Patents by Inventor Tetsuo Kimura

Tetsuo Kimura 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 for eliminating metals from a solution containing a very slight amount of the metals
    Patent number: 3932274
    Abstract: Metal ions are effectively eliminated from aqueous solutions containing the ame by treating the solution with a metal sequestering agent which is a condensation product of a higher alkyl halide with a polyamine.
    Type: Grant
    Filed: June 11, 1974
    Date of Patent: January 13, 1976
    Assignee: Director-General of the Agency of Industrial Science and Technology
    Inventors: Gaku Izumi, Tetsuo Kimura, Katsuyoshi Mori, Michiko Koizumi