ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,682, issued on April 21, was assigned to Kawasaki Jukogyo K.K. (Kobe, Japan).
"Composite material panel structural body and method of manufacturing same" was invented by Akio Kawamata (Kobe, Japan) and Yoichi Nakamura (Kobe, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The number of composite material layers laminated to realize a preset thickness of a substrate, for example, a web portion of a panel structural body is referred to as a reference lamination number. Doubler layers that are the composite material layers added to the reference lamination number are laminated in at least a rib base bottom portion of the substrate. Reinforced fib...