ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,879, issued on July 15, was assigned to TOYOTA JIDOSHA K.K. (Aichi-Ken, Japan).
"Liquid hydrogen vaporizer" was invented by Naoaki Ito (Kariya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid hydrogen vaporizer for performing heat exchange between liquid hydrogen and helium gas and vaporizing liquid hydrogen, comprising: a lower first column tube which is a fin tube composed of a tube through which liquid hydrogen flows and a fin assembly attached to an outer periphery of the tube; and a lower casing through which helium gas flows outside the lower first column tube, wherein the fin assembly is composed of a sleeve covered on an outer ...