ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,443,296, issued on Oct. 14, was assigned to Lenovo (Singapore) Pte. Ltd. (Singapore).

"Touch pad" was invented by Akihisa Okuni (Kanagawa, Japan), Issei Kurosawa (Kanagawa, Japan) and Kazumi Nakaju (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A touch pad, on which a pointing operation is performed by a hand, includes: a sensor board configured to recognize a touch position by a hand; an outer frame configured to be fixed to the sensor board; a cross-shaped inner frame configured to be disposed on an inner side of the outer frame, in which one ends of four arm portions are connected and the other ends extend toward four locations of th...