Patents by Inventor Sahar KESHAVARZ

Sahar KESHAVARZ 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 of tetratenite production and system therefor
    Patent number: 11462358
    Abstract: The invention provides method for making high coercivity magnetic materials based on FeNi alloys having a L10 phase structure, tetratenite, and provides a system for accelerating production of these materials. The FeNi alloy is made by preparing a melt comprising Fe, Ni, and optionally one or more elements selected from the group consisting of Ti, V, Al, B, C, Mo, Ir, and Nb; cooling the melt and applying extensional stress and a magnetic field. This is followed by heating and cooling to form the L10 structure.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: October 4, 2022
    Inventors: Laura H. Lewis, Ian J. McDonald, Sahar Keshavarz, R. William McCallum
  • Method of Tetratenite Production and System Therefor
    Publication number: 20210035733
    Abstract: The invention provides method for making high coercivity magnetic materials based on FeNi alloys having a Llo phase structure, tetratenite, and provides a system for accelerating production of these materials. The FeNi alloy is made by preparing a melt comprising Fe, Ni, and optionally one or more elements selected from the group consisting of Ti, V, Al, B, C, Mo, Ir, and Nb; cooling the melt and applying extensional stress and a magnetic field. This is followed by heating and cooling to form the L10 structure.
    Type: Application
    Filed: August 20, 2018
    Publication date: February 4, 2021
    Inventors: Laura H. LEWIS, Ian J. McDONALD, Sahar KESHAVARZ, R. William McCALLUM