Patents by Inventor Sadao Shibuya

Sadao Shibuya 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).

  • Patent number: 9129073
    Abstract: A shape optimization method of a plate-like member which has a concavo-convex shape and includes: identifying a bend stress point where a bend stress is higher in a mode where a specific load is applied to the plate-like member; identifying a bend axis from a distribution of stress vectors around the bend stress point; identifying, in an orthogonal surface to the bend axis, a pair of membrane stress points where a ratio of a membrane stress to a sum of the bend stress and the membrane stress is higher; calculating an offset variable which is a distance between a line segment connecting the pair of the membrane stress points and the bend stress point; and identifying a shape of the plate-like member so as to minimize the offset variable.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: September 8, 2015
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Sadao Shibuya, Ryota Nishioka, Tomohiro Aoyama
  • Publication number: 20120191422
    Abstract: A shape optimization method of a plate-like member which has a concavo-convex shape and includes: identifying a bend stress point where a bend stress is higher in a mode where a specific load is applied to the plate-like member; identifying a bend axis from a distribution of stress vectors around the bend stress point; identifying, in an orthogonal surface to the bend axis, a pair of membrane stress points where a ratio of a membrane stress to a sum of the bend stress and the membrane stress is higher; calculating an offset variable which is a distance between a line segment connecting the pair of the membrane stress points and the bend stress point; and identifying a shape of the plate-like member so as to minimize the offset variable.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 26, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Sadao Shibuya, Ryota Nishioka, Tomohiro Aoyama
  • Patent number: 4507260
    Abstract: A rail apparatus positioned around the surface of a reactor pressure vessel surfaces (1) for carrying equipment such as a flaw detector to permit the equipment to move along the surface of a reactor pressure vessel in the vertical and circumferential directions. The rail apparatus has a plurality of vertical rails (81) and at least one circumferential rail (82) connected to the vertical rails through turn tables (83) at respective points of intersection. Each vertical rail (81) is supported by a supporting member wall fixed at its one end to a gamma-ray shielding wall (2) surrounding the reactor pressure vessel. The vertical and circumferential rails as a unit are retained by the gamma-ray shielding member (84) through oscillation prevention means (86).
    Type: Grant
    Filed: April 7, 1982
    Date of Patent: March 26, 1985
    Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.
    Inventors: Hirotsugu Fujimoto, Tatsukuma Hosono, Hiroshi Kimura, Sadao Shibuya, Akisuke Naruse