ALEXANDRIA, Va., June 4 -- United States Patent no. 12,321,538, issued on June 3, was assigned to Wacom Co. Ltd. (Saitama, Japan).
"Electronic pen" was invented by Mamoru Ogata (Saitama, Japan) and Kenichi Ninomiya (Saitama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an electronic pen including a housing that is cylindrical and configured to incorporate an electronic pen function part that includes a circuit board. The housing has a side opening formed on a side surface of the housing. The side opening is configured to accommodate a side switch. The electronic pens also includes a side attachment member configured to be attached to the side opening of the housing. A first axial end of t...