ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,170, issued on April 7, was assigned to MITSUBISHI HEAVY INDUSTRIES LTD. (Tokyo).

"Hydrogen production system" was invented by Atsushi Tanaka (Tokyo), Yoshio Seiki (Tokyo), Shuntaro Seto (Tokyo), Hideki Ito (Tokyo), Hidekazu Nishino (Tokyo) and Ichirou Toyoda (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydrogen production system includes: a hydrogen compound slurry in which a hydrogen compound member is suspended in a solvent containing water; a first vessel; a second vessel having an internal temperature higher than that of the first vessel; a first passage connecting the first vessel and the second vessel; and a second passage connecti...