Patents by Inventor Shiro Yamashoji

Shiro Yamashoji 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).

  • Chemiluminescent assay for the determination of density of activity of viable cells
    Patent number: 5093238
    Abstract: A chemiluminescent assay for the determination of density or activity of viable cells which comprises incubating viable cells in the presence of a quinone whose reduced form redcues dissolved oxygen resulting in formation of hydrogen peroxide, reacting the hydrogen peroxide with a chemiluminescence reagent in the presence of a fluorescent substance to cause fluorescence and determining density or activity of the cells on the basis of the intensity of fluorescence.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: March 3, 1992
    Assignee: Kings Brewery Co., Ltd.
    Inventors: Shiro Yamashoji, Kumiko Yamashoji, Tatsuhiko Ikeda