Patents by Inventor Kenji UZAWA

Kenji UZAWA 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).

  • Patent number: 11114916
    Abstract: The present invention makes full use of the advantages of a resin molded stator while pursuing advantages related to performance, reliability, and workability. Provided is an axial gap-type rotary electric machine comprising: a stator in which a plurality of core units having a magnetic flux surface in the rotational axis direction are arranged annularly around the rotational axis; a rotor facing the magnetic flux surfaces of the stator in the axial direction; a housing comprising an inner cylinder space in which the stator is accommodated; and a molded resin that covers part or all of the stator and integrally connects the stator and the inner circumference of the inner cylinder space. The housing comprises an annular thick wall section that has a predetermined thickness toward the axial center side and that follows the inner circumference in part of the inner circumference of the inner cylinder space.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: September 7, 2021
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Katsuyuki Yamazaki, Kenji Uzawa, Shuuichi Takahashi
  • Patent number: 10992203
    Abstract: The purpose of the present invention is to ensure reliability and installation space reduction of crossover wires of an axial gap type rotary electric machine. An axial gap type rotary electric machine having: a stator which is constructed by annularly arranging multiple core units about an axis of rotation, each of the core units having at least a core, windings disposed around the outer periphery of the core, and crossover wires leading out from the windings; at least one rotor which faces an axial end surface of the cores with a gap therebetween; and a rotary shaft which rotates along with the rotor.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: April 27, 2021
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Hirooki Tokoi, Shuuichi Takahashi, Yasuei Yoneoka, Toshifumi Suzuki, Kenji Uzawa, Katsuyuki Yamazaki, Toru Sakai, Ryousou Masaki
  • Publication number: 20200395808
    Abstract: The purpose of the present invention is to ensure reliability and installation space reduction of crossover wires of an axial gap type rotary electric machine. An axial gap type rotary electric machine having: a stator which is constructed by annularly arranging multiple core units about an axis of rotation, each of the core units having at least a core, windings disposed around the outer periphery of the core, and crossover wires leading out from the windings; at least one rotor which faces an axial end surface of the cores with a gap therebetween; and a rotary shaft which rotates along with the rotor.
    Type: Application
    Filed: May 18, 2016
    Publication date: December 17, 2020
    Inventors: Hirooki TOKOI, Shuuichi TAKAHASHI, Yasuei YONEOKA, Toshifumi SUZUKI, Kenji UZAWA, Katsuyuki YAMAZAKI, Toru SAKAI, Ryousou MASAKI
  • Publication number: 20190305628
    Abstract: The present invention makes full use of the advantages of a resin molded stator while pursuing advantages related to performance, reliability, and workability. Provided is an axial gap-type rotary electric machine comprising: a stator in which a plurality of core units having a magnetic flux surface in the rotational axis direction are arranged annularly around the rotational axis; a rotor facing the magnetic flux surfaces of the stator in the axial direction; a housing comprising an inner cylinder space in which the stator is accommodated; and a molded resin that covers part or all of the stator and integrally connects the stator and the inner circumference of the inner cylinder space. The housing comprises an annular thick wall section that has a predetermined thickness toward the axial center side and that follows the inner circumference in part of the inner circumference of the inner cylinder space.
    Type: Application
    Filed: January 27, 2017
    Publication date: October 3, 2019
    Inventors: Katsuyuki YAMAZAKI, Kenji UZAWA, Shuuichi TAKAHASHI