ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,762, issued on June 30, was assigned to Canon K.K. (Tokyo).

"Image forming apparatus having charging brush with crimped and non-crimped fiber" was invented by Hiroki Tanaka (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An image forming apparatus includes a rotatable photosensitive member and a charging brush. The charging brush forms a charging portion in contact with a surface of the photosensitive member and charges the surface of the photosensitive member. The charging brush is provided with brush fiber including a first type of fiber which is crimped and a second type of fiber which is non-crimped. A ratio of the first type of ...