US Patent Issued to RICOH on Dec. 16 for "Developing device, process cartridge, and image forming apparatus" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,652, issued on Dec. 16, was assigned to RICOH COMPANY LTD. (Tokyo).

"Developing device, process cartridge, and image forming apparatus" was invented by Yumi Inoue (Kanagawa, Japan), Osamu Saito (Kanagawa, Japan), Minoru Toyoda (Kanagawa, Japan), Tatsuya Ohhira (Kanagawa, Japan), Yuuji Ishikura (Kanagawa, Japan) and Toshiki Hayashi (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A developing device includes a developer bearer, a first conveying screw conveying developer from one end to another end of a first conveyance path in a first direction, a second conveying screw conveying the developer in a direction opposite to the first dire...