Patents by Inventor Ayumu YAGETA

Ayumu YAGETA 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).

  • Rotor and manufacturing method thereof
    Patent number: 11799335
    Abstract: A rotor includes: a rotor core in a shape of a shaft; a permanent magnet; and a connecting member interposed between the rotor core and the permanent magnet and connecting the permanent magnet to the rotor core. The connecting member contains a thermally conductive filler made of a non-magnetic material. Only ends of the filler have magnetism, and the ends are in contact with either or both of the rotor core and the permanent magnet.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: October 24, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ayumu Yageta, Hiroshi Kimpara
  • Method for manufacturing rotor for rotor electric machine
    Patent number: 11716000
    Abstract: A method of manufacturing a rotor for a rotating electric machine. The rotor includes a rotor core and at least one magnet fixed in at least one magnet fixing portion provided in the rotor core. The method includes: (a) placing the at least one magnet and at least one fixing member in the at least one magnet fixing portion such that each of the at least one fixing member is positioned between a corresponding one of the at least one magnet fixing portion and a corresponding one of the at least one magnet; and (b) applying an electric current to the at least one magnet to heat the at least one fixing member by heat generated by an electrical resistance of the at least one magnet, and fixing the at least one magnet to the at least one magnet fixing portion through the heated at least one fixing member.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: August 1, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenta Takeshima, Shintaro Nakano, Ayumu Yageta, Shuzaburo Kita
  • METHOD AND APPARATUS FOR MANUFACTURING ROTOR FOR ROTATING ELECTRIC MACHINE
    Publication number: 20220094247
    Abstract: A method of manufacturing a rotor for a rotating electric machine. The rotor includes a rotor core and at least one magnet fixed in at least one magnet fixing portion provided in the rotor core. The method includes: (a) placing the at least one magnet and at least one fixing member in the at least one magnet fixing portion such that each of the at least one fixing member is positioned between a corresponding one of the at least one magnet fixing portion and a corresponding one of the at least one magnet; and (b) applying an electric current to the at least one magnet to heat the at least one fixing member by heat generated by an electrical resistance of the at least one magnet, and fixing the at least one magnet to the at least one magnet fixing portion through the heated at least one fixing member.
    Type: Application
    Filed: September 21, 2021
    Publication date: March 24, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenta TAKESHIMA, Shintaro NAKANO, Ayumu YAGETA, Shuzaburo KITA
  • ROTOR AND MANUFACTURING METHOD THEREOF
    Publication number: 20220060068
    Abstract: A rotor includes: a rotor core in a shape of a shaft; a permanent magnet; and a connecting member interposed between the rotor core and the permanent magnet and connecting the permanent magnet to the rotor core. The connecting member contains a thermally conductive filler made of a non-magnetic material. Only ends of the filler have magnetism, and the ends are in contact with either or both of the rotor core and the permanent magnet.
    Type: Application
    Filed: August 6, 2021
    Publication date: February 24, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ayumu YAGETA, Hiroshi KIMPARA