Patents by Inventor Hitoshi Shibagaki

Hitoshi Shibagaki 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: 10110099
    Abstract: In a rotor of the present invention, an interference is set to have a relationship so that an inner diameter of a press-fit projecting portion before press-fitting is smaller than a diameter of a shaft, and in the inner wall surface, a non-projecting portion is formed without projecting portions on a portion in which a weld line is generated by the molding.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: October 23, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshiro Imazawa, Shinichiro Minami, Hitoshi Shibagaki, Kazunori Tanaka
  • Patent number: 9343945
    Abstract: Provided is a slip ring device for a rotating electric machine, which is capable of reliably retaining a long lead while preventing movement and deformation of the long lead during insert molding. The slip ring device for a rotating electric machine includes: a first ring and a second ring; a long lead (12) having one end portion connected to the first ring and another end portion connected to a rotor coil; a short lead having one end portion connected to the second ring and another end portion connected to the rotor coil; and a molded body formed by insert molding, for retaining the first ring, the second ring, the long lead (12), and the short lead in a mutually insulated fashion. The molded body includes a restricting member (15) for restricting the long lead (12) from being moved and deformed during the insert molding.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: May 17, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshihiro Shinosaka, Shinichiro Minami, Hitoshi Shibagaki
  • Publication number: 20140361658
    Abstract: In a rotor of the present invention, an interference is set to have a relationship so that an inner diameter of a press-fit projecting portion before press-fitting is smaller than a diameter of a shaft, and in the inner wall surface, a non-projecting portion is formed without projecting portions on a portion in which a weld line is generated by the molding.
    Type: Application
    Filed: March 8, 2012
    Publication date: December 11, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshiro Imazawa, Shinichiro Minami, Hitoshi Shibagaki, Kazunori Tanaka
  • Publication number: 20140300218
    Abstract: Provided is a slip ring device for a rotating electric machine, which is capable of reliably retaining a long lead while preventing movement and deformation of the long lead during insert molding. The slip ring device for a rotating electric machine includes: a first ring and a second ring; a long lead (12) having one end portion connected to the first ring and another end portion connected to a rotor coil; a short lead having one end portion connected to the second ring and another end portion connected to the rotor coil; and a molded body formed by insert molding, for retaining the first ring, the second ring, the long lead (12), and the short lead in a mutually insulated fashion. The molded body includes a restricting member (15) for restricting the long lead (12) from being moved and deformed during the insert molding.
    Type: Application
    Filed: February 9, 2012
    Publication date: October 9, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshihiro Shinosaka, Shinichiro Minami, Hitoshi Shibagaki