Patents by Inventor Ramon Naiff Da Fonseca

Ramon Naiff Da Fonseca 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 for determining the dimensions of an electrochemical cell comprising PCB holding plates
    Patent number: 11106844
    Abstract: The invention relates to a method for determining the dimensions of an electrochemical cell allowing a total area of the electrochemical cell to be minimized while maximizing an electrical signal generated by the electrochemical cell in operation, including: a/ determining a first cost function expressing the variation in a first parameter representative of the total area as a function of an adjustment variable representative of an aspect ratio of the active zone; b/ determining a second cost function expressing the variation in a second parameter representative of the generated electrical signal as a function of the adjustment variable; c/ determining a compound cost function from the first and second cost functions and identifying a value of the adjustment variable that optimizes the compound cost function and that therefore conjointly optimizes the first and second cost functions.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: August 31, 2021
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Mathias Gerard, Jean-Noel Carminati, Laurent Garnier, Ramon Naiff Da Fonseca, Ludovic Rouillon, Remi Vincent
  • METHOD FOR DETERMINING THE DIMENSIONS OF AN ELECTROCHEMICAL CELL COMPRISING PCB HOLDING PLATES
    Publication number: 20190318055
    Abstract: The invention relates to a method for determining the dimensions of an electrochemical cell allowing a total area of the electrochemical cell to be minimized while maximizing an electrical signal generated by the electrochemical cell in operation, including: a/ determining a first cost function expressing the variation in a first parameter representative of the total area as a function of an adjustment variable representative of an aspect ratio of the active zone; b/ determining a second cost function expressing the variation in a second parameter representative of the generated electrical signal as a function of the adjustment variable; c/ determining a compound cost function from the first and second cost functions and identifying a value of the adjustment variable that optimizes the compound cost function and that therefore conjointly optimizes the first and second cost functions.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 17, 2019
    Applicant: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Mathias Gerard, Jean-Noel Carminati, Laurent Garnier, Ramon Naiff da Fonseca, Ludovic Rouillon, Remi Vincent
  • Method and device for observing a state of a fuel-cell electrochemical system
    Patent number: 10359477
    Abstract: A method for observing a state of an electrochemical system including a fuel cell including the following steps: measuring parameters that are representative of the fuel cell in operation; forming a control vector; forming a measurement vector; calculating a temporal variation, referred to as a non-corrected temporal variation; calculating a corrective term in sliding mode; calculating an estimate of the state of the electrochemical system; reiterating above steps while incrementing the measurement time.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: July 23, 2019
    Assignee: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Maxime Piffard, Eric Bideaux, Mathias Gerard, Paolo Massioni, Ramon Naiff Da Fonseca
  • METHOD AND DEVICE FOR OBSERVING A STATE OF A FUEL-CELL ELECTROCHEMICAL SYSTEM
    Publication number: 20180196108
    Abstract: A method for observing a state of an electrochemical system including a fuel cell including the following steps: measuring parameters that are representative of the fuel cell in operation; forming a control vector; forming a measurement vector; calculating a temporal variation, referred to as a non-corrected temporal variation; calculating a corrective term in sliding mode; calculating an estimate of the state of the electrochemical system; reiterating above steps while incrementing the measurement time.
    Type: Application
    Filed: January 5, 2018
    Publication date: July 12, 2018
    Applicant: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Maxime PIFFARD, Eric Bideaux, Mathias Gerard, Paolo Massioni, Ramon Naiff Da Fonseca