Patents by Inventor Yugo YAMAJI

Yugo YAMAJI 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).

  • Welding torch with upper and lower shielding gas flow and welding method using welding torch for horizontal welding
    Patent number: 9844829
    Abstract: A welding torch (1) includes a cylindrical nozzle (2) in which shielding gas is flown from an opening (3b), and an electrode (4) that is a bar-shaped body projecting from the opening (3b). The shielding gas includes upper shielding gas flowing in an upper region (3u) on an upper side of a central axis (C2) of the electrode (4), and lower shielding gas flowing in a lower region (3d) on a lower side of the central axis (C2) of the electrode (4). Atmospheric pressure of the lower shielding gas is higher than atmospheric pressure of the upper shielding gas. A method of horizontal welding with this kind of welding torch is also defined.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: December 19, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yugo Yamaji
  • WELDING TORCH WITH UPPER AND LOWER SHIELDING GAS FLOW AND WELDING METHOD USING WELDING TORCH FOR HORIZONTAL WELDING
    Publication number: 20160052078
    Abstract: A welding torch (1) includes a cylindrical nozzle (2) in which shielding gas is flown from an opening (3b), and an electrode (4) that is a bar-shaped body projecting from the opening (3b). The shielding gas includes upper shielding gas flowing in an upper region (3u) on an upper side of a central axis (C2) of the electrode (4), and lower shielding gas flowing in a lower region (3d) on a lower side of the central axis (C2) of the electrode (4). Atmospheric pressure of the lower shielding gas is higher than atmospheric pressure of the upper shielding gas. A method of horizontal welding with this kind of welding torch is also defined.
    Type: Application
    Filed: April 9, 2014
    Publication date: February 25, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yugo YAMAJI