ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,124, issued on March 18.

"Clutch device with claw member for selectively locking rings" was invented by Osamu Katayama (Fukuroi, Japan) and Takashi Kurita (Fukuroi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A clutch device includes an inner ring, an outer ring and claw members to selectively lock the rings of the clutch device. A first ring among the inner and outer rings has a toothed surface that faces a second ring among the inner and outer rings. The toothed surface includes a plurality of teeth arranged in a circumferential direction to protrude toward the second ring. A given tooth includes a first surface and a second surface that...