Patents by Inventor Naoto TOYOMURA

Naoto TOYOMURA 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).

  • Publication number: 20240356398
    Abstract: Provided is a rotor allowing effectively utilizing magnetic flux generated from a magnet, a motor using the rotor, and an electronic device. Provided are a rotor, a motor using the rotor, and an electronic device, the rotor including a plurality of magnetic bodies stacked in an axial direction and a plurality of magnets. The magnetic body includes: an annular part; a plurality of magnetic pole pieces extending in a radial direction; and a plurality of coupling parts configured to couple each of the plurality of magnetic pole pieces and the annular part. The plurality of magnets are each disposed between two adjacent magnetic pole pieces among the plurality of magnetic pole pieces in a circumferential direction. The coupling part extends with both components including a component in the radial direction and a component in the circumferential direction.
    Type: Application
    Filed: July 8, 2022
    Publication date: October 24, 2024
    Inventors: Takuji YAMADA, Kouji KEBUKAWA, Toru WATANABE, Naoto TOYOMURA
  • Publication number: 20240275225
    Abstract: The present application provides a rotor, a motor using the rotor and an electronic device capable of effectively utilizing magnetic flux generated from a magnet. The rotor includes a rotor core including an annular portion and a plurality of magnetic pole pieces radially extending from the annular portion via a pair of joint portions, a plurality of first magnets disposed between the neighboring magnetic pole pieces in a circumferential direction, and a plurality of second magnets disposed between the pair of joint portions, in which each of the first magnets contacts side surfaces of two neighboring magnetic pole pieces in the circumferential direction and each of the second magnets contacts inner surfaces of the magnetic pole pieces in a radial direction.
    Type: Application
    Filed: April 24, 2024
    Publication date: August 15, 2024
    Inventors: Takuji YAMADA, Naoto TOYOMURA
  • Patent number: 11990796
    Abstract: The present invention provides a rotor, a motor using the rotor and an electronic device capable of effectively utilizing magnetic flux generated from a magnet. The rotor includes a rotor core including an annular portion and a plurality of magnetic pole pieces radially extending from the annular portion via a pair of joint portions, a plurality of first magnets disposed between the neighboring magnetic pole pieces in a circumferential direction, and a plurality of second magnets disposed between the pair of joint portions, in which each of the first magnets contacts side surfaces of two neighboring magnetic pole pieces in the circumferential direction and each of the second magnets contacts inner surfaces of the magnetic pole pieces in a radial direction.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: May 21, 2024
    Assignee: MINEBEA MITSUMI Inc.
    Inventors: Takuji Yamada, Naoto Toyomura
  • Publication number: 20230378831
    Abstract: Provided is a rotor capable of effectively utilizing magnetic flux generated from a magnet, a motor using the rotor, and an electronic device. The rotor, the motor using the rotor, and the electronic device include a rotor core including: an annular part; a plurality of magnetic pole pieces extending in a radial direction; and a plurality of connecting parts configured to connect the annular part and each of the plurality of magnetic pole pieces; a plurality of first magnets disposed between two adjacent magnetic pole pieces of the plurality of magnetic pole pieces in a circumferential direction; and a plurality of second magnets disposed in a space formed between two adjacent connecting parts of the plurality of connecting parts in the circumferential direction, the connecting parts extending in a direction having both of a component of the radial direction and a component of the circumferential direction.
    Type: Application
    Filed: October 15, 2021
    Publication date: November 23, 2023
    Inventors: Naoto TOYOMURA, Takuji YAMADA
  • Publication number: 20220368178
    Abstract: A motor includes a stator and a substrate. The stator includes a plurality of magnetic bodies and a coil wound around each of the magnetic bodies. The substrate opposes the stator in the rotational axis direction. The coil includes a first layer and a second layer stacked on the first layer. 1?D/L holds, where L is a thickness of the magnetic body in the rotational axis direction and D is a width of the magnetic body in a radial direction. In the radial direction, a conducting wire of the first layer and a conducting wire of the second layer making up an inner edge of the coil are in contact with each other, and, in the radial direction, a conducting wire of the first layer and a conducting wire of the second layer making up an outer edge of the coil are in contact with each other.
    Type: Application
    Filed: May 5, 2022
    Publication date: November 17, 2022
    Inventors: Naoto TOYOMURA, Takuji YAMADA
  • Publication number: 20220037943
    Abstract: The present invention provides a rotor, a motor using the rotor and an electronic device capable of effectively utilizing magnetic flux generated from a magnet. The rotor includes a rotor core including an annular portion and a plurality of magnetic pole pieces radially extending from the annular portion via a pair of joint portions, a plurality of first magnets disposed between the neighboring magnetic pole pieces in a circumferential direction, and a plurality of second magnets disposed between the pair of joint portions, in which each of the first magnets contacts side surfaces of two neighboring magnetic pole pieces in the circumferential direction and each of the second magnets contacts inner surfaces of the magnetic pole pieces in a radial direction.
    Type: Application
    Filed: August 19, 2019
    Publication date: February 3, 2022
    Inventors: Takuji YAMADA, Naoto TOYOMURA