ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,583, issued on Dec. 23, was assigned to AGC Inc. (Tokyo).
"Perfluoropolymer, liquid composition, polymer electrolyte membrane, membrane electrode assembly and polymer electrolyte fuel cell" was invented by Takeshi Hirai (Tokyo), Daisuke Jomuta (Tokyo) and Chikaya Tamitsuji (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "To provide a perfluoropolymer capable of producing an electrolyte membrane excellent in electrical conductivity and mechanical strength under high temperature environment, as well as a liquid composition, a polymer electrolyte membrane, a membrane electrode assembly and a polymer electrolyte fuel cell, obtainable by using the p...