ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,781, issued on June 24, was assigned to FUTABA INDUSTRIAL Co. LTD. (Okazaki, Japan).

"Canister" was invented by Akira Asano (Okazaki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A canister includes two or more chambers in which an adsorbent configured to adsorb an evaporated fuel is placed, a case, an inflow port, an atmosphere port, and outflow port. The case forms a main chamber that is one of the two or more chambers. The inflow port and the outflow port are provided to a first end of the main chamber. The case includes at least one reduced part that is a wall-like part forming an area in the main chamber in the vicinity of the first end...