Patents by Inventor Jyun Nagakita

Jyun Nagakita 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).

  • Piercing and rolling plug, method of regenerating such piercing and rolling plug, and equipment line for regenerating such piercing and rolling plug
    Patent number: 8082768
    Abstract: A piercing and rolling plug has a film composed of oxides such as Fe3O4 and FeO and Fe (metal) as being formed on the surface of the base metal by electric arc spraying using an iron wire whose main component is Fe and, owing to this film, a plug excellent in heat-shielding and seizure-preventing effects can be realized and the lifetime of the plug can be prolonged. Further, in regenerating this plug, a film can be re-formed via the steps of shot blasting of the as-used plug in piercing and rolling and electric arc spraying in that order; thus, it is possible to regenerate the plug at low cost and in a short period of time.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: December 27, 2011
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Yasuyoshi Hidaka, Kazuhiro Shimoda, Kouji Nakaike, Naoya Hirase, Yasuto Higashida, Takateru Inage, Jyun Nagakita, Masaharu Nakamori, Fumihito Yoshikawa, Yoshihiko Hayashi, Takayuki Aisaka
  • Piercing and Rolling Plug, Method of Regenerating Such Piercing and Rolling Plug, and Equipment Line for Regenerating Such Piercing and Rolling Plug
    Publication number: 20100050723
    Abstract: A piercing and rolling plug has a film composed of oxides such as Fe3O4 and FeO and Fe (metal) as being formed on the surface of the base metal by electric arc spraying using an iron wire whose main component is Fe and, owing to this film, a plug excellent in heat-shielding and seizure-preventing effects can be realized and the lifetime of the plug can be prolonged. Further, in regenerating this plug, a film can be re-formed via the steps of shot blasting of the as-used plug in piercing and rolling and electric arc spraying in that order; thus, it is possible to regenerate the plug at low cost and in a short period of time.
    Type: Application
    Filed: June 24, 2009
    Publication date: March 4, 2010
    Applicant: SUMITOMO METAL INDUSTRIES, LTD.
    Inventors: Yasuyoshi Hidaka, Kazuhiro Shimoda, Kouji Nakaike, Naoya Hirase, Yasuto Higashida, Takateru Inage, Jyun Nagakita, Masaharu Nakamori, Fumihito Yoshikawa, Yoshihiko Hayashi, Takayuki Aisaka