Patents by Inventor Bernard Doudin
Bernard Doudin 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: 11434882Abstract: Disclosed is a device including at least one circulating zone and at least one fluid including at least one more-paramagnetic liquid and at least one less-paramagnetic liquid forming a liquid-liquid interphase, the device including at least one element generating, in the circulating zone, a magnetic field, wherein the less-paramagnetic liquid is surrounded by the more-paramagnetic liquid in the circulating zone or wherein the more-paramagnetic liquid is surrounded by the less-paramagnetic liquid in the circulating zone. Also disclosed is a method including circulating at least one less-paramagnetic liquid inside one or more circulating zones of a device including at least one circulating zone and at least one more-paramagnetic liquid in the circulating zone.Type: GrantFiled: January 19, 2018Date of Patent: September 6, 2022Assignees: UNIVERSITÉ DE STRASBOURG, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, THE PROVOST, FELLOWS, FOUNDATION SCHOLARS, AND THE OTHER MEMBERS OF BOARD, OF THE COLLEGE OF THE HOLY AND UNDIVIDED TRINITY OF QUEEN ELIZABETH COLLEGE GREENInventors: Thomas Hermans, John Michael David Coey, Peter Dunne, Bernard Doudin
-
Publication number: 20210332815Abstract: Disclosed is a device including at least one circulating zone and at least one fluid including at least one more-paramagnetic liquid and at least one less-paramagnetic liquid forming a liquid-liquid interphase, the device including at least one element generating, in the circulating zone, a magnetic field, wherein the less-paramagnetic liquid is surrounded by the more-paramagnetic liquid in the circulating zone or wherein the more-paramagnetic liquid is surrounded by the less-paramagnetic liquid in the circulating zone. Also disclosed is a method including circulating at least one less-paramagnetic liquid inside one or more circulating zones of a device including at least one circulating zone and at least one more-paramagnetic liquid in the circulating zone.Type: ApplicationFiled: January 19, 2018Publication date: October 28, 2021Inventors: Thomas HERMANS, John Michael David COEY, Peter DUNNE, Bernard DOUDIN
-
Patent number: 9849437Abstract: A method is provided for modifying a surface of a solid conducting material, which includes applying a potential difference between this surface and a surface of another conducting solid material positioned facing it, and wherein, simultaneously, the surface (S) is put into contact with a liquid medium comprising in solution triarylamines (I): while subjecting these triarylamines (I) to electromagnetic radiation, at least partly converting them at into triarylammonium radicals. Also provided is a conducting device which includes two conducting metal materials, the surfaces of which, (S) and (S?) respectively, are electrically interconnected through an organic material comprising conducting fibrillar organic supramolecular species comprising an association of triarylamines of formula (I).Type: GrantFiled: April 20, 2015Date of Patent: December 26, 2017Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.), UNIVERSITE DE STRASBOURGInventors: Nicolas Giuseppone, Jean-François Dayen, Vina Faramarzi, Emilie Moulin, Frederic Niess, Bernard Doudin
-
Patent number: 9594264Abstract: An electrical device in provided having two electrodes separated from one another, wherein one temperature controlled electronic spin-state transition particle is in direct contact with each of the two electrodes, the particle being of the ionic type and containing a transition metal bearing a cationic charge.Type: GrantFiled: February 7, 2012Date of Patent: March 14, 2017Assignee: Centre National de la Recherche Scientifique—CNRS-Inventors: Jean-François Letard, Céline Etrillard, Bernard Doudin, Vina Faramarzi, Jean-François Dayen
-
Patent number: 9349958Abstract: The invention relates to the use of zwitterionic molecules for forming a hole or electron transport layer. The preferred zwitterionic molecules of the invention are derivatives of p-benzoquinonemonoimines. The invention is useful in the field of electronic devices in particular.Type: GrantFiled: August 23, 2011Date of Patent: May 24, 2016Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE STRASBOURG, UNIVERSITY OF NEBRASKA LINCOLNInventors: Bernard Doudin, Pierre Braunstein, Lucie Routaboul, Guillaume Dalmas, Zhengzheng Zhang, Peter Dowben
-
Publication number: 20150298092Abstract: A method is provided for modifying a surface of a solid conducting material, which includes applying a potential difference between this surface and a surface of another conducting solid material positioned facing it, and wherein, simultaneously, the surface (S) is put into contact with a liquid medium comprising in solution triarylamines (I): while subjecting these triarylamines (I) to electromagnetic radiation, at least partly converting them at into triarylammonium radicals. Also provided is a conducting device which includes two conducting metal materials, the surfaces of which, (S) and (S?) respectively, are electrically interconnected through an organic material comprising conducting fibrillar organic supramolecular species comprising an association of triarylamines of formula (I).Type: ApplicationFiled: April 20, 2015Publication date: October 22, 2015Inventors: Nicolas GIUSEPPONE, Jean-François DAYEN, Vina FARAMARZI, 1c impas MOULIN, Frederic NIESS, Bernard DOUDIN
-
Patent number: 9028722Abstract: A method is provided for modifying a surface of a solid conducting material, which includes applying a potential difference between this surface and a surface of another conducting solid material positioned facing it, and wherein, simultaneously, the surface (S) is put into contact with a liquid medium comprising in solution triarylamines (I): while subjecting these triarylamines (I) to electromagnetic radiation, at least partly converting them at into triarylammonium radicals. Also provided is a conducting device which includes two conducting metal materials, the surfaces of which, (S) and (S?) respectively, are electrically interconnected through an organic material comprising conducting fibrillar organic supramolecular species comprising an association of triarylamines of formula (I).Type: GrantFiled: March 15, 2012Date of Patent: May 12, 2015Assignees: Centre National de la Recherche Scientifique (C.N.R.S.), Universite de StrasbourgInventors: Nicolas Giuseppone, Jean-François Dayen, Vina Faramarzi, Emilie Moulin, Frederic Niess, Bernard Doudin
-
Publication number: 20130306936Abstract: An electrical device in provided having two electrodes separated from one another, wherein one temperature controlled electronic spin-state transition particle is in direct contact with each of the two electrodes, the particle being of the ionic type and containing a transition metal bearing a cationic charge.Type: ApplicationFiled: February 7, 2012Publication date: November 21, 2013Applicant: Centre National De La Recherche Scientifique - CNRS -Inventors: Jean-Francois Letard, Celine Etrillard, Bernard Doudin, Vina Faramarzi, Jean-Francois Dayen
-
Publication number: 20130193426Abstract: The invention relates to the use of zwitterionic molecules for forming a hole or electron transport layer. The preferred zwitterionic molecules of the invention are derivatives of p-benzoquinonemonoimines. The invention is useful in the field of electronic devices in particular.Type: ApplicationFiled: August 23, 2011Publication date: August 1, 2013Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITY OF NEBRASKA LINCOLN, UNIVERSITE DE STRASBOURGInventors: Bernard Doudin, Pierre Braunstein, Lucie Routaboul, Guillaume Dalmas, Zhengzheng Zhang, Peter Dowben
-
Publication number: 20130037307Abstract: The present invention relates to a method for modifying a surface of a solid conducting material, which comprises a step (E), in which a potential difference is applied between this surface and a surface of another conducting solid material positioned facing it, and wherein, simultaneously, said surface (S) is put into contact with a liquid medium comprising in solution triarylamines (I): while subjecting these triarylamines (I) to electromagnetic radiation, least partly converting them at into triarylammonium radicals. The invention also relates to a conducting device comprising two conducting metal materials, the surfaces of which, (S) and (S?) respectively, are electrically interconnected through an organic material comprising conducting fibrillar organic supramolecular species comprising an association of triarylamines of formula (I).Type: ApplicationFiled: March 15, 2012Publication date: February 14, 2013Applicant: Universite de StrasbourgInventors: Nicolas GIUSEPPONE, Jean-François Dayden, Vina Faramarzi, Emilie Moulin, Frederic Niess, Bernard Doudin
-
Patent number: 7358846Abstract: The present invention provides systems and method utilizing magnetoelectric materials such as Cr2O3 to construct tunneling magnetoresistence and/or giant magnetoresistence structures for memory and/or logical circuitry. An applied voltage differential induces a magnetic moment in the magnetoelectric material, which in turn tunes an exchange field between it and one or more adjacent ferromagnetic layers. The resulting magnetoresistence of the device may be measured. Devices in accordance with the present invention may be utilized for MRAM read heads, memory storage cells and/or logical circuitry such as XOR or NXOR devices.Type: GrantFiled: June 1, 2006Date of Patent: April 15, 2008Inventor: Bernard Doudin
-
Publication number: 20070014143Abstract: The present invention provides systems and method utilizing magnetoelectric materials such as Cr2O3 to construct tunneling magnetoresistence and/or giant magnetoresistence structures for memory and/or logical circuitry. An applied voltage differential induces a magnetic moment in the magnetoelectric material, which in turn tunes an exchange field between it and one or more adjacent ferromagnetic layers. The resulting magnetoresistence of the device may be measured. Devices in accordance with the present invention may be utilized for MRAM read heads, memory storage cells and/or logical circuitry such as XOR or NXOR devices.Type: ApplicationFiled: June 1, 2006Publication date: January 18, 2007Inventor: Bernard Doudin
-
Application of high spin polarization materials in two terminal non-volatile bistable memory devices
Patent number: 6657888Abstract: Disclosed are two terminal bistable memory cells having least two high-spin polarization magnetic material junctions which are separated from one another by electron trap site defect containing insulator. The two terminal bistable memory cells demonstrate stable, low current readable, hysteretic resistance states which are set by the flow of a relatively high, (eg. a milliamp or less), plus or minus polarity D.C. current therethrough, which resistance is monitored by lower magnitude A.C. or D.C. current flow therethrough. Preferred cells have at least one CrO2/Cr2O3/CrO2 sequence but typically have multiple CrO2/Cr2O3/CrO2 sequences in series.Type: GrantFiled: April 30, 2002Date of Patent: December 2, 2003Assignee: Board of Regents of the University of NebraskaInventors: Bernard Doudin, Andrei Sokolov, Cheol-Soo Yang, Lu Yuan, Sy-Hwang Liou