US Patent Issued to SUMITOMO METAL MINING on May 26 for "Production method for cobalt sulfate" (Japanese Inventors)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,361, issued on May 26, was assigned to SUMITOMO METAL MINING Co. LTD. (Tokyo).

"Production method for cobalt sulfate" was invented by Hideki Ohara (Niihama, Japan), Keiji Kudou (Niihama, Japan), Tatsuya Higaki (Niihama, Japan), Hiroto Watanabe (Niihama, Japan), Natsuki Kondou (Niihama, Japan), Takashi Kaneko (Niihama, Japan) and Shin-ichi Heguri (Niihama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for separating impurities and cobalt without using an electrolysis process from a cobalt chloride solution containing impurities and producing a high purity cobalt sulfate. The production method for cobalt sulfate includes: a ...