Patents by Inventor Fumiaki Kawakami

Fumiaki Kawakami 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 separating and purifying metallic elements by displacement chromatography
    Patent number: 4599175
    Abstract: By the displacement chromatographic process comprising passing a solution containing a plurality of metallic elements to be separated through a column packed with activated chelating resin, passing an eluent through the column and collecting successive portions of the resultant eluate, the metallic elements can be separated into individual metallic elements not only in a high state of purity but also in a high state of concentration, with a greatly improved column efficiency.
    Type: Grant
    Filed: September 18, 1984
    Date of Patent: July 8, 1986
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Takafumi Yamamizu, Fumiaki Kawakami