ALEXANDRIA, Va., July 3 -- United States Patent no. 12,343,706, issued on July 1, was assigned to Cataler Corp. (Kakegawa, Japan).
"Exhaust gas purification catalyst" was invented by Ryota Onoe (Kakegawa, Japan), Ryo Tasaki (Kakegawa, Japan), Shunsuke Oishi (Kakegawa, Japan) and Koki Aono (Kakegawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An exhaust gas purifying catalyst includes a base material and a catalyst layer. A first catalyst region including the catalyst layer formed therein is provided on an entry side surface of a partition wall of the base material. A second catalyst region including the catalyst layer formed on a wall surface of a pore is provided in a prescribed region from an exi...