Patents by Inventor Numa Masayuki

Numa Masayuki 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: 5451664
    Abstract: An isolated and purified substance called Acta having the following features: (a) a molecular weight of 60 kd to 70 kd in SDS-PAGE using 12.5% gel, (b) reacts with a monoclonal antibody which is secreted by hybridoma FERM BP-3482, (c) binds to chymotrypsin and (d) binds to DNA. Acta is used to diagnose cancer and Alzheimer's disease.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: September 19, 1995
    Assignee: Konica Corporation
    Inventors: Masahiko Yamasaki, Numa Masayuki