Patents by Inventor Rintaro Horizumi

Rintaro Horizumi 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: 10886807
    Abstract: A brushless motor includes a stator, a control device, and a rotor. The stator includes a stator core and windings. The stator core includes teeth arranged next to one another in a circumferential direction and slots formed between the teeth. The windings are inserted into the slots and wound around the stator core as three-phase windings of a plurality of systems. The control device generates a three-phase driving current. The rotor is rotated and driven when the three-phase windings are supplied with the three-phase driving current. The windings are operable independently in each system. At least two windings of different systems and the same phase are arranged mixed in the same slot. The driving current of the same phase is supplied to the two windings of different systems and the same phase arranged in the same slot.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 5, 2021
    Assignee: DENSO CORPORATION
    Inventor: Rintaro Horizumi
  • Patent number: 10411547
    Abstract: A terminal insertion hole is formed in a rear end frame. A grommet has a main body portion and a flanged portion. A terminal holding hole is formed in the main body portion of the grommet. The grommet is inserted into the terminal insertion hole of the rear end frame and the flanged portion is in contact with a rear-side axial-end surface of the rear end frame, that is, a peripheral portion of a rear-side open end of the terminal insertion hole. The grommet is assembled to the rear end frame by inserting the grommet into the terminal insertion hole from the rear-side open end.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: September 10, 2019
    Assignee: DENSO CORPORATION
    Inventor: Rintaro Horizumi
  • Publication number: 20190165631
    Abstract: A brushless motor includes a stator, a control device, and a rotor. The stator includes a stator core and windings. The stator core includes teeth arranged next to one another in a circumferential direction and slots formed between the teeth. The windings are inserted into the slots and wound around the stator core as three-phase windings of a plurality of systems. The control device generates a three-phase driving current. The rotor is rotated and driven when the three-phase windings are supplied with the three-phase driving current. The windings are operable independently in each system. At least two windings of different systems and the same phase are arranged mixed in the same slot. The driving current of the same phase is supplied to the two windings of different systems and the same phase arranged in the same slot.
    Type: Application
    Filed: October 30, 2018
    Publication date: May 30, 2019
    Applicant: DENSO CORPORATION
    Inventor: Rintaro HORIZUMI
  • Publication number: 20160336831
    Abstract: A terminal insertion hole is formed in a rear end frame. A grommet has a main body portion and a flanged portion. A terminal holding hole is formed in the main body portion of the grommet. The grommet is inserted into the terminal insertion hole of the rear end frame and the flanged portion is in contact with a rear-side axial-end surface of the rear end frame, that is, a peripheral portion of a rear-side open end of the terminal insertion hole. The grommet is assembled to the rear end frame by inserting the grommet into the terminal insertion hole from the rear-side open end.
    Type: Application
    Filed: May 11, 2016
    Publication date: November 17, 2016
    Inventor: Rintaro Horizumi