Patents by Inventor Yousuke Maekawa

Yousuke Maekawa 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).

  • Contamination purification system
    Publication number: 20050109710
    Abstract: A contamination purification system which can be installed in a narrow space to efficiently treat soil contaminated with a volatile organic compound, even when it is at a relatively low concentration, without needing a large-scale purification unit, and can effectively utilize the recovered volatile organic compound by its combustion/electric power generation unit.
    Type: Application
    Filed: November 26, 2003
    Publication date: May 26, 2005
    Inventors: Yukuaki Mitarai, Yousuke Maekawa, Michiharu Tajima
  • Method for discharging high-pressure gas-occluding liquid and device therefor
    Patent number: 4138035
    Abstract: Discharge of a high-pressure gas-occluding liquid from a pressureproof container holding therein said liquid in a compressed state is effected by a method which comprises connecting said pressureproof container through the medium of a valve to a pressureproof receptacle, allowing the liquid to transfer into said pressureproof receptacle, diminishing the pressure within said pressureproof receptacle for thereby separating the occluded high-pressure gas from the liquid and subsequently releasing the liquid alone from the receptacle.
    Type: Grant
    Filed: January 25, 1977
    Date of Patent: February 6, 1979
    Assignee: Agency of Industrial Science & Technology
    Inventors: Shigeru Ueda, Kazuo Makino, Yoshinori Nakata, Yoshihisa Hasegawa, Shinichi Yokoyama, Ryoichi Yoshida, Yousuke Maekawa, Yuji Yoshida
  • Apparatus for transfer of powder into high-pressure vessel and method for transfer
    Patent number: 4127151
    Abstract: An apparatus for the transfer of powder into a high-pressure vessel comprises a cylinder, two pistons disposed one on top of the other inside said cylinder and two openings formed in the circular wall of the cylinder, the one opening serving as an inlet for entry of the powder and the other opening serving as an outlet for exit of the powder into the high-pressure vessel.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: November 28, 1978
    Assignee: Agency of Industrial Science & Technology
    Inventors: Shigeru Ueda, Shinichi Yokoyama, Yoshinori Nakata, Yoshihisa Hasegawa, Ryoichi Yoshida, Yousuke Maekawa, Yuji Yoshida, Kazuo Makino