Patents by Inventor Hiromasa Kouda

Hiromasa Kouda 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 removing sulfur oxide from stack gas
    Patent number: 4046856
    Abstract: In a method for removing sulfur oxides in a stack gas by absorbing the sulfur oxides in an absorbent comprising predominantly calcium compounds, thereby converting the sulfur oxides to sulfites, and then oxidizing the sulfites to gypsum, the improvement where the absorbent further contains a magnesium compound such as Mg(OH).sub.2, MgCO.sub.3 or MgSO.sub.4.
    Type: Grant
    Filed: March 15, 1974
    Date of Patent: September 6, 1977
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Hayami Itoo, Noriaki Takahashi, Hiromasa Kouda