US Patent Issued to CANON on Aug. 25 for "Cartridge including a drum-unit with a frame that includes particular arranged recess portion and through-hole" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,717,272, issued on Aug. 25, was assigned to CANON K.K. (Tokyo).

"Cartridge including a drum-unit with a frame that includes particular arranged recess portion and through-hole" was invented by Noriyuki Komatsu (Shizuoka, Japan), Masaki Ojima (Shizuoka, Japan), Daisuke Abe (Shizuoka, Japan), Tomonori Mori (Kanagawa, Japan), Tadayuki Tsuda (Shizuoka, Japan), Tetsuya Numata (Shizuoka, Japan) and Naoya Asanuma (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cartridge includes a drum unit and a development unit. The drum unit includes a photosensitive drum, a frame, a transfer roller, and a cleaning member. The development unit includes a d...