ALEXANDRIA, Va., July 3 -- United States Patent no. 12,346,039, issued on July 1, was assigned to Canon K.K. (Tokyo).
"Rotatable polygon mirror, optical deflector, scanning optical device, and image forming apparatus" was invented by Hisanori Kobayashi (Kanagawa, Japan), Yoshihiko Tanaka (Shizuoka, Japan), Takatoshi Tanaka (Shizuoka, Japan) and Naoki Matsushita (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotatable polygon mirror includes a plurality of reflecting surfaces provided in parallel to a rotational axis direction, first surface and second surface of polygonal shape perpendicular to the plurality of reflecting surface and of which each side is continued to the plurality of refl...