Patents by Inventor Bertrand BELE

Bertrand BELE 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).

  • High formability steel sheet for the manufacture of lightweight structural parts and manufacturing process
    Patent number: 11725265
    Abstract: A steel sheet has a composition comprising, by weight: 0.010%?C?0.080%, 0.06%?Mn?3%, Si?1.5%, 0.005%?Al?1.5%, S?0.030%, P?0.040%, Ti and B such that: 3.2%?Ti?7.5% and (0.45×Ti)?1.35?B?(0.45×Ti)?0.43, optionally Ni?1%, Mo?1%, Cr?3%, Nb?0.1%, V?0.1%, the remainder being iron and unavoidable impurities resulting from the smelting. The steel sheet has a structure consisting of ferrite, at most 10% of austenite, and precipitates comprising eutectic precipitates of TiB2, the volume fraction of TiB2 precipitates with respect to the whole structure being of at least 9%, the proportion of TiB2 precipitates having a surface area lower than 8 ?m2 being of at least 96%.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: August 15, 2023
    Assignee: ARCELORMITTAL
    Inventors: Frédéric Bonnet, Manuel Bobadilla, Bertrand Bele, Valérie Daeschler
  • HIGH FORMABILITY STEEL SHEET FOR THE MANUFACTURE OF LIGHTWEIGHT STRUCTURAL PARTS AND MANUFACTURING PROCESS
    Publication number: 20220282360
    Abstract: A steel sheet has a composition comprising, by weight: 0.010%?C?0.080%, 0.06%?Mn?3%, Si?1.5%, 0.005%?Al?1.5%, S?0.030%, P?0.040%, Ti and B such that: 3.2%?Ti?7.5% and (0.45×Ti) ?1.35?B?(0.45×Ti) ?0.43, optionally Ni?1%, Mo?1%, Cr?3%, Nb?0.1%, V?0.1%, the remainder being iron and unavoidable impurities resulting from the smelting. The steel sheet has a structure consisting of ferrite, at most 10% of austenite, and precipitates comprising eutectic precipitates of TiB2, the volume fraction of TiB2 precipitates with respect to the whole structure being of at least 9%, the proportion of TiB2 precipitates having a surface area lower than 8 ?m2 being of at least 96%.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 8, 2022
    Inventors: Frédéric BONNET, Manuel BOBADILLA, Bertrand BELE, Valérie DAESCHLER
  • High formability steel sheet for the manufacture of lightweight structural parts and manufacturing process
    Patent number: 11427898
    Abstract: A steel sheet has a composition comprising, by weight: 0.010%?C?0.080%, 0.06%?Mn?3%, Si?1.5%, 0.005%?Al?1.5%, S?0.030%, P?0.040%, Ti and B such that: 3.2%?Ti?7.5% and (0.45×Ti)?1.35?B?(0.45×Ti)?0.43, optionally Ni?1%, Mo?1%, Cr?3%, Nb?0.1%, V?0.1%, the remainder being iron and unavoidable impurities resulting from the smelting. The steel sheet has a structure consisting of ferrite, at most 10% of austenite, and precipitates comprising eutectic precipitates of TiB2, the volume fraction of TiB2 precipitates with respect to the whole structure being of at least 9%, the proportion of TiB2 precipitates having a surface area lower than 8 ?m2 being of at least 96%.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: August 30, 2022
    Assignee: ARCELORMITTAL
    Inventors: Frédéric Bonnet, Manuel Bobadilla, Bertrand Bele, Valérie Daeschler
  • HIGH FORMABILITY STEEL SHEET FOR THE MANUFACTURE OF LIGHTWEIGHT STRUCTURAL PARTS AND MANUFACTURING PROCESS
    Publication number: 20200131607
    Abstract: A steel sheet has a composition comprising, by weight: 0.010%?C?0.080%, 0.06%?Mn?3%, Si?1.5%, 0.005%?Al?1.5%, S?0.030%, P?0.040%, Ti and B such that: 3.2%?Ti?7.5% and (0.45×Ti)?1.35?B?(0.45×Ti)?0.43, optionally Ni?1%, Mo?1%, Cr?3%, Nb?0.1%, V?0.1%, the remainder being iron and unavoidable impurities resulting from the smelting. The steel sheet has a structure consisting of ferrite, at most 10% of austenite, and precipitates comprising eutectic precipitates of TiB2, the volume fraction of TiB2 precipitates with respect to the whole structure being of at least 9%, the proportion of TiB2 precipitates having a surface area lower than 8 ?m2 being of at least 96%.
    Type: Application
    Filed: April 20, 2018
    Publication date: April 30, 2020
    Inventors: Frédéric BONNET, Manuel BOBADILLA, Bertrand BELE, Valérie DAESCHLER