Patents by Inventor Rikio Shinohara

Rikio Shinohara 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).

  • Sealant for separation of serum or plasma, and its use
    Patent number: 4140631
    Abstract: A sealant for separation of a sample of blood into serum or plasma and clot portions, which has a specific gravity of about 1.03 to 1.08 and a viscosity of about 5,000 to 1,000,000 cps at a shearing speed of 1 second.sup.-1 when measured at 25.degree. C. and comprises as the essential component a polymer essentially consisting of the units of at least one of alkyl acrylates and alkyl methacrylates, and which forms a separator between the serum or plasma portion as the upper layer and the clot portion as the lower layer formed as the result of centrifugation of the blood sample so that the serum or plasma portion is readily separated from the clot portion by decantation.
    Type: Grant
    Filed: September 29, 1977
    Date of Patent: February 20, 1979
    Assignees: Nippon Paint Co., Ltd., Nippon Chemiphar Co., Ltd.
    Inventors: Hidefumi Okuda, Toshio Abo, Rikio Shinohara
  • 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