ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,817, issued on March 25, was assigned to Kawasaki Jukogyo K.K. (Kobe, Japan).

"Composite panel structure and method of manufacturing" was invented by Akio Kawamata (Kobe, Japan) and Yoichi Nakamura (Kobe, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A panel structure (10A) includes a substrate portion (11) and at least two ribs (12) standing on the substrate portion (11) and intersecting with each other. A substrate material portion (24) constituting the substrate portion (11) is formed by using at least matrix resin. Continuous fibers or slit continuous fibers are arranged at a position corresponding to the ribs (12) and a rib intersecting...