Patents by Inventor Naohiro Tuboi

Naohiro Tuboi 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).

  • Apparatus for permeability analysis
    Patent number: 7401499
    Abstract: An apparatus for permeability analysis which transmits a testing fluid to the tubular specimen and measures the volume of the testing fluid permeating through the tubular specimen. The apparatus for permeability analysis has a tubular specimen, a cylindrical frame, a carrier gas flow inlet leading from the outside of the cylindrical frame to the inside of the cylindrical frame, a carrier gas flow outlet leading from the inside of the cylindrical frame to the outside of the cylindrical frame, a detection device, and a pump. One end of the tubular specimen and the other end of the tubular specimen are connected to each other via the pump. The apparatus for permeability analysis circulates a testing fluid through the tubular specimen continuously or intermittently by means of a pump, conveys the permeate to the detection device by means of the flow of the carrier gas, and then measures the permeate.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: July 22, 2008
    Assignee: GTR Tec Corporation
    Inventors: Hirotsugu Tujii, Naohiro Tuboi
  • Apparatus for permeability analysis
    Publication number: 20070101803
    Abstract: An apparatus for permeability analysis which transmits a testing fluid to the tubular specimen and measures the volume of the testing fluid permeating through the tubular specimen. The apparatus for permeability analysis has a tubular specimen, a cylindrical frame, a carrier gas flow inlet leading from the outside of the cylindrical frame to the inside of the cylindrical frame, a carrier gas flow outlet leading from the inside of the cylindrical frame to the outside of the cylindrical frame, a detection device, and a pump. One end of the tubular specimen and the other end of the tubular specimen are connected to each other via the pump. The apparatus for permeability analysis circulates a testing fluid through the tubular specimen continuously or intermittently by means of a pump, conveys the permeate to the detection device by means of the flow of the carrier gas, and then measures the permeate.
    Type: Application
    Filed: August 9, 2006
    Publication date: May 10, 2007
    Applicant: GTR TEC CORPORATION
    Inventors: Hirotsugu Tujii, Naohiro Tuboi