ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,710, issued on May 13, was assigned to KAO Corp. (Tokyo).
"Toner for developing electrostatic charge image" was invented by Yuta Izumiya (Wakayama, Japan) and Shogo Nomoto (Wakayama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a toner for development of electrostatic images which contains a colorant, a resin composition (P) and a resin composition (W), in which the resin composition (P) is a resin composition formed by subjecting an acid group-containing amorphous polyester-based resin (A) and an amine compound to condensation reaction, and the resin composition (W) is a resin composition formed by subjectin...