Patents by Inventor Ryo KUMAKURA

Ryo KUMAKURA 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).

  • Motor provided with deceleration mechanism
    Patent number: 11245308
    Abstract: On one side of a worm wheel (46) in an axial direction, first thinned portions (46e) recessed toward the other side of the worm wheel (46) in the axial direction are arranged. Further, on the one side of the worm wheel (46) in the axial direction, reinforcing portions (46h) reinforcing areas between the first thinned portions (46e) and tooth portions (45) of the worm wheel (46) are arranged. Therefore, it is possible to reduce a weight of the worm wheel (46) and to suppress occurrence of distortion of the tooth portions (45) by the first thinned portions (46e). In addition, it is possible to sufficiently increase the strength of the worm wheel (46) in the vicinity of the tooth portions (45) by the reinforcing portions (46h).
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: February 8, 2022
    Assignee: MITSUBA Corporation
    Inventors: Hiroyuki Uchimura, Ryo Kumakura, Naruhito Ogino, Takeshi Nishi
  • MOTOR PROVIDED WITH DECELERATION MECHANISM
    Publication number: 20200204037
    Abstract: On one side of a worm wheel (46) in an axial direction, first thinned portions (46e) recessed toward the other side of the worm wheel (46) in the axial direction are arranged. Further, on the one side of the worm wheel (46) in the axial direction, reinforcing portions (46h) reinforcing areas between the first thinned portions (46e) and tooth portions (45) of the worm wheel (46) are arranged. Therefore, it is possible to reduce a weight of the worm wheel (46) and to suppress occurrence of distortion of the tooth portions (45) by the first thinned portions (46e). In addition, it is possible to sufficiently increase the strength of the worm wheel (46) in the vicinity of the tooth portions (45) by the reinforcing portions (46h).
    Type: Application
    Filed: March 15, 2018
    Publication date: June 25, 2020
    Applicant: MITSUBA Corporation
    Inventors: Hiroyuki UCHIMURA, Ryo KUMAKURA, Naruhito OGINO, Takeshi NISHI