Patents by Inventor Cesare Umeton

Cesare Umeton 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).

  • Electro-optical tunable filter and manufacturing process
    Patent number: 7925124
    Abstract: An electro-optical filter made of a support in which an optical guide with a diffused channel waveguide and of a cover, that are created in borosilicate glass, and which includes a gap obtained by the use of suitable spacers, filled with a grating constituted of alternating strips of polymer and liquid crystal called POLICRYPS (Polymer Liquid CRYstal Polymer Slices), and with first electrodes that are coplanar to the support and next to the optical guide with a channel, that electrically control the grating making the filter tunable, and a manufacturing process.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: April 12, 2011
    Assignees: Universita Della Calabria, Universita Degli Studi Di Roma “La Sapienza”, CNR Consiglio Nazionale Delle Ricerche
    Inventors: Antonio D'Alessandro, Romeo Beccherelli, Cesare Umeton, Rita Asquini, Domenico Donisi, Luciano De Sio, Roberto Caputo
  • Electro-Optical Tunable Filter and Manufacturing Process
    Publication number: 20090317032
    Abstract: An electro-optical filter made of a support in which an optical guide with a diffused channel waveguide and of a cover, that are created in borosilicate glass, and which includes a gap obtained by the use of suitable spacers, filled with a grating constituted of alternating strips of polymer and liquid crystal called POLICRYPS (Polymer Liquid CRYstal Polymer Slices), and with first electrodes that are coplanar to the support and next to the optical guide with a channel, that electrically control the grating making the filter tunable, and a manufacturing process.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 24, 2009
    Applicants: Universita della Calabria, Universita Degli Studi di Roma "La Sapienza", CNR-Centro Nazionale delle Ricerche
    Inventors: Antonio D'Alessandro, Romeo Beccherelli, Cesare Umeton, Rita Asquini, Domenico Donisi, Luciano De Sio, Roberto Caputo
  • Holographic diffraction grating, process for its preparation and opto-electronic devices incorporating it
    Publication number: 20070019152
    Abstract: Composite polymer/liquid crystal material having a holographic grating structure formed by an alternating ordered succession of polymer layers and nematic liquid crystal layers. The nematic liquid crystal layers comprise an ordered nematic monophase region which is substantially free from liquid crystal droplets.
    Type: Application
    Filed: July 8, 2004
    Publication date: January 25, 2007
    Inventors: Robert Caputo, Cesare Umeton, Alessandro Veltri, Audrey Sukhov, Nelson Tabiryan