US Patent Issued to Japan Aerospace Exploration Agency on Sept. 16 for "Riblet structure and object" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,596, issued on Sept. 16, was assigned to Japan Aerospace Exploration Agency (Tokyo).

"Riblet structure and object" was invented by Mitsuru Kurita (Tokyo), Hiroyuki Abe (Tokyo), Monami Sasamori (Tokyo) and Seigo Koga (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A riblet structure according to the present technology includes a plurality of riblets that are arranged in a width direction and each include a first wall portion and a second wall portion, the first wall portion being vertically provided to be substantially perpendicular to a bottom portion, the second wall portion including an inclined portion connected to the first wall portion a...