Patents by Inventor Kenichiro Kawamichi

Kenichiro Kawamichi 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).

  • Flue gas treating process and system
    Patent number: 5840263
    Abstract: A flue gas treating system for removing sulfur dioxide and dust present in flue gas by gas-liquid contact with an absorbing fluid and has an inlet side absorption tower of the liquid column type and an outlet side absorption tower of the liquid column type, each of which has a uniform cross-section over the area of gas-liquid contact, and the cross-section of flue gas in the inlet side absorption tower is smaller than the cross section of flue gas in the outlet side absorption tower. The inlet side absorption tower is constructed in the form of a parallel-flow absorption tower wherein the flue gas flows downward for favorable collection of dust and absorption of sulfur dioxide. The outlet side absorption tower is constructed in the form of a counter-flow adsorption tower wherein the flue gas flows upward for favorable absorption of sulfur dioxide. The absorbing fluid within a tank is injected upward from a plurality of spray pipes.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: November 24, 1998
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Takeo Shinoda, Tamotsu Higuchi, Shinichiro Kotake, Kiyoshi Okazoe, Tatsuto Nagayasu, Koichiro Iwashita, Kenichiro Kawamichi, Susumu Okino, Toru Takashina