Patents by Inventor Fusanori Hamajima

Fusanori Hamajima 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).

  • Cysteine protease derived from parasitic helminths
    Patent number: 5776758
    Abstract: The immunosuppressive drug of the present invention can suppress both delayed-type hypersensitivity and antibody production against specific antigens and graft tissues and induce immunological tolerance to them by several administrations, instead of long continuous administration.Cysteine protease, a secretory protein accumulated in the tissue of parasitic helminths, is extracted and purified. The cysteine protease is administered to a mammal and then tissue is implanted to the mammal. The immune response of the mammal against the tissue implant is suppressed even one year later.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: July 7, 1998
    Inventors: Fusanori Hamajima, Mikio Yamamoto, Sumiaki Tsuru, Kazuo Yamagami