ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,541, issued on Sept. 8, was assigned to Wacom Co. Ltd. (Saitama, Japan).

"Sensor and position detection apparatus" was invented by Hiroshi Mizuhashi (Saitama, Japan), Fumitaka Goto (Saitama, Japan), Joo Hoon Lee (Saitama, Japan) and Hayato Kurasawa (Saitama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sensor is provided, which includes an on-cell mutual-capacitance touch sensor and a RX electrode layer (RX sensor coil group) including a plurality of RX electrodes that detect a pen alternating magnetic field generated by a pen, which has accumulated energy through an alternating magnetic field from a TX electrode layer (TX sensor coil grou...