Patents by Inventor Chikako Sakurai

Chikako Sakurai 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).

  • Irrigation system and irrigation method
    Patent number: 5160214
    Abstract: An irrigation system comprises a pump facility 11 for pumping up seawater from the sea, an artificial seawater lake 31 formed in an inland area, a freshwater producing plant 41 for producing freshwater from seawater, an artificial freshwater lake 51, and an irrigation canal 61 for supplying the freshwater to a projected irrigation area. A solar-cell power generation plant 21-25 is constructed for supplying electric power to operate the irrigation system. The irrigation including the artificial seawater lake is formed in an inland area in a comparatively short time, and freshwater is produced from the seawater stored in the artificial seawater lake. Therefore freshwater can be supplied to a projected irrigation area at an early stage of the construction of the irrigation system.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: November 3, 1992
    Inventors: Mikio Sakurai, Chikako Sakurai