ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,375, issued on Jan. 27, was assigned to Tsubame BHB Co. Ltd. (Tokyo).

"Ammonia synthesis system and ammonia production method" was invented by Taichi Yagi (Yokkaichi, Japan) and Katsunobu Yamaguchi (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ammonia synthesis system includes an ammonia synthesis reaction unit that synthesizes ammonia from nitrogen and hydrogen; an ammonia cooler that cools an ammonia-containing gas discharged from the ammonia synthesis reaction unit; a gas-liquid separator that separates ammonia liquefied by the ammonia cooler from a circulated gas; and an ammonia synthesizing gas supplying unit that supplies ...