Patents by Inventor Youichi Tsukagoshi

Youichi Tsukagoshi 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).

  • Serum separating device and apparatus for serum separation
    Patent number: 5632895
    Abstract: The present invention provides a serum separating device and an apparatus for use in serum separation which is capable of completely separating serum and clot during the separation of a blood sample into serum and clot by means of a centrifugal separation operation.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: May 27, 1997
    Assignee: Nigata Engineering Co., Ltd.
    Inventors: Youichi Tsukagoshi, Toshimasa Yamamoto
  • Serum separating apparatus
    Patent number: 5266199
    Abstract: This invention relates to an apparatus used in a centrifugal separating step for sample preparation in the field of clinical chemistry. Especially, the invention relates to a separating apparatus used for isolating a serum fraction from a freshly isolated blood sample without contamination with a clot fraction. A serum separating apparatus according to the present invention is characterized by comprising an elastic body in the form of a cylindrical tube and a ball which can fitted to an opening of the elastic body and by positioning at a boundary of said fractions after the centrifugation.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: November 30, 1993
    Assignee: Nigata Chemicals and Plastics Co., Ltd.
    Inventors: Youichi Tsukagoshi, Toshio Inoue, Toshimasa Yamamoto