Patents by Inventor Shizen Tobari

Shizen Tobari 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).

  • Test composition, method and a test stick for detection of chloride ion in cow's milk
    Patent number: 4211532
    Abstract: Test composition and test stick for detection of chloride ion in cow's milk, which composition comprises a protected silver chromate colloidal substance, a surface active agent and a buffer agent having a pH value ranging from 2 to 7, and which test stick comprises a carrier, protected silver chromate colloidal substance, a surface active agent and a buffer agent having a pH value ranging from 2 to 7; and a method for producing the test stick.
    Type: Grant
    Filed: July 13, 1978
    Date of Patent: July 8, 1980
    Assignee: Toyo Roshi Kaisha Ltd.
    Inventors: Shizen Tobari, Mariko Nakano