ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,641, issued on Nov. 3, was assigned to Kawasaki Jukogyo K.K. (Kobe, Japan).
"Hydrogen aircraft" was invented by Yoshiaki Kusumoto (Kobe, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydrogen aircraft including a gas turbine engine including a combustion gas space where a combustion gas flows and a non-combustion gas space radially adjacent to the combustion gas space; a fuel tank storing hydrogen fuel in a liquid phase; a fuel supply passage connecting the fuel tank to the gas turbine engine; a heat exchanger in the fuel supply passage and located in the combustion gas space; a heat shield movable between a first position and a second posit...