Patents by Inventor Tadahiko Kuno

Tadahiko Kuno 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).

  • Polynuclear complex salt waste water clarificants and their preparation
    Patent number: 5346643
    Abstract: A wastewater clarificant very excellent in the powers for removing BOD, COD and SS is provided. The clarificant comprises an aqueous solution containing a polynuclear complex salt that is obtained by subjecting to isochoric heating an aqueous solution containing a mixture of sulfates of a plurality of metals selected from the group consisting of potassium, iron, calcium, sodium, magnesium and aluminum. Preferably, the clarificant comprises an aqueous solution containing a polynuclear complex salt that is obtained by subjecting to isochoric heating an aqueous solution containing a mixture of sulfates of a plurality of metals selected from the group consisting of, in molar concentration, 0.02 to 0.08 of potassium, 0.11 to 1.31 of iron, 0.003 to 0.030 of calcium, 0.004 to 0.040 of sodium, 0.27 to 0.81 of magnesium and 0.370 to 1.300 of aluminum.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: September 13, 1994
    Assignees: Tadahiko Kuno, Jun-ichi Hosokawa, Toko Abasu Co., Ltd.
    Inventor: Tadahiko Kuno