Patents by Inventor Katsushi Osumi

Katsushi Osumi 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 strengthening steel plate member
    Patent number: 9951395
    Abstract: Provided is a method for strengthening a steel plate member employing a heating and quenching treatment. The method includes a first heating step, a partial cooling step, a second heating step and an entire cooling step, each step conducted in the written order.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: April 24, 2018
    Assignee: ASTEER CO., LTD.
    Inventors: Koji Shimotsu, Katsushi Osumi, Yukihiro Tsugita
  • METHOD FOR STRENGTHENING STEEL PLATE MEMBER
    Publication number: 20150299817
    Abstract: Provided is a method for strengthening a steel plate member employing a heating and quenching treatment. The method includes a first heating step, a partial cooling step, a second heating step and an entire cooling step, each step conducted in the written order.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 22, 2015
    Applicant: ASTEER CO., LTD.
    Inventors: Koji Shimotsu, Katsushi Osumi, Yukihiro Tsugita