US Patent Issued to MITSUI MINING & SMELTING on July 8 for "Exhaust gas purification catalyst" (Japanese Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,653, issued on July 8, was assigned to MITSUI MINING & SMELTING Co. LTD. (Tokyo).

"Exhaust gas purification catalyst" was invented by Takashi Baba (Saitama, Japan) and Akihiro Isayama (Saitama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An object of the present invention is to provide an exhaust gas purification catalyst having improved exhaust gas (e.g., NOx) purifying performance at low to medium temperature. In order to achieve the object, the present invention provides an exhaust gas purification catalyst including: a substrate; and a catalyst layer formed on the substrate, wherein the catalyst layer contains rhodium element, phosphorus...