ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,697,716, issued on Aug. 4, was assigned to Man-Machine Synergy Effectors Inc. (Shiga, Japan).

"Parallel link mechanism" was invented by Katsuya Kanaoka (Shiga, Japan) and Ying Zi Zhang (Shiga, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a parallel link mechanism that realizes both coupled drive and gravitationally decoupled reduction. The parallel link mechanism 10A includes a first parallel link portion 47 (40, 41, 42) swingably connected at a base end to a second movable body 30, a second parallel link portion 48 (42, 43, 44) swingably connected at a base end to a tip end of the first parallel link portion 47, a first arm portion 4...