ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,754, issued on Oct. 14, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Electrochemical oxygen reduction catalyst, air electrode, fuel cell, and metal-air cell" was invented by Keiichi Okubo (Toyota, Japan), Tsutomu Ioroi (Ikeda, Japan), Shin-Ichi Yamazaki (Toyonaka, Japan) and Masafumi Asahi (Ikeda, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided an electrochemical oxygen reduction catalyst including metal particles having oxygen reduction activity, an additive, and primary particles of a carrier having pores, in which the additive is at least one organic nitrogen compound, the metal particles are supported on the carri...