Patents Assigned to Kohei Deguchi
  • Removal of fluorine from water
    Patent number: 4159246
    Abstract: The invention provides a method for removing fluorine from water by causing aluminium ions ionized in the water to combine with fluorine ions to produce an insoluble aluminium fluorides, which can be readily eliminated from the water.
    Type: Grant
    Filed: December 16, 1977
    Date of Patent: June 26, 1979
    Assignee: Kohei Deguchi
    Inventor: Mitsuo Matsumoto