ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,587, issued on June 17, was assigned to Oki Electric Industry Co. Ltd. (Tokyo).

"Image formation apparatus, image formation method, and image formation program" was invented by Michiaki Haginoya (Tokyo) and Hiroshi Rokugawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An image formation apparatus may include a voltage supply device configured to control a transfer voltage such that a first ratio of a first transfer voltage to a second transfer voltage, is greater than a second ratio of a third transfer voltage to a fourth transfer voltage, where the first transfer voltage is the transfer voltage for a first medium having a first thickness, ...