ALEXANDRIA, Va., March 24 -- United States Patent no. 12,585,139, issued on March 24, was assigned to TOPPAN Holdings Inc. (Tokyo).
"Aerial display apparatus" was invented by Yasuhiro Daiku (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An aerial display apparatus includes: a light source unit that emits light; a display device that transmits the light from the light source unit to display an image; a light control device that transmits the light from the display device to emit the light such that light intensity of the light has a peak in a direction oblique to a normal direction that is perpendicular to a first direction within a principal plane of the display device; and a mirror device that reflec...