Patents by Inventor Yasutaka Ta

Yasutaka Ta 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).

  • Top-blowing lance and method for refining molten iron using the same
    Patent number: 9580764
    Abstract: A top-blowing lance includes a refining oxygen gas blowing nozzle having a plurality of ejection openings through which oxygen gas is blown into an iron bath in a reaction vessel, the ejection openings being disposed along a circular orbit at intervals, and a burner nozzle having an axis coaxial with the central axis of the circular orbit, forming a flame inside the refining oxygen gas blowing nozzle, and having ejection openings for blowing a powder heated by the flame into the iron bath, wherein an indicator A that indicates the positional relationship between the ejection openings of the refining oxygen gas blowing nozzle and the ejection openings of the burner nozzle satisfies the specified conditions.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: February 28, 2017
    Assignee: JFE Steel Corporation
    Inventors: Goro Okuyama, Naoki Kikuchi, Yuichi Uchida, Yukio Takahashi, Shingo Sato, Kenji Nakase, Yasutaka Ta, Yuji Miki
  • TOP-BLOWING LANCE AND METHOD FOR REFINING MOLTEN IRON USING THE SAME
    Publication number: 20140298955
    Abstract: A top-blowing lance includes a refining oxygen gas blowing nozzle having a plurality of ejection openings through which oxygen gas is blown into an iron bath in a reaction vessel, the ejection openings being disposed along a circular orbit at intervals, and a burner nozzle having an axis coaxial with the central axis of the circular orbit, forming a flame inside the refining oxygen gas blowing nozzle, and having ejection openings for blowing a powder heated by the flame into the iron bath, wherein an indicator A that indicates the positional relationship between the ejection openings of the refining oxygen gas blowing nozzle and the ejection openings of the burner nozzle satisfies the specified conditions.
    Type: Application
    Filed: October 16, 2012
    Publication date: October 9, 2014
    Inventors: Goro Okuyama, Naoki Kikuchi, Yuichi Uchida, Yukio Takahashi, Shingo Sato, Kenji Nakase, Yasutaka Ta, Yuji Miki