Patents by Inventor Isao Ishigur

Isao Ishigur 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).

  • Antigen membranes for use in syphilis diagnosis and syphilis diagnosis apparatus using such membranes
    Patent number: 4081334
    Abstract: An antigen membrane for syphilis diagnosis comprises cardiolipin immobilized in a polymer maxtrix. The membranes are used in syphilis diagnosis and in an apparatus for syphilis diagnosis.
    Type: Grant
    Filed: March 18, 1977
    Date of Patent: March 28, 1978
    Assignee: Nippon Chemiphar Co., Ltd.
    Inventors: Shuichi Suzuki, Masuo Aizawa, Isao Ishigur, Rikio Shinohara, Yoichi Nagamura