Patents by Inventor Tadaaki Furuta

Tadaaki Furuta 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).

  • Patent number: 4432871
    Abstract: An adsorbing material for an autoantibody and/or immune complexes is provided. The adsorbing material has an insoluble carrier and an organic low-molecular-weight compound containing a hydrophobic compound, which is fixed to the insoluble carrier. The adsorbing material may be used in an adsorbing device, which has a vessel having fluid inlet and outlet openings with the adsorbing material being contained in the vessel. The adsorbing device may be used in a blood purifying apparatus for absorbing and removing an autoantibody and/or immune complexes from blood plasma, which apparatus has (a) a plasma separating device and (b) a blood-plasma mixing device, which are disposed in series in a blood circulation passage, and (c) a plasma purifying device comprising the adsorbing device disposed in a plasma recycle passage connected to the blood circulation passage to introduce plasma, separated in the plasma separating device, into the mixing device.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: February 21, 1984
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Maokuni Yamawaki, Shozo Suzuki, Tadaaki Furuta
  • Patent number: 4409106
    Abstract: An apparatus and method for effectively and efficiently separating blood components by means of sedimentation action due to gravitational force are disclosed. The blood to be separated is continuously passed through a blood flow channel comprising plural flat empty spaces each having a thickness of, for example, 20 mm or less, or a plurality of tubular empty spaces each having a sectional area of, for example, 3 cm or less. An opening for a feed line is provided in a first empty space of the apparatus and two or more openings for discharge lines of the separated blood components are provided in a second empty space. These empty spaces are connected with the blood flow channel.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: October 11, 1983
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Tadaaki Furuta, Shuusaku Tabata
  • Patent number: 4075100
    Abstract: A dialysis unit and a dialysis apparatus employing the dialysis unit which can perform dialysis at a very high efficiency. The unit comprises a vast plurality of semi-permeable hollow fibers substantially equal in length, which fibers are gathered to form a bundle and bonded in liquid-tight connection at both ends portions thereof. This bundle of hollow fibers is loosely encased in a casing having a plurality of openings substantially uniformly distributed all over the casing. The dialysis unit is put in a dialyzate bath having therein a means for making a forced current of the dialyzate. The dialyzate flows into the casing through the openings and acts upon the bundle of hollow fibers from all directions. Accordingly, the dialyzate can flow freely inside and outside the bundle, while maintaining good contact between the dialyzate and the surfaces of the fibers, even in the inner portion of the bundle.
    Type: Grant
    Filed: December 2, 1975
    Date of Patent: February 21, 1978
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Tadaaki Furuta, Kenji Inagaki, Yoshiyuki Mizoguchi, Noboru Fujikawa, Naoya Kominami