Patents by Inventor Claude Delmas

Claude Delmas 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).

  • Publication number: 20220298024
    Abstract: A composition of general formula (1): Nax[MnaNibCrc]O2+y (1), wherein: 0.6?x?0.8; ?0.1?y?0.1; 0.55?a?0.7; 0.25?b?0.3; c?0.05; and a+b+c?1.0, an intermediate product for preparing a composition of general formula (1) and a process of synthesis, wherein the mixed sodium-transition metal oxide of general formula (1) may generally show an essentially or solely P2 structure, and may be used as a positive electrode material for a sodium ion secondary battery.
    Type: Application
    Filed: August 27, 2019
    Publication date: September 22, 2022
    Applicants: TOYOTA MOTOR EUROPE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Laurent CASTRO, Jun YOSHIDA, Claude DELMAS, Marie GUIGNARD, Elodie GUERIN
  • Patent number: 10601039
    Abstract: A mixed oxide of sodium and transition metals having the formula (1): Nax[MnaNibCoc]O2+y??(1) wherein: 0.5?x?0.9, ?0.1?y?0.1, a+b+c=1, 4a+2b+3c=4?x+2y, and 0<c?0.5. Further a process for producing such a mixed oxide, a positive electrode including such a mixed oxide and a sodium ion secondary battery including such a positive electrode.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: March 24, 2020
    Assignees: TOYOTA MOTOR EUROPE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Jun Yoshida, Claude Delmas, Marie Guignard, Dany Carlier-Larregaray
  • Publication number: 20180205081
    Abstract: A mixed oxide of sodium and transition metals having the formula (1): Nax[MnaNibCoc]O2+y ??(1) wherein: 0.5?x?0.9, ?0.1?y?0.1, a+b+c=1, 4a+2b+3c=4?x+2y, and 0<c?0.5. Further a process for producing such a mixed oxide, a positive electrode including such a mixed oxide and a sodium ion secondary battery including such a positive electrode.
    Type: Application
    Filed: July 15, 2015
    Publication date: July 19, 2018
    Applicants: TOYOTA MOTOR EUROPE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Jun YOSHIDA, Claude DELMAS, Marie GUIGNARD, Dany CARLIER-LARREGARAY
  • Patent number: 8080184
    Abstract: A compound of formula Li1+x(NiaMnbCocAly)1?xO2 wherein: a, b and c are non-zero; a+b+c+y=1; 1.05?(1+x)/(1?x)?1.25; 0.015?y(1?x); and the atomic amount of manganese representing from 95% to 100% of the atomic amount of nickel.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: December 20, 2011
    Assignees: Saft, Centre National de la Recherche Scientifique, Umicore
    Inventors: Julien Breger, Frederic Castaing, Philippe Biensan, Jessica Bains, Laurence Croguennec, Claude Delmas, Stephane Levasseur
  • Publication number: 20100108939
    Abstract: A compound of formula Li1+x(NiaMnbCocAly)1?xO2 wherein: a, b and c are non-zero; a+b+c+y=1; 1.05?(1+x)/(1?x)?1.25; 0.015?y(1?x); the atomic amount of manganese representing from 95% to 100% of the atomic amount of nickel.
    Type: Application
    Filed: October 1, 2009
    Publication date: May 6, 2010
    Applicants: SAFT GROUPE S.A., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UMICORE
    Inventors: Julien BREGER, Frederic CASTAING, Philippe BIENSAN, Jessica BAINS, Laurence CROGUENNEC, Claude DELMAS, Stephane LEVASSEUR
  • Patent number: 5522976
    Abstract: The target element (2) is formed from an inorganic compound layer (16) with a melting point above 300.degree. C. deposited on a foam or metallic felt support layer such that the layer of inorganic compound sinks to part of its depth into the support layer to define a composite layer (17). In order to form the target element, a precursor system of the inorganic compound is applied to the support layer, the assembly so formed is subjected to a pressure of between 0.1 MPa and 15 MPa, the resulting assembly is maintained at between 300.degree. C. and 1600.degree. C. and below the melting temperature of the support in order to obtain a sintered assembly. Said assembly is than cooled to an ambient temperature avoiding any sudden cooling. In order to produce the target, the element (2) is glued to a metallic substrate (4) using a conductive adhesive.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: June 4, 1996
    Assignee: Societe Nationale Elf Aquitaine
    Inventors: Guy Campet, Jean-Michel Chabagno, Claude Delmas, Joseph Portier, Jean Salardenne
  • Patent number: 5507897
    Abstract: A target element is formed by creating a precursor system which may yield an inorganic material at a temperature of 300-1600 C. which is lower than the melting point of said material. The precursor system contains an inorganic additive having a melting point no higher than. The precursor system is applied to a support other than a foam or metal felt, the resulting assembly is heated to said temperature and this temperature is maintained for a sufficient time to produce said inorganic material, whereafter the assembly formed by the inorganic material and the support is gradually cooled to room temperature. To produce the target, the target element (2) is bonded to a metal substrate (4) by means of a layer (3) of conductive adhesive.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: April 16, 1996
    Assignee: Societe Nationale Elf Aquitaine
    Inventors: Guy Campet, Maurice Bourrel, Claude Delmas, Joesph Portier, Jean Salardenne
  • Patent number: 5276547
    Abstract: An electrochromic element useful in an electrochromic glass or mirror device and a process for making such element. The element is a five-layered structure including an electrolyte ion conducting layer interposed between first and second inorganic electrochromic layers which are interposed between a pair of conductive electrodes. The first and second inorganic electrochromic layers are different and are capable of exhibiting color-forming properties complementary to one another upon the incorporation of an alkali metal or Ag ion, a mixture of alkali metal or Ag ions or a mixture of alkali metal or Ag and hydrogen ions. The electrolyte ion conducting layer may be a copolymer of ethylene oxide, butylene oxide or methyl glycidyl ether, and optionally a small amount of allyl glycidyl ether, along with an ionizable salt, or may be a polyurethane gel formed by reacting the copolymer with triisocyanate, along with an ionizable salt.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: January 4, 1994
    Assignees: Elf Atochem North America, Inc., Societe Nationale Elf Aquitaine
    Inventors: Jean P. Couput, Guy Campet, Jean M. Chabagno, Daniel Muller, Maurice Bourrel, Ryan Dirkx, Didier Ferry, Regine Garie, Claude Delmas
  • Patent number: 5274493
    Abstract: An electrochromic element useful in an electrochromic glass or mirror device and a process for making such element. The element is a five-layered structure including an electrolyte ion conducting layer interposed between first and second inorganic electrochromic layers which are interposed between a pair of conductive electrodes. The second inorganic electrochromic layer is amorphous. The first and second inorganic electrochromic layers are different and are capable of exhibiting color-forming properties complementary to one another upon the incorporation of at least one H, Li, Na, K, Ag, Cu or Tl ion. The electrolyte ion conducting layer may be a copolymer of ethylene oxide, butylene oxide or methyl glycidyl ether, and optionally a small amount of allyl glycidyl ether, along with an ionizable salt, or may be a polyurethane gel formed by reacting the copolymer with triisocyanate, along with an ionizable salt.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: December 28, 1993
    Assignees: Elf Atochem North America, Inc., Societe Nationale Elf Aquitaine
    Inventors: Jean-Paul Couput, Guy Campet, Jean M. Chabagno, Daniel Muller, Maurice Bourrel, Ryan R. Dirkx, Didier Ferry, Regine Garie, Claude Delmas, Catherine Geoffroy, Bertrand Morel, Josik Portier, Jean Salardenne
  • Patent number: 5260147
    Abstract: The invention relates to an electrode material for a lithium electrochemical generator in accordance with the formula:Li.sub.x M.sub.z V.sub.2-z O.sub.5-tin which M represents Mo and/or Nb and x, z and t are such that0<x.ltoreq.3.20.ltoreq.z<10.ltoreq.t<0.5The X-ray spectrum of this material is subsequently illustrated.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: November 9, 1993
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Claude Delmas, Alain Levasseur, Michel Menetrier, Sabine Brethes
  • Patent number: 4070529
    Abstract: The invention relates to lamelliform oxides of high ionic conductivity which contain monovalent elements inserted between lamellae of oxides of the type (L.sub.x M.sub.1-x) O.sub.2 wherein L is a trivalent element, M is a tetravalent element and x is a number between 0 and 1. Such oxides are useful as solid electrolytes in electrochemical generators or cells.
    Type: Grant
    Filed: July 7, 1976
    Date of Patent: January 24, 1978
    Assignee: Agence Nationale de Valorisation de la Recherche (Anvar)
    Inventors: Claude Delmas, Claude Fouassier, Paul Hagenmuller