Patents by Inventor Nicolas Tiercelin

Nicolas Tiercelin 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).

  • Patent number: 8908422
    Abstract: A magnetoelectric memory element includes a magnetic element having an easy magnetization axis aligned along a first axis, means for applying to the magnetic element a magnetic polarization field aligned along a second axis not parallel to the first axis, a piezoelectric or electrostrictive substrate mechanically coupled with the magnetic element, and first and second electrodes arranged to apply an electrical field to the substrate so that the substrate exerts, on said magnetic element, a non-isotropic mechanical stress of a main direction generally oriented along a distinct third axis coplanar with the first and second axes. The magnetic element exhibits, by a combined effect of the magnetic polarization field and the easy magnetization axis, two distinct states of stable equilibrium of magnetization, corresponding to two not mutually opposed magnetization directions. The non-isotropic mechanical stress is sufficiently intense to induce a switchover between the two distinct states.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: December 9, 2014
    Assignees: Centre National de la Recherche Scientifique, Ecole Centrale de Lille Cite Scientifique
    Inventors: Nicolas Tiercelin, Yannick Dusch, Philippe Jacques Pernod, Vladimir Preobrazhensky
  • Publication number: 20130163313
    Abstract: Magnetoelectric memory element comprising: a magnetic element (ELM) that has two equilibrium directions (P1, P2) in which its magnetization is stable, these direction not being mutually opposed; a piezoelectric or electrostrictive substrate (SP) mechanically coupled to said magnetic element; and a least a first electrode (EL1) and a second electrode (EL2), arranged so as to apply an electric field to the piezoelectric or electrostrictive substrate such that said substrate exerts on said magnetic element a non-isotropic mechanical stress, able to induce switching of the magnetization state of said magnetic element by magnetostrictive coupling. Memory cell comprising such a memory element. Direct-access non-volatile memory and programmable logic circuit comprising a plurality of such memory cells.
    Type: Application
    Filed: June 16, 2011
    Publication date: June 27, 2013
    Applicants: ECOLE CENTRALE DE LILLE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Nicolas Tiercelin, Yannick Dusch, Philippe Jacques Pernod, Vladimir Preobrazhensky