Patents by Inventor Yoshio Seo

Yoshio Seo 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: 4306827
    Abstract: An apparatus for distributing materials into a blast furnace using no bell. The apparatus has a material distributing hopper disposed for a rocking motion around the central axis of said furnace. The rocking motion of the material distributing hopper is caused by an axial movement and rotation of a single drive shaft disposed outside the furnace.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: December 22, 1981
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Teruo Tsutsumi, Kazumi Inoue, Shuji Asami, Masayuki Kohmoto, Toshiyuki Nasu, Yoshio Seo, Toshio Yasusaka