Patents by Inventor Nobutaka Yurioka

Nobutaka Yurioka 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 welding very low carbon steel
    Patent number: 4593174
    Abstract: A method for arc welding a very low carbon steel containing 0.005-0.06% C characterized by employing a welding material with nickel together with high carbon so as to form weld metal containing nickel. Solidification cracking on the thus welded metal can be prevented.
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: June 3, 1986
    Assignee: Nippon Steel Corporation
    Inventors: Shoji Saito, Nobutaka Yurioka, Shigeru Oshita