ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,394, issued on March 31, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan) and CATALER Corp. (Kakegawa, Japan).

"Mesoporous carbon, electrode catalyst for fuel cell, and catalyst layer" was invented by Naoki Hasegawa (Nagakute, Japan), Kazuhisa Yano (Nagakute, Japan), Tomohiro Takeshita (Nagakute, Japan), Rui Imoto (Fujisawa, Japan), Kumiko Nomura (Okazaki, Japan), Yunan Wang (Machida, Japan), Yuko Matsumura (Iwata, Japan) and Yuuki Kasama (Yokkaichi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Mesoporous carbon includes a linked structure in which carbon particles are linked. The carbon particles have primary pores and are primary parti...