Patents by Inventor Yukio Niwa

Yukio Niwa 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).

  • Preheating process for steel-making materials
    Patent number: 4395280
    Abstract: A preheating process for steel-making materials, in which the steel-making materials are preheated in a preheating furnace and transferred to a bucket in a clean state for charging them into the steel-making furnace by scattering any dust sticking to the materials by dumping them into the bucket and collecting the scattered dust.
    Type: Grant
    Filed: February 24, 1981
    Date of Patent: July 26, 1983
    Assignee: Daidotokushuko Kabushiki Kaisha
    Inventors: Akira Takenouchi, Yukio Niwa