Patents by Inventor Shuntaro Suda

Shuntaro Suda 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).

  • Hot forming method and a hot formed member
    Publication number: 20060185774
    Abstract: A hot press-formed member having stable strength and toughness is manufactured from a high strength steel sheet by hot press forming. In the cooling stage during hot press forming, the cooling rate is at least the critical cooling rate until the Ms point is reached and it is then in the range of 25-150° C./s in the temperature range from the Ms point to 200° C. The Vickers hardness of the hot pressed member is less than the value of (maximum quenching hardness ?10) and at east the value of (maximum quenching hardness ?100).
    Type: Application
    Filed: November 28, 2005
    Publication date: August 24, 2006
    Inventors: Toshinobu Nishibata, Masahiro Nakata, Shuntaro Suda, Akira Obayashi, Masanobu Ichikawa