protection and achieving excellent crystallinity and enhanced brightness. A layer of an alkaline earth metal halide and a suitable activatior is deposited on the substrate, heated to melt the halide and treated with gaseous hydrogen sulfide to form the phosphor. A precursor for the halide may be deposited on the substrate heated to melting temperature and treated with gaseous hydrogen halide to form the halide in-situ.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: February 16, 1988
    Assignee: RCA Corporation
    Inventors: Perry N. Yocom, James Kane, William E. Harty
  • High density information disc lubricants
    Patent number: 4416789
    Abstract: High density information discs comprising a conductive carbon-loaded polyvinylchloride disc is lubricated with a fractionated methyl alkyl siloxane lubricant which contains a long chain alkyl substituted betaine.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: November 22, 1983
    Assignee: RCA Corporation
    Inventors: Igal Shidlovsky, William E. Harty