Patents by Inventor Youhei Souma

Youhei Souma 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).

  • Bent pipe structure
    Patent number: 10400931
    Abstract: A curved portion at an inner circumferential face on a bend direction inside of a bend has a circular arc shape. By configuring the curved portion with a circular arc shape, a recess, serving as an example of a cross-sectional area enlargement portion that enlarges the cross-sectional area of a flow path of a pipe body running along a direction of an axial line 13, is formed in the inner circumferential face on the bend direction inside of the bend.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: September 3, 2019
    Assignee: Nifco Inc.
    Inventors: Youhei Souma, Hiroyuki Nakaya, Yoshio Tomono, Tadahiro Kitamura, Yoshiyuki Goto
  • Curved tube structure and die for forming curved tube
    Patent number: 10253913
    Abstract: A curved tube structure, including: a tube main body including a bent portion at one portion in an axis line direction; and an enlarged cross-section portion formed along the axis line direction of the tube main body in an inner periphery inside a bending direction of the bent portion for enlarging a cross-section area of the tube main body.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: April 9, 2019
    Assignee: NIFCO INC.
    Inventors: Youhei Souma, Hiroyuki Nakaya, Yoshio Tomono, Tadahiro Kitamura, Yoshiyuki Goto
  • BENT PIPE STRUCTURE
    Publication number: 20180128408
    Abstract: A curved portion at an inner circumferential face on a bend direction inside of a bend has a circular arc shape. By configuring the curved portion with a circular arc shape, a recess, serving as an example of a cross-sectional area enlargement portion that enlarges the cross-sectional area of a flow path of a pipe body running along a direction of an axial line 13, is formed in the inner circumferential face on the bend direction inside of the bend.
    Type: Application
    Filed: February 26, 2015
    Publication date: May 10, 2018
    Inventors: Youhei SOUMA, Hiroyuki NAKAYA, Yoshio TOMONO, Tadahiro KITAMURA, Yoshiyuki GOTO
  • CURVED TUBE STRUCTURE AND DIE FOR FORMING CURVED TUBE
    Publication number: 20150226360
    Abstract: A curved tube structure, including: a tube main body including a bent portion at one portion in an axis line direction; and an enlarged cross-section portion formed along the axis line direction of the tube main body in an inner periphery inside a bending direction of the bent portion for enlarging a cross-section area of the tube main body.
    Type: Application
    Filed: September 13, 2013
    Publication date: August 13, 2015
    Inventors: Youhei Souma, Hiroyuki Nakaya, Yoshio Tomono, Tadahiro Kitamura, Yoshiyuki Goto