Patents by Inventor Naohiro Kaji

Naohiro Kaji 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).

  • Patent number: 9039813
    Abstract: The exhaust gas treatment apparatus has a sealed vessel which is vertically partitioned into two spaces by a partition. A portion of the sealed vessel lower than the partition is an absorbing liquid storage portion, and a portion of the sealed vessel upper than the partition is an exhaust gas introducing portion. The partition is provided with a large number of sparger pipes so that the sparger pipes reach inside an absorbing liquid stored in the absorbing liquid storage portion. The partition is provided with a single gas riser in communication with a space upper than the absorbing liquid in the absorbing liquid storage portion. An upper end of the gas riser passes through a top plate portion of the sealed vessel and protrudes upward.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: May 26, 2015
    Assignee: CHIYODA CORPORATION
    Inventors: Noboru Takei, Sohsuke Kido, Naohiro Kaji, Akira Kumagai
  • Patent number: 8961666
    Abstract: The exhaust gas treatment apparatus has a sealed vessel which is vertically partitioned into two spaces by a partition. The partition is provided with a gas riser for deriving treated exhaust gas from an upper space of the absorbing liquid storage portion. A large number of sparger pipes are provided in a effective region, so as to reach inside an absorbing liquid stored in the absorbing liquid storage portion. A non-jet region is provided in the effective region. The froth layer is not formed in the non-jet region, and the absorbing liquid in a foamed state flows down from the froth layer therearound to circulate the absorbing liquid.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: February 24, 2015
    Assignee: Chiyoda Corporation
    Inventors: Noboru Takei, Sohsuke Kido, Naohiro Kaji, Akira Kumagai
  • Publication number: 20120273979
    Abstract: The exhaust gas treatment apparatus has a sealed vessel which is vertically partitioned into two spaces by a partition. The partition is provided with a gas riser for deriving treated exhaust gas from an upper space of the absorbing liquid storage portion. A large number of sparger pipes are provided in a effective region, so as to reach inside an absorbing liquid stored in the absorbing liquid storage portion. A non-jet region is provided in the effective region. The froth layer is not formed in the non-jet region, and the absorbing liquid in a foamed state flows down from the froth layer therearound to circulate the absorbing liquid.
    Type: Application
    Filed: October 21, 2010
    Publication date: November 1, 2012
    Applicant: CHIYODA CORPORATION
    Inventors: Noboru Takei, Sohsuke Kido, Naohiro Kaji, Akira Kumagai
  • Publication number: 20120267806
    Abstract: The exhaust gas treatment apparatus has a sealed vessel which is vertically partitioned into two spaces by a partition. A portion of the sealed vessel lower than the partition is an absorbing liquid storage portion, and a portion of the sealed vessel upper than the partition is an exhaust gas introducing portion. The partition is provided with a large number of sparger pipes so that the sparger pipes reach inside an absorbing liquid stored in the absorbing liquid storage portion. The partition is provided with a single gas riser in communication with a space upper than the absorbing liquid in the absorbing liquid storage portion. An upper end of the gas riser passes through a top plate portion of the sealed vessel and protrudes upward.
    Type: Application
    Filed: October 21, 2010
    Publication date: October 25, 2012
    Applicant: CHIYODA CORPORATION
    Inventors: Noboru Takei, Sohsuke Kido, Naohiro Kaji, Akira Kumagai