ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,678, issued on May 13, was assigned to KYOCERA Document Solutions Inc. (Osaka, Japan).

"Transfer unit and image forming apparatus therewith" was invented by Kazuhiro Okamoto (Osaka, Japan) and Masayuki Yamada (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A transfer unit includes, as transfer rollers, a first roller and a second roller, a first bearing member, a second bearing member, a roller holder, a first urging member, a second urging member, a switching cam, a driving mechanism, a unit frame, and a secured cam. By rotating the roller holder, one of the first and second rollers is arranged opposite an image carrying member and, by...