ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,988, issued on April 14, was assigned to KYOCERA Document Solutions Inc. (Osaka, Japan).

"Image forming apparatus" was invented by Ryotaro Todokoro (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical scanning device includes a light source unit, a polygonal mirror, a scanning lens, a casing, and a temperature sensor. The light source unit is configured to emit a laser beam. The polygonal mirror is configured to reflect the emitted laser beam from the light source unit by being rotated about a rotation axis extending in an upper-and-lower direction, whereby a peripheral surface of an image bearing member is scanned in a main scan...