ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,129, issued on May 26, was assigned to YAMAHA Corp. (Hamamatsu, Japan).

"Performance operation apparatus" was invented by Shunsuke Miyoshi (Hamamatsu, Japan) and Michiko Tanoue (Hamamatsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A performance operation apparatus includes a distance sensor, an operating element and a holding portion. The distance sensor includes a first substrate and a second substrate and is configured to measure a distance between the first substrate and the second substrate. A conductor is arranged in each of the first substrate and the second substrate. The operating element is operable by an operator. The holding por...