Patents by Inventor Keisei Maekawa

Keisei Maekawa 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).

  • Remedies for joint diseases
    Patent number: 6608043
    Abstract: The present invention provides an agent for treatment of arthritic diseases such as rheumatoid arthritis that has for its active ingredient a complex of hyaluronic acid and zinc. This complex synergistically inhibits proliferation of synovial cells and suppresses matrix metalloproteinase MMP-9, which is produced by synovial cells, as compared with its constituents, hyaluronic acid and zinc, alone.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: August 19, 2003
    Assignees: Takata Seiyaku Co., Ltd., Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Isao Serizawa, Keisei Maekawa, Janos Illes, Erzsebet Neszmeli