ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,255, issued on Dec. 16, was assigned to Canon K.K. (Tokyo).

"Conveying apparatus and recording device" was invented by Shuichi Tokuda (Kanagawa, Japan), Takashi Sasaki (Kanagawa, Japan), Yuki Emoto (Tokyo), Koki Kudo (Kanagawa, Japan) and Hideyasu Ishihara (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a conveying apparatus, including: a conveying roller that conveys a recording medium; a first helical gear that rotates integrally with the conveying roller; a gear unit that engages with the first helical gear and generates a thrust force to the conveying roller. The gear unit includes a second helical gear and a third he...