Patents by Inventor Tetsuya Tsugawa

Tetsuya Tsugawa 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).

  • Vertical centrifugal separation apparatus supportable in multiple overturn positions
    Patent number: 9089853
    Abstract: To provide a vertical centrifugal separation apparatus which recovers a centrifuged liquid with a reduced loss and is suitable for when a target is the centrifuged liquid, and a method of recovering the centrifuged liquid. In performing centrifugation, the liquid to be processed is supplied from a lower portion of a cylindrical rotational tube which rotates about a vertical axis, and the centrifuged liquid is discharged and recovered from an upper portion of the cylindrical rotational tube. When the centrifugation is stopped for cleaning the cylindrical rotational tube, for example, the cylindrical rotational tube is set to a first overturn position to recover the remaining centrifuged liquid, and then the cylindrical rotational tube is set to a second overturn position to pull the tube out of the casing. Such a structure allows the recovery of the centrifuged liquid as the target with a reduced loss and without waste.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: July 28, 2015
    Assignee: Tomoe Engineering Co., Ltd.
    Inventors: Tetsuya Tsugawa, Kokichi Dohi, Atsushi Sada
  • VERTICAL CENTRIFUGAL SEPARATION APPARATUS AND METHOD OF RECOVERING CENTRIFUGED LIQUID
    Publication number: 20120165177
    Abstract: To provide a vertical centrifugal separation apparatus which recovers a centrifuged liquid with a reduced loss and is suitable for when a target is the centrifuged liquid, and a method of recovering the centrifuged liquid. In performing centrifugation, the liquid to be processed is supplied from a lower portion of a cylindrical rotational tube which rotates about a vertical axis, and the centrifuged liquid is discharged and recovered from an upper portion of the cylindrical rotational tube. When the centrifugation is stopped for cleaning the cylindrical rotational tube, for example, the cylindrical rotational tube is set to a first overturn position to recover the remaining centrifuged liquid, and then the cylindrical rotational tube is set to a second overturn position to pull the tube out of the casing. Such a structure allows the recovery of the centrifuged liquid as the target with a reduced loss and without waste.
    Type: Application
    Filed: December 25, 2009
    Publication date: June 28, 2012
    Inventors: Tetsuya Tsugawa, Kokichi Dohi, Atsushi Sada