ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,120, issued on Dec. 23, was assigned to NIHON KOHDEN Corp. (Tokyo) and KAWASAKI GAKUEN Educational Foundation (Okayama, Japan).

"Muscle relaxation monitoring apparatus and patient monitor" was invented by Hiroshi Yoshihara (Tokorozawa, Japan), Shigeyoshi Kitamura (Tokorozawa, Japan), Kazuya Nagase (Tokorozawa, Japan), Shunji Iwata (Tokorozawa, Japan), Shunichi Takagi (Tokyo) and Hideki Nakatsuka (Kurashiki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A muscle relaxation monitoring apparatus includes: a stimulating circuit that stimulates a nerve of a living body; a signal detecting circuit that detects an electric signal generated by a musc...