Patents by Inventor Kunitake Chino

Kunitake Chino 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).

  • Process for eluting indium from a chelate resin containing adsorbed indium
    Patent number: 4565673
    Abstract: A process for eluting indium from a chelate resin having a phosphorus atom-containing, chelate-forming group which contains adsorbed indium, which comprises contacting said resin firstly with a primary eluent containing an acid containing no halogen atom in the molecule at a concentration of 0.1N or higher and then with an eluent for indium which is selected from the group consisting of (1) a solution of an acid containing a halogen atom in the molecule, (2) a mixed solution of (a) a metal halide, an ammonium halide or a mixture thereof and (b) an acid and (3) a mixed solution of a sulfide and a base compound.
    Type: Grant
    Filed: December 27, 1984
    Date of Patent: January 21, 1986
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yushin Kataoka, Masaaki Matsuda, Masahiro Aoi, Kunitake Chino