US Patent Issued to SEIKO EPSON on Sept. 8 for "Gas separation membrane" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,393, issued on Sept. 8, was assigned to SEIKO EPSON Corp. (Tokyo).

"Gas separation membrane" was invented by Yuta Horiuchi (Suwa, Japan), Hiromu Miyazawa (Azumino, Japan), Yasutaka Matsumoto (Suwa, Japan) and Oshi Iwakami (Chino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas separation membrane that separates, by selective transmission, carbon dioxide from a mixed gas containing the carbon dioxide and nitrogen, the gas separation membrane including: a first layer; and a second layer provided at one surface of the first layer and composed of a compound having carbon dioxide separation ability, wherein an average thickness of the second l...