Patents by Inventor Yoshio Tokuta

Yoshio Tokuta 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).

  • Reference electrode for oxygen probe
    Patent number: 4399022
    Abstract: In the reference electrode for the oxygen probe comprising a mixture of Cr powder and Cr.sub.2 O.sub.3 powder, an improved reference electrode characterized in that Cr powder and Cr.sub.2 O.sub.3 powder are mixed in a ratio 97%:3% to 80%:20% and the mixture is sintered beforehand. An oxygen probe using this electrode exhibits improved response, stability and reproducibility in molten steel.
    Type: Grant
    Filed: March 2, 1982
    Date of Patent: August 16, 1983
    Assignee: Nisshin Steel Company, Ltd.
    Inventors: Yoshio Nakajima, Takaharu Moriya, Hajime Nakamura, Koji Omosako, Yoshio Tokuta