ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,773, issued on Jan. 13, was assigned to RICOH COMPANY LTD. (Tokyo).

"Movable device, distance-measuring device, display device, and wavelength-variable laser" was invented by Masayuki Fujishima (Kanagawa, Japan) and Shuichi Suzuki (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A movable device includes: a mechanism configured to drive a movable portion, the mechanism including: a gear including a first protrusion; and a cam in contact with the movable portion; and a driver to drive the mechanism, the driver including: a second protrusion to engage with the first protrusion; and an actuator to cause the second protrusion to reciproca...