Patents by Inventor Richard DOLBEC

Richard DOLBEC 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: 20240097110
    Abstract: There is provided a method of manufacturing nanoparticles comprising the steps of feeding a core precursor into a plasma torch in a plasma reactor, thereby producing a vapor of silicon or alloy thereof; and allowing the vapor to migrate to a quenching zone of the plasma reactor, thereby cooling the vapor and allowing condensation of the vapor into a nanoparticle core made of the silicon or alloy thereof, wherein the quenching gas comprises a passivating gas precursor that reacts with the surface of the core in the quenching zone produce a passivation layer covering the core, thereby producing said nanoparticles. The present invention also relates to nanoparticles comprising a core covered with a passivation layer, the core being made of silicon or an alloy thereof, as well as their use, in particular in the manufacture of anodes.
    Type: Application
    Filed: July 18, 2023
    Publication date: March 21, 2024
    Applicants: HYDRO-QUÉBEC, TEKNA PLASMA SYSTEMS INC.
    Inventors: Jiayin GUO, Richard DOLBEC, Maher BOULOS, Dominic LEBLANC, Abdelbast GUERFI, Karim ZAGHIB
  • Patent number: 11749798
    Abstract: There is provided a method of manufacturing nanoparticles comprising the steps of feeding a core precursor into a plasma torch in a plasma reactor, thereby producing a vapor of silicon or alloy thereof; and allowing the vapor to migrate to a quenching zone of the plasma reactor, thereby cooling the vapor and allowing condensation of the vapor into a nanoparticle core made of the silicon or alloy thereof, wherein the quenching gas comprises a passivating gas precursor that reacts with the surface of the core in the quenching zone produce a passivation layer covering the core, thereby producing said nanoparticles. The present invention also relates to nanoparticles comprising a core covered with a passivation layer, the core being made of silicon or an alloy thereof, as well as their use, in particular in the manufacture of anodes.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: September 5, 2023
    Assignees: HYDRO-QUEBEC, TEKNA PLASMA SYSTEMS INC.
    Inventors: Jiayin Guo, Richard Dolbec, Maher Boulos, Dominic Leblanc, Abdelbast Guerfi, Karim Zaghib
  • Publication number: 20220051849
    Abstract: The present disclosure generally relates to metallic powders for use in multilayer ceramic capacitors, to multilayer ceramic capacitors containing same and to methods of manufacturing such powders and capacitors. The disclosure addresses the problem of having better controlled smaller particle size distribution, with minimal contaminant contents which can be implemented at an industrial scale.
    Type: Application
    Filed: August 30, 2021
    Publication date: February 17, 2022
    Inventors: Guo Jiayin, Eric Bouchard, Richard Dolbec
  • Patent number: 11127530
    Abstract: The present disclosure generally relates to metallic powders for use in multilayer ceramic capacitors, to multilayer ceramic capacitors containing same and to methods of manufacturing such powders and capacitors. The disclosure addresses the problem of having better controlled smaller particle size distribution, with minimal contaminant contents which can be implemented at an industrial scale.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: September 21, 2021
    Assignee: Tekna Plasma Systems Inc.
    Inventors: Guo Jiayin, Eric Bouchard, Richard Dolbec
  • Publication number: 20200335279
    Abstract: The present disclosure generally relates to metallic powders for use in multilayer ceramic capacitors, to multilayer ceramic capacitors containing same and to methods of manufacturing such powders and capacitors. The disclosure addresses the problem of having better controlled smaller particle size distribution, with minimal contaminant contents which can be implemented at an industrial scale.
    Type: Application
    Filed: January 30, 2019
    Publication date: October 22, 2020
    Inventors: Guo Jiayin, Eric Bouchard, Richard Dolbec
  • Publication number: 20190381572
    Abstract: There is provided a method of manufacturing nanoparticles comprising the steps of feeding a core precursor into a plasma torch in a plasma reactor, thereby producing a vapor of silicon or alloy thereof; and allowing the vapor to migrate to a quenching zone of the plasma reactor, thereby cooling the vapor and allowing condensation of the vapor into a nanoparticle core made of the silicon or alloy thereof, wherein the quenching gas comprises a passivating gas precursor that reacts with the surface of the core in the quenching zone produce a passivation layer covering the core, thereby producing said nanoparticles. The present invention also relates to nanoparticles comprising a core covered with a passivation layer, the core being made of silicon or an alloy thereof, as well as their use, in particular in the manufacture of anodes.
    Type: Application
    Filed: March 2, 2018
    Publication date: December 19, 2019
    Applicants: HYDRO-QUÉBEC, TEKNA PLASMA SYSTEMS INC.
    Inventors: Jiayin GUO, Richard DOLBEC, Maher BOULOS, Dominic LEBLANC, Abdelbast GUERFI, Karim ZAGHIB