Patents by Inventor Saburo Sugihara

Saburo Sugihara 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).

  • Coulometric titration method
    Patent number: 4468289
    Abstract: In a coulometric titration method, during a preparation step before a titration step a composition to be titrated is accumulated in an electrolyte.
    Type: Grant
    Filed: February 3, 1981
    Date of Patent: August 28, 1984
    Assignee: Mitsubishi Kasai Kogyo Kabushiki Kaisha
    Inventors: Kozo Muramatsu, Masanori Hirai, Saburo Sugihara, Hirozumi Nakamura