ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,463,415, issued on Nov. 4, was assigned to OMRON Corp. (Kyoto, Japan).
"Power cutoff device, power cutoff system equipped with same, method for protecting power cutoff device, and protection program" was invented by Kenichi Tabata (Kyoto, Japan), Daiki Ando (Kyoto, Japan) and Hidetoshi Yugen (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power cutoff device (20) comprises a power relay (21), a temperature calculation unit (22a), and a determination unit (22b). The power relay (21) includes a drive coil (21a). The temperature calculation unit (22a) calculates the temperature of the drive coil (21a) by calculating the resistance value of a ...