ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,888, issued on June 16, was assigned to Wacom Co. Ltd. (Saitama, Japan).
"Cartridge and electronic pen" was invented by Susumu Yamada (Saitama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a cartridge used in an electronic pen and housed in a pen body configured as an enclosure of the electronic pen, the cartridge including a first inner electrode and a second inner electrode arranged on the inner surface of a cartridge body configured as an enclosure of the cartridge, a signal source configured to supply a signal to the first inner electrode, and a signal detector configured to detect a signal appearing on the second inner elect...