Patents by Inventor Norio Kita

Norio Kita 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).

  • Method of treating waste water of a nuclear power plant and a system therefor
    Patent number: 4138329
    Abstract: In a steam turbine system of a nuclear power plant which forms a closed loop, the waste water contaminated with radioactive impurities is decontaminated by means of ion exchange and heated to produce steam which is used as steam for providing a seal to the gland seal sections of the steam turbine. The steam is condensed back into water which is recirculated through the heating process.
    Type: Grant
    Filed: August 1, 1975
    Date of Patent: February 6, 1979
    Assignee: Hitachi, Ltd.
    Inventor: Norio Kita