Patents by Inventor Katsuhiro Saigusa

Katsuhiro Saigusa 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).

  • Rotor of synchronous motor with reinforcement member for pressing magnet
    Patent number: 11233430
    Abstract: A rotor of a synchronous motor is provided with a plurality of magnets fixed to an outer circumferential surface of a rotor core, and a reinforcement member having a cylindrical shape. An interposition member is disposed between the magnet and the reinforcement member. The magnet includes an outer circumferential surface whose center portion in the circumferential direction bulges outward. The interposition member is formed so as to cover the entire outer circumferential surface of the magnet. An outer circumferential surface of the interposition member has a circular shape when cutting along a plane perpendicular to a rotation axis, and is in close contact with an inner circumferential surface of the reinforcement member.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: January 25, 2022
    Assignee: Fanuc Corporation
    Inventors: Katsuhiro Saigusa, Takafumi Kajiya, Kenji Kawai
  • ROTOR OF SYNCHRONOUS MOTOR WITH REINFORCEMENT MEMBER FOR PRESSING MAGNET
    Publication number: 20200185989
    Abstract: A rotor of a synchronous motor is provided with a plurality of magnets fixed to an outer circumferential surface of a rotor core, and a reinforcement member having a cylindrical shape. An interposition member is disposed between the magnet and the reinforcement member. The magnet includes an outer circumferential surface whose center portion in the circumferential direction bulges outward. The interposition member is formed so as to cover the entire outer circumferential surface of the magnet. An outer circumferential surface of the interposition member has a circular shape when cutting along a plane perpendicular to a rotation axis, and is in close contact with an inner circumferential surface of the reinforcement member.
    Type: Application
    Filed: December 4, 2019
    Publication date: June 11, 2020
    Applicant: Fanuc Corporation
    Inventors: Katsuhiro Saigusa, Takafumi Kajiya, Kenji Kawai