Patents by Inventor Kyoichi Kawata

Kyoichi Kawata 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 separating carbon monoxide having substantially constant purity
    Patent number: 4732577
    Abstract: There is provided an improved process for forming high purity carbon monoxide wherein a product of substantially uniform purity is obtained. A waste gas containing at least CO, CO.sub.2 and N.sub.2 is treated by pressure swing adsorption in two stages to remove CO.sub.2 and CO, respectively. The CO content of at least the feed gas and the second stage product gas are monitored and an amount of second stage product gas is recycled to the feed gas and/or the first stage product gas sufficient to assure substantially uniform CO content in the second stage product gas withdrawn from the system.
    Type: Grant
    Filed: April 14, 1987
    Date of Patent: March 22, 1988
    Assignees: Osaka Sanso Kogyo Ltd., Kawasaki Steel Corp.
    Inventors: Susumu Koizumi, Shigeo Matsui, Kyoichi Kawata