Patents by Inventor Shigetado Motoba

Shigetado Motoba 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).

  • Process for removing oxides of sulfur, dust and mist from combustion waste gas
    Patent number: 3944650
    Abstract: A process is described for the removal of oxides of sulfur, dust and mist from a combustion waste gas such as the waste gas evolved from a glass melting furnace in which the waste gas is contacted with an absorbing solution containing an alkaline absorbent such as NaOH, Na.sub.2 CO.sub.3 or Na.sub.2 SO.sub.3, whereby the oxides of sulfur are absorbed and the temperature of the waste gas is decreased and the humidity of the waste gas in increased. The treated waste gas is then passed through a glass fiber filter which is maintained under moist conditions in order to efficiently remove dust and mist particles from the waste gas. Crystalline sodium sulfate hydrate is recovered from the absorbing solution contacted with the waste gas.
    Type: Grant
    Filed: March 27, 1973
    Date of Patent: March 16, 1976
    Assignees: Asahi Glass Company Ltd., Mitsubishi Kakoki Kaisha Ltd.
    Inventors: Ryuichi Hirota, Hisashi Kakuta, Shigetado Motoba, Kenichi Shimizu, Ryoichi Kanno, Mitsuaki Narita