US Patent Issued to SUMITOMO SEIKA CHEMICALS on Jan. 27 for "Corrosive-gas-mixture-filled container and corrosive gas composition" (Japanese Inventors)

ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,185, issued on Jan. 27, was assigned to SUMITOMO SEIKA CHEMICALS Co. LTD. (Hyogo, Japan).

"Corrosive-gas-mixture-filled container and corrosive gas composition" was invented by Ryoichiro Sakai (Hyogo, Japan) and Hiroki Yamauchi (Hyogo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A corrosive-gas-mixture-filled container includes a sealed container, and a gas filled in the sealed container and containing a corrosive gas. In the corrosive-gas-mixture-filled container, a concentration of water in a vapor phase in the gas is 400 mol ppm or less, the sealed container includes a cylindrical body portion including a metal layer having an inner surf...