Patents by Inventor Moritaka Ishimaru

Moritaka Ishimaru 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).

  • Patent number: 5223208
    Abstract: Groundwater running below the surface is intercepted with a cutoff wall of a predetermined height and length to form an underground dam, and a nuclear power generation system is built below said underground dam. The water pooled in the underground dam is utilized as the secondary cooling water for the reactor of the power system.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: June 29, 1993
    Inventor: Moritaka Ishimaru