Patents by Inventor Haruo Nisino

Haruo Nisino 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).

  • Gas dispersion pipe for gas-liquid contact, and device for gas-liquid contact making use thereof
    Patent number: 5773621
    Abstract: A gas dispersion pipe into which gas is introduced through its top end portion and blown out from its bottom end portion into liquid for gas-liquid contact, and a method and a device for gas-liquid contact employing the gas dispersion pipe are disclosed. The gas dispersion pipe has its top end portion formed in a contraction pipe with its horizontal cross-sectional area decreasing downward and/or its bottom end portion formed in a nozzle structure with its horizontal cross-sectional area decreasing downward. Instead of making the gas dispersion pipe with its bottom end portion in the nozzle structure, a gas guide member with its horizontal cross-sectional area increasing downward may be disposed within the bottom end portion of the gas dispersion pipe.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: June 30, 1998
    Assignee: Chiyoda Corporation
    Inventors: Haruo Nisino, Akitaka Ide, Toshiaki Urata