Patents by Inventor Akihiro Matumoto

Akihiro Matumoto 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: 5606212
    Abstract: A rotor of a rotary electric-machine according to the present invention includes a rotor core, a distributed winding wound around the rotor core, a ring member arranged at an end of the rotor core in the axial direction and having an outside diameter which is substantially equal to the outside diameter of the rotor core, and a coupling member for coupling an end portion of the distributed winding to the ring member. The ring member has a plurality of rings arranged at both ends of the rotor core in the axial direction. The rings are arranged one above another. The coupling member has a leading member with a curved portion for leading the end portion of the distributed winding toward the center of the rotor core and a fixture for fixing the leading member into an inner peripheral portion of the ring member.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: February 25, 1997
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Chikage Sasa, Michiyuki Abe, Akihiro Matumoto, Shin-ichi Okazaki, Chisato Shibata, Yoshikiyo Nishikawa