Patents by Inventor Thomas Richardot

Thomas Richardot 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 preparing a sol-gel solution which can be used for preparing a barium titanate ceramic doped with hafnium and/or with at least one lanthanide element
    Patent number: 10833248
    Abstract: The invention relates to a method for preparing a sol-gel solution which can be used to prepare a barium titanate ceramic doped with hafnium and/or with at least one lanthanide element, comprising the following steps: a) a step to place a first mixture comprising a barium carboxylate and a diol solvent in contact with a second mixture comprising a titanium alkoxide and a hafnium alkoxide and/or an alkoxide of a lanthanide element in a monoalcohol solvent; b) a step to distil the mixture resulting from step a) to remove at least part of the monoalcohol solvent; c) a step to add acetic acid, under heat, to the distilled mixture of step b).
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: November 10, 2020
    Assignee: Commissariat a L'Energie Atomique et aux Energies Alternatives
    Inventors: Philippe Boy, Thomas Richardot, Philippe Belleville
  • Method For Preparing A Sol-Gel Solution Which Can Be Used For Preparing A Barium Titanate Ceramic Doped With Hafnium And/or With At Least One Lanthanide Element
    Publication number: 20190006579
    Abstract: The invention relates to a method for preparing a sol-gel solution which can be used to prepare a barium titanate ceramic doped with hafnium and/or with at least one lanthanide element, comprising the following steps: a) a step to place a first mixture comprising a barium carboxylate and a diol solvent in contact with a second mixture comprising a titanium alkoxide and a hafnium alkoxide and/or an alkoxide of a lanthanide element in a monoalcohol solvent; b) a step to distil the mixture resulting from step a) to remove at least part of the monoalcohol solvent; c) a step to add acetic acid, under heat, to the distilled mixture of step b).
    Type: Application
    Filed: December 15, 2016
    Publication date: January 3, 2019
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Philippe Boy, Thomas Richardot, Philippe Belleville