Patents by Inventor Alexandra AMHERD-HIDALGO

Alexandra AMHERD-HIDALGO 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).

  • CORROSION-INHIBITING PROTECTION FOR WATCH MAGNETS, IN PARTICULAR NEODYMIUM-IRON-BORON MAGNETS
    Publication number: 20220154327
    Abstract: A method for protecting a watch magnet against corrosion, wherein a magnet is provided, and that a surface preparation operation is carried out on the magnet, before subjecting it to an ion implantation treatment, in order to create an impervious surface layer acting as a barrier against oxidation with all of the surface bonds saturated by the implanted ions, in order to prevent the corrosion of the magnet in a humid environment, under the usual conditions for wearing watches.
    Type: Application
    Filed: October 1, 2021
    Publication date: May 19, 2022
    Applicant: Comadur SA
    Inventors: Alexandra AMHERD-HIDALGO, Alexis BOULMAY, Pierry VUILLE