Patents by Inventor Tetsuya Sanda

Tetsuya Sanda 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).

  • Hollow fiber mass transfer apparatus
    Patent number: 5238561
    Abstract: A hollow fiber mass transfer apparatus has a casing having inlet and outlet ports for dialyzing liquid. A bundle of hollow fibers is housed in the casing. Two partition members hold the bundle without closing the openings of the hollow fibers. Two funnel-like headers surround the openings of the hollow fibers. Blood, for example, passes from the frusto-conical portion of the header through the fibers and out from the inverted frusto-conical portion of the header. In the header 16, the inner diameter D of the fitting portion and the height H between the fitting portion and frusto-conical portion has a relationship: 0.8.ltoreq.H/D.ltoreq.1.2.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: August 24, 1993
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Tetsuya Sanda, Tsuyoshi Watanabe