ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,773, issued on Dec. 2, was assigned to HONDA MOTOR Co. LTD (Tokyo).

"Radial turbine impeller" was invented by Takashi Sakakibara (Saitama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A radial turbine impeller includes a hub having a substantially conical shape and multiple turbine blades provided on an outer peripheral surface of the hub at intervals in a rotational direction. In a meridian cross section, a hub line formed by the outer peripheral surface of the hub has a diameter that monotonically decreases from an upstream end on a radially outer side to a downstream end on a radially inner side, and includes a convex part that is convex t...