ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,828, issued on June 17, was assigned to KAMOSEIKO K.K. (Toyota, Japan).
"Driving force transmission device" was invented by Masashi Ozaki (Toyota-sh, Japan) and Yusuke Fukuoka (Seto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A transmission device (1) includes an oil feeder (7) including coil springs (9a, 9b) urging a feeder body (8) in a third direction. The third direction is perpendicular to a first direction and to a second direction, where the first direction is the axial direction of rotation of a pinion (2), and the second direction is a direction of a specific tangent of tangents to a circle being a path of the outermost peripherie...