Patents by Inventor Atsushi NOSAKA

Atsushi NOSAKA 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: 10150147
    Abstract: A piercing plug of the present invention includes: a plug body; a Ni—Cr layer formed on a surface of the plug body; and a sprayed coating formed on a surface of the Ni—Cr layer. The plug body contains, by mass %, 20 to 30% of Cr, 30 to 55% of Ni, 0.005 to 0.5% of C, 0.1 to 1.0% of Si, 0.2 to 1.5% of Mn, and at least one of Mo and W which satisfy a following conditional expression (A), and remainder including Fe and impurities. 1.5%?Mo+0.5W?8.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: December 11, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Atsushi Nosaka, Yasuyoshi Hidaka, Yasuto Higashida, Ryuutarou Ogata
  • Publication number: 20150321233
    Abstract: A piercing plug of the present invention includes: a plug body; a Ni—Cr layer formed on a surface of the plug body; and a sprayed coating formed on a surface of the Ni—Cr layer. The plug body contains, by mass %, 20 to 30% of Cr, 30 to 55% of Ni, 0.005 to 0.5% of C, 0.1 to 1.0% of Si, 0.2 to 1.5% of Mn, and at least one of Mo and W which satisfy a following conditional expression (A), and remainder including Fe and impurities. 1.5%?Mo+0.5 W?8.
    Type: Application
    Filed: July 16, 2013
    Publication date: November 12, 2015
    Inventors: Atsushi NOSAKA, Yasuyoshi HIDAKA, Yasuto HIGASHIDA, Ryuutarou OGATA