Patents by Inventor Noriaki NUKUSHINA

Noriaki NUKUSHINA 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: 9713839
    Abstract: In a continuous casting method for casting aluminum-deoxidized molten stainless steel 1 by using a continuous casting apparatus 100 in which a long nozzle 3 extending into a tundish 101 is provided at a ladle 2, the molten stainless steel 1 is poured into the tundish 101 through the long nozzle 3, while the spout 3a of the long nozzle 3 is being immersed in the molten stainless steel 1 that has been poured, and the molten stainless steel 1 in the tundish 101 is poured into a casting mold 105. A TD powder 5 is sprayed so that the powder covers the surface of the molten stainless steel 1 in the tundish 101, and nitrogen gas is supplied around the molten stainless steel 1. A calcium-containing material is added to the molten stainless steel 1 in a state other than a state of retention in the tundish 101.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: July 25, 2017
    Assignee: Nisshin Steel Co., Ltd.
    Inventors: Yuuki Honda, Hiroshi Morikawa, Hiroaki Cho, Noriaki Nukushina
  • Patent number: 9682422
    Abstract: In a continuous casting method for casting an aluminum-deoxidized molten stainless steel 1 by using a continuous casting apparatus 100 in which a long nozzle 3 extending into a tundish 101 is provided at a ladle 2, the molten stainless steel 1 is poured through the long nozzle 3 into the tundish 101, while immersing a spout 3a into the poured molten stainless steel 1, and the molten stainless steel 1 in the tundish 101 is poured into a casting mold 105. A TD powder 5 is sprayed so that the powder covers the surface of the molten stainless steel 1 in the tundish 101, a nitrogen gas is supplied around the molten stainless steel 1, and a calcium-containing material is added to the molten stainless steel 1 in the tundish 101. The surface of the molten stainless steel 1 after casting is ground.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: June 20, 2017
    Assignee: NISSHIN STEEL CO., LTD.
    Inventors: Yuuki Honda, Hiroshi Morikawa, Hiroaki Cho, Noriaki Nukushina
  • Publication number: 20160228945
    Abstract: In a continuous casting method for casting aluminum-deoxidized molten stainless steel 1 by using a continuous casting apparatus 100 in which a long nozzle 3 extending into a tundish 101 is provided at a ladle 2, the molten stainless steel 1 is poured into the tundish 101 through the long nozzle 3, while the spout 3a of the long nozzle 3 is being immersed in the molten stainless steel 1 that has been poured, and the molten stainless steel 1 in the tundish 101 is poured into a casting mold 105. A TD powder 5 is sprayed so that the powder covers the surface of the molten stainless steel 1 in the tundish 101, and nitrogen gas is supplied around the molten stainless steel 1. A calcium-containing material is added to the molten stainless steel 1 in a state other than a state of retention in the tundish 101.
    Type: Application
    Filed: September 24, 2014
    Publication date: August 11, 2016
    Applicant: NISSHIN STEEL CO., LTD.
    Inventors: Yuuki HONDA, Hiroshi MORIKAWA, Hiroaki CHO, Noriaki NUKUSHINA
  • Publication number: 20160214166
    Abstract: In a continuous casting method for casting an aluminum-deoxidized molten stainless steel 1 by using a continuous casting apparatus 100 in which a long nozzle 3 extending into a tundish 101 is provided at a ladle 2, the molten stainless steel 1 is poured through the long nozzle 3 into the tundish 101, while immersing a spout 3a into the poured molten stainless steel 1, and the molten stainless steel 1 in the tundish 101 is poured into a casting mold 105. A TD powder 5 is sprayed so that the powder covers the surface of the molten stainless steel 1 in the tundish 101, a nitrogen gas is supplied around the molten stainless steel 1, and a calcium-containing material is added to the molten stainless steel 1 in the tundish 101. The surface of the molten stainless steel 1 after casting is ground.
    Type: Application
    Filed: September 24, 2014
    Publication date: July 28, 2016
    Applicant: NISSHIN STEEL CO., LTD.
    Inventors: Yuuki HONDA, Hiroshi MORIKAWA, Hiroaki CHO, Noriaki NUKUSHINA