Patents by Inventor Lap Kin Cheng

Lap Kin Cheng 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).

  • Publication number: 20080135091
    Abstract: The present invention is directed to a process for producing solar panels having an antireflective film designed to capture more incident light. The film increases the transmission of light through the film and a substrate by reducing the amount of light reflected and by minimizing optical loss in the film and at the interfaces. By allowing more incident light to transmit to the underlying solar cells, the solar panel can produce more electricity, thereby operating at a higher efficiency. The process uses lamination, particularly thermal lamination, to apply a light capturing film onto the front surface of a solar panel. The light capturing film comprises of a cross-linked fluoropolymer antireflective coating on top of an optically clear carrier film.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 12, 2008
    Inventors: Lap Kin Cheng, Jose Manuel Rodriguez-Parada
  • Patent number: 6864039
    Abstract: A photosensitive printing element comprising a support; and a photopolymerizable layer comprising a photopolymerizable composition comprising at least one elastomeric binder, at least one monomer, an initiator having sensitivity to actinic radiation, and at least one photobleachable compound having sensitivity to actinic radiation; is described. Preferred photobleachable compounds are unsubstituted or substituted naphthylvinyl pyridines; unsubstituted or substituted styrylquinolines; diphenyl maleic anhydride; isomers of any of the foregoing; derivatives of any of the foregoing; and any combination of the foregoing. Such photosensitive printing elements are used to prepare flexographic printing plates and are useful in enhancing resolution and differentiating image areas from non-image areas in images produced therefrom by reducing the deleterious effect of scattered light.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: March 8, 2005
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Lap Kin Cheng, Lap-Tak Andrew Cheng
  • Publication number: 20030219681
    Abstract: A photosensitive printing element comprising a support; and a photopolymerizable layer comprising a photopolymerizable composition comprising at least one elastomeric binder, at least one monomer, an initiator having sensitivity to actinic radiation, and at least one photobleachable compound having sensitivity to actinic radiation; is described. Preferred photobleachable compounds are unsubstituted or substituted naphthylvinyl pyridines; unsubstituted or substituted styrylquinolines; diphenyl maleic anhydride; isomers of any of the foregoing; derivatives of any of the foregoing; and any combination of the foregoing. Such photosensitive printing elements are used to prepare flexographic printing plates and are useful in enhancing resolution and differentiating image areas from non-image areas in images produced therefrom by reducing the deleterious effect of scattered light.
    Type: Application
    Filed: April 15, 2003
    Publication date: November 27, 2003
    Inventors: Lap Kin Cheng, Lap-Tak Andrew Cheng