Patents by Inventor Souichirou Sumida

Souichirou Sumida 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).

  • Method of manufacturing pulley cover in continuously variable transmission
    Patent number: 9021851
    Abstract: An oil hole penetrating through a partition wall of a pulley cover of a continuously variable transmission is formed in a direction perpendicular to an axis of the pulley cover. The pulley cover, having first and second hydraulic oil chambers through which a movable pulley half of a pulley of the continuously variable transmission is biased toward a fixed pulley half thereof, is manufactured in the step of machining a metal sheet. The manufacturing step includes a first step of press-forming the annular partition wall of the pulley cover, a second step of opening the oil hole in the partition wall, the oil hole allowing communication between the first and second hydraulic oil chambers, and a third step of press-forming the peripheral wall of the second hydraulic oil chamber at an outer side, in a radial direction, of the partition wall.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: May 5, 2015
    Assignees: Honda Motor Co., Ltd., G-Tekt Corporation
    Inventors: Souichirou Sumida, Shuji Ichijo, Toru Yagasaki, Yukio Yuzawa, Kazuhiko Isoe
  • METHOD OF MANUFACTURING PULLEY COVER IN CONTINUOUSLY VARIABLE TRANSMISSION
    Publication number: 20120304726
    Abstract: An oil hole penetrating through a partition wall of a pulley cover of a continuously variable transmission is formed in a direction perpendicular to an axis of the pulley cover. The pulley cover, having first and second hydraulic oil chambers through which a movable pulley half of a pulley of the continuously variable transmission is biased toward a fixed pulley half thereof, is manufactured in the step of machining a metal sheet. The manufacturing step includes a first step of press-forming the annular partition wall of the pulley cover, a second step of opening the oil hole in the partition wall, the oil hole allowing communication between the first and second hydraulic oil chambers, and a third step of press-forming the peripheral wall of the second hydraulic oil chamber at an outer side, in a radial direction, of the partition wall.
    Type: Application
    Filed: May 23, 2012
    Publication date: December 6, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Souichirou Sumida, Shuji Ichijo, Toru Yagasaki, Yukio Yuzawa, Kazuhiko Isoe