Patents by Inventor Daijiro Fukuda

Daijiro Fukuda 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 rotating electric machine
    Patent number: 9812834
    Abstract: According to one embodiment, a rotor of a rotating electric machine includes a collector shaft which is fastened to a main shaft of the machine and mounted with paired collector rings on an outer circumferential surface thereof. Longitudinal lead bars extend in electrically insulated state in longitudinal lead grooves provided in an outer circumferential surface of the collector shaft and are connected to ring through studs. Radial lead bars are located at a collector shaft-side end portion of the main shaft and connect at their inner end portions to the bands. And, both ends of conductive longitudinal studs inserted into longitudinal through holes at a main shaft-side end portion of the collector shaft are connected to outer end portions of the radial lead bars and to the longitudinal lead bars.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: November 7, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinya Nakayama, Daijiro Fukuda, Yoshihiro Nomoto, Hideyuki Nakamura
  • ROTOR OF ROTATING ELECTRIC MACHINE
    Publication number: 20160164236
    Abstract: According to one embodiment, a rotor of a rotating electric machine includes a collector shaft which is fastened to a main shaft of the machine and mounted with paired collector rings on an outer circumferential surface thereof. Longitudinal lead bars extend in electrically insulated state in longitudinal lead grooves provided in an outer circumferential surface of the collector shaft and are connected to ring through studs. Radial lead bars are located at a collector shaft-side end portion of the main shaft and connect at their inner end portions to the bands. And, both ends of conductive longitudinal studs inserted into longitudinal through holes at a main shaft-side end portion of the collector shaft are connected to outer end portions of the radial lead bars and to the longitudinal lead bars.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 9, 2016
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinya Nakayama, Daijiro Fukuda, Yoshihiro Nomoto, Hideyuki Nakamura