Patents by Inventor Noritaka Nishiguchi

Noritaka Nishiguchi 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 for dephosphorization of hot metal, and refining agent
    Patent number: 11542566
    Abstract: When performing dephosphorization treatment of hot metal by adding a refining agent as a lime source and an oxygen source (dephosphorizing agent(s) and a gaseous oxygen source into the hot metal accommodated in a hot metal holding container, the refining agent used is a refining agent having an Ig-loss value of from 4.0% by mass to 35.0% by mass and including 60% by mass or more of quicklime.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: January 3, 2023
    Assignee: JFE Steel Corporation
    Inventors: Yusuke Fujii, Yoshie Nakai, Mikihiro Mori, Takahiko Maeda, Naoki Kikuchi, Noritaka Nishiguchi
  • METHOD FOR DEPHOSPHORIZATION OF MOLTEN IRON, AND REFINING AGENT
    Publication number: 20200385830
    Abstract: When performing dephosphorization treatment of hot metal by adding a refining agent as a lime source and an oxygen source (dephosphorizing agent(s) and a gaseous oxygen source into the hot metal accommodated in a hot metal holding container, the refining agent used is a refining agent having an Ig-loss value of from 4.0% by mass to 35.0% by mass and including 60% by mass or more of quicklime.
    Type: Application
    Filed: December 15, 2017
    Publication date: December 10, 2020
    Applicant: JFE Steel Corporation
    Inventors: Yusuke Fujii, Yoshie Nakai, Mikihiro Mori, Takahiko Maeda, Naoki Kikuchi, Noritaka Nishiguchi