Patents by Inventor Tutomu Sasaki

Tutomu Sasaki 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).

  • Apparatus for removing at least one acidic component from a gas
    Patent number: 4719088
    Abstract: Apparatus for removing an acidic component from a gas comprising two absorption columns for washing a crude gas by using two concentrations of alkali-containing aqueous solutions. The alkali-containing solution used in the first step has a pH of 6-13 and the solution used in the second step has a 0.3-2.5 N concentration. A specific gravity control device is used to control the concentration of the solution circulated for the second step. A pH control device is used to control the pH of the solution circulated for the first step. The pH control device controls a valve which regulates the addition of the second step solution into the tank of the first step solution as needed.
    Type: Grant
    Filed: February 11, 1986
    Date of Patent: January 12, 1988
    Assignees: Mitsubish Denki Kabushiki Kaisha, Taiyo Sanso Kabushiki Kaisha
    Inventors: Fumio Itoh, Tutomu Sasaki, Ikuhisa Kanoh, Takaaki Fukumoto