ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,217, issued on Jan. 20.

"Cutter tool" was invented by Taro Yaguchi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A paper cutter comprises a main body (1) defined by a guide surface (3) formed for guiding a top crease line of paper; a cutter (6) attached to the main body, wherein a part of the cutter (6) protrudes from the guide surface (3); and a pair of cover pieces attached to the main body (1) so that the cover pieces sandwich and hide the guide surface (3) and the cutter (6), wherein at least one of the cover pieces opens and closes in a direction away from the cutter 6 and a direction towards the cutter 6 along a line parallel to the gu...