Patents by Inventor Fumihiro Yamamoto

Fumihiro Yamamoto 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).

  • Stave cooler
    Patent number: 4620507
    Abstract: A cast steel stave cooler comprising a carbon steel cooling pipe having a roughened surface and having a coating thereon, and a cast steel embedding the cooling pipe therein. The cast steel contains 10 to 25% Cr and has a very reduced liquid-solid zone so as to prevent fusion of the cooling pipe during the casting. The cooling pipe is provided with fins which are integratedly welded to the cast steel.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: November 4, 1986
    Inventors: Hiromichi Saito, Hiroto Arata, Kazuo Kimura, Kazuo Fujisawa, Fumihiro Yamamoto