ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,835, issued on Dec. 23, was assigned to Wacom Co. Ltd. (Saitama, Japan).
"Controller and tracking system" was invented by Hiroshi Munakata (Saitama, Japan), Jun Hasegawa (Saitama, Japan), Futa Imata (Saitama, Japan), Hiroshi Fujioka (Saitama, Japan), Yuta Sato (Saitama, Japan), Kiyokazu Sakai (Saitama, Japan) and Ryoichi Kikuchi (Saitama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pen-type controller includes a pen portion having a pen shape, a grip portion that intersects an axis direction of the pen portion, and a first light emitting part disposed at an end part of the grip portion, wherein the end part is closer to the axis of the pe...