ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,743, issued on Sept. 30, was assigned to OMRON Corp. (Kyoto, Japan).
"Foreign object detector" was invented by Takanori Imazawa (Kyoto, Japan) and Goro Nakao (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A foreign object detector includes multiple detection coils located between a transmitter coil in a transmitter device and a receiver coil in a receiver device to be electromagnetically coupled to one another, multiple capacitors each forming a resonant circuit together with a corresponding detection coil of the detection coils, a power supply circuit that supplies alternating current power having a predetermined frequency to each of...