ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,417, issued on May 6, was assigned to Fukuoka University (Fukuoka, Japan).

"Repetitive moment generating device" was invented by Masahiro Endo (Fukuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A repetitive moment generating device includes: eccentric weight members provided at shaft bodies in a state where the eccentric weight members intersect the rotatably held shaft bodies and in a state where the eccentric weight members are slidable in a direction that intersects the shaft bodies; sliders that are attached to the shaft bodies in a state where the sliders are slidable in a direction of shaft centers of the shaft bodies and in a stat...