ALEXANDRIA, Va., April 9 -- United States Patent no. 12,271,125, issued on April 8, was assigned to KYOCERA Document Solutions Inc. (Osaka, Japan).

"Developing device and image forming apparatus provided therewith" was invented by Ryo Yamada (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A developing device (3a-3d) is provided with a development container (20), a first stirring conveyance member (25), a second stirring conveyance member (26), and a developer carrier (31). The development container (20) has a first conveyance chamber (21), a second conveyance chamber (22), and a communication portion (20). The first stirring conveyance member (25) includes a first rotation shaft (23a) and a firs...