US Patent Issued to Ricoh on April 29 for "Ink discharging device, method of discharging ink, method of manufacturing ink-discharged matter, white ink, and set" (Japanese Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,542, issued on April 29, was assigned to Ricoh Co. Ltd. (Tokyo).

"Ink discharging device, method of discharging ink, method of manufacturing ink-discharged matter, white ink, and set" was invented by Daisuke Ozaki (Kanagawa, Japan), Toshiyuki Kobashi (Tokyo), Hiroshi Gotou (Kanagawa, Japan), Ayaka Tanaka (Kanagawa, Japan) and Juichi Furukawa (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ink discharging device contains an ink containing an organic solvent with an SP value of from 9.0 to 12.0, a white pigment, a polyurethane resin with a glass transition temperature Tg of 0 degrees C. or lower, and water, and an ink discharging uni...