Patents by Inventor Shohji Nakayama

Shohji Nakayama 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).

  • Treatment device
    Patent number: 9324494
    Abstract: A processing system according to the present invention includes: a diffusion processing section 10 which heats a sintered R-T-B based magnet body 1 and an RH diffusion source 2 made of either a metal or alloy of a heavy rare-earth element RH (which is at least one of Dy and Tb) while rotating; a sorting section 20 which selectively sorts the RH diffusion source 2 from the sintered R-T-B based magnet body 1 when the diffusion source and the magnet body come from the diffusion processing section 10; and a heat treatment processing section 30 which conducts a heat treatment process on the sintered R-T-B based magnet body 1, in which the heavy rare-earth element RH has been diffused and from which the RH diffusion source 2 has been removed.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: April 26, 2016
    Assignee: HITACHI METALS, LTD.
    Inventors: Futoshi Kuniyoshi, Shohji Nakayama
  • TREATMENT DEVICE
    Publication number: 20130112141
    Abstract: A processing system according to the present invention includes: a diffusion processing section 10 which heats a sintered R-T-B based magnet body 1 and an RH diffusion source 2 made of either a metal or alloy of a heavy rare-earth element RH (which is at least one of Dy and Tb) while rotating; a sorting section 20 which selectively sorts the RH diffusion source 2 from the sintered R-T-B based magnet body 1 when the diffusion source and the magnet body come from the diffusion processing section 10; and a heat treatment processing section 30 which conducts a heat treatment process on the sintered R-T-B based magnet body 1, in which the heavy rare-earth element RH has been diffused and from which the RH diffusion source 2 has been removed.
    Type: Application
    Filed: July 11, 2011
    Publication date: May 9, 2013
    Applicant: HITACHI METALS ,LTD.
    Inventors: Futoshi Kuniyoshi, Shohji Nakayama