Patents by Inventor Dafiné Ravelosona-Ramasitera

Dafiné Ravelosona-Ramasitera 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 treating materials by irradiation
    Patent number: 6605321
    Abstract: The invention provides a method of treating a material to cause the material to evolve from one phase to a more ordered phase, the method comprising an operation of irradiating the material in which the irradiating particles are suitable, by their nature and by their energy, for inducing displacements of the atoms in the material towards positions that favor ordering of the material. Advantageously, the invention also provides apparatus for magnetically recording information, the apparatus comprising a material deposited on a substrate at a temperature of less than 350° C. and that has been subjected to irradiation with irradiating particles that are suitable, by their nature and their energy, for inducing displacements of the atoms in the material towards positions that favor relaxation of the material.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: August 12, 2003
    Assignee: Centre National de la Recherche Scientifique (CNRS)
    Inventors: Dafiné Ravelosona-Ramasitera, Claude Chappert, Véronique Mathet, Harry Bernas