Patents by Inventor Yumi AYUKAWA

Yumi AYUKAWA 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).

  • Steering device
    Patent number: 11104371
    Abstract: A steering device includes: a coupling including a first coupling member, a second coupling member, and an elastic member, the elastic member which is made from a resin, and which includes an elastic member base portion, a first rotation direction elastic portion, a second rotation direction elastic portion, a third rotation direction elastic portion, a fourth rotation elastic portion, and an axial elastic portion, the axial elastic portion which is provided to the elastic member base portion, and which is arranged to be bent in a direction to be inclined with respect to the first axis when a clearance between the first shaft member assembly and the second shaft member assembly in the direction of the first axis is decreased.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: August 31, 2021
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Osamu Yoshida, Kiyotaka Shirakubo, Satoshi Doi, Yumi Ayukawa
  • STEERING DEVICE
    Publication number: 20200047789
    Abstract: A steering device includes: a coupling including a first coupling member, a second coupling member, and an elastic member, the elastic member which is made from a resin, and which includes an elastic member base portion, a first rotation direction elastic portion, a second rotation direction elastic portion, a third rotation direction elastic portion, a fourth rotation elastic portion, and an axial elastic portion, the axial elastic portion which is provided to the elastic member base portion, and which is arranged to be bent in a direction to be inclined with respect to the first axis when a clearance between the first shaft member assembly and the second shaft member assembly in the direction of the first axis is decreased.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 13, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Osamu YOSHIDA, Kiyotaka SHIRAKUBO, Satoshi DOI, Yumi AYUKAWA