ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,047, issued on May 20, was assigned to KYOCERA Document Solutions Inc. (Osaka, Japan).
"Inkjet ink and inkjet recording apparatus" was invented by Azumi Ishida (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An inkjet ink contains a quinacridone pigment, a resin, and an aqueous medium. The resin includes an adsorbed resin adsorbed to the quinacridone pigment and a non-adsorbed resin not adsorbed to the quinacridone pigment. The non-adsorbed resin has a percentage content in the resin of greater than 0% by mass and no greater than 40% by mass. The aqueous medium contains a first organic solvent with a boiling point of at least 180deg C. ...