Patents by Inventor Noha HAKMEH

Noha HAKMEH 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 manufacturing a sulfide-based ceramic element, particularly for IR-optics applications
    Patent number: 10472287
    Abstract: A method of manufacturing a sulfide-based ceramic element, such as a transparent infrared optical element, comprises the steps of: synthesizing a sulfide powder; and sintering the powder to form the ceramic element; wherein the step of synthesizing the sulfide powder is performed by combustion in an aqueous solution, the solution comprising water as its only solvent, or containing water as its main solvent and at most 10%, and preferably at most 1% of the overall solvent mass, of one or more combustible solvents. The sulfide powder may be chosen, in particular, among ZnS, BaLa2S4, CaLa2S4.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: November 12, 2019
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1
    Inventors: Noha Hakmeh, Odile Merdrignac-Conanec, Xiang-Hua Zhang
  • METHOD OF MANUFACTURING A SULFIDE-BASED CERAMIC ELEMENT, PARTICULARLY FOR IR-OPTICS APPLICATIONS
    Publication number: 20170144934
    Abstract: A method of manufacturing a sulfide-based ceramic element, such as a transparent infrared optical element, comprises the steps of: synthesizing a sulfide powder; and sintering the powder to form the ceramic element; wherein the step of synthesizing the sulfide powder is performed by combustion in an aqueous solution, the solution comprising water as its only solvent, or containing water as its main solvent and at most 10%, and preferably at most 1% of the overall solvent mass, of one or more combustible solvents. The sulfide powder may be chosen, in particular, among ZnS, BaLa2S4, CaLa2S4.
    Type: Application
    Filed: July 8, 2015
    Publication date: May 25, 2017
    Inventors: Noha HAKMEH, Odile MERDRIGNAC-CONAMEC, Xiang-Hua ZHANG