ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,813, issued on Sept. 8, was assigned to TOYOTA JIDOSHA K.K. (Aichi-Ken, Japan) and SUZUKI SHOKAN Co. LTD. (Tokyo).
"Vaporizer" was invented by Ryosuke Yamamoto (Seto, Japan), Toshihisa Tanaka (Toyota, Japan) and Taichi Oda (Toyota, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vaporizer, through which a liquid heat medium and liquid hydrogen flow, causing the heat medium to vaporize the liquid hydrogen, includes: a spiral tube, spirally wound, in which liquid hydrogen flows; a casing being a hollow long member housing the spiral tube thereinside, the heat medium flowing on an outer surface of the spiral tube; and a spacer being a long membe...