Patents by Inventor Ryuichi Shirai

Ryuichi Shirai 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).

  • Monoclonal antibody recognizing phosphatidylinositol-3,4,5-triphosphate
    Patent number: 7276375
    Abstract: A novel monoclonal antibody that specifically recognizes phosphatidylinositol-3,4,5-triphosphate (PIP3) but does not cross-react with structurally similar phospholipid antigens is advantageous for PIP3-specific immunoassay. The gene in the variable regions of the monoclonal antibody has been identified, which enables producing recombinant antibodies.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: October 2, 2007
    Assignees: Medical & Biological Laboratories Co., Ltd.
    Inventors: Yasuhisa Fukui, Satoshi Nagata, Ryuichi Shirai
  • Monoclonal antibody recognizing phosphatidylinositol-3,4,5-triphosphate
    Publication number: 20050169911
    Abstract: A novel monoclonal antibody that specifically recognizes phosphatidylinositol-3,4,5-triphosphate (PIP3) but does not cross-react with structurally similar phospholipid antigens is advantageous for PIP3-specific immunoassay. The gene in the variable regions of the monoclonal antibody has been identified, which enables producing recombinant antibodies.
    Type: Application
    Filed: September 30, 2004
    Publication date: August 4, 2005
    Inventors: Yasuhisa Fukui, Satoshi Nagata, Ryuichi Shirai
  • Monoclonal antibody recognizing phosphatidylinositol-3,4-diphosphate
    Publication number: 20050043514
    Abstract: A novel monoclonal antibody that specifically recognizes phosphatidylinositol-3,4-biphosphate (PI-3,4-P2) but does not cross-react with structurally similar phospholipid antigens is advantageous for PI-3,4-P2-specific immunoassay. The gene in the variable regions of the monoclonal antibody has been identified, which enables producing recombinant antibodies.
    Type: Application
    Filed: November 25, 2003
    Publication date: February 24, 2005
    Inventors: Yasuhisa Fukui, Satoshi Nagata, Ryuichi Shirai, Naoaki Saito
  • Monoclonal antibody recognizing phosphatidylinositol-3,4,5-triphosphate
    Patent number: 6818408
    Abstract: A novel monoclonal antibody that specifically recognizes phosphatidylinositol-3,4,5-triphosphate (PIP3) but does not cross-react with structurally similar phospholipid antigens is advantageous for PIP3-specific immunoassay. The gene in the variable regions of the monoclonal antibody has been identified, which enables producing recombinant antibodies.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: November 16, 2004
    Assignees: Medical & Biological Laboratories Co., Ltd.
    Inventors: Yasuhisa Fukui, Satoshi Nagata, Ryuichi Shirai
  • Monoclonal antibody recognizing phosphatidylinositol-3,4-diphosphate
    Patent number: 6709833
    Abstract: A novel monoclonal antibody that specifically recognizes phosphatidylinositol-3,4-biphosphate (PI-3,4-P2) but does not cross-react with structurally similar phospholipid antigens is advantageous for PI-3,4-P2-specific immunoassay. The gene in the variable regions of the monoclonal antibody has been identified, which enables producing recombinant antibodies.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: March 23, 2004
    Assignees: Yasuhisa Fukui, Medical & Biological Laboratories, Co., Ltd.
    Inventors: Yasuhisa Fukui, Satoshi Nagata, Ryuichi Shirai, Naoaki Saito
  • Monoclonal antibody recognizing phosphatidylinositol-3,4-diphosphate
    Publication number: 20030008321
    Abstract: A novel monoclonal antibody that specifically recognizes phosphatidylinositol-3,4-biphosphate (PI-3,4-P2) but does not cross-react with structurally similar phospholipid antigens is advantageous for PI-3,4-P2-specific immunoassay. The gene in the variable regions of the monoclonal antibody has been identified, which enables producing recombinant antibodies.
    Type: Application
    Filed: March 3, 2000
    Publication date: January 9, 2003
    Inventors: Yasuhisa Fukui, Satoshi Nagata, Ryuichi Shirai, Naoaki Saito
  • Monoclonal antibody recognizing phosphatidylinositol-3,4,5-triphosphate
    Publication number: 20020120107
    Abstract: A novel monoclonal antibody that specifically recognizes phosphatidylinositol-3,4,5-triphosphate (PIP3) but does not cross-react with structurally similar phospholipid antigens is advantageous for PIP3-specific immunoassay. The gene in the variable regions of the monoclonal antibody has been identified, which enables producing recombinant antibodies.
    Type: Application
    Filed: November 13, 2001
    Publication date: August 29, 2002
    Applicant: MEDICAL-&-BIOLOGICAL LABORATORIES CO., LTD
    Inventors: Yasuhisa Fukui, Satoshi Nagata, Ryuichi Shirai
  • Monoclonal antibody recognizing phosphatidylinositol-3,4,5-triphosphate
    Patent number: 6348580
    Abstract: A monoclonal antibody that specifically recognizes phosphatidylinositol-3,4,5-triphosphate (PIP3) but does not cross-react with structurally similar phospholipid antigens is advantageous for PIP3-specific immunoassay. The gene in the variable regions of the monoclonal antibody has been identified, which enables producing recombinant antibodies.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: February 19, 2002
    Assignees: Medical & Biological Laboratories Co., Ltd.
    Inventors: Yasuhisa Fukui, Satoshi Nagata, Ryuichi Shirai