Patents by Inventor Thomas George Woodcock

Thomas George Woodcock 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).

  • Production method of rare earth magnet
    Patent number: 9520230
    Abstract: A rare earth magnet, which is represented by a neodymium magnet (Nd2Fe14B) and neodymium magnet films with applications in micro-systems. A method for producing a rare earth magnet, comprising: (a) quenching a molten metal having a rare earth magnet composition to form quenched flakes of nanocrystalline structure; sintering the quenched flakes; subjecting the sintered body obtained to an orientation treatment; and applying a heat treatment with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and at the same time, low enough to prevent coarsening of the crystal grains, (b) thick films deposited on a substrate, applying an annealing to crystallize with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and, at the same time, low enough to prevent coarsening of the crystal grains.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: December 13, 2016
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, LEIBNIZ INSTITUTE FOR SOLID STATE AND MATERIALS RESEARCH DRESDEN, UNIVERSITY OF SHEFFIELD
    Inventors: Noritsugu Sakuma, Hidefumi Kishimoto, Akira Kato, Tetsuya Shoji, Dominique Givord, Nora Dempsey, Thomas George Woodcock, Oliver Gutfleisch, Gino Hrkac, Thomas Schrefl
  • PRODUCTION METHOD OF RARE EARTH MAGNET
    Publication number: 20130248754
    Abstract: The method of the present invention produces a rare earth magnet, which is represented by a neodymium magnet (Nd2Fe14B) and neodymium magnet films with applications in micro-systems, by using a heat treatment method capable of enhancing the magnetic characteristics, particularly the magnetic coercive force. A method for producing a rare earth magnet, comprising: (a) quenching a molten metal having a rare earth magnet composition to form quenched flakes of nanocrystalline structure; sintering the quenched flakes; subjecting the sintered body obtained to an orientation treatment; and applying a heat treatment with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and at the same time, low enough to prevent coarsening of the crystal grains.
    Type: Application
    Filed: May 13, 2011
    Publication date: September 26, 2013
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, UNIVERSITY OF SHEFFIELD, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Noritsugu Sakuma, Hidefumi Kishimoto, Akira Kato, Tetsuya Shoji, Dominique Givord, Nora Dempsey, Thomas George Woodcock, Oliver Gutfleisch, Gino Hrkac, Thomas Schrefl