Patents by Inventor Attilio Di Passio

Attilio Di Passio 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: 4533610
    Abstract: In order to deposit an antireflection layer between the phosphor strips of the screen of a color television tube and on the face-plate flange, a photosensitive substance is applied on the internal face of the face-plate and is then exposed to radiation-hardening at the phosphor-strip locations, whereupon the non-hardened portions are removed. The flange and face-plate are then coated with the antireflection layer, H.sub.2 O.sub.2 is deposited in order to destroy the hardened strips which are finally removed together with their antireflection coating. Deionized water, for ensuring that the film of hardened photosensitive material which has formed on the flange is made uniform, is spray-deposited on the flange prior to deposition of photosensitive substance. After deposition of the antireflection layer, deionized water is also sprayed onto this layer prior to application of the oxygenated water. The destructive activity of the oxygenated water on the film is thus reduced.
    Type: Grant
    Filed: June 21, 1984
    Date of Patent: August 6, 1985
    Assignee: Videocolor
    Inventors: Attilio Di Passio, Antimo Pezzulo