ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,458,949, issued on Nov. 4, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).
"Gas separation method and zeolite membrane" was invented by Katsuya Shimizu (Kasugai, Japan), Makiko Ichikawa (Nagoya, Japan) and Kenji Yajima (Nagoya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gas separation method includes supplying a mixed gas to a zeolite membrane complex and permeating a high permeability gas through the zeolite membrane complex to separate the high permeability gas from other gases. The mixed gas includes a high permeability gas and a trace gas that is lower in concentration than the high permeability gas. The trace gas contains an organic...