ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,534, issued on July 14, was assigned to teTra aviation corp. (Minamisoma, Japan).

"Aircraft and rotor blade module" was invented by Tasuku Nakai (Minamisoma, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aircraft that performs vertical take-off and landing includes: a fuselage; at least one pair of fixed wings; a rotor blade; a rotational drive unit that rotationally drives the rotor blade by electric power; and a support that has an inner space that accommodates at least a part of the rotational drive unit, and supports the rotor blade, wherein the support has a first opening forming portion that has a first opening communicating the inne...