Patents by Inventor Hiroaki OE

Hiroaki OE 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).

  • Eccentric oscillating reduction gear device
    Patent number: 10495184
    Abstract: A second rotor and a third rotor are accommodated in a first rotor. A fitting portion of the third rotor is located in an engagement hole of the second rotor to engage the third rotor with the second rotor. The third rotor is rotational about an axis, which is eccentric to an axis of the first rotor, to vary a relative rotational phase of the first rotor to the second rotor and to accelerate and decelerate rotation of the second rotor. When friction arises between the second rotor and the fitting portion, a frictional force acts in a direction to reduce a rotational moment acting on the third rotor. A friction coefficient between the second rotor and the fitting portion is greater than a friction coefficient between ferrous objects.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: December 3, 2019
    Assignee: DENSO CORPORATION
    Inventors: Hiroaki Oe, Takashi Furukawa, Yukihiro Jo, Yukihiro Honda
  • ECCENTRIC OSCILLATING REDUCTION GEAR DEVICE
    Publication number: 20180266518
    Abstract: A second rotor and a third rotor are accommodated in a first rotor. A fitting portion of the third rotor is located in an engagement hole of the second rotor to engage the third rotor with the second rotor. The third rotor is rotational about an axis, which is eccentric to an axis of the first rotor, to vary a relative rotational phase of the first rotor to the second rotor and to accelerate and decelerate rotation of the second rotor. When friction arises between the second rotor and the fitting portion, a frictional force acts in a direction to reduce a rotational moment acting on the third rotor. A friction coefficient between the second rotor and the fitting portion is greater than a friction coefficient between ferrous objects.
    Type: Application
    Filed: February 22, 2018
    Publication date: September 20, 2018
    Applicant: DENSO CORPORATION
    Inventors: Hiroaki OE, Takashi FURUKAWA, Yukihiro JO, Yukihiro HONDA