Patents by Inventor Shogo KADOTA

Shogo KADOTA 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).

  • Rare-earth permanent magnet
    Patent number: 10529474
    Abstract: To provide a permanent magnet which uses Ce of an abundant resource and has a great magnetic anisotropy in rare earth permanent magnets. To obtain a permanent magnet having a high magnetic anisotropy due to the trivalent Ce state by setting the abundance ratio C3/(C3+C4) in the main phase grains to be 0.1?C3/(C3+C4)?0.5 where C3 denotes the number of trivalent Ce atoms and C4 denotes the number of tetravalent Ce atoms.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: January 7, 2020
    Assignee: TDK CORPORATION
    Inventors: Shogo Kadota, Kenichi Suzuki, Yuji Umeda, Ryuji Hashimoto, Keiji Takeda
  • Permanent magnet and rotating machine including the same
    Patent number: 10170225
    Abstract: A permanent magnet having a periodic structure with the concentrations of Fe and T (T is one or more transition metal elements with Co or Ni as necessity) changing alternately, wherein, the concentrations change with a period of 3.3 nm or less and the concentration difference of Fe in the concentration change is 5 at % or more. The permanent magnet has a high saturation magnetization Is and coercivity HcJ and can be prepared even without rare earth element(s) R.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: January 1, 2019
    Assignee: TDK CORPORATION
    Inventors: Kenichi Suzuki, Shogo Kadota, Eiichiro Fukuchi
  • RARE-EARTH PERMANENT MAGNET
    Publication number: 20170047151
    Abstract: To provide a permanent magnet which uses Ce of an abundant resource and has a great magnetic anisotropy in rare earth permanent magnets. To obtain a permanent magnet having a high magnetic anisotropy due to the trivalent Ce state by setting the abundance ratio C3/(C3+C4) in the main phase grains to be 0.1?C3/(C3+C4)?0.5 where C3 denotes the number of trivalent Ce atoms and C4 denotes the number of tetravalent Ce atoms.
    Type: Application
    Filed: March 10, 2015
    Publication date: February 16, 2017
    Applicant: TDK CORPORATION
    Inventors: Shogo KADOTA, Kenichi SUZUKI, Yuji UMEDA, Ryuji HASHIMOTO, Keiji TAKEDA
  • PERMANENT MAGNET AND ROTATING MACHINE INCLUDING THE SAME
    Publication number: 20160365181
    Abstract: A permanent magnet having a periodic structure with the concentrations of Fe and T (T is one or more transition metal elements with Co or Ni as necessity) changing alternately, wherein, the concentrations change with a period of 3.3 nm or less and the concentration difference of Fe in the concentration change is 5 at % or more. The permanent magnet has a high saturation magnetization Is and coercivity HcJ and can be prepared even without rare earth element(s) R.
    Type: Application
    Filed: April 21, 2016
    Publication date: December 15, 2016
    Applicant: TDK CORPORATION
    Inventors: Kenichi SUZUKI, Shogo KADOTA, Eiichiro FUKUCHI