Patents by Inventor Ion F. Nicolau

Ion F. Nicolau 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).

  • Pyroelectric detector and vidicon
    Patent number: 4492857
    Abstract: The invention relates to an ammonium phosphotellurate pyroelectric vidicon and detector.The pyroelectric detector comprises a dielectric material inserted between two parallel electrodes, said material being a monodomain ferroelectric monocrystal having a polaraaxis, wherein the said material is ammonium phosphotellurate of chemical formula:Te(OH.sub.6), 2[NH.sub.4 H.sub.2 PO.sub.4 ], [(NH.sub.4).sub.2 HPO.sub.4 ].
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: January 8, 1985
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Marie-Therese Averbuch, Andre Durif-Varambon, Sylviane Gauthier, Ion F. Nicolau, Jean C. Peuzin
  • Process for the preparation of alpha mercuric iodide monocrystals
    Patent number: 4347230
    Abstract: Process for the preparation of alpha mercuric iodide monocrystals by growth in solution, wherein an alpha mercuric iodide solution in an organic sulphoxide is used and wherein growth is brought about on a nucleus located in a cavity able to block the growth defects of the monocrystal.The invention also relates to the alpha mercuric iodide monocrystals with octahedral-pinacoid habits obtained.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: August 31, 1982
    Assignee: Commissariat a l'Energie Atomique
    Inventor: Ion F. Nicolau