Patents by Inventor Shinji KAJIYAMA

Shinji KAJIYAMA 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).

  • Inner-rotor motor with upper and lower brackets press-fit with the stator core, and a circuit board
    Patent number: 9876409
    Abstract: An inner-rotor motor includes a shaft, a rotor magnet, a stator arranged radially outside of and opposite to the rotor magnet, and upper and lower brackets arranged to hold upper and lower bearings. The upper bracket includes an upper cylindrical cover press fitted to an outer circumference of a stator core from above, an upper bearing holding portion configured to hold the upper bearing, and a top plate portion arranged to join the upper cylindrical cover to the upper bearing holding portion. The lower bracket includes a lower cylindrical cover press fitted to the outer circumference of the stator core from below, a lower bearing holding portion arranged to hold the lower bearing, and a bottom plate portion arranged to join the lower cylindrical cover to the lower bearing holding portion. Each of the upper and lower brackets is fixed to the stator core through press fitting.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: January 23, 2018
    Assignee: NIDEC CORPORATION
    Inventor: Shinji Kajiyama
  • INNER-ROTOR MOTOR
    Publication number: 20150180301
    Abstract: An inner-rotor motor includes a shaft, a rotor magnet, a stator arranged radially outside of and opposite to the rotor magnet, and upper and lower brackets arranged to hold upper and lower bearings. The upper bracket includes an upper cylindrical cover press fitted to an outer circumference of a stator core from above, an upper bearing holding portion configured to hold the upper bearing, and a top plate portion arranged to join the upper cylindrical cover to the upper bearing holding portion. The lower bracket includes a lower cylindrical cover press fitted to the outer circumference of the stator core from below, a lower bearing holding portion arranged to hold the lower bearing, and a bottom plate portion arranged to join the lower cylindrical cover to the lower bearing holding portion. Each of the upper and lower brackets is fixed to the stator core through press fitting.
    Type: Application
    Filed: November 24, 2014
    Publication date: June 25, 2015
    Inventor: Shinji KAJIYAMA