Patents by Inventor Kenichiro Tsukamoto

Kenichiro Tsukamoto 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).

  • Helical gear device
    Patent number: 10663037
    Abstract: A helical gear device includes: first and second helical gear respectively and rotatably disposed about first and third mutually parallel axes; a second helical gear meshing with the first and third helical gears so that a rotary motion is transmitted from the first to the third helical gear through the second, the second helical gear having a center bore; a support shaft disposed coaxially with a second axis parallel to the first, and extending through the center bore with a predetermined amount of radial play between the support shaft and the second helical gear, rotatably supporting the second helical gear. The second and third helical gears have a predetermined radial clearance in their reference meshing state in which their pitch circles contact. The radial clearance is smaller than a radial gap of a backlash between the second and third helical gears in the reference meshing state.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: May 26, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Yorita, Taketsugu Sasaki, Kenichiro Tsukamoto, Kazuya Arakawa, Manabu Hashimoto
  • HELICAL GEAR DEVICE
    Publication number: 20180347668
    Abstract: A helical gear device includes: first and second helical gear respectively and rotatably disposed about first and third mutually parallel axes; a second helical gear meshing with the first and third helical gears so that a rotary motion is transmitted from the first to the third helical gear through the second, the second helical gear having a center bore; a support shaft disposed coaxially with a second axis parallel to the first, and extending through the center bore with a predetermined amount of radial play between the support shaft and the second helical gear, rotatably supporting the second helical gear. The second and third helical gears have a predetermined radial clearance in their reference meshing state in which their pitch circles contact. The radial clearance is smaller than a radial gap of a backlash between the second and third helical gears in the reference meshing state.
    Type: Application
    Filed: June 4, 2018
    Publication date: December 6, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi YORITA, Taketsugu SASAKI, Kenichiro TSUKAMOTO, Kazuya ARAKAWA, Manabu HASHIMOTO
  • Pickup truck
    Patent number: D796415
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: September 5, 2017
    Inventor: Kenichiro Tsukamoto