Patents by Inventor Yoshinobu Mino

Yoshinobu Mino 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).

  • Stator core of motor, and manufacturing method
    Patent number: 9276441
    Abstract: A stator core comprises a circumferentially deformable part formed on a radially outer peripheral side of a yoke; circumferentially facing divided parts formed on a radially inner peripheral side of the yoke, each having a dividing line that is oriented in a radial direction and reaches a portion between teeth and divided surfaces that face each other without a gap; and radially facing divided parts formed at the center between the radially inner and outer sides of the yoke along the circumferential direction at the predetermined interval, and each having divided surfaces that face each other in the radial direction, and being continuous at one ends with the respective circumferentially facing divided parts. The circumferentially facing divided parts each have a compressive stress being smaller than a compressive stress acting on the circumferentially deformable part or being zero.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: March 1, 2016
    Assignee: NHK Spring Co., Ltd.
    Inventors: Kazuo Iwata, Yoshinobu Mino
  • STATOR CORE OF MOTOR, AND MANUFACTURING METHOD
    Publication number: 20130187514
    Abstract: A stator core comprises a circumferentially deformable part formed on a radially outer peripheral side of a yoke; circumferentially facing divided parts formed on a radially inner peripheral side of the yoke, each having a dividing line that is oriented in a radial direction and reaches a portion between teeth and divided surfaces that face each other without a gap; and radially facing divided parts formed at the center between the radially inner and outer sides of the yoke along the circumferential direction at the predetermined interval, and each having divided surfaces that face each other in the radial direction, and being continuous at one ends with the respective circumferentially facing divided parts. The circumferentially facing divided parts each have a compressive stress being smaller than a compressive stress acting on the circumferentially deformable part or being zero.
    Type: Application
    Filed: September 27, 2011
    Publication date: July 25, 2013
    Applicant: NHK SPRING CO., LTD.
    Inventors: Kazuo Iwata, Yoshinobu Mino