Patents by Inventor Fumio Yagi

Fumio Yagi 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: 6987022
    Abstract: An efficient method for therapeutic treatment of a leukemic patient is disclosed in which the patient's body fluid under external circulation is brought into direct contact with an adsorbent material capable of adsorbing the leukemic cells in the body fluid specifically and selectively. The leukemic cell-adsorbent material, which is used by filling a column to form an adsorbent bed, is a conjugate of a lectin protein extracted from, e.g., Dolichos beans or soybeans coupled with a physiologically inert carrier material such as a polysaccharide in the form of beads or a superparamagnetic material in the form of iron oxide-based magnetic beads.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: January 17, 2006
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Osamu Nakamura, Hideki Ohba, Imre Sallay, Fumio Yagi, Sawako Moriwaki, Seiji Yasuda
  • Publication number: 20020182209
    Abstract: An efficient method for therapeutic treatment of a leukemic patient is disclosed in which the patient's body fluid under external circulation is brought into direct contact with an adsorbent material capable of adsorbing the leukemic cells in the body fluid specifically and selectively. The leukemic cell-adsorbent material, which is used by filling a column to form an adsorbent bed, is a conjugate of a lectin protein extracted from, e.g., Dolichos beans or soybeans coupled with a physiologically inert carrier material such as a polysaccharide in the form of beads or a superparamagnetic material in the form of iron oxide-based magnetic beads.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 5, 2002
    Inventors: Osamu Nakamura, Hideki Ohba, Imre Sallay, Fumio Yagi, Sawako Moriwaki, Seiji Yasuda
  • Patent number: 6420171
    Abstract: An efficient method for therapeutic treatment of leukemia is provided in which a patient's body fluid during external circulation is brought into direct contact with an adsorbent material capable of specifically and selectively adsorbing leukemic cells in the body fluid. The leukemic cell-adsorbing material is a composite of a lectin protein coupled with a physiologically inert carrier material such as a galactan polysaccharide in the form of beads. The lectin protein may be obtained from a mushroom fungus such as Agrocybe cylindracea or a leguminous seed such as from the jequirity bean plant. The lectin protein and carrier material can be bound by forming chemical linkages between amino groups in the lectin protein and functional groups in the carrier material, and unreacted functional groups of the carrier material may be blocked with an amino acid. A leukemic cell-adsorbing column may be formed by filling the leukemic cell-adsorbing material into a tubular body to form an adsorbent bed.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: July 16, 2002
    Assignee: Japan as represented by Secretary of Agency of Industrial Science and Technology
    Inventors: Osamu Nakamura, Hideki Ohba, Imre Sallay, Fumio Yagi, Sawako Moriwaki, Seiji Yasuda
  • Patent number: 5072766
    Abstract: In a panel shutter assembly including a plurality of shutter panels which are movable up and down along a pair of transversely spaced upstanding guide rails, a pair of chains to which the panels are fastened one after another, a set of sprockets engaging the chains for moving the chains in either direction to move the panels to open and close a shutter opening, and a pair of panel supporting rails from which the panels are suspended in a panel storage space when the shutter opening is opened, the sprockets consist of a pair of first sprockets for moving the panels up and down and a pair of sound sprockets spaced horizontally apart from the first sprockets and provided between the first sprockets and the panel storage space for moving the panels horizontally, and the panel supporting rails extend horizontally. The horizontal supporting rails enable a reduction in height of a box defining the panel storage space.
    Type: Grant
    Filed: January 3, 1991
    Date of Patent: December 17, 1991
    Assignee: Bunka Shutter Co., Ltd.
    Inventors: Kohichi Kondoh, Fumio Yagi